Advanced search
1 file | 35.66 MB Add to list

The fundamental plane in the LEGA-C survey : unraveling the M/L ratio variations of massive star-forming and quiescent galaxies at z ∼ 0.8

Author
Organization
Abstract
We explore the connection between the kinematics, structures and stellar populations of massive galaxies at 0.6 < z < 1.0 using the fundamental plane (FP). Combining stellar kinematic data from the Large Early Galaxy Astrophysics Census (LEGA-C) survey with structural parameters measured from deep Hubble Space Telescope imaging, we obtain a sample of 1419 massive (log (M-*/M-circle dot) > 10.5) galaxies that span a wide range in morphology, star formation activity, and environment, and therefore is representative of the massive galaxy population at z similar to 0.8. We find that quiescent and star-forming galaxies occupy the parameter space of the g-band FP differently and thus have different distributions in the dynamical mass-to-light ratio (M-dyn/L-g), largely owing to differences in the stellar age and recent star formation history, and to a lesser extent, the effects of dust attenuation. In contrast, we show that both star-forming and quiescent galaxies lie on the same mass FP at z similar to 0.8, with a comparable level of intrinsic scatter about the plane. We examine the variation in M-dyn/M-* through the thickness of the mass FP, finding no significant residual correlations with stellar population properties, Sersic index, or galaxy overdensity. Our results suggest that, at fixed size and velocity dispersion, the variations in M-dyn/L-g of massive galaxies reflect an approximately equal contribution of variations in M-*/L-g, and variations in the dark matter fraction or initial mass function.
Keywords
Space and Planetary Science, Astronomy and Astrophysics, STELLAR POPULATION SYNTHESIS, HIGH-REDSHIFT GALAXIES, ELLIPTIC GALAXIES, LIGHT RATIO, SPHEROIDAL GALAXIES, FORMATION EPOCH, SIZE EVOLUTION, SIMPLE-MODEL, DEPENDENCE, SPECTROSCOPY

Downloads

  • (...).pdf
    • full text (Published version)
    • |
    • UGent only
    • |
    • PDF
    • |
    • 35.66 MB

Citation

Please use this url to cite or link to this publication:

MLA
de Graaff, Anna, et al. “The Fundamental Plane in the LEGA-C Survey : Unraveling the M/L Ratio Variations of Massive Star-Forming and Quiescent Galaxies at z ∼ 0.8.” ASTROPHYSICAL JOURNAL, vol. 913, no. 2, 2021, doi:10.3847/1538-4357/abf1e7.
APA
de Graaff, A., Bezanson, R., Franx, M., van der Wel, A., Holden, B., van de Sande, J., … Wu, P.-F. (2021). The fundamental plane in the LEGA-C survey : unraveling the M/L ratio variations of massive star-forming and quiescent galaxies at z ∼ 0.8. ASTROPHYSICAL JOURNAL, 913(2). https://doi.org/10.3847/1538-4357/abf1e7
Chicago author-date
Graaff, Anna de, Rachel Bezanson, Marijn Franx, Arjen van der Wel, Bradford Holden, Jesse van de Sande, Eric F. Bell, et al. 2021. “The Fundamental Plane in the LEGA-C Survey : Unraveling the M/L Ratio Variations of Massive Star-Forming and Quiescent Galaxies at z ∼ 0.8.” ASTROPHYSICAL JOURNAL 913 (2). https://doi.org/10.3847/1538-4357/abf1e7.
Chicago author-date (all authors)
de Graaff, Anna, Rachel Bezanson, Marijn Franx, Arjen van der Wel, Bradford Holden, Jesse van de Sande, Eric F. Bell, Francesco D’Eugenio, Michael V. Maseda, Adam Muzzin, David Sobral, Caroline Straatman, and Po-Feng Wu. 2021. “The Fundamental Plane in the LEGA-C Survey : Unraveling the M/L Ratio Variations of Massive Star-Forming and Quiescent Galaxies at z ∼ 0.8.” ASTROPHYSICAL JOURNAL 913 (2). doi:10.3847/1538-4357/abf1e7.
Vancouver
1.
de Graaff A, Bezanson R, Franx M, van der Wel A, Holden B, van de Sande J, et al. The fundamental plane in the LEGA-C survey : unraveling the M/L ratio variations of massive star-forming and quiescent galaxies at z ∼ 0.8. ASTROPHYSICAL JOURNAL. 2021;913(2).
IEEE
[1]
A. de Graaff et al., “The fundamental plane in the LEGA-C survey : unraveling the M/L ratio variations of massive star-forming and quiescent galaxies at z ∼ 0.8,” ASTROPHYSICAL JOURNAL, vol. 913, no. 2, 2021.
@article{8716722,
  abstract     = {{We explore the connection between the kinematics, structures and stellar populations of massive galaxies at 0.6 < z < 1.0 using the fundamental plane (FP). Combining stellar kinematic data from the Large Early Galaxy Astrophysics Census (LEGA-C) survey with structural parameters measured from deep Hubble Space Telescope imaging, we obtain a sample of 1419 massive (log (M-*/M-circle dot) > 10.5) galaxies that span a wide range in morphology, star formation activity, and environment, and therefore is representative of the massive galaxy population at z similar to 0.8. We find that quiescent and star-forming galaxies occupy the parameter space of the g-band FP differently and thus have different distributions in the dynamical mass-to-light ratio (M-dyn/L-g), largely owing to differences in the stellar age and recent star formation history, and to a lesser extent, the effects of dust attenuation. In contrast, we show that both star-forming and quiescent galaxies lie on the same mass FP at z similar to 0.8, with a comparable level of intrinsic scatter about the plane. We examine the variation in M-dyn/M-* through the thickness of the mass FP, finding no significant residual correlations with stellar population properties, Sersic index, or galaxy overdensity. Our results suggest that, at fixed size and velocity dispersion, the variations in M-dyn/L-g of massive galaxies reflect an approximately equal contribution of variations in M-*/L-g, and variations in the dark matter fraction or initial mass function.}},
  articleno    = {{103}},
  author       = {{de Graaff, Anna and Bezanson, Rachel and Franx, Marijn and van der Wel, Arjen and Holden, Bradford and van de Sande, Jesse and Bell, Eric F. and D’Eugenio, Francesco and Maseda, Michael V. and Muzzin, Adam and Sobral, David and Straatman, Caroline and Wu, Po-Feng}},
  issn         = {{0004-637X}},
  journal      = {{ASTROPHYSICAL JOURNAL}},
  keywords     = {{Space and Planetary Science,Astronomy and Astrophysics,STELLAR POPULATION SYNTHESIS,HIGH-REDSHIFT GALAXIES,ELLIPTIC GALAXIES,LIGHT RATIO,SPHEROIDAL GALAXIES,FORMATION EPOCH,SIZE EVOLUTION,SIMPLE-MODEL,DEPENDENCE,SPECTROSCOPY}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{24}},
  title        = {{The fundamental plane in the LEGA-C survey : unraveling the M/L ratio variations of massive star-forming and quiescent galaxies at z ∼ 0.8}},
  url          = {{http://dx.doi.org/10.3847/1538-4357/abf1e7}},
  volume       = {{913}},
  year         = {{2021}},
}

Altmetric
View in Altmetric
Web of Science
Times cited: