Journal article

RELICS: A Candidate z similar to 10 Galaxy Strongly Lensed into a Spatially Resolved Arc

Brett Salmon, Dan Coe, Larry Bradley, Marusa Bradac, Victoria Strait, Rachel Paterno-Mahler, Kuang-Han Huang, Pascal A Oesch, Adi Zitrin, Ana Acebron, Nathalia Cibirka, Shotaro Kikuchihara, undefined Masamune, Gabriel B Brammer, Keren Sharon, Michele Trenti, Roberto J Avila, Sara Ogaz, Felipe Andrade-Santos, Daniela Carrasco Show all

ASTROPHYSICAL JOURNAL LETTERS | IOP PUBLISHING LTD | Published : 2018

Abstract

The most distant galaxies known are at z ∼ 10-11, observed 400-500 Myr after the Big Bang. The few z ∼ 10-11 candidates discovered to date have been exceptionally small, barely resolved, if at all, by the Hubble Space Telescope. Here we present the discovery of SPT0615-JD1, a fortuitous z ∼ 10 (z phot = ) galaxy candidate stretched into an arc over ∼2.″5 by the effects of strong gravitational lensing. Discovered in the Reionization Lensing Cluster Survey (RELICS) Hubble Treasury program and companion S-RELICS Spitzer program, this candidate has a lensed H-band magnitude of 24.6 ± 0.1 AB mag. With a magnification of μ ∼ 4-7 estimated from our lens models, the delensed intrinsic magnitude is 2..

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University of Melbourne Researchers

Grants

Awarded by AURA under NASA


Awarded by ACS under NASA


Awarded by U.S. Department of Energy by LLNL



Funding Acknowledgements

This Letter uses observations from NASA/ESA HST. STScI is operated by AURA under NASA contract NAS 5-26555, ACS under NASA contract NAS 5-32864, and Spitzer by JPL. These observations are associated with program GO-14096 and archival data are associated with programs GO-12757 and GO-12477. Some data were obtained from MAST. The RELICS archive at MAST can be obtained at doi: 10.17909/T9SP45. This work was performed under the auspices of the U.S. Department of Energy by LLNL under contract DE-AC52-07NA27344. F.A.-S. acknowledges support from Chandra grant G03-14131X.