The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates

Luque, E.; Pieres, A.; Santiago, B.; Yanny, B.; Vivas, A. K.; Queiroz, A.; Drlica-Wagner, A.; Morganson, E.; Balbinot, E.; Marshall, J. L.; Li, T. S.; Neto, A. Fausti; da Costa, L. N.; Maia, M. A.  G.; Bechtol, K.; Kim, A. G.; Bernstein, G. M.; Dodelson, S.; Whiteway, L.; Diehl, H. T.; Finley, D. A.; Abbott, T.; Abdalla, F. B.; Allam, S.; Annis, J.; Benoit-Levy, A.; Bertin, E.; Brooks, D.; Burke, D. L.; Rosell, A. Carnero; Kind, M. Carrasco; Carretero, J.; Cunha, C. E.; D'Andrea, C. B.; Desai, S.; Doel, P.; Evrard, A. E.; Flaugher, B.; Fosalba, P.; Gerdes, D. W.; Goldstein, D. A.; Gruen, D.; Gruendl, R. A.; Gutierrez, G.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Lahav, O.; Martini, P.; Miquel, R.; Nord, B.; Ogando, R.; Plazas, A. A.; Romer, A. K.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Sevilla-Noarbe, I.; Smith, R. C.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E.  C.; Tarle, G.; Thomas, D.; Walker, A. R.; Sobreira, F.

doi:10.1093/mnras/stx405

Title: The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates

Abstract

We report the discovery of two new candidate stellar systems in the constellation of Cetus using the data from the first two years of the Dark Energy Survey (DES). The objects, DES J0111-1341 and DES J0225+0304, are located at a heliocentric distance of ~25 kpc and appear to have old and metal-poor populations. Their distances to the Sagittarius orbital plane, ~1.73 kpc (DES J0111-1341) and ~0.50 kpc (DES J0225+0304), indicate that they are possibly associated with the Sagittarius dwarf stream. The half-light radius (rh ≃ 4.55 pc) and luminosity (MV ≃ +0.3) of DES J0111-1341 are consistent with it being an ultrafaint stellar cluster, while the half-light radius (rh ≃ 18.55 pc) and luminosity (MV ≃ -1.1) of DES J0225+0304 place it in an ambiguous region of size-luminosity space between stellar clusters and dwarf galaxies. Determinations of the characteristic parameters of the Sagittarius stream, metallicity spread (-2.18 ≲ [Fe/H] ≲ -0.95) and distance gradient (23 kpc ≲ D⊙ ≲ 29 kpc), within the DES footprint in the Southern hemisphere, using the same DES data, also indicate a possible association between these systems. If these objects are confirmed through spectroscopic follow-up to be gravitationally bound systems and to share a Galacticmore »« less

Authors:

Luque, E. ^[1]; Pieres, A. ^[1]; Santiago, B. ^[1]; Yanny, B. ^[2]; Vivas, A. K. ^[3]; Queiroz, A. ^[1]; Drlica-Wagner, A. ^[2]; Morganson, E. ^[4]; Balbinot, E. ^[5]; Marshall, J. L. ^[6]; Li, T. S. ^[6]; Neto, A. Fausti ^[7]; da Costa, L. N. ^[8]; Maia, M. A. G. ^[8]; Bechtol, K. ^[9]; Kim, A. G. ^[10]; Bernstein, G. M. ^[11]; Dodelson, S. ^[12]; Whiteway, L. ^[13]; Diehl, H. T. ^[2] more »

Instituto de Fisica, Porto Alegre (Brazil); Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Cerro Tololo Inter-American Observatory, La Serena (Chile)
National Center for Supercomputing Applications, Urbana, IL (United States)
Univ. of Surrey, Guildford (United Kingdom)
Texas A & M Univ., College Station, TX (United States)
Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil)
Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Observatorio Nacional, Rio de Janeiro (Brazil)
Univ. of Chicago, Chicago, IL (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of Pennsylvania, Philadelphia, PA (United States)
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, Chicago, IL (United States)
Univ. College London, London (United Kingdom)
Cerro Tolol Inter-American Observatory, La Serena (Chile)
Univ. College London, London (United Kingdom); Rhodes Univ., Grahamstown (South Africa)
Univ. College London, London (United Kingdom); Institut d'Astrophysique de Paris, Paris (France); Sorbonne Univ., Paris (France)
Institut d'Astrophysique de Paris, Paris (France); Sorbonne Univ., Paris (France)
Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
National Center for Supercomputing Applications, Urbana, IL (United States); Univ. of Illinois, Urbana, IL (United States)
Institut de Ciencies de l'Espai, Barcelona (Spain); The Barcelona Institute of Science and Technology, Barcelona (Spain)
Stanford Univ., Stanford, CA (United States)
Univ. of Portsmouth, Portsmouth (United Kingdom); Univ. of Southampton, Southampton (United Kingdom)
IIT Hyderabad, Telangana (India)
Univ. of Michigan, Ann Arbor, MI (United States)
Institut de Ciencies de l'Espai, Barcelona (Spain)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Australian Astronomical Observatory, North Ryde, NSW (Australia)
The Ohio State Univ., Columbus, OH (United States)
The Barcelona Institute of Science and Technology, Barcelona (Spain); Institucio Catalana de Recerca i Estudis Avancats, Barcelona (Spain)
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Univ. of Sussex, Brighton (United Kingdom)
Centro de Investigaciones Energeticas, Madrid (Spain)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Portsmouth, Portsmouth (United Kingdom)
Lab. Interinstitucional de e-Astronomia - LIneA, Rio de Janeiro (Brazil); Univ. Federal do ABC, Santo Andre (Brazil)

Publication Date:: Fri Feb 17 00:00:00 EST 2017

Research Org.:: SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Org.:: DES; The Dark Energy Survey Collaboration

OSTI Identifier:: 1362056

Alternate Identifier(s):: OSTI ID: 1352815; OSTI ID: 1361150; OSTI ID: 1476500

Report Number(s):: arXiv:1608.04033; FERMILAB-PUB-16-294
Journal ID: ISSN 0035-8711; 1481252

Grant/Contract Number:: AC02-07CH11359; AC05-00OR22725; AC02-76SF00515; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Monthly Notices of the Royal Astronomical Society

Additional Journal Information:: Journal Volume: 468; Journal Issue: 1; Journal ID: ISSN 0035-8711

Publisher:: Royal Astronomical Society

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; globular clusters: general; galaxies: dwarf

Citation Formats


                    Luque, E., Pieres, A., Santiago, B., Yanny, B., Vivas, A. K., Queiroz, A., Drlica-Wagner, A., Morganson, E., Balbinot, E., Marshall, J. L., Li, T. S., Neto, A. Fausti, da Costa, L. N., Maia, M. A.  G., Bechtol, K., Kim, A. G., Bernstein, G. M., Dodelson, S., Whiteway, L., Diehl, H. T., Finley, D. A., Abbott, T., Abdalla, F. B., Allam, S., Annis, J., Benoit-Levy, A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., D'Andrea, C. B., Desai, S., Doel, P., Evrard, A. E., Flaugher, B., Fosalba, P., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., James, D. J., Kuehn, K., Kuropatkin, N., Lahav, O., Martini, P., Miquel, R., Nord, B., Ogando, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Suchyta, E., Swanson, M. E.  C., Tarle, G., Thomas, D., Walker, A. R., and Sobreira, F. The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates.  United States: N. p., 2017. 
Web.  doi:10.1093/mnras/stx405.

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                    Luque, E., Pieres, A., Santiago, B., Yanny, B., Vivas, A. K., Queiroz, A., Drlica-Wagner, A., Morganson, E., Balbinot, E., Marshall, J. L., Li, T. S., Neto, A. Fausti, da Costa, L. N., Maia, M. A.  G., Bechtol, K., Kim, A. G., Bernstein, G. M., Dodelson, S., Whiteway, L., Diehl, H. T., Finley, D. A., Abbott, T., Abdalla, F. B., Allam, S., Annis, J., Benoit-Levy, A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., D'Andrea, C. B., Desai, S., Doel, P., Evrard, A. E., Flaugher, B., Fosalba, P., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., James, D. J., Kuehn, K., Kuropatkin, N., Lahav, O., Martini, P., Miquel, R., Nord, B., Ogando, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Suchyta, E., Swanson, M. E.  C., Tarle, G., Thomas, D., Walker, A. R., & Sobreira, F. The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates.  United States.  https://doi.org/10.1093/mnras/stx405

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                    Luque, E., Pieres, A., Santiago, B., Yanny, B., Vivas, A. K., Queiroz, A., Drlica-Wagner, A., Morganson, E., Balbinot, E., Marshall, J. L., Li, T. S., Neto, A. Fausti, da Costa, L. N., Maia, M. A.  G., Bechtol, K., Kim, A. G., Bernstein, G. M., Dodelson, S., Whiteway, L., Diehl, H. T., Finley, D. A., Abbott, T., Abdalla, F. B., Allam, S., Annis, J., Benoit-Levy, A., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., D'Andrea, C. B., Desai, S., Doel, P., Evrard, A. E., Flaugher, B., Fosalba, P., Gerdes, D. W., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gutierrez, G., James, D. J., Kuehn, K., Kuropatkin, N., Lahav, O., Martini, P., Miquel, R., Nord, B., Ogando, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Suchyta, E., Swanson, M. E.  C., Tarle, G., Thomas, D., Walker, A. R., and Sobreira, F. Fri .  
"The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates".  United States.  https://doi.org/10.1093/mnras/stx405.  https://www.osti.gov/servlets/purl/1362056.

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@article{osti_1362056,

  title        = {The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates},

  author       = {Luque, E. and Pieres, A. and Santiago, B. and Yanny, B. and Vivas, A. K. and Queiroz, A. and Drlica-Wagner, A. and Morganson, E. and Balbinot, E. and Marshall, J. L. and Li, T. S. and Neto, A. Fausti and da Costa, L. N. and Maia, M. A.  G. and Bechtol, K. and Kim, A. G. and Bernstein, G. M. and Dodelson, S. and Whiteway, L. and Diehl, H. T. and Finley, D. A. and Abbott, T. and Abdalla, F. B. and Allam, S. and Annis, J. and Benoit-Levy, A. and Bertin, E. and Brooks, D. and Burke, D. L. and Rosell, A. Carnero and Kind, M. Carrasco and Carretero, J. and Cunha, C. E. and D'Andrea, C. B. and Desai, S. and Doel, P. and Evrard, A. E. and Flaugher, B. and Fosalba, P. and Gerdes, D. W. and Goldstein, D. A. and Gruen, D. and Gruendl, R. A. and Gutierrez, G. and James, D. J. and Kuehn, K. and Kuropatkin, N. and Lahav, O. and Martini, P. and Miquel, R. and Nord, B. and Ogando, R. and Plazas, A. A. and Romer, A. K. and Sanchez, E. and Scarpine, V. and Schubnell, M. and Sevilla-Noarbe, I. and Smith, R. C. and Soares-Santos, M. and Suchyta, E. and Swanson, M. E.  C. and Tarle, G. and Thomas, D. and Walker, A. R. and Sobreira, F.},

  abstractNote = {We report the discovery of two new candidate stellar systems in the constellation of Cetus using the data from the first two years of the Dark Energy Survey (DES). The objects, DES J0111-1341 and DES J0225+0304, are located at a heliocentric distance of ~25 kpc and appear to have old and metal-poor populations. Their distances to the Sagittarius orbital plane, ~1.73 kpc (DES J0111-1341) and ~0.50 kpc (DES J0225+0304), indicate that they are possibly associated with the Sagittarius dwarf stream. The half-light radius (rh ≃ 4.55 pc) and luminosity (MV ≃ +0.3) of DES J0111-1341 are consistent with it being an ultrafaint stellar cluster, while the half-light radius (rh ≃ 18.55 pc) and luminosity (MV ≃ -1.1) of DES J0225+0304 place it in an ambiguous region of size-luminosity space between stellar clusters and dwarf galaxies. Determinations of the characteristic parameters of the Sagittarius stream, metallicity spread (-2.18 ≲ [Fe/H] ≲ -0.95) and distance gradient (23 kpc ≲ D⊙ ≲ 29 kpc), within the DES footprint in the Southern hemisphere, using the same DES data, also indicate a possible association between these systems. If these objects are confirmed through spectroscopic follow-up to be gravitationally bound systems and to share a Galactic trajectory with the Sagittarius stream, DES J0111-1341 and DES J0225+0304 would be the first ultrafaint stellar systems associated with the Sagittarius stream. Furthermore, DES J0225+0304 would also be the first confirmed case of an ultrafaint satellite of a satellite.},

  doi          = {10.1093/mnras/stx405},

  journal      = {Monthly Notices of the Royal Astronomical Society},

  number       = 1,

  volume       = 468,

  place        = {United States},

  year         = {Fri Feb 17 00:00:00 EST 2017},

  month        = {Fri Feb 17 00:00:00 EST 2017}

}

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Torrealba, G.; Koposov, S. E.; Belokurov, V.
Monthly Notices of the Royal Astronomical Society, Vol. 459, Issue 3
DOI: 10.1093/mnras/stw733

On the variation of the initial mass function
journal, April 2001

Kroupa, P.
Monthly Notices of the Royal Astronomical Society, Vol. 322, Issue 2
DOI: 10.1046/j.1365-8711.2001.04022.x

The Discovery of Two Extremely Low Luminosity Milky Way Globular Clusters
journal, November 2007

Koposov, S.; de Jong, J. T. A.; Belokurov, V.
The Astrophysical Journal, Vol. 669, Issue 1
DOI: 10.1086/521422

The Overdensity in Virgo, Sagittarius Debris, and the Asymmetric Spheroid
journal, October 2007

Newberg, Heidi Jo; Yanny, Brian; Cole, Nate
The Astrophysical Journal, Vol. 668, Issue 1
DOI: 10.1086/521068

Tracing Sagittarius Structure with sdss and Segue Imaging and Spectroscopy
journal, July 2009

Yanny, Brian; Newberg, Heidi Jo; Johnson, Jennifer A.
The Astrophysical Journal, Vol. 700, Issue 2
DOI: 10.1088/0004-637X/700/2/1282

The Sagittarius Dwarf Galaxy: a Model for Evolution in a Triaxial Milky way halo
journal, April 2010

Law, David R.; Majewski, Steven R.
The Astrophysical Journal, Vol. 714, Issue 1
DOI: 10.1088/0004-637X/714/1/229

Beasts of the Southern Wild: Discovery of nine Ultra Faint Satellites in the Vicinity of the Magellanic Clouds
journal, May 2015

Koposov, Sergey E.; Belokurov, Vasily; Torrealba, Gabriel
The Astrophysical Journal, Vol. 805, Issue 2
DOI: 10.1088/0004-637X/805/2/130

Abundances and Kinematics of the Globular Cluster Systems of the Galaxy and of the Sagittarius Dwarf
journal, June 1995

Da Costa, G. S.; Armandroff, T. E.
The Astronomical Journal, Vol. 109
DOI: 10.1086/117469

GLOBULAR CLUSTERS IN THE OUTER GALACTIC HALO: NEW HUBBLE SPACE TELESCOPE /ADVANCED CAMERA FOR SURVEYS IMAGING OF SIX GLOBULAR CLUSTERS AND THE GALACTIC GLOBULAR CLUSTER AGE-METALLICITY RELATION
journal, August 2011

Dotter, Aaron; Sarajedini, Ata; Anderson, Jay
The Astrophysical Journal, Vol. 738, Issue 1
DOI: 10.1088/0004-637X/738/1/74

Kinematics and Chemistry of Recently Discovered Reticulum 2 and Horologium 1 Dwarf Galaxies
journal, September 2015

Koposov, Sergey E.; Casey, Andrew R.; Belokurov, Vasily
The Astrophysical Journal, Vol. 811, Issue 1
DOI: 10.1088/0004-637X/811/1/62

The Northern Wraps of the Sagittarius Stream as Traced by red Clump Stars: Distances, Intrinsic Widths, and Stellar Densities
journal, August 2010

Correnti, M.; Bellazzini, M.; Ibata, R. A.
The Astrophysical Journal, Vol. 721, Issue 1
DOI: 10.1088/0004-637X/721/1/329

A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM
journal, December 2012

Slater, C. T.; Bell, E. F.; Schlafly, E. F.
The Astrophysical Journal, Vol. 762, Issue 1
DOI: 10.1088/0004-637X/762/1/6

Old open clusters in the Sagittarius dwarf spheroidal galaxy tidal stream - kith or kin?
journal, July 2009

Carraro, Giovanni; Bensby, Thomas
Monthly Notices of the Royal Astronomical Society: Letters, Vol. 397, Issue 1
DOI: 10.1111/j.1745-3933.2009.00694.x

Ghostly streams from the formation of the Galaxy’s halo
journal, July 1995

Lynden-Bell, D.; Lynden-Bell, R. M.
Monthly Notices of the Royal Astronomical Society, Vol. 275, Issue 2
DOI: 10.1093/mnras/275.2.429

Works referencing / citing this record:

Nine tiny star clusters in Gaia DR1, PS1, and DES
journal, January 2019

Torrealba, G.; Belokurov, V.; Koposov, S. E.
Monthly Notices of the Royal Astronomical Society, Vol. 484, Issue 2
DOI: 10.1093/mnras/stz071

Robust velocity dispersion and binary population modelling of the ultrafaint dwarf galaxy Reticulum II
journal, June 2019

Minor, Quinn E.; Pace, Andrew B.; Marshall, Jennifer L.
Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 2
DOI: 10.1093/mnras/stz1468

The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2
journal, June 2019

Torrealba, G.; Belokurov, V.; Koposov, S. E.
Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 2
DOI: 10.1093/mnras/stz1624

How low does it go? Too few Galactic satellites with standard reionization quenching
journal, July 2019

Graus, Andrew S.; Bullock, James S.; Kelley, Tyler
Monthly Notices of the Royal Astronomical Society, Vol. 488, Issue 4
DOI: 10.1093/mnras/stz1992

Identification of RR Lyrae Stars in Multiband, Sparsely Sampled Data from the Dark Energy Survey Using Template Fitting and Random Forest Classification
journal, June 2019

Stringer, K. M.; Long, J. P.; Macri, L. M.
The Astronomical Journal, Vol. 158, Issue 1
DOI: 10.3847/1538-3881/ab1f46

Chemical Abundance Analysis of Three α -poor, Metal-poor Stars in the Ultrafaint Dwarf Galaxy Horologium I
journal, January 2018

Nagasawa, D. Q.; Marshall, J. L.; Li, T. S.
The Astrophysical Journal, Vol. 852, Issue 2
DOI: 10.3847/1538-4357/aaa01d

On the Nature of Ultra-faint Dwarf Galaxy Candidates. II. The Case of Cetus II
journal, April 2018

Conn, Blair C.; Jerjen, Helmut; Kim, Dongwon
The Astrophysical Journal, Vol. 857, Issue 1
DOI: 10.3847/1538-4357/aab61c

Stellar Streams Discovered in the Dark Energy Survey
journal, July 2018

Shipp, N.; Drlica-Wagner, A.; Balbinot, E.
The Astrophysical Journal, Vol. 862, Issue 2
DOI: 10.3847/1538-4357/aacdab

Dancing in the Dark: Uncertainty in Ultrafaint Dwarf Galaxy Predictions from Cosmological Simulations
journal, March 2019

Munshi, Ferah; Brooks, Alyson M.; Christensen, Charlotte
The Astrophysical Journal, Vol. 874, Issue 1
DOI: 10.3847/1538-4357/ab0085

Proper Motions of Milky Way Ultra-faint Satellites with Gaia DR2 × DES DR1
journal, April 2019

Pace, Andrew B.; Li, Ting S.
The Astrophysical Journal, Vol. 875, Issue 1
DOI: 10.3847/1538-4357/ab0aee

A Faint Halo Star Cluster Discovered in the Blanco Imaging of the Southern Sky Survey
journal, April 2019

Mau, S.; Drlica-Wagner, A.; Bechtol, K.
The Astrophysical Journal, Vol. 875, Issue 2
DOI: 10.3847/1538-4357/ab0bb8

Chemical Abundance Analysis of Tucana III, the Second r -process Enhanced Ultra-faint Dwarf Galaxy
journal, September 2019

Marshall, J. L.; Hansen, T.; Simon, J. D.
The Astrophysical Journal, Vol. 882, Issue 2
DOI: 10.3847/1538-4357/ab3653

The hidden giant: Discovery of an enormous Galactic dwarf satellite in Gaia DR2
text, January 2019

Torrealba, G.; Belokurov, Vasily; Koposov, Sergey
Apollo - University of Cambridge Repository
DOI: 10.17863/cam.46984

A Dark Matter Hurricane: Measuring the S1 Stream with Dark Matter Detectors
text, January 2018

O'Hare, Ciaran A. J.; McCabe, Christopher; Evans, N. Wyn
arXiv
DOI: 10.48550/arxiv.1807.09004

Identification of RR Lyrae stars in multiband, sparsely-sampled data from the Dark Energy Survey using template fitting and Random Forest classification
text, January 2019

Stringer, K. M.; Long, J. P.; Macri, L. M.
arXiv
DOI: 10.48550/arxiv.1905.00428

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Full Text Available

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Title: The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates

Abstract

Citation Formats

A Comprehensive Maximum Likelihood Analysis of the Structural Properties of Faint Milky Way Satellites journal, September 2008

Stellar Kinematics and Metallicities in the Ultra-Faint Dwarf Galaxy Reticulum ii journal, July 2015

Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data journal, February 2016

SExtractor: Software for source extraction journal, June 1996

The acs Survey of Galactic Globular Clusters. ix. Horizontal Branch Morphology and the Second Parameter Phenomenon journal, December 2009

Kim 3: an Ultra-Faint star Cluster in the Constellation of Centaurus journal, March 2016

The Discovery of an Ultra-Faint star Cluster in the Constellation of ursa Minor journal, June 2012

The Disruption of the Sagittarius Dwarf Galaxy journal, October 1995

Discovery of a Faint Outer halo Milky way star Cluster in the Southern sky journal, April 2015

The Ghost of Sagittarius and Lumps in the Halo of the Milky Way journal, April 2002

Precession of the Sagittarius stream journal, November 2013

A new Distant Milky way Globular Cluster in the Pan-Starrs1 3π Survey journal, April 2014

Eight Ultra-Faint Galaxy Candidates Discovered in year two of the dark Energy Survey journal, November 2015

The dark Energy Camera journal, October 2015

A new Milky way halo star Cluster in the Southern Galactic sky journal, April 2013

emcee : The MCMC Hammer journal, March 2013

A Hero'S Little Horse: Discovery of a Dissolving star Cluster in Pegasus journal, January 2015

Dynamical analysis of nearby clusters: Automated astrometry from the ground: precision proper motions over a wide field journal, June 2013

parsec : stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code journal, October 2012

Assessing the Milky way Satellites Associated with the Sagittarius Dwarf Spheroidal Galaxy journal, July 2010

Sagittarius Tidal Debris 90 Kiloparsecs from the Galactic Center journal, September 2003

Eight new Milky way Companions Discovered in First-Year dark Energy Survey data journal, June 2015

The star formation history of the Sagittarius stream journal, June 2015

A search for stellar tidal debris of defunct dwarf galaxies around globular clusters in the inner Galactic halo journal, October 2014

A NEW FAINT MILKY WAY SATELLITE DISCOVERED IN THE PAN-STARRS1 3 π SURVEY journal, March 2015

The Field of Streams: Sagittarius and Its Siblings journal, April 2006

The Sagittarius Streams in the Southern Galactic Hemisphere journal, April 2012

Physical properties of star clusters in the outer LMC as observed by the DES journal, May 2016

Building Up the Globular Cluster System of the Milky Way: The Contribution of the Sagittarius Galaxy journal, January 2003

A dwarf satellite galaxy in Sagittarius journal, July 1994

Big Fish, Little Fish: two new Ultra-Faint Satellites of the Milky way journal, March 2010

The Blanco Cosmology Survey: data Acquisition, Processing, Calibration, Quality Diagnostics, and data Release journal, September 2012

A Two Micron All Sky Survey View of the Sagittarius Dwarf Galaxy. I. Morphology of the Sagittarius Core and Tidal Arms journal, December 2003

Metal Abundances in Extremely Distant Galactic Old Open Clusters. I. Berkeley 29 and Saurer 1 journal, October 2004

SAGITTARIUS II, DRACO II AND LAEVENS 3: THREE NEW MILKY WAY SATELLITES DISCOVERED IN THE PAN-STARRS 1 3 π SURVEY journal, October 2015

Chemical abundances of giant stars in NGC 5053 and NGC 5634, two globular clusters associated with the Sagittarius dwarf spheroidal galaxy? journal, July 2015

Horologium ii: a Second Ultra-Faint Milky way Satellite in the Horologium Constellation journal, July 2015

The Observed Properties of Dwarf Galaxies in and Around the Local Group journal, June 2012

Selecting Sagittarius: Identification and Chemical Characterization of the Sagittarius Stream journal, June 2015

Magellan/M2fs Spectroscopy of Tucana 2 and grus 1 journal, February 2016

MAGELLAN /M2FS SPECTROSCOPY OF THE RETICULUM 2 DWARF SPHEROIDAL GALAXY journal, July 2015

Hydra ii: a Faint and Compact Milky way Dwarf Galaxy Found in the Survey of the Magellanic Stellar History journal, April 2015

The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater journal, April 2016

On the variation of the initial mass function journal, April 2001

The Discovery of Two Extremely Low Luminosity Milky Way Globular Clusters journal, November 2007

The Overdensity in Virgo, Sagittarius Debris, and the Asymmetric Spheroid journal, October 2007

Tracing Sagittarius Structure with sdss and Segue Imaging and Spectroscopy journal, July 2009

The Sagittarius Dwarf Galaxy: a Model for Evolution in a Triaxial Milky way halo journal, April 2010

Beasts of the Southern Wild: Discovery of nine Ultra Faint Satellites in the Vicinity of the Magellanic Clouds journal, May 2015

Abundances and Kinematics of the Globular Cluster Systems of the Galaxy and of the Sagittarius Dwarf journal, June 1995

GLOBULAR CLUSTERS IN THE OUTER GALACTIC HALO: NEW HUBBLE SPACE TELESCOPE /ADVANCED CAMERA FOR SURVEYS IMAGING OF SIX GLOBULAR CLUSTERS AND THE GALACTIC GLOBULAR CLUSTER AGE-METALLICITY RELATION journal, August 2011

Kinematics and Chemistry of Recently Discovered Reticulum 2 and Horologium 1 Dwarf Galaxies journal, September 2015

The Northern Wraps of the Sagittarius Stream as Traced by red Clump Stars: Distances, Intrinsic Widths, and Stellar Densities journal, August 2010

A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM journal, December 2012

Old open clusters in the Sagittarius dwarf spheroidal galaxy tidal stream - kith or kin? journal, July 2009

Ghostly streams from the formation of the Galaxy’s halo journal, July 1995

Nine tiny star clusters in Gaia DR1, PS1, and DES journal, January 2019

Robust velocity dispersion and binary population modelling of the ultrafaint dwarf galaxy Reticulum II journal, June 2019

The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2 journal, June 2019

How low does it go? Too few Galactic satellites with standard reionization quenching journal, July 2019

Identification of RR Lyrae Stars in Multiband, Sparsely Sampled Data from the Dark Energy Survey Using Template Fitting and Random Forest Classification journal, June 2019

Chemical Abundance Analysis of Three α -poor, Metal-poor Stars in the Ultrafaint Dwarf Galaxy Horologium I journal, January 2018

On the Nature of Ultra-faint Dwarf Galaxy Candidates. II. The Case of Cetus II journal, April 2018

Stellar Streams Discovered in the Dark Energy Survey journal, July 2018

Dancing in the Dark: Uncertainty in Ultrafaint Dwarf Galaxy Predictions from Cosmological Simulations journal, March 2019

Proper Motions of Milky Way Ultra-faint Satellites with Gaia DR2 × DES DR1 journal, April 2019

A Faint Halo Star Cluster Discovered in the Blanco Imaging of the Southern Sky Survey journal, April 2019

Chemical Abundance Analysis of Tucana III, the Second r -process Enhanced Ultra-faint Dwarf Galaxy journal, September 2019

The hidden giant: Discovery of an enormous Galactic dwarf satellite in Gaia DR2 text, January 2019

A Dark Matter Hurricane: Measuring the S1 Stream with Dark Matter Detectors text, January 2018

Identification of RR Lyrae stars in multiband, sparsely-sampled data from the Dark Energy Survey using template fitting and Random Forest classification text, January 2019

A Comprehensive Maximum Likelihood Analysis of the Structural Properties of Faint Milky Way Satellites
journal, September 2008

Stellar Kinematics and Metallicities in the Ultra-Faint Dwarf Galaxy Reticulum ii
journal, July 2015

Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data
journal, February 2016

SExtractor: Software for source extraction
journal, June 1996

The acs Survey of Galactic Globular Clusters. ix. Horizontal Branch Morphology and the Second Parameter Phenomenon
journal, December 2009

Kim 3: an Ultra-Faint star Cluster in the Constellation of Centaurus
journal, March 2016

The Discovery of an Ultra-Faint star Cluster in the Constellation of ursa Minor
journal, June 2012

The Disruption of the Sagittarius Dwarf Galaxy
journal, October 1995

Discovery of a Faint Outer halo Milky way star Cluster in the Southern sky
journal, April 2015

The Ghost of Sagittarius and Lumps in the Halo of the Milky Way
journal, April 2002

Precession of the Sagittarius stream
journal, November 2013

A new Distant Milky way Globular Cluster in the Pan-Starrs1 3π Survey
journal, April 2014

Eight Ultra-Faint Galaxy Candidates Discovered in year two of the dark Energy Survey
journal, November 2015

The dark Energy Camera
journal, October 2015

A new Milky way halo star Cluster in the Southern Galactic sky
journal, April 2013

`emcee` : The MCMC Hammer
journal, March 2013

A Hero'S Little Horse: Discovery of a Dissolving star Cluster in Pegasus
journal, January 2015

Dynamical analysis of nearby clusters: Automated astrometry from the ground: precision proper motions over a wide field
journal, June 2013

parsec : stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
journal, October 2012

Assessing the Milky way Satellites Associated with the Sagittarius Dwarf Spheroidal Galaxy
journal, July 2010

Sagittarius Tidal Debris 90 Kiloparsecs from the Galactic Center
journal, September 2003

Eight new Milky way Companions Discovered in First-Year dark Energy Survey data
journal, June 2015

The star formation history of the Sagittarius stream
journal, June 2015

A search for stellar tidal debris of defunct dwarf galaxies around globular clusters in the inner Galactic halo
journal, October 2014

A NEW FAINT MILKY WAY SATELLITE DISCOVERED IN THE PAN-STARRS1 3 π SURVEY
journal, March 2015

The Field of Streams: Sagittarius and Its Siblings
journal, April 2006

The Sagittarius Streams in the Southern Galactic Hemisphere
journal, April 2012

Physical properties of star clusters in the outer LMC as observed by the DES
journal, May 2016

Building Up the Globular Cluster System of the Milky Way: The Contribution of the Sagittarius Galaxy
journal, January 2003

A dwarf satellite galaxy in Sagittarius
journal, July 1994

Big Fish, Little Fish: two new Ultra-Faint Satellites of the Milky way
journal, March 2010

The Blanco Cosmology Survey: data Acquisition, Processing, Calibration, Quality Diagnostics, and data Release
journal, September 2012

A Two Micron All Sky Survey View of the Sagittarius Dwarf Galaxy. I. Morphology of the Sagittarius Core and Tidal Arms
journal, December 2003

Metal Abundances in Extremely Distant Galactic Old Open Clusters. I. Berkeley 29 and Saurer 1
journal, October 2004

SAGITTARIUS II, DRACO II AND LAEVENS 3: THREE NEW MILKY WAY SATELLITES DISCOVERED IN THE PAN-STARRS 1 3 π SURVEY
journal, October 2015

Chemical abundances of giant stars in NGC 5053 and NGC 5634, two globular clusters associated with the Sagittarius dwarf spheroidal galaxy?
journal, July 2015

Horologium ii: a Second Ultra-Faint Milky way Satellite in the Horologium Constellation
journal, July 2015

The Observed Properties of Dwarf Galaxies in and Around the Local Group
journal, June 2012

Selecting Sagittarius: Identification and Chemical Characterization of the Sagittarius Stream
journal, June 2015

Magellan/M2fs Spectroscopy of Tucana 2 and grus 1
journal, February 2016

MAGELLAN /M2FS SPECTROSCOPY OF THE RETICULUM 2 DWARF SPHEROIDAL GALAXY
journal, July 2015

Hydra ii: a Faint and Compact Milky way Dwarf Galaxy Found in the Survey of the Magellanic Stellar History
journal, April 2015

The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater
journal, April 2016

On the variation of the initial mass function
journal, April 2001

The Discovery of Two Extremely Low Luminosity Milky Way Globular Clusters
journal, November 2007

The Overdensity in Virgo, Sagittarius Debris, and the Asymmetric Spheroid
journal, October 2007

Tracing Sagittarius Structure with sdss and Segue Imaging and Spectroscopy
journal, July 2009

The Sagittarius Dwarf Galaxy: a Model for Evolution in a Triaxial Milky way halo
journal, April 2010

Beasts of the Southern Wild: Discovery of nine Ultra Faint Satellites in the Vicinity of the Magellanic Clouds
journal, May 2015

Abundances and Kinematics of the Globular Cluster Systems of the Galaxy and of the Sagittarius Dwarf
journal, June 1995

GLOBULAR CLUSTERS IN THE OUTER GALACTIC HALO: NEW HUBBLE SPACE TELESCOPE /ADVANCED CAMERA FOR SURVEYS IMAGING OF SIX GLOBULAR CLUSTERS AND THE GALACTIC GLOBULAR CLUSTER AGE-METALLICITY RELATION
journal, August 2011

Kinematics and Chemistry of Recently Discovered Reticulum 2 and Horologium 1 Dwarf Galaxies
journal, September 2015

The Northern Wraps of the Sagittarius Stream as Traced by red Clump Stars: Distances, Intrinsic Widths, and Stellar Densities
journal, August 2010

A Pan-STARRS1 VIEW OF THE BIFURCATED SAGITTARIUS STREAM
journal, December 2012

Old open clusters in the Sagittarius dwarf spheroidal galaxy tidal stream - kith or kin?
journal, July 2009

Ghostly streams from the formation of the Galaxy’s halo
journal, July 1995

Nine tiny star clusters in Gaia DR1, PS1, and DES
journal, January 2019

Robust velocity dispersion and binary population modelling of the ultrafaint dwarf galaxy Reticulum II
journal, June 2019

The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2
journal, June 2019

How low does it go? Too few Galactic satellites with standard reionization quenching
journal, July 2019

Identification of RR Lyrae Stars in Multiband, Sparsely Sampled Data from the Dark Energy Survey Using Template Fitting and Random Forest Classification
journal, June 2019

Chemical Abundance Analysis of Three α -poor, Metal-poor Stars in the Ultrafaint Dwarf Galaxy Horologium I
journal, January 2018

On the Nature of Ultra-faint Dwarf Galaxy Candidates. II. The Case of Cetus II
journal, April 2018

Stellar Streams Discovered in the Dark Energy Survey
journal, July 2018

Dancing in the Dark: Uncertainty in Ultrafaint Dwarf Galaxy Predictions from Cosmological Simulations
journal, March 2019

Proper Motions of Milky Way Ultra-faint Satellites with Gaia DR2 × DES DR1
journal, April 2019

A Faint Halo Star Cluster Discovered in the Blanco Imaging of the Southern Sky Survey
journal, April 2019

Chemical Abundance Analysis of Tucana III, the Second r -process Enhanced Ultra-faint Dwarf Galaxy
journal, September 2019

The hidden giant: Discovery of an enormous Galactic dwarf satellite in Gaia DR2
text, January 2019

A Dark Matter Hurricane: Measuring the S1 Stream with Dark Matter Detectors
text, January 2018

Identification of RR Lyrae stars in multiband, sparsely-sampled data from the Dark Energy Survey using template fitting and Random Forest classification
text, January 2019