Abstract
Large surveys of galaxy clusters with the Hubble Space Telescope (HST) and Spitzer, including the Cluster Lensing And Supernova survey with Hubble and the Frontier Fields, have demonstrated the power of strong gravitational lensing to efficiently deliver large samples of high-redshift galaxies. We extend this strategy through a wider, shallower survey named RELICS, the Reionization Lensing Cluster Survey, described here. Our 188-orbit Hubble Treasury Program observed 41 clusters at 0.182 ≤ z ≤ 0.972 with Advanced Camera for Surveys (ACS) and WFC3/IR imaging spanning 0.4-1.7 μm. We selected 21 of the most massive clusters known based on Planck PSZ2 estimates and 20 additional clusters based on observed or inferred lensing strength. RELICS observed 46 WFC3/IR pointings (∼200 arcmin2) each with two orbits divided among four filters (F105W, F125W, F140W, and F160W) and ACS imaging as needed to achieve single-orbit depth in each of three filters (F435W, F606W, and F814W). As previously reported by Salmon et al., we discovered over 300 z ∼ 6-10 candidates, including the brightest z ∼ 6 candidates known, and the most distant spatially resolved lensed arc known at z ∼ 10. Spitzer IRAC imaging (945 hr awarded, plus 100 archival, spanning 3.0-5.0 μm) has crucially enabled us to distinguish z ∼ 10 candidates from z ∼ 2 interlopers. For each cluster, two HST observing epochs were staggered by about a month, enabling us to discover 11 supernovae, including 3 lensed supernovae, which we followed up with 20 orbits from our program. Reduced HST images, catalogs, and lens models are available on MAST, and reduced Spitzer images are available on IRSA.
| Original language | English (US) |
|---|---|
| Article number | 85 |
| Journal | Astrophysical Journal |
| Volume | 884 |
| Issue number | 1 |
| DOIs | |
| State | Published - Oct 10 2019 |
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Keywords
- dark ages, reionization, first stars
- dark matter
- galaxies: clusters: general
- galaxies: high-redshift
- gravitational lensing: strong
- supernovae: general
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
Cite this
RELICS : Reionization Lensing Cluster Survey. / Coe, Dan; Salmon, Brett; Bradač, Maruša; Bradley, Larry D.; Sharon, Keren; Zitrin, Adi; Acebron, Ana; Cerny, Catherine; Cibirka, Nathália; Strait, Victoria; Paterno-Mahler, Rachel; Mahler, Guillaume; Avila, Roberto J.; Ogaz, Sara; Huang, Kuang Han; Pelliccia, Debora; Stark, Daniel P.; Mainali, Ramesh; Oesch, Pascal A.; Trenti, Michele; Carrasco, Daniela; Dawson, William A.; Rodney, Steven A.; Strolger, Louis Gregory; Riess, Adam G.; Jones, Christine; Frye, Brenda L.; Czakon, Nicole G.; Umetsu, Keiichi; Vulcani, Benedetta; Graur, Or; Jha, Saurabh W.; Graham, Melissa L.; Molino, Alberto; Nonino, Mario; Hjorth, Jens; Selsing, Jonatan; Christensen, Lise; Kikuchihara, Shotaro; Ouchi, Masami; Oguri, Masamune; Welch, Brian; Lemaux, Brian C.; Andrade-Santos, Felipe; Hoag, Austin T.; Johnson, Traci L.; Peterson, Avery; Past, Matthew; Fox, Carter; Agulli, Irene; Livermore, Rachael; Ryan, Russell E.; Lam, Daniel; Sendra-Server, Irene; Toft, Sune; Lovisari, Lorenzo; Su, Yuanyuan.
In: Astrophysical Journal, Vol. 884, No. 1, 85, 10.10.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - RELICS
T2 - Reionization Lensing Cluster Survey
AU - Coe, Dan
AU - Salmon, Brett
AU - Bradač, Maruša
AU - Bradley, Larry D.
AU - Sharon, Keren
AU - Zitrin, Adi
AU - Acebron, Ana
AU - Cerny, Catherine
AU - Cibirka, Nathália
AU - Strait, Victoria
AU - Paterno-Mahler, Rachel
AU - Mahler, Guillaume
AU - Avila, Roberto J.
AU - Ogaz, Sara
AU - Huang, Kuang Han
AU - Pelliccia, Debora
AU - Stark, Daniel P.
AU - Mainali, Ramesh
AU - Oesch, Pascal A.
AU - Trenti, Michele
AU - Carrasco, Daniela
AU - Dawson, William A.
AU - Rodney, Steven A.
AU - Strolger, Louis Gregory
AU - Riess, Adam G.
AU - Jones, Christine
AU - Frye, Brenda L.
AU - Czakon, Nicole G.
AU - Umetsu, Keiichi
AU - Vulcani, Benedetta
AU - Graur, Or
AU - Jha, Saurabh W.
AU - Graham, Melissa L.
AU - Molino, Alberto
AU - Nonino, Mario
AU - Hjorth, Jens
AU - Selsing, Jonatan
AU - Christensen, Lise
AU - Kikuchihara, Shotaro
AU - Ouchi, Masami
AU - Oguri, Masamune
AU - Welch, Brian
AU - Lemaux, Brian C.
AU - Andrade-Santos, Felipe
AU - Hoag, Austin T.
AU - Johnson, Traci L.
AU - Peterson, Avery
AU - Past, Matthew
AU - Fox, Carter
AU - Agulli, Irene
AU - Livermore, Rachael
AU - Ryan, Russell E.
AU - Lam, Daniel
AU - Sendra-Server, Irene
AU - Toft, Sune
AU - Lovisari, Lorenzo
AU - Su, Yuanyuan
PY - 2019/10/10
Y1 - 2019/10/10
N2 - Large surveys of galaxy clusters with the Hubble Space Telescope (HST) and Spitzer, including the Cluster Lensing And Supernova survey with Hubble and the Frontier Fields, have demonstrated the power of strong gravitational lensing to efficiently deliver large samples of high-redshift galaxies. We extend this strategy through a wider, shallower survey named RELICS, the Reionization Lensing Cluster Survey, described here. Our 188-orbit Hubble Treasury Program observed 41 clusters at 0.182 ≤ z ≤ 0.972 with Advanced Camera for Surveys (ACS) and WFC3/IR imaging spanning 0.4-1.7 μm. We selected 21 of the most massive clusters known based on Planck PSZ2 estimates and 20 additional clusters based on observed or inferred lensing strength. RELICS observed 46 WFC3/IR pointings (∼200 arcmin2) each with two orbits divided among four filters (F105W, F125W, F140W, and F160W) and ACS imaging as needed to achieve single-orbit depth in each of three filters (F435W, F606W, and F814W). As previously reported by Salmon et al., we discovered over 300 z ∼ 6-10 candidates, including the brightest z ∼ 6 candidates known, and the most distant spatially resolved lensed arc known at z ∼ 10. Spitzer IRAC imaging (945 hr awarded, plus 100 archival, spanning 3.0-5.0 μm) has crucially enabled us to distinguish z ∼ 10 candidates from z ∼ 2 interlopers. For each cluster, two HST observing epochs were staggered by about a month, enabling us to discover 11 supernovae, including 3 lensed supernovae, which we followed up with 20 orbits from our program. Reduced HST images, catalogs, and lens models are available on MAST, and reduced Spitzer images are available on IRSA.
AB - Large surveys of galaxy clusters with the Hubble Space Telescope (HST) and Spitzer, including the Cluster Lensing And Supernova survey with Hubble and the Frontier Fields, have demonstrated the power of strong gravitational lensing to efficiently deliver large samples of high-redshift galaxies. We extend this strategy through a wider, shallower survey named RELICS, the Reionization Lensing Cluster Survey, described here. Our 188-orbit Hubble Treasury Program observed 41 clusters at 0.182 ≤ z ≤ 0.972 with Advanced Camera for Surveys (ACS) and WFC3/IR imaging spanning 0.4-1.7 μm. We selected 21 of the most massive clusters known based on Planck PSZ2 estimates and 20 additional clusters based on observed or inferred lensing strength. RELICS observed 46 WFC3/IR pointings (∼200 arcmin2) each with two orbits divided among four filters (F105W, F125W, F140W, and F160W) and ACS imaging as needed to achieve single-orbit depth in each of three filters (F435W, F606W, and F814W). As previously reported by Salmon et al., we discovered over 300 z ∼ 6-10 candidates, including the brightest z ∼ 6 candidates known, and the most distant spatially resolved lensed arc known at z ∼ 10. Spitzer IRAC imaging (945 hr awarded, plus 100 archival, spanning 3.0-5.0 μm) has crucially enabled us to distinguish z ∼ 10 candidates from z ∼ 2 interlopers. For each cluster, two HST observing epochs were staggered by about a month, enabling us to discover 11 supernovae, including 3 lensed supernovae, which we followed up with 20 orbits from our program. Reduced HST images, catalogs, and lens models are available on MAST, and reduced Spitzer images are available on IRSA.
KW - dark ages, reionization, first stars
KW - dark matter
KW - galaxies: clusters: general
KW - galaxies: high-redshift
KW - gravitational lensing: strong
KW - supernovae: general
UR - http://www.scopus.com/inward/record.url?scp=85073834752&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073834752&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ab412b
DO - 10.3847/1538-4357/ab412b
M3 - Article
AN - SCOPUS:85073834752
VL - 884
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1
M1 - 85
ER -