A Universal Fundamental Plane and the Mdyn–M? Relation for Galaxies with CALIFA and MaNGA
Aquino-Ortíz,E.1; Sánchez,S. F.1; Valenzuela,O.1; Hernández-Toledo,H.1; Jin,Yunpeng2; Zhu,Ling3; van de Ven,Glenn4; Barrera-Ballesteros,J. K.1; Avila-Reese,V.1; Rodríguez-Puebla,A.1; Tissera,Patricia B.5
Source PublicationThe Astrophysical Journal
AbstractAbstract We use the stellar kinematics for 2458 galaxies from the MaNGA survey to explore a universal fundamental plane (UFP) described by the equation , defined by the logarithms of effective radius, Re; the surface brightness within Re, Ie; the dynamical mass-to-light ratio within Re, Ye; and the total velocity parameter at Re, , where is the rotation velocity and is the velocity dispersion. The surface brightness is within Re, Ie, and the dynamical mass-to-light ratio is within Re, ?e. We use sophisticated Schwarzschild dynamical models for a subsample of 300 galaxies from the CALIFA survey to calibrate the universal fundamental plane. This calibration allows us to propose both (i) a parameterization to estimate the difficult-to-measure averaged dynamical mass-to-light ratio within Re, , once the internal kinematics, surface brightness, and effective radius are known; and (ii) a new, more robust dynamical mass proxy consistent with dynamical models within 0.09 dex. We reproduce the relation between the dynamical mass and the stellar mass in the inner regions of galaxies with lower scatter. We use the estimated from our analysis to explore the UFP with the MaNGA data set. We find that all galaxies, from spheroids to disks, follow the UFP with a scatter significantly smaller (0.05 dex) than the one reported for the fundamental plane (~0.09 dex) and comparable with Tully–Fisher studies (~0.05 dex), but for a wider range of galaxy types. We also confirm that spheroidal and spiral galaxies follow the same M?–S0.5 scaling relation, with lower scatter than the and ones, which is in agreement with previous studies found in the literature.
KeywordGalaxies Early-type galaxies Late-type galaxies Scaling relations Galaxy kinematics
WOS IDIOP:0004-637X-900-2-aba94e
PublisherThe American Astronomical Society
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Document Type期刊论文
Affiliation1.Instituto de Astronomía, Universidad Nacional Autónoma de México A.P. 70-264, 04510. CDMX, México;
2.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People’s Republic of China
3.Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People’s Republic of China
4.Department of Astrophysics, University of Vienna, TAijrkenschanzstrasse 17, 1180 Vienna, Austria
5.Departamento de Ciencias Físicas, Universidad Andrés Bello, 700 Fernández Concha, Las Condes, Santiago, Chile
Recommended Citation
GB/T 7714
Aquino-Ortíz,E.,Sánchez,S. F.,Valenzuela,O.,等. A Universal Fundamental Plane and the Mdyn–M? Relation for Galaxies with CALIFA and MaNGA[J]. The Astrophysical Journal,2020,900(2).
APA Aquino-Ortíz,E..,Sánchez,S. F..,Valenzuela,O..,Hernández-Toledo,H..,Jin,Yunpeng.,...&Tissera,Patricia B..(2020).A Universal Fundamental Plane and the Mdyn–M? Relation for Galaxies with CALIFA and MaNGA.The Astrophysical Journal,900(2).
MLA Aquino-Ortíz,E.,et al."A Universal Fundamental Plane and the Mdyn–M? Relation for Galaxies with CALIFA and MaNGA".The Astrophysical Journal 900.2(2020).
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