TY - JOUR
T1 - ALMA Lensing Cluster Survey
T2 - ALMA-Herschel Joint Study of Lensed Dusty Star-forming Galaxies across z ≃ 0.5 - 6
AU - Sun, Fengwu
AU - Egami, Eiichi
AU - Fujimoto, Seiji
AU - Rawle, Timothy
AU - Bauer, Franz E.
AU - Kohno, Kotaro
AU - Smail, Ian
AU - Pérez-González, Pablo G.
AU - Ao, Yiping
AU - Chapman, Scott C.
AU - Combes, Francoise
AU - Dessauges-Zavadsky, Miroslava
AU - Espada, Daniel
AU - González-López, Jorge
AU - Koekemoer, Anton M.
AU - Kokorev, Vasily
AU - Lee, Minju M.
AU - Morokuma-Matsui, Kana
AU - Muñoz Arancibia, Alejandra M.
AU - Oguri, Masamune
AU - Pelló, Roser
AU - Ueda, Yoshihiro
AU - Uematsu, Ryosuke
AU - Valentino, Francesco
AU - Van Der Werf, Paul
AU - Walth, Gregory L.
AU - Zemcov, Michael
AU - Zitrin, Adi
N1 - Funding Information:
We thank the anonymous referee for helpful comments. F.S. acknowledges support from the NRAO Student Observing Support (SOS) award SOSPA7-022. F.S. and E.E. acknowledge funding from JWST/NIRCam contract to the University of Arizona, NAS5-02105. K.K. acknowledges support from JSPS KAKENHI grant No. JP17H06130 and the NAOJ ALMA Scientific Research grant No. 2017-06B. I.R.S. acknowledges support from STFC (ST/T000244/1). P.G.P.-G. acknowledges support from Spanish Government grant PGC2018-093499-B-I00. M.O. acknowledges support from JSPS KAKENHI grant Nos. JP18K03693, JP20H00181, JP20H05856, and JP22H01260. A.Z. acknowledges support from the Ministry of Science and Technology, Israel. We thank Ugnė Dudzevičiūtė for sharing the composite SEDs of AS2UDS SMGs. We thank Claudia Lagos for helpful discussion.
Funding Information:
This paper makes use of the following ALMA data: ADS/JAO.ALMA#2018.1.00035.L, 2013.1.00999.S and 2015.1.01425S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This work is based on observations made with Herschel. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA. This work is based (in part) on observations made with the Spitzer Space Telescope, which was operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. This research is based on observations made with the NASA/ESA Hubble Space Telescope obtained from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 526555. Some of the data presented in this paper were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute. The specific observations analyzed can be accessed via Frontier Fields, 40
Publisher Copyright:
© 2022. The Author(s). Published by the American Astronomical Society.
PY - 2022/6/1
Y1 - 2022/6/1
N2 - We present an ALMA-Herschel joint analysis of sources detected by the ALMA Lensing Cluster Survey (ALCS) at 1.15 mm. Herschel/PACS and SPIRE data at 100-500 μm are deblended for 180 ALMA sources in 33 lensing cluster fields that are detected either securely (141 sources; in our main sample) or tentatively at S/N ≥ 4 with cross-matched HST/Spitzer counterparts, down to a delensed 1.15 mm flux density of ∼0.02 mJy. We performed far-infrared spectral energy distribution modeling and derived the physical properties of dusty star formation for 125 sources (109 independently) that are detected at >2σ in at least one Herschel band. A total of 27 secure ALCS sources are not detected in any Herschel bands, including 17 optical/near-IR-dark sources that likely reside at z = 4.2 ± 1.2. The 16th, 50th, and 84th percentiles of the redshift distribution are 1.15, 2.08, and 3.59, respectively, for ALCS sources in the main sample, suggesting an increasing fraction of z ≃ 1 - 2 galaxies among fainter millimeter sources (f 1150 ∼0.1 mJy). With a median lensing magnification factor of μ=2.6-0.8+2.6, ALCS sources in the main sample exhibit a median intrinsic star formation rate of 94-54+84 M ⊙ yr-1, lower than that of conventional submillimeter galaxies at similar redshifts by a factor of ∼3. Our study suggests weak or no redshift evolution of dust temperature with L IR < 1012 L ⊙ galaxies within our sample at z ≃ 0 - 2. At L IR > 1012 L ⊙, the dust temperatures show no evolution across z ≃ 1-4 while being lower than those in the local universe. For the highest-redshift source in our sample (z = 6.07), we can rule out an extreme dust temperature (>80 K) that was reported for MACS0416 Y1 at z = 8.31.
AB - We present an ALMA-Herschel joint analysis of sources detected by the ALMA Lensing Cluster Survey (ALCS) at 1.15 mm. Herschel/PACS and SPIRE data at 100-500 μm are deblended for 180 ALMA sources in 33 lensing cluster fields that are detected either securely (141 sources; in our main sample) or tentatively at S/N ≥ 4 with cross-matched HST/Spitzer counterparts, down to a delensed 1.15 mm flux density of ∼0.02 mJy. We performed far-infrared spectral energy distribution modeling and derived the physical properties of dusty star formation for 125 sources (109 independently) that are detected at >2σ in at least one Herschel band. A total of 27 secure ALCS sources are not detected in any Herschel bands, including 17 optical/near-IR-dark sources that likely reside at z = 4.2 ± 1.2. The 16th, 50th, and 84th percentiles of the redshift distribution are 1.15, 2.08, and 3.59, respectively, for ALCS sources in the main sample, suggesting an increasing fraction of z ≃ 1 - 2 galaxies among fainter millimeter sources (f 1150 ∼0.1 mJy). With a median lensing magnification factor of μ=2.6-0.8+2.6, ALCS sources in the main sample exhibit a median intrinsic star formation rate of 94-54+84 M ⊙ yr-1, lower than that of conventional submillimeter galaxies at similar redshifts by a factor of ∼3. Our study suggests weak or no redshift evolution of dust temperature with L IR < 1012 L ⊙ galaxies within our sample at z ≃ 0 - 2. At L IR > 1012 L ⊙, the dust temperatures show no evolution across z ≃ 1-4 while being lower than those in the local universe. For the highest-redshift source in our sample (z = 6.07), we can rule out an extreme dust temperature (>80 K) that was reported for MACS0416 Y1 at z = 8.31.
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U2 - 10.3847/1538-4357/ac6e3f
DO - 10.3847/1538-4357/ac6e3f
M3 - Article
AN - SCOPUS:85133509595
SN - 0004-637X
VL - 932
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 77
ER -