Stockmann, Mikkel and Jørgensen, Inger and Toft, Sune and Conselice, Christopher J. and Faisst, Andreas and Margalef-Bentabol, Berta and Gallazzi, Anna and Zibetti, Stefano and Brammer, Gabriel B. and Gómez-Guijarro, Carlos and Hirschmann, Michaela and Lagos, Claudia D. and Valentino, Francesco M. and Zabl, Johannes (2021) The Fundamental Plane of Massive Quiescent Galaxies at z ∼ 2. Astrophysical Journal, 908 (2). Art. No. 135. ISSN 1538-4357. doi:10.3847/1538-4357/abce66. https://resolver.caltech.edu/CaltechAUTHORS:20210222-100902465
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Abstract
We examine the Fundamental Plane (FP) and mass-to-light ratio (M/L) scaling relations using the largest sample of massive quiescent galaxies at 1.5 < z < 2.5 to date. The FP (r_e, σ_e, I_e) is established using 19 UVJ quiescent galaxies from COSMOS with Hubble Space Telescope H F160W rest-frame optical sizes and X-shooter absorption line-measured stellar velocity dispersions. For a very massive, log(M_*/M_⊙), subset of eight quiescent galaxies at z > 2, from Stockmann et al., we show that they cannot passively evolve to the local Coma cluster relation alone and must undergo significant structural evolution to mimic the sizes of local massive galaxies. The evolution of the FP and M/L scaling relations, from z = 2 to present day, for this subset are consistent with passive aging of the stellar population and minor merger structural evolution into the most massive galaxies in the Coma cluster and other massive elliptical galaxies from the MASSIVE Survey. Modeling the luminosity evolution from minor merger-added stellar populations favors a history of merging with "dry" quiescent galaxies.
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| Additional Information: | © 2021. The American Astronomical Society. Received 2019 December 29; revised 2020 November 25; accepted 2020 November 25; published 2021 February 18. M.S., S.T., C.G., and G.B. acknowledge support from the European Research Council (ERC) Consolidator Grant funding scheme (project ConTExt, grant No. 648179). The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant No. 140. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained from the data archive at the Space Telescope Science Institute. STScI is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. Support for this work was provided by NASA through grant No. HST-GO-14721.002 from the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555. M.S. thanks Nina Voit for her encouragement and unparalleled love, help, and support. This research made use of Astropy (version 1.1.1),17 a community-developed core Python package for Astronomy (Astropy Collaboration et al. 2013, 2018). I.J. is supported by the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., on behalf of the international Gemini partnership of Argentina, Brazil, Canada, Chile, the Republic of Korea, and the United States of America. M.H. acknowledges financial support from the Carlsberg Foundation via a Semper Ardens grant (CF15-0384). F.V. acknowledges support from the Carlsberg Foundation research grant CF18-0388 "Galaxies: Rise And Death." | ||||||||||||||||||||||||||||||
| Group: | Infrared Processing and Analysis Center (IPAC) | ||||||||||||||||||||||||||||||
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| Subject Keywords: | Galaxy dynamics ; Galaxy evolution ; Galaxy physics ; Elliptical galaxies ; Giant elliptical galaxies ; Quenched galaxies ; Scaling relations ; Galaxy mergers ; Galaxy quenching ; Hubble Space Telescope ; High resolution spectroscopy | ||||||||||||||||||||||||||||||
| Issue or Number: | 2 | ||||||||||||||||||||||||||||||
| Classification Code: | Unified Astronomy Thesaurus concepts: Galaxy dynamics (591); Galaxy evolution (594); Galaxy physics (612); Elliptical galaxies (456); Giant elliptical galaxies (651); Quenched galaxies (2016); Scaling relations (2031); Galaxy mergers (608); Galaxy quenchi | ||||||||||||||||||||||||||||||
| DOI: | 10.3847/1538-4357/abce66 | ||||||||||||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20210222-100902465 | ||||||||||||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20210222-100902465 | ||||||||||||||||||||||||||||||
| Official Citation: | Mikkel Stockmann et al 2021 ApJ 908 135 | ||||||||||||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||||||||||||
| ID Code: | 108133 | ||||||||||||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||||||||||||
| Deposited By: | George Porter | ||||||||||||||||||||||||||||||
| Deposited On: | 22 Feb 2021 23:43 | ||||||||||||||||||||||||||||||
| Last Modified: | 16 Nov 2021 19:09 |
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