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Identification and Quenching of Nugget Galaxies in the RESOLVE Survey at z = 0 by Carr, Derrick S.; Kannappan, Sheila J.; Norris, Mark A.; Sinha, Manodeep; Palumbo, Michael L.; Eckert, Kathleen D.; Moffett, Amanda J.; Polimera, Mugdha S.; Bernstein, Joel I.; Hutchens, Zackary L. is a scholarly article available to read on EtoBox.

What is Identification and Quenching of Nugget Galaxies in the RESOLVE Survey at z = 0 about?

We present a complete census of candidate nuggets, i.e., dense galaxies likely formed by compaction with intense gas influx, within the volume-limited $z \sim 0$ REsolved Spectroscopy Of a Local VolumE (RESOLVE) survey. These nuggets span all evolutionary stages and 3 orders of magnitude in stellar mass ($M_{*} \sim 10^{8} M_\odot$ to $10^{11} M_\odot$) from the dwarf to the giant regime. We develop selection criteria for our $z\sim0$ nugget candidates based on structure and introduce the use of environmental criteria to eliminate nugget-like objects with suspected non-compaction origins. The resulting $z\sim0$ nuggets follow expectations with respect to structure (i.e., density, size), population frequency, and likely origins. We show that the properties of our nugget census are consistent with permanent quenching above the gas-richness threshold scale (halo mass $M_{halo} \sim 10^{11.4} M_\odot$), cyclic temporary quenching below the threshold scale, and feedback from active galactic nuclei (AGN) assisting in permanent quenching. As predicted in simulations, most nuggets quench within the halo mass range $M_{halo} \sim 10^{11.45} M_\odot$ to $10^{11.9} M_\odot$. We find $\sim 0.2

Author

Carr, Derrick S.; Kannappan, Sheila J.; Norris, Mark A.; Sinha, Manodeep; Palumbo, Michael L.; Eckert, Kathleen D.; Moffett, Amanda J.; Polimera, Mugdha S.; Bernstein, Joel I.; Hutchens, Zackary L.

Published

2024

Language

EN