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Stellar dynamics and star formation histories of z ∼ 1 radio-loud galaxies

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Abstract
We investigate the stellar kinematics and stellar populations of 58 radio-loud galaxies of intermediate luminosities (L 3 GHz > 1023 W Hz-1) at 0.6 < z < 1. This sample is constructed by cross-matching galaxies from the deep VLT/VIMOS LEGA-C spectroscopic survey with the VLA 3 GHz data set. The LEGA-C continuum spectra reveal for the first time stellar velocity dispersions and age indicators of z ˜ 1 radio galaxies. We find that z ˜ 1 radio-loud active galactic nucleus (AGN) occur exclusively in predominantly old galaxies with high velocity dispersions: σ * > 175 km s-1, corresponding to black hole masses in excess of 108 M ⊙. Furthermore, we confirm that at a fixed stellar mass the fraction of radio-loud AGN at z ˜ 1 is five to 10 times higher than in the local universe, suggesting that quiescent, massive galaxies at z ˜ 1 switch on as radio AGN on average once every Gyr. Our results strengthen the existing evidence for a link between high black hole masses, radio loudness, and quiescence at z ˜ 1.
Keywords
galaxies: evolution, galaxies: fundamental parameters, galaxies: high-redshift, galaxies: jets, galaxies: star formation, ACTIVE GALACTIC NUCLEI, SUPERMASSIVE BLACK-HOLES, GHZ LARGE PROJECT, AGN FEEDBACK, COSMIC EVOLUTION, FORMING GALAXIES, HOST GALAXIES, MASSIVE GALAXIES, POPULATION, CATALOG

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MLA
Barišić, Ivana, Arjen van der Wel, Rachel Bezanson, et al. “Stellar Dynamics and Star Formation Histories of z ∼ 1 Radio-loud Galaxies.” ASTROPHYSICAL JOURNAL 847.1 (2017): n. pag. Print.
APA
Barišić, I., van der Wel, A., Bezanson, R., Pacifici, C., Noeske, K., Muñoz-Mateos, J. C., Franx, M., et al. (2017). Stellar dynamics and star formation histories of z ∼ 1 radio-loud galaxies. ASTROPHYSICAL JOURNAL, 847(1).
Chicago author-date
Barišić, Ivana, Arjen van der Wel, Rachel Bezanson, Camilla Pacifici, Kai Noeske, Juan C Muñoz-Mateos, Marijn Franx, et al. 2017. “Stellar Dynamics and Star Formation Histories of z ∼ 1 Radio-loud Galaxies.” Astrophysical Journal 847 (1).
Chicago author-date (all authors)
Barišić, Ivana, Arjen van der Wel, Rachel Bezanson, Camilla Pacifici, Kai Noeske, Juan C Muñoz-Mateos, Marijn Franx, Vernesa Smolčić, Eric F Bell, Gabriel Brammer, João Calhau, Priscilla Chauké, Pieter G van Dokkum, Josha van Houdt, Anna Gallazzi, Ivo Labbé, Michael V Maseda, Adam Muzzin, David Sobral, Caroline Straatman, and Po-Feng Wu. 2017. “Stellar Dynamics and Star Formation Histories of z ∼ 1 Radio-loud Galaxies.” Astrophysical Journal 847 (1).
Vancouver
1.
Barišić I, van der Wel A, Bezanson R, Pacifici C, Noeske K, Muñoz-Mateos JC, et al. Stellar dynamics and star formation histories of z ∼ 1 radio-loud galaxies. ASTROPHYSICAL JOURNAL. 2017;847(1).
IEEE
[1]
I. Barišić et al., “Stellar dynamics and star formation histories of z ∼ 1 radio-loud galaxies,” ASTROPHYSICAL JOURNAL, vol. 847, no. 1, 2017.
@article{8567755,
  abstract     = {We investigate the stellar kinematics and stellar populations of 58 radio-loud galaxies of intermediate luminosities (L 3 GHz > 1023 W Hz-1) at 0.6 < z < 1. This sample is constructed by cross-matching galaxies from the deep VLT/VIMOS LEGA-C spectroscopic survey with the VLA 3 GHz data set. The LEGA-C continuum spectra reveal for the first time stellar velocity dispersions and age indicators of z ˜ 1 radio galaxies. We find that z ˜ 1 radio-loud active galactic nucleus (AGN) occur exclusively in predominantly old galaxies with high velocity dispersions: σ * > 175 km s-1, corresponding to black hole masses in excess of 108 M ⊙. Furthermore, we confirm that at a fixed stellar mass the fraction of radio-loud AGN at z ˜ 1 is five to 10 times higher than in the local universe, suggesting that quiescent, massive galaxies at z ˜ 1 switch on as radio AGN on average once every Gyr. Our results strengthen the existing evidence for a link between high black hole masses, radio loudness, and quiescence at z ˜ 1.},
  articleno    = {72},
  author       = {Barišić, Ivana and van der Wel, Arjen and Bezanson, Rachel and Pacifici, Camilla and Noeske, Kai and Muñoz-Mateos, Juan C and Franx, Marijn and Smolčić, Vernesa and Bell, Eric F and Brammer, Gabriel and Calhau, João and Chauké, Priscilla and van Dokkum, Pieter G and van Houdt, Josha and Gallazzi, Anna and Labbé, Ivo and Maseda, Michael V and Muzzin, Adam and Sobral, David and Straatman, Caroline and Wu, Po-Feng},
  issn         = {0004-637X},
  journal      = {ASTROPHYSICAL JOURNAL},
  keywords     = {galaxies: evolution,galaxies: fundamental parameters,galaxies: high-redshift,galaxies: jets,galaxies: star formation,ACTIVE GALACTIC NUCLEI,SUPERMASSIVE BLACK-HOLES,GHZ LARGE PROJECT,AGN FEEDBACK,COSMIC EVOLUTION,FORMING GALAXIES,HOST GALAXIES,MASSIVE GALAXIES,POPULATION,CATALOG},
  language     = {eng},
  number       = {1},
  pages        = {9},
  title        = {Stellar dynamics and star formation histories of z ∼ 1 radio-loud galaxies},
  url          = {http://dx.doi.org/10.3847/1538-4357/aa8768},
  volume       = {847},
  year         = {2017},
}

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