Evidence of Extended Dust and Feedback around z$\approx$1 Quiescent Galaxies via Millimeter Observations ...

• Main Authors: Meinke, Jeremy, Cohen, Seth, Moore, Jenna, Böckmann, Kathrin, Mauskopf, Philip, Scannapieco, Evan
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: arXiv 2023
• Subjects: Astrophysics of Galaxies astro-ph.GA; Cosmology and Nongalactic Astrophysics astro-ph.CO; FOS Physical sciences; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.2306.04760; https://arxiv.org/abs/2306.04760

We use public data from the South Pole Telescope (SPT) and Atacama Cosmology Telescope (ACT) to measure radial profiles of the thermal Sunyaev-Zel'dovich (tSZ) effect and dust emission around massive quiescent galaxies at $z\approx1.$ Using survey data from the Dark Energy Survey (DES) and Wide-Field infrared Survey Explorer (WISE), we selected $387,627$ quiescent galaxies within the ACT field, with a mean stellar $\log_{10}(M_{\star}/\rm{M_{\odot}})$ of $11.40$. A subset of $94,452$ galaxies, with a mean stellar $\log_{10}(M_{\star}/\rm{M_{\odot}})$ of $11.36,$ are also covered by SPT. In $0.5$ arcminute radial bins around these galaxies, we detect the tSZ profile at levels up to $11σ$, and dust profile up to $20σ.$ Both profiles are extended, and the dust profile slope at large radii is consistent with galaxy clustering. We analyze the thermal energy and dust mass versus stellar mass via integration within $R=2.0$ arcminute circular apertures and fit them with a forward-modeled power-law to correct for our ... : 23 pages, 12 figures, accepted for publication in ApJ ...