Galaxy formation and evolution

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JADES: Using NIRCam Photometry to Investigate the Dependence of Stellar Mass Inferences on the IMF in the Early Universe

(2023)

Authors:

Charity Woodrum, Marcia Rieke, Zhiyuan Ji, William M Baker, Rachana Bhatawdekar, Andrew J Bunker, Stéphane Charlot, Emma Curtis-Lake, Daniel J Eisenstein, Kevin Hainline, Ryan Hausen, Jakob M Helton, Raphael E Hviding, Benjamin D Johnson, Brant Robertson, Fengwu Sun, Sandro Tacchella, Lily Whitler, Christina C Williams, Christopher NA Willmer
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MIGHTEE: multi-wavelength counterparts in the COSMOS field

(2023)

Authors:

IH Whittam, M Prescott, CL Hale, MJ Jarvis, I Heywood, Fangxia An, M Glowacki, N Maddox, L Marchetti, LK Morabito, NJ Adams, RAA Bowler, PW Hatfield, RG Varadaraj, J Collier, B Frank, AR Taylor, MG Santos, M Vaccari, J Afonso, Y Ao, J Delhaize, K Knowles, S Kolwa, SM Randriamampandry, Z Randriamanakoto, O Smirnov, DJB Smith, SV White
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Optimal Inflationary Potentials

(2023)

Authors:

Tomás Sousa, Deaglan J Bartlett, Harry Desmond, Pedro G Ferreira
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On the Origin of the Variety of Velocity Dispersion Profiles of Galaxies

(2023)

Authors:

San Han, Sukyoung K Yi, Sree Oh, Mina Pak, Scott M Croom, Julien Devriendt, Yohan Dubois, Taysun Kimm, Katarina Kraljic, Christophe Pichon, Marta Volonteri
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MaNGA DynPop – III. Stellar dynamics vs. stellar population relations in 6000 early-type and spiral galaxies: fundamental plane, mass-to-light ratios, total density slopes, and dark matter fractions

Monthly Notices of the Royal Astronomical Society Oxford University Press 527:1 (2023) 706-730

Authors:

Kai Zhu, Shengdong Lu, Michele Cappellari, Ran Li, Shude Mao, Liang Gao, Junqiang Ge

Abstract:

We present dynamical scaling relations, combined with the stellar population properties, for a subsample of about 6000 nearby galaxies with the most reliable dynamical models extracted from the full Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) sample of 10 000 galaxies. We show that the inclination-corrected mass plane for both early-type galaxies (ETGs) and late-type galaxies (LTGs), which links dynamical mass, projected half-light radius Re, and the second stellar velocity moment σe within Re, satisfies the virial theorem and is even tighter than the uncorrected one. We find a clear parabolic relation between lg(M/L)e, the total mass-to-light ratio (M/L) within a sphere of radius Re, and lg σe, with the M/L increasing with σe and for older stellar populations. However, the relation for ETGs is linear and the one for the youngest galaxies is constant. We confirm and improve the relation between mass-weighted total density slopes γT and σe: γT become steeper with increasing σe until lg(σe/km s−1) ≈ 2.2 and then remain constant around γT ≈ 2.2. The γT –σe variation is larger for LTGs than ETGs. At fixed σe the total density profiles steepen with galaxy age and for ETGs. We find generally low dark matter fractions, median fDM(
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