RCS2 J232727.6-020437: An efficient cosmic telescope at Z = 0.6986
Abstract
Here, we present a detailed gravitational lens model of the galaxy cluster RCS2 J232727.6-020437. Due to cosmological dimming of cluster members and ICL, its high redshift (z=0.6986) makes it ideal for studying background galaxies. Using new ACS and WFC3/IR HST data, we identify 16 multiple images. From MOSFIRE follow up, we identify a strong emission line in the spectrum of one multiple image, likely confirming the redshift of that system to z=2.083. With a highly magnified (μ ≳ 2) source plane area of ~ 0.7 arcmin2 at z = 7, RCS2 J232727.6-020437 has a lensing efficiency comparable to the Hubble Frontier Fields clusters. We discover four highly magnified z ~ 7 candidate Lyman-break galaxies behind the cluster, one of which may be multiply-imaged. Correcting for magnification, we find that all four galaxies are fainter than 0.5L*. One candidate is detected at >10σ in both Spitzer/IRAC [3.6] and [4.5] channels. A spectroscopic follow-up with MOSFIRE does not result in the detection of the Lyman-alpha emission line from any of the four candidates. From the MOSFIRE spectra we place median upper limits on the Lyman-alpha flux of 5 – 14 × 10–19 ergs–1cm–2 (5σ).
- Authors:
-
- Univ. of California, Davis, CA (United States)
- Space Telescope Science Institute, Baltimore, MD (United States)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Argelander-Institut fur Astronomie, Bonn (Germany)
- Univ. of California, Santa Barbara, CA (United States)
- MMT Observatory, Tucson, AZ (United States)
- Aix-Marseille Univ., CNRS, LAM, Marseille (France)
- Stanford Univ., Stanford, CA (United States); Univ. of Copenhagen, Copenhagen (Denmark)
- UCLA, Los Angeles, CA (United States)
- Univ. of Arizona, Tucson, AZ (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1263393
- Report Number(s):
- SLAC-PUB-16641
Journal ID: ISSN 1538-4357; arXiv:1503.02670
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 813; Journal Issue: 1; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; .astrophysics; ASTRO; galaxies: clusters: individual (RCS2 J232727.6-020437); galaxies: high-redshift; gravitational lensing: strong
Citation Formats
Hoag, A., Bradac, M., Huang, K. H., Ryan, Jr., R. E., Sharon, K., Schrabback, T., Schmidt, K. B., Cain, B., Gonzalez, A. H., Hildebrandt, H., Hinz, J. L., Lemaux, B. C., Linden, A. von der, Lubin, L. M., Treu, T., and Zaritsky, D. RCS2 J232727.6-020437: An efficient cosmic telescope at Z = 0.6986. United States: N. p., 2015.
Web. doi:10.1088/0004-637X/813/1/37.
Hoag, A., Bradac, M., Huang, K. H., Ryan, Jr., R. E., Sharon, K., Schrabback, T., Schmidt, K. B., Cain, B., Gonzalez, A. H., Hildebrandt, H., Hinz, J. L., Lemaux, B. C., Linden, A. von der, Lubin, L. M., Treu, T., & Zaritsky, D. RCS2 J232727.6-020437: An efficient cosmic telescope at Z = 0.6986. United States. https://doi.org/10.1088/0004-637X/813/1/37
Hoag, A., Bradac, M., Huang, K. H., Ryan, Jr., R. E., Sharon, K., Schrabback, T., Schmidt, K. B., Cain, B., Gonzalez, A. H., Hildebrandt, H., Hinz, J. L., Lemaux, B. C., Linden, A. von der, Lubin, L. M., Treu, T., and Zaritsky, D. Tue .
"RCS2 J232727.6-020437: An efficient cosmic telescope at Z = 0.6986". United States. https://doi.org/10.1088/0004-637X/813/1/37. https://www.osti.gov/servlets/purl/1263393.
@article{osti_1263393,
title = {RCS2 J232727.6-020437: An efficient cosmic telescope at Z = 0.6986},
author = {Hoag, A. and Bradac, M. and Huang, K. H. and Ryan, Jr., R. E. and Sharon, K. and Schrabback, T. and Schmidt, K. B. and Cain, B. and Gonzalez, A. H. and Hildebrandt, H. and Hinz, J. L. and Lemaux, B. C. and Linden, A. von der and Lubin, L. M. and Treu, T. and Zaritsky, D.},
abstractNote = {Here, we present a detailed gravitational lens model of the galaxy cluster RCS2 J232727.6-020437. Due to cosmological dimming of cluster members and ICL, its high redshift (z=0.6986) makes it ideal for studying background galaxies. Using new ACS and WFC3/IR HST data, we identify 16 multiple images. From MOSFIRE follow up, we identify a strong emission line in the spectrum of one multiple image, likely confirming the redshift of that system to z=2.083. With a highly magnified (μ ≳ 2) source plane area of ~ 0.7 arcmin2 at z = 7, RCS2 J232727.6-020437 has a lensing efficiency comparable to the Hubble Frontier Fields clusters. We discover four highly magnified z ~ 7 candidate Lyman-break galaxies behind the cluster, one of which may be multiply-imaged. Correcting for magnification, we find that all four galaxies are fainter than 0.5L*. One candidate is detected at >10σ in both Spitzer/IRAC [3.6] and [4.5] channels. A spectroscopic follow-up with MOSFIRE does not result in the detection of the Lyman-alpha emission line from any of the four candidates. From the MOSFIRE spectra we place median upper limits on the Lyman-alpha flux of 5 – 14 × 10–19 ergs–1cm–2 (5σ).},
doi = {10.1088/0004-637X/813/1/37},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 813,
place = {United States},
year = {Tue Oct 27 00:00:00 EDT 2015},
month = {Tue Oct 27 00:00:00 EDT 2015}
}
Web of Science
Works referenced in this record:
ULTRA-FAINT ULTRAVIOLET GALAXIES AT z ∼ 2 BEHIND THE LENSING CLUSTER A1689: THE LUMINOSITY FUNCTION, DUST EXTINCTION, AND STAR FORMATION RATE DENSITY
journal, December 2013
- Alavi, Anahita; Siana, Brian; Richard, Johan
- The Astrophysical Journal, Vol. 780, Issue 2
Weighing the Giants – III. Methods and measurements of accurate galaxy cluster weak-lensing masses
journal, February 2014
- Applegate, Douglas E.; von der Linden, Anja; Kelly, Patrick L.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1
Measuring and modelling the redshift evolution of clustering: the Hubble Deep Field North
journal, December 1999
- Arnouts, S.; Cristiani, S.; Moscardini, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 310, Issue 2
Stellar Mass‐to‐Light Ratios and the Tully‐Fisher Relation
journal, March 2001
- Bell, Eric F.; de Jong, Roelof S.
- The Astrophysical Journal, Vol. 550, Issue 1
Bayesian Photometric Redshift Estimation
journal, June 2000
- Benitez, Narciso
- The Astrophysical Journal, Vol. 536, Issue 2
On the rapid demise of Ly α emitters at redshift z ≳ 7 due to the increasing incidence of optically thick absorption systems
journal, December 2012
- Bolton, James S.; Haehnelt, Martin G.
- Monthly Notices of the Royal Astronomical Society, Vol. 429, Issue 2
ULTRAVIOLET LUMINOSITY FUNCTIONS FROM 132 z ∼ 7 AND z ∼ 8 LYMAN-BREAK GALAXIES IN THE ULTRA-DEEP HUDF09 AND WIDE-AREA EARLY RELEASE SCIENCE WFC3/IR OBSERVATIONS
journal, August 2011
- Bouwens, R. J.; Illingworth, G. D.; Oesch, P. A.
- The Astrophysical Journal, Vol. 737, Issue 2
LOWER-LUMINOSITY GALAXIES COULD REIONIZE THE UNIVERSE: VERY STEEP FAINT-END SLOPES TO THE UV LUMINOSITY FUNCTIONS AT z ⩾ 5-8 FROM THE HUDF09 WFC3/IR OBSERVATIONS
journal, May 2012
- Bouwens, R. J.; Illingworth, G. D.; Oesch, P. A.
- The Astrophysical Journal, Vol. 752, Issue 1
Strong and weak lensing united: II. The cluster mass distribution of the most X-ray luminous cluster RX J1347.5-1145
journal, June 2005
- Bradač, M.; Erben, T.; Schneider, P.
- Astronomy & Astrophysics, Vol. 437, Issue 1
SPITZER ULTRA FAINT SURVEY PROGRAM (SURFS UP). I. AN OVERVIEW
journal, April 2014
- Bradač, Maruša; Ryan, Russell; Casertano, Stefano
- The Astrophysical Journal, Vol. 785, Issue 2
Dark Matter and Baryons in the X‐Ray Luminous Merging Galaxy Cluster RX J1347.5−1145
journal, July 2008
- Bradač, Maruša; Schrabback, Tim; Erben, Thomas
- The Astrophysical Journal, Vol. 681, Issue 1
FOCUSING COSMIC TELESCOPES: EXPLORING REDSHIFT z ∼ 5-6 GALAXIES WITH THE BULLET CLUSTER 1E0657 – 56
journal, November 2009
- Bradač, Maruša; Treu, Tommaso; Applegate, Douglas
- The Astrophysical Journal, Vol. 706, Issue 2
SPECTROSCOPIC CONFIRMATION OF A z = 6.740 GALAXY BEHIND THE BULLET CLUSTER
journal, July 2012
- Bradač, Maruša; Vanzella, Eros; Hall, Nicholas
- The Astrophysical Journal, Vol. 755, Issue 1
Galaxies in the Hubble Ultra Deep Field. I. Detection, Multiband Photometry, Photometric Redshifts, and Morphology
journal, July 2006
- Coe, Dan; Benítez, Narciso; Sánchez, Sebastián F.
- The Astronomical Journal, Vol. 132, Issue 2
Evolution in the escape fraction of ionizing photons and the decline in strong Lyα emission from z > 6 galaxies
journal, April 2014
- Dijkstra, Mark; Wyithe, Stuart; Haiman, Zoltán
- Monthly Notices of the Royal Astronomical Society, Vol. 440, Issue 4
The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
journal, September 2004
- Fazio, G. G.; Hora, J. L.; Allen, L. E.
- The Astrophysical Journal Supplement Series, Vol. 154, Issue 1
A galaxy rapidly forming stars 700 million years after the Big Bang at redshift 7.51
journal, October 2013
- Finkelstein, S. L.; Papovich, C.; Dickinson, M.
- Nature, Vol. 502, Issue 7472
The Red-Sequence Cluster Survey-2 (Rcs-2): Survey Details and Photometric Catalog Construction
journal, February 2011
- Gilbank, David G.; Gladders, M. D.; Yee, H. K. C.
- The Astronomical Journal, Vol. 141, Issue 3
Sunyaev-Zel'Dovich Effect Observations of Strong Lensing Galaxy Clusters: Probing the Overconcentration Problem
journal, August 2011
- Gralla, Megan B.; Sharon, Keren; Gladders, Michael D.
- The Astrophysical Journal, Vol. 737, Issue 2
USING THE BULLET CLUSTER AS A GRAVITATIONAL TELESCOPE TO STUDY z ≳ 7 LYMAN BREAK GALAXIES
journal, January 2012
- Hall, Nicholas; Bradač, Maruša; Gonzalez, Anthony H.
- The Astrophysical Journal, Vol. 745, Issue 2
Accurate photometric redshifts for the CFHT legacy survey calibrated using the VIMOS VLT deep survey
journal, September 2006
- Ilbert, O.; Arnouts, S.; McCracken, H. J.
- Astronomy & Astrophysics, Vol. 457, Issue 3
A Method for Weak Lensing Observations
journal, August 1995
- Kaiser, Nick; Squires, Gordon; Broadhurst, Tom
- The Astrophysical Journal, Vol. 449
TFIT: A Photometry Package Using Prior Information for Mixed‐Resolution Data Sets
journal, November 2007
- Laidler, Victoria G.; Papovich, Casey; Grogin, Norman A.
- Publications of the Astronomical Society of the Pacific, Vol. 119, Issue 861
Strong lensing by a node of the cosmic web: The core of MACS J0717.5+3745 at
journal, July 2012
- Limousin, M.; Ebeling, H.; Richard, J.
- Astronomy & Astrophysics, Vol. 544
An improved model of charge transfer inefficiency and correction algorithm for the Hubble Space Telescope
journal, February 2014
- Massey, Richard; Schrabback, Tim; Cordes, Oliver
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 1
Design and development of MOSFIRE: the multi-object spectrometer for infrared exploration at the Keck Observatory
conference, July 2010
- McLean, Ian S.; Steidel, Charles C.; Epps, Harland
- SPIE Astronomical Telescopes + Instrumentation, SPIE Proceedings
MOSFIRE, the multi-object spectrometer for infra-red exploration at the Keck Observatory
conference, September 2012
- McLean, Ian S.; Steidel, Charles C.; Epps, Harland W.
- SPIE Astronomical Telescopes + Instrumentation, SPIE Proceedings
THE ATACAMA COSMOLOGY TELESCOPE: PHYSICAL PROPERTIES OF SUNYAEV-ZEL'DOVICH EFFECT CLUSTERS ON THE CELESTIAL EQUATOR ,
journal, February 2013
- Menanteau, Felipe; Sifón, Cristóbal; Barrientos, L. Felipe
- The Astrophysical Journal, Vol. 765, Issue 1
Cluster cross-sections for strong lensing: analytic and numerical lens models
journal, March 2003
- Meneghetti, M.; Bartelmann, M.; Moscardini, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 340, Issue 1
Creation of cosmic structure in the complex galaxy cluster merger Abell 2744: The galaxy cluster merger Abell 2744
journal, September 2011
- Merten, J.; Coe, D.; Dupke, R.
- Monthly Notices of the Royal Astronomical Society, Vol. 417, Issue 1
Can the intergalactic medium cause a rapid drop in Lyα emission at z > 6?
journal, November 2014
- Mesinger, Andrei; Aykutalp, Aycin; Vanzella, Eros
- Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 1
Gas metallicity diagnostics in star-forming galaxies
journal, September 2006
- Nagao, T.; Maiolino, R.; Marconi, A.
- Astronomy & Astrophysics, Vol. 459, Issue 1
STRUCTURE AND MORPHOLOGIES OF z ∼ 7-8 GALAXIES FROM ULTRA-DEEP WFC3/IR IMAGING OF THE HUBBLE ULTRA-DEEP FIELD
journal, December 2009
- Oesch, P. A.; Bouwens, R. J.; Carollo, C. M.
- The Astrophysical Journal, Vol. 709, Issue 1
Absolute Spectral Energy Distributions for White Dwarfs
journal, February 1974
- Oke, J. B.
- The Astrophysical Journal Supplement Series, Vol. 27
Spitzer IRAC Photometry of M, L, and T Dwarfs
journal, November 2006
- Patten, Brian M.; Stauffer, John R.; Burrows, Adam
- The Astrophysical Journal, Vol. 651, Issue 1
NEW OBSERVATIONS OF z ∼ 7 GALAXIES: EVIDENCE FOR A PATCHY REIONIZATION
journal, September 2014
- Pentericci, L.; Vanzella, E.; Fontana, A.
- The Astrophysical Journal, Vol. 793, Issue 2
A Stellar Spectral Flux Library: 1150–25000 Å
journal, July 1998
- Pickles, A. J.
- Publications of the Astronomical Society of the Pacific, Vol. 110, Issue 749
The Cluster Lensing and Supernova Survey with Hubble: an Overview
journal, March 2012
- Postman, Marc; Coe, Dan; Benítez, Narciso
- The Astrophysical Journal Supplement Series, Vol. 199, Issue 2
A STEEP FAINT-END SLOPE OF THE UV LUMINOSITY FUNCTION AT z ∼ 2-3: IMPLICATIONS FOR THE GLOBAL STELLAR MASS DENSITY AND STAR FORMATION IN LOW-MASS HALOS
journal, February 2009
- Reddy, Naveen A.; Steidel, Charles C.
- The Astrophysical Journal, Vol. 692, Issue 1
Mass and magnification maps for the Hubble Space Telescope Frontier Fields clusters: implications for high-redshift studies
journal, August 2014
- Richard, Johan; Jauzac, Mathilde; Limousin, Marceau
- Monthly Notices of the Royal Astronomical Society, Vol. 444, Issue 1
Early star-forming galaxies and the reionization of the Universe
journal, November 2010
- Robertson, Brant E.; Ellis, Richard S.; Dunlop, James S.
- Nature, Vol. 468, Issue 7320
MEASURING THE STELLAR MASSES OF z ∼ 7 GALAXIES WITH THE SPITZER ULTRAFAINT SURVEY PROGRAM (SURFS UP)
journal, April 2014
- Ryan, R. E.; Gonzalez, A. H.; Lemaux, B. C.
- The Astrophysical Journal, Vol. 786, Issue 1
Line-Emitting Galaxies Beyond a Redshift of 7: an Improved Method for Estimating the Evolving Neutrality of the Intergalactic Medium
journal, October 2014
- Schenker, Matthew A.; Ellis, Richard S.; Konidaris, Nick P.
- The Astrophysical Journal, Vol. 795, Issue 1
KECK SPECTROSCOPY OF FAINT 3 < z < 8 LYMAN BREAK GALAXIES: EVIDENCE FOR A DECLINING FRACTION OF EMISSION LINE SOURCES IN THE REDSHIFT RANGE 6 < z < 8
journal, December 2011
- Schenker, Matthew A.; Stark, Daniel P.; Ellis, Richard S.
- The Astrophysical Journal, Vol. 744, Issue 2
THROUGH THE LOOKING GLASS: HST SPECTROSCOPY OF FAINT GALAXIES LENSED BY THE FRONTIER FIELDS CLUSTER MACSJ0717.5+3745
journal, February 2014
- Schmidt, K. B.; Treu, T.; Brammer, G. B.
- The Astrophysical Journal, Vol. 782, Issue 2
Evidence of the accelerated expansion of the Universe from weak lensing tomography with COSMOS
journal, June 2010
- Schrabback, T.; Hartlap, J.; Joachimi, B.
- Astronomy and Astrophysics, Vol. 516
What can we learn from arcs in clusters of galaxies?
journal, August 1990
- Soucail, G.
- Astrophysics and Space Science, Vol. 170, Issue 1-2
The Evolutionary History of Lyman Break Galaxies Between Redshift 4 and 6: Observing Successive Generations of Massive Galaxies in Formation
journal, May 2009
- Stark, Daniel P.; Ellis, Richard S.; Bunker, Andrew
- The Astrophysical Journal, Vol. 697, Issue 2
Keck spectroscopy of faint 3 < z < 7 Lyman break galaxies - I. New constraints on cosmic reionization from the luminosity and redshift-dependent fraction of Lyman α emission: The Lyα emitting fraction at high redshift
journal, September 2010
- Stark, Daniel P.; Ellis, Richard S.; Chiu, Kuenley
- Monthly Notices of the Royal Astronomical Society, Vol. 408, Issue 3
The Brightest of Reionizing Galaxies Survey: Design and Preliminary Results
journal, January 2011
- Trenti, M.; Bradley, L. D.; Stiavelli, M.
- The Astrophysical Journal, Vol. 727, Issue 2
THE CHANGING Lyα OPTICAL DEPTH IN THE RANGE 6 < z < 9 FROM THE MOSFIRE SPECTROSCOPY OF Y -DROPOUTS
journal, September 2013
- Treu, Tommaso; Schmidt, Kasper B.; Trenti, Michele
- The Astrophysical Journal, Vol. 775, Issue 1
INFERENCES ON THE DISTRIBUTION OF Lyα EMISSION OF z ∼ 7 AND z ∼ 8 GALAXIES
journal, February 2012
- Treu, Tommaso; Trenti, Michele; Stiavelli, Massimo
- The Astrophysical Journal, Vol. 747, Issue 1
Optimal mass Configurations for Lensing High-Redshift Galaxies
journal, May 2012
- Wong, Kenneth C.; Ammons, S. Mark; Keeton, Charles R.
- The Astrophysical Journal, Vol. 752, Issue 2
THE LARGEST GRAVITATIONAL LENS: MACS J0717.5+3745 ( z = 0.546)
journal, November 2009
- Zitrin, Adi; Broadhurst, Tom; Rephaeli, Yoel
- The Astrophysical Journal, Vol. 707, Issue 1
Works referencing / citing this record:
The Frontier Fields lens modelling comparison project
journal, August 2017
- Meneghetti, M.; Natarajan, P.; Coe, D.
- Monthly Notices of the Royal Astronomical Society, Vol. 472, Issue 3
RELICS: A Strong Lens Model for SPT-CLJ0615–5746, a z = 0.972 Cluster
journal, August 2018
- Paterno-Mahler, Rachel; Sharon, Keren; Coe, Dan
- The Astrophysical Journal, Vol. 863, Issue 2
Constraining the Neutral Fraction of Hydrogen in the IGM at Redshift 7.5
journal, June 2019
- Hoag, A.; Bradač, M.; Huang, K.
- The Astrophysical Journal, Vol. 878, Issue 1
The Atacama Cosmology Telescope: The Two-season ACTPol Sunyaev–Zel’dovich Effect Selected Cluster Catalog
journal, March 2018
- Hilton, Matt; Hasselfield, Matthew; Sifón, Cristóbal
- The Astrophysical Journal Supplement Series, Vol. 235, Issue 1
The Frontier Fields Lens Modeling Comparison Project
text, January 2016
- Meneghetti, M.; Natarajan, P.; Coe, D.
- arXiv
RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z=0.972 Cluster
text, January 2018
- Paterno-Mahler, Rachel; Sharon, Keren; Coe, Dan
- arXiv
Constraining the neutral fraction of hydrogen in the IGM at redshift 7.5
text, January 2019
- Hoag, Austin; Bradač, Maruša; Huang, Kuang-Han
- arXiv