SIMBAD references

2022ApJ...932...77S - Astrophys. J., 932, 77-77 (2022/June-3)

ALMA Lensing Cluster Survey: ALMA-Herschel Joint Study of Lensed Dusty Star-forming Galaxies across z ≃ 0.5 - 6.

SUN F., EGAMI E., FUJIMOTO S., RAWLE T., BAUER F.E., KOHNO K., SMAIL I., PEREZ-GONZALEZ P.G., AO Y., CHAPMAN S.C., COMBES F., DESSAUGES-ZAVADSKY M., ESPADA D., GONZALEZ-LOPEZ J., KOEKEMOER A.M., KOKOREV V., LEE M.M., MOROKUMA-MATSUI K., MUNOZ ARANCIBIA A.M., OGURI M., PELLO R., UEDA Y., UEMATSU R., VALENTINO F., VAN DER WERF P., WALTH G.L., ZEMCOV M. and ZITRIN A.

Abstract (from CDS):

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 (f1150 ∼ 0.1 mJy). With a median lensing magnification factor of \mu ={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 LIR < 1012L galaxies within our sample at z ≃ 0 - 2. At LIR > 1012L, 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.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): High-redshift galaxies - Luminous infrared galaxies - Gravitational lensing - Ultraluminous infrared galaxies - Galaxy evolution

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 41

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