Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey

Banda-Huarca, M. V.; Camargo, J. I.  B.; Desmars, J.; Ogando, R. L.  C.; Vieira-Martins, R.; Assafin, M.; Costa, L. N.  da; Bernstein, G. M.; Carrasco Kind, M.; Drlica-Wagner, A.; Gomes, R.; Gysi, M. M.; Braga-Ribas, F.; Maia, M. A.  G.; Gerdes, D. W.; Hamilton, S.; Wester, W.; Abbott, T. M.  C.; Abdalla, F. B.; Allam, S.; Avila, S.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carnero Rosell, A.; Carretero, J.; Cunha, C. E.; Davis, C.; Vicente, J. De; Diehl, H. T.; Doel, P.; Fosalba, P.; Frieman, J.; García-Bellido, J.; Gaztanaga, E.; Gruen, D.; Gruendl, R. A.; Gschwend, J.; Gutierrez, G.; Hartley, W. G.; Hollowood, D. L.; Honscheid, K.; James, D. J.; Kuehn, K.; Kuropatkin, N.; Menanteau, F.; Miller, C. J.; Miquel, R.; Plazas, A. A.; Romer, A. K.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Serrano, S.; Sevilla-Noarbe, I.; Smith, M.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Swanson, M. E.  C.; Tarle, G.

doi:10.3847/1538-3881/aafb37

Title: Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey

Abstract

Transneptunian objects (TNOs) are a source of invaluable information to access the history and evolution of the outer solar system. However, observing these faint objects is a difficult task. As a consequence, important properties such as size and albedo are known for only a small fraction of them. Now, with the results from deep sky surveys and the Gaia space mission, a new exciting era is within reach as accurate predictions of stellar occultations by numerous distant small solar system bodies become available. From them, diameters with kilometer accuracies can be determined. Albedos, in turn, can be obtained from diameters and absolute magnitudes. We use observations from the Dark Energy Survey (DES) from November 2012 until February 2016, amounting to 4292847 CCD frames. We searched them for all known small solar system bodies and recovered a total of 202 TNOs and Centaurs, 63 of which have been discovered by the DES collaboration until the date of this writing. Their positions were determined using the Gaia Data Release 2 as reference and their orbits were refined. Stellar occultations were then predicted using these refined orbits plus stellar positions from Gaia. These predictions are maintained, and updated, in a dedicated web service.more »« less

Authors:

;

; Costa, L. N. da;

;

; Gysi, M. M.;

;

; Wester, W.; Abbott, T. M. C.;

;

Publication Date:: Fri Feb 15 00:00:00 EST 2019

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)

Contributing Org.:: DES Collaboration

OSTI Identifier:: 1508031

Alternate Identifier(s):: OSTI ID: 1502987; OSTI ID: 1503975; OSTI ID: 1728571

Report Number(s):: arXiv:1811.10724; FERMILAB-PUB-18-494
Journal ID: ISSN 1538-3881; 1725803

Grant/Contract Number:: AC02-07CH11359; SC0019193; AC02-76SF00515; AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: The Astronomical Journal (Online)

Additional Journal Information:: Journal Name: The Astronomical Journal (Online); Journal Volume: 157; Journal Issue: 3; Journal ID: ISSN 1538-3881

Publisher:: IOP Publishing - AAAS

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; astrometry; ephemerides; Kuiper belt: general; occultations; surveys

Citation Formats


                    Banda-Huarca, M. V., Camargo, J. I.  B., Desmars, J., Ogando, R. L.  C., Vieira-Martins, R., Assafin, M., Costa, L. N.  da, Bernstein, G. M., Carrasco Kind, M., Drlica-Wagner, A., Gomes, R., Gysi, M. M., Braga-Ribas, F., Maia, M. A.  G., Gerdes, D. W., Hamilton, S., Wester, W., Abbott, T. M.  C., Abdalla, F. B., Allam, S., Avila, S., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carretero, J., Cunha, C. E., Davis, C., Vicente, J. De, Diehl, H. T., Doel, P., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Kuropatkin, N., Menanteau, F., Miller, C. J., Miquel, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E.  C., and Tarle, G. Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey.  United States: N. p., 2019. 
Web.  doi:10.3847/1538-3881/aafb37.

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                    Banda-Huarca, M. V., Camargo, J. I.  B., Desmars, J., Ogando, R. L.  C., Vieira-Martins, R., Assafin, M., Costa, L. N.  da, Bernstein, G. M., Carrasco Kind, M., Drlica-Wagner, A., Gomes, R., Gysi, M. M., Braga-Ribas, F., Maia, M. A.  G., Gerdes, D. W., Hamilton, S., Wester, W., Abbott, T. M.  C., Abdalla, F. B., Allam, S., Avila, S., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carretero, J., Cunha, C. E., Davis, C., Vicente, J. De, Diehl, H. T., Doel, P., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Kuropatkin, N., Menanteau, F., Miller, C. J., Miquel, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E.  C., & Tarle, G. Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey.  United States.  https://doi.org/10.3847/1538-3881/aafb37

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                    Banda-Huarca, M. V., Camargo, J. I.  B., Desmars, J., Ogando, R. L.  C., Vieira-Martins, R., Assafin, M., Costa, L. N.  da, Bernstein, G. M., Carrasco Kind, M., Drlica-Wagner, A., Gomes, R., Gysi, M. M., Braga-Ribas, F., Maia, M. A.  G., Gerdes, D. W., Hamilton, S., Wester, W., Abbott, T. M.  C., Abdalla, F. B., Allam, S., Avila, S., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carretero, J., Cunha, C. E., Davis, C., Vicente, J. De, Diehl, H. T., Doel, P., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Kuropatkin, N., Menanteau, F., Miller, C. J., Miquel, R., Plazas, A. A., Romer, A. K., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E.  C., and Tarle, G. Fri .  
"Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey".  United States.  https://doi.org/10.3847/1538-3881/aafb37.  https://www.osti.gov/servlets/purl/1508031.

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@article{osti_1508031,

  title        = {Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey},

  author       = {Banda-Huarca, M. V. and Camargo, J. I.  B. and Desmars, J. and Ogando, R. L.  C. and Vieira-Martins, R. and Assafin, M. and Costa, L. N.  da and Bernstein, G. M. and Carrasco Kind, M. and Drlica-Wagner, A. and Gomes, R. and Gysi, M. M. and Braga-Ribas, F. and Maia, M. A.  G. and Gerdes, D. W. and Hamilton, S. and Wester, W. and Abbott, T. M.  C. and Abdalla, F. B. and Allam, S. and Avila, S. and Bertin, E. and Brooks, D. and Buckley-Geer, E. and Burke, D. L. and Carnero Rosell, A. and Carretero, J. and Cunha, C. E. and Davis, C. and Vicente, J. De and Diehl, H. T. and Doel, P. and Fosalba, P. and Frieman, J. and García-Bellido, J. and Gaztanaga, E. and Gruen, D. and Gruendl, R. A. and Gschwend, J. and Gutierrez, G. and Hartley, W. G. and Hollowood, D. L. and Honscheid, K. and James, D. J. and Kuehn, K. and Kuropatkin, N. and Menanteau, F. and Miller, C. J. and Miquel, R. and Plazas, A. A. and Romer, A. K. and Sanchez, E. and Scarpine, V. and Schubnell, M. and Serrano, S. and Sevilla-Noarbe, I. and Smith, M. and Soares-Santos, M. and Sobreira, F. and Suchyta, E. and Swanson, M. E.  C. and Tarle, G.},

  abstractNote = {Transneptunian objects (TNOs) are a source of invaluable information to access the history and evolution of the outer solar system. However, observing these faint objects is a difficult task. As a consequence, important properties such as size and albedo are known for only a small fraction of them. Now, with the results from deep sky surveys and the Gaia space mission, a new exciting era is within reach as accurate predictions of stellar occultations by numerous distant small solar system bodies become available. From them, diameters with kilometer accuracies can be determined. Albedos, in turn, can be obtained from diameters and absolute magnitudes. We use observations from the Dark Energy Survey (DES) from November 2012 until February 2016, amounting to 4292847 CCD frames. We searched them for all known small solar system bodies and recovered a total of 202 TNOs and Centaurs, 63 of which have been discovered by the DES collaboration until the date of this writing. Their positions were determined using the Gaia Data Release 2 as reference and their orbits were refined. Stellar occultations were then predicted using these refined orbits plus stellar positions from Gaia. These predictions are maintained, and updated, in a dedicated web service. The techniques developed here are also part of an ambitious preparation to use the data from the Large Synoptic Survey Telescope (LSST), that expects to obtain accurate positions and multifilter photometry for tens of thousands of TNOs.},

  doi          = {10.3847/1538-3881/aafb37},

  journal      = {The Astronomical Journal (Online)},

  number       = 3,

  volume       = 157,

  place        = {United States},

  year         = {Fri Feb 15 00:00:00 EST 2019},

  month        = {Fri Feb 15 00:00:00 EST 2019}

}

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Dynamical Classification of Trans-Neptunian Objects Detected by the Dark Energy Survey

Journal Article Khain, T. ; Becker, J. C. ; Wen, Lin Hsing ; ... - The Astronomical Journal (Online)

The outer solar system contains a large number of small bodies (known as trans-Neptunian objects or TNOs) that exhibit diverse types of dynamical behavior. The classification of bodies in this distant region into dynamical classes—subpopulations that experience similar orbital evolution—aids in our understanding of the structure and formation of the solar system. In this work, we propose an updated dynamical classification scheme for the outer solar system. This approach includes the construction of a new (automated) method for identifying mean motion resonances. We apply this algorithm to the current data set of TNOs observed by the Dark Energy Survey (DES)more »« less
https://doi.org/10.3847/1538-3881/AB7002
Search for Small Trans-Neptunian Objects by the TAOS Project

Conference Chen, Wen-Ping ; Alcock, C ; Axelrod, T ; ... - Submitted to IAU Symp.

The Taiwan-America Occultation Survey (TAOS) aims to determine the number of small icy bodies in the outer reach of the Solar System by means of stellar occultation. An array of 4 robotic small (D=0.5 m), wide-field (f/1.9) telescopes have been installed at Lulin Observatory in Taiwan to simultaneously monitor some thousand of stars for such rare occultation events. Because a typical occultation event by a TNO a few km across will last for only a fraction of a second, fast photometry is necessary. A special CCD readout scheme has been devised to allow for stellar photometry taken a few timesmore »« less
Full Text Available
THE SIZE, SHAPE, ALBEDO, DENSITY, AND ATMOSPHERIC LIMIT OF TRANSNEPTUNIAN OBJECT (50000) QUAOAR FROM MULTI-CHORD STELLAR OCCULTATIONS

Journal Article Braga-Ribas, F. ; Vieira-Martins, R. ; Camargo, J. I. B. ; ... - Astrophysical Journal

We present results derived from the first multi-chord stellar occultations by the transneptunian object (50000) Quaoar, observed on 2011 May 4 and 2012 February 17, and from a single-chord occultation observed on 2012 October 15. If the timing of the five chords obtained in 2011 were correct, then Quaoar would possess topographic features (crater or mountain) that would be too large for a body of this mass. An alternative model consists in applying time shifts to some chords to account for possible timing errors. Satisfactory elliptical fits to the chords are then possible, yielding an equivalent radius R{sub equiv} =more »« less
https://doi.org/10.1088/0004-637X/773/1/26
A CAREFULLY CHARACTERIZED AND TRACKED TRANS-NEPTUNIAN SURVEY: THE SIZE DISTRIBUTION OF THE PLUTINOS AND THE NUMBER OF NEPTUNIAN TROJANS

Journal Article Alexandersen, Mike ; Gladman, Brett ; Kavelaars, J. J. ; ... - The Astronomical Journal (Online)

The trans-Neptunian objects (TNOs) preserve evidence of planet building processes in their orbital and size distributions. While all populations show steep size distributions for large objects, a relative deficit of Neptunian trojans and scattering objects with diameters of D < 100 km has been detected. We investigated this deficit with a 32 square degree survey, in which we detected 77 TNOs that are brighter than a limiting r-band magnitude of 24.6. Our plutino sample (18 objects in 3:2 mean-motion resonance with Neptune) shows a deficit of D < 100 km objects, rejecting a single power-law size distribution at >99% confidence. Combining our survey withmore »« less
https://doi.org/10.3847/0004-6256/152/5/111

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Title: Astrometry and Occultation Predictions to Trans-Neptunian and Centaur Objects Observed within the Dark Energy Survey

Abstract

Citation Formats

A look towards the future in the handling of space science mission geometry journal, January 2018

The Dark Energy Survey: more than dark energy – an overview journal, March 2016

Size and albedo of Kuiper belt object 55636 from a stellar occultation journal, June 2010

The origin of TNO 2004 XR190 as a primordial scattered object journal, October 2011

The International Celestial Reference Frame as Realized by Very Long Baseline Interferometry journal, July 1998

The VIMOS VLT deep survey: First epoch VVDS-deep survey: 11 564 spectra with 17.5 journal, August 2005

A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation journal, October 2011

Gaia Data Release 2 : Summary of the contents and survey properties journal, August 2018

Ancillary data services of NASA's Navigation and Ancillary Information Facility journal, January 1996

A ring system detected around the Centaur (10199) Chariklo journal, March 2014

Results of two multichord stellar occultations by dwarf planet (1) Ceres journal, June 2015

Gaia Data Release 2 : The astrometric solution journal, August 2018

Orbit determination of trans-Neptunian objects and Centaurs for the prediction of stellar occultations journal, November 2015

Study of the Plutino Object (208996) 2003 AZ 84 from Stellar Occultations: Size, Shape, and Topographic Features journal, June 2017

Dynamical determination of the mass of the Kuiper Belt from motions of the inner planets of the Solar system: Dynamical determination of Kuiper Belt mass journal, February 2007

Precise predictions of stellar occultations by Pluto, Charon, Nix, and Hydra for 2008–2015 journal, June 2010

The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from Multi-Chord Stellar Occultations journal, July 2013

The astrometric Gaia -FUN-SSO observation campaign of 99942 Apophis journal, October 2015

Rio survey of optical astrometric positions for 300 ICRF2 sources and the current optical/radio frame link status before Gaia★ journal, March 2013

The dark Energy Camera journal, October 2015

A Decam Search for an Optical Counterpart to the ligo Gravitational-Wave Event Gw151226 journal, July 2016

Gaia Data Release 1 : Astrometry: one billion positions, two million proper motions and parallaxes journal, November 2016

The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation journal, October 2017

New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations journal, July 2016

Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation journal, November 2012

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant journal, September 1998

The cosmological constant and dark energy journal, April 2003

Thermal Properties of Centaurs Asbolus and Chiron journal, February 2002

Discovery and Physical Characterization of a Large Scattered Disk Object at 92 au journal, April 2017

Pluto’S Atmosphere from the 2015 june 29 Ground-Based Stellar Occultation at the time of the new Horizons Flyby journal, March 2016

The Dark Energy Survey Image Processing Pipeline journal, May 2018

Astrometric Calibration and Performance of the Dark Energy Camera journal, May 2017

Discovery of a supernova explosion at half the age of the Universe journal, January 1998

The Dark Energy Survey journal, June 2005

Titania's radius and an upper limit on its atmosphere from the September 8, 2001 stellar occultation journal, February 2009

Gaia Data Release 2 : The celestial reference frame ( journal, August 2018

The VIMOS-VLT deep survey: Evolution of the galaxy luminosity function up to journal, August 2005

The Dark Energy Survey conference, January 2006

The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from Multi-Chord Stellar Occultations text, January 2013

Gaia Data Release 2: Processing of the photometric data journal, August 2018

A ring system detected around the Centaur (10199) Chariklo text, January 2014

The Dark Energy Survey conference, May 2012

Gaia Data Release 2. Summary of the contents and survey properties text, January 2018

A ring system detected around the Centaur (10199) Chariklo text, January 2014

The astrometric Gaia-FUN-SSO observation campaign of 99 942 Apophis text, January 2015

The Dark Energy Survey: more than dark energy - an overview text, January 2016

A DECam Search for an Optical Counterpart to the LIGO Gravitational Wave Event GW151226 text, January 2016

New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations text, January 2016

Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes text, January 2016

Discovery and Physical Characterization of a Large Scattered Disk Object at 92 AU text, January 2017

Astrometric calibration and performance of the Dark Energy Camera text, January 2017

The Dark Energy Survey Image Processing Pipeline text, January 2018

Thermal Properties of Centaurs Asbolus and Chiron text, January 2001

The Case for a Large-scale Occultation Network journal, June 2019

The Case for a Large-Scale Occultation Network text, January 2019

A look towards the future in the handling of space science mission geometry
journal, January 2018

The Dark Energy Survey: more than dark energy – an overview
journal, March 2016

Size and albedo of Kuiper belt object 55636 from a stellar occultation
journal, June 2010

The origin of TNO 2004 XR190 as a primordial scattered object
journal, October 2011

The International Celestial Reference Frame as Realized by Very Long Baseline Interferometry
journal, July 1998

The VIMOS VLT deep survey: First epoch VVDS-deep survey: 11 564 spectra with 17.5
journal, August 2005

A Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
journal, October 2011

Gaia Data Release 2 : Summary of the contents and survey properties
journal, August 2018

Ancillary data services of NASA's Navigation and Ancillary Information Facility
journal, January 1996

A ring system detected around the Centaur (10199) Chariklo
journal, March 2014

Results of two multichord stellar occultations by dwarf planet (1) Ceres
journal, June 2015

Gaia Data Release 2 : The astrometric solution
journal, August 2018

Orbit determination of trans-Neptunian objects and Centaurs for the prediction of stellar occultations
journal, November 2015

Study of the Plutino Object (208996) 2003 AZ ₈₄ from Stellar Occultations: Size, Shape, and Topographic Features
journal, June 2017

Dynamical determination of the mass of the Kuiper Belt from motions of the inner planets of the Solar system: Dynamical determination of Kuiper Belt mass
journal, February 2007

Precise predictions of stellar occultations by Pluto, Charon, Nix, and Hydra for 2008–2015
journal, June 2010

The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from Multi-Chord Stellar Occultations
journal, July 2013

The astrometric Gaia -FUN-SSO observation campaign of 99942 Apophis
journal, October 2015

Rio survey of optical astrometric positions for 300 ICRF2 sources and the current optical/radio frame link status before Gaia★
journal, March 2013

The dark Energy Camera
journal, October 2015

A Decam Search for an Optical Counterpart to the ligo Gravitational-Wave Event Gw151226
journal, July 2016

Gaia Data Release 1 : Astrometry: one billion positions, two million proper motions and parallaxes
journal, November 2016

The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation
journal, October 2017

New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations
journal, July 2016

Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation
journal, November 2012

Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
journal, September 1998

The cosmological constant and dark energy
journal, April 2003

Thermal Properties of Centaurs Asbolus and Chiron
journal, February 2002

Discovery and Physical Characterization of a Large Scattered Disk Object at 92 au
journal, April 2017

Pluto’S Atmosphere from the 2015 june 29 Ground-Based Stellar Occultation at the time of the new Horizons Flyby
journal, March 2016

The Dark Energy Survey Image Processing Pipeline
journal, May 2018

Astrometric Calibration and Performance of the Dark Energy Camera
journal, May 2017

Discovery of a supernova explosion at half the age of the Universe
journal, January 1998

The Dark Energy Survey
journal, June 2005

Titania's radius and an upper limit on its atmosphere from the September 8, 2001 stellar occultation
journal, February 2009

Gaia Data Release 2 : The celestial reference frame (
journal, August 2018

The VIMOS-VLT deep survey: Evolution of the galaxy luminosity function up to
journal, August 2005

The Dark Energy Survey
conference, January 2006

The Size, Shape, Albedo, Density, and Atmospheric Limit of Transneptunian Object (50000) Quaoar from Multi-Chord Stellar Occultations
text, January 2013

Gaia Data Release 2: Processing of the photometric data
journal, August 2018

A ring system detected around the Centaur (10199) Chariklo
text, January 2014

The Dark Energy Survey
conference, May 2012

Gaia Data Release 2. Summary of the contents and survey properties
text, January 2018

A ring system detected around the Centaur (10199) Chariklo
text, January 2014

The astrometric Gaia-FUN-SSO observation campaign of 99 942 Apophis
text, January 2015

The Dark Energy Survey: more than dark energy - an overview
text, January 2016

A DECam Search for an Optical Counterpart to the LIGO Gravitational Wave Event GW151226
text, January 2016

New orbits of irregular satellites designed for the predictions of stellar occultations up to 2020, based on thousands of new observations
text, January 2016

Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes
text, January 2016

Discovery and Physical Characterization of a Large Scattered Disk Object at 92 AU
text, January 2017

Astrometric calibration and performance of the Dark Energy Camera
text, January 2017

The Dark Energy Survey Image Processing Pipeline
text, January 2018

Thermal Properties of Centaurs Asbolus and Chiron
text, January 2001

The Case for a Large-scale Occultation Network
journal, June 2019

The Case for a Large-Scale Occultation Network
text, January 2019