Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity?

Almudena Alonso-Herrero, Miguel Pereira-Santaella, George H. Rieke, Aleksandar M. Diamond-Stanic, Yiping Wang, Antonio Hernán-Caballero, Dimitra Rigopoulou

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Local luminous infrared (IR) galaxies (LIRGs) have both high star formation rates (SFR) and a high AGN (Seyfert and AGN/starburst composite) incidence. Therefore, they are ideal candidates to explore the co-evolution of black hole (BH) growth and star formation (SF) activity, not necessarily associated with major mergers. Here, we use Spitzer/IRS spectroscopy of a complete volume-limited sample of local LIRGs (distances of <78 Mpc). We estimate typical BH masses of 3 × 107 M using [Ne III] 15.56 μm and optical [O III] λ5007 gas velocity dispersions and literature stellar velocity dispersions. We find that in a large fraction of local LIRGs, the current SFR is taking place not only in the inner nuclear ∼1.5 kpc region, as estimated from the nuclear 11.3 μm PAH luminosities, but also in the host galaxy. We next use the ratios between the SFRs and BH accretion rates (BHAR) to study whether the SF activity and BH growth are contemporaneous in local LIRGs. On average, local LIRGs have SFR to BHAR ratios higher than those of optically selected Seyferts of similar active galactic nucleus (AGN) luminosities. However, the majority of the IR-bright galaxies in the revised-Shapley-Ames Seyfert sample behave like local LIRGs. Moreover, the AGN incidence tends to be higher in local LIRGs with the lowest SFRs. All of this suggests that in local LIRGs there is a distinct IR-bright star-forming phase taking place prior to the bulk of the current BH growth (i.e., AGN phase). The latter is reflected first as a composite and then as a Seyfert, and later as a non-LIRG optically identified Seyfert nucleus with moderate SF in its host galaxy.

Original languageEnglish (US)
Article number78
JournalAstrophysical Journal
Volume765
Issue number2
DOIs
StatePublished - Mar 10 2013

Fingerprint

coevolution
star formation
galaxies
active galactic nuclei
accretion
star formation rate
merger
PAH
spectroscopy
rate
incidence
infrared stars
luminosity
Indian spacecraft
composite materials
gas
polycyclic aromatic hydrocarbons

Keywords

  • galaxies: nuclei
  • galaxies: Seyfert
  • infrared: galaxies

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Alonso-Herrero, A., Pereira-Santaella, M., Rieke, G. H., Diamond-Stanic, A. M., Wang, Y., Hernán-Caballero, A., & Rigopoulou, D. (2013). Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity? Astrophysical Journal, 765(2), [78]. https://doi.org/10.1088/0004-637X/765/2/78

Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity? / Alonso-Herrero, Almudena; Pereira-Santaella, Miguel; Rieke, George H.; Diamond-Stanic, Aleksandar M.; Wang, Yiping; Hernán-Caballero, Antonio; Rigopoulou, Dimitra.

In: Astrophysical Journal, Vol. 765, No. 2, 78, 10.03.2013.

Research output: Contribution to journalArticle

Alonso-Herrero, A, Pereira-Santaella, M, Rieke, GH, Diamond-Stanic, AM, Wang, Y, Hernán-Caballero, A & Rigopoulou, D 2013, 'Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity?', Astrophysical Journal, vol. 765, no. 2, 78. https://doi.org/10.1088/0004-637X/765/2/78
Alonso-Herrero A, Pereira-Santaella M, Rieke GH, Diamond-Stanic AM, Wang Y, Hernán-Caballero A et al. Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity? Astrophysical Journal. 2013 Mar 10;765(2). 78. https://doi.org/10.1088/0004-637X/765/2/78
Alonso-Herrero, Almudena ; Pereira-Santaella, Miguel ; Rieke, George H. ; Diamond-Stanic, Aleksandar M. ; Wang, Yiping ; Hernán-Caballero, Antonio ; Rigopoulou, Dimitra. / Local luminous infrared galaxies. III. co-evolution of black hole growth and star formation activity?. In: Astrophysical Journal. 2013 ; Vol. 765, No. 2.
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