The Rest-Frame Submillimeter Spectrum of High Redshift, Dusty, Star-Forming Galaxies from the SPT-SZ Survey ...

• Main Authors: Reuter, C., Spilker, J. S., Vieira, J. D., Marrone, D. P., Weiss, A., Aravena, M., Archipley, M. A., Chapman, S. C., Gonzalez, A., Greve, T. R., Hayward, C. C., Hill, R., Jarugula, S., Kim, S., Malkan, M., Phadke, K. A., Stark, A. A., Sulzenauer, N., Vizgan, D.
• Format: Text
• Language: unknown
• Published: arXiv 2022
• Subjects: Astrophysics of Galaxies astro-ph.GA; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.2210.11671; https://arxiv.org/abs/2210.11671

We present the average rest-frame spectrum of the final catalog of dusty star-forming galaxies (DSFGs) selected from the South Pole Telescope SZ survey (SPT-SZ) and measured with Band 3 of the Atacama Large Millimeter/submillimeter Array (ALMA). This work builds on the previous average rest-frame spectrum, given in Spilker et al. (2014) for the first 22 sources, and is comprised of a total of 78 sources, normalized by their respective apparent dust masses. The spectrum spans $1.9$$<$z$<$$6.9$ and covers rest-frame frequencies of 240$-$800 GHz. Combining this data with low-J CO observations from the Australia Telescope Compact Array (ATCA), we detect multiple bright line features from $^{12}$CO, $[$CI$]$, and H$_2$O, as well as fainter molecular transitions from $^{13}$CO, HCN, HCO$^+$, HNC, CN, H$_2$O$^+$, and CH. We use these detections, along with limits from other molecules, to characterize the typical properties of the interstellar medium (ISM) for these high redshift DSFGs. We are able to divide ... : 26 pages, 10 figures, accepted for publication in ApJ ...