An ALMA view of 11 Dusty Star Forming Galaxies at the peak of Cosmic Star Formation History
L. Pantoni, M. Massardi, A. Lapi, D. Donevski, Q. D'Amato, M., Giulietti, F. Pozzi, M. Talia, C. Vignali, A. Cimatti, L. Silva, A. Bressan,, T. Ronconi

TL;DR
This study uses ALMA observations to analyze 11 dusty star-forming galaxies at the peak of cosmic star formation, revealing their compactness, gas dynamics, and potential AGN activity, providing insights into galaxy evolution processes.
Contribution
First detailed ALMA-based multi-wavelength analysis of 11 main-sequence DSFGs at z=2-3, linking gas, dust, and stellar components to galaxy evolution.
Findings
Galaxies are very compact in (sub-)millimeter emission
CO lines indicate rotating molecular gas discs
Evidence of AGN feedback and galaxy compaction phases
Abstract
We present the ALMA view of 11 main-sequence DSFGs, (sub-)millimeter selected in the GOODS-S field, and spectroscopically confirmed to be at the peak of Cosmic SFH (z = 2-3). Our study combines the analysis of galaxy SED with ALMA continuum and CO spectral emission, by using ALMA Science Archive products at the highest spatial resolution currently available for our sample (< 1 arcsec). We include galaxy multi-band images and photometry (in the optical, radio and X-rays) to investigate the interlink between dusty, gaseous and stellar components and the eventual presence of AGN. We use multi-band sizes and morphologies to gain an insight on the processes that lead galaxy evolution, e.g. gas condensation, star formation, AGN feedback. The 11 DSFGs are very compact in the (sub-)millimeter (median r(ALMA) = 1.15 kpc), while the optical emission extends tolarger radii (median r(H)/r(ALMA) =…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
