A Correlation Between Star Formation Rate and Average Black Hole Accretion in Star-Forming Galaxies

Chen, Chien-Ting; Hickox, Ryan C.; Alberts, Stacey; Brodwin, M.; Jones, C.; Murray, Stephen S.; Alexander, D. M.; Assef, Roberto J.; Brown, M. J. I.; Dey, Arjun; Forman, W.; Gorjian, Varoujan; Goulding, A. D.; Floc’h, E. Le; Jannuzi, Buell T.; Mullaney, James; Pope, Alexandra

doi:10.1088/0004-637x/773/1/3

Cited by 200 publications

(221 citation statements)

References 91 publications

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“…8.3). This is in agreement with scenarios where both the intense SF activity and the efficient accretion on the black hole are triggered by gas rich major mergers (e.g., Chen et al 2013;Symeonidis et al 2013). …”

Section: Discussionsupporting

confidence: 89%

Star formation properties of sub-mJy radio sources

Bonzini

Mainieri

Padovani

et al. 2015

Mon. Not. R. Astron. Soc.

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We investigate the star formation properties of ∼ 800 sources detected in one of the deepest radio surveys at 1.4 GHz. Our sample spans a wide redshift range (∼ 0.1 − 4) and about four orders of magnitude in star formation rate (SFR). It includes both star forming galaxies (SFGs) and active galactic nuclei (AGNs), further divided into radio-quiet and radio-loud objects. We compare the SFR derived from the far infrared luminosity, as traced by Herschel, with the SFR computed from their radio emission. We find that the radio power is a good SFR tracer not only for pure SFGs but also in the host galaxies of RQ AGNs, with no significant deviation with redshift or specific SFR. Moreover, we quantify the contribution of the starburst activity in the SFGs population and the occurrence of AGNs in sources with different level of star formation. Finally we discuss the possibility of using deep radio survey as a tool to study the cosmic star formation history.

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Section: Discussionsupporting

confidence: 89%

Star formation properties of sub-mJy radio sources

Bonzini

Mainieri

Padovani

et al. 2015

Mon. Not. R. Astron. Soc.

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“…Thus, the weak observed correlation between star formation and BH accretion might be attributed to the timescale difference between the AGN accretion efficiency and star formation variability (e.g. Mullaney et al 2012b;Chen et al 2013;Hickox et al 2014).…”

Section: The Star Formation Dependence On Agn Activitymentioning

confidence: 99%

Observational evidence that positive and negative AGN feedback depends on galaxy mass and jet power

Kalfountzou

Stevens

Jarvis

et al. 2017

Monthly Notices of the Royal Astronomical Society

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Several studies support the existence of a link between the AGN and star formation activity. Radio jets have been argued to be an ideal mechanism for direct interaction between the AGN and the host galaxy. A drawback of previous surveys of AGN is that they are fundamentally limited by the degeneracy between redshift and luminosity in flux-density limited samples. To overcome this limitation, we present far-infrared Herschel observations of 74 radio-loud quasars (RLQs), 72 radio-quiet quasars (RQQs) and 27 radio galaxies (RGs), selected at 0.9 < z < 1.1 which span over two decades in optical luminosity. By decoupling luminosity from evolutionary effects, we investigate how the star formation rate (SFR) depends on AGN luminosity, radio-loudness and orientation. We find that: 1) the SFR shows a weak correlation with the bolometric luminosity for all AGN sub-samples, 2) the RLQs show a SFR excess of about a factor of 1.4 compared to the RQQs, matched in terms of black hole mass and bolometric luminosity, suggesting that either positive radio-jet feedback or radio AGN triggering are linked to star-formation triggering and 3) RGs have lower SFRs by a factor of 2.5 than the RLQ sub-sample with the same BH mass and bolometric luminosity. We suggest that there is some jet power threshold at which radio-jet feedback switches from enhancing star formation (by compressing gas) to suppressing it (by ejecting gas). This threshold depends on both galaxy mass and jet power.

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“…Lutz et al 2008;Serjeant & Hatziminaoglou 2009;Bonfield et al 2011;Silverman et al 2009;LaMassa et al 2013), some others found a strong correlation (e.g. Hao et al 2005;Satyapal et al 2005;Netzer 2009;Shi et al 2009;Chen et al 2013a) whereas others (e.g. Harrison et al 2012;Rosario et al 2012;Rovilos et al 2012;Mullaney et al 2012;Bongiorno et al 2012) found a flat relationship (or no evidence for a correlation).…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, instead of concentrating on individual sources and instantaneous AGN activity, averaging the AGN luminosity over the populations should provide a clearer view of the relation between SFR and AGN activity (e.g. Chen et al 2013a).…”

Section: Introductionmentioning

confidence: 99%

Herschel-ATLAS: the connection between star formation and AGN activity in radio-loud and radio-quiet active galaxies

Gürkan¹,

Hardcastle²,

Jarvis³

et al. 2015

Mon. Not. R. Astron. Soc.

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We examine the relationship between star formation and AGN activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-ATLAS fields. Radio-loud AGN are classified as high-excitation and low-excitation radio galaxies (HERGs, LERGs) using their emission lines and WISE 22-µm luminosity. AGN accretion and jet powers in these active galaxies are traced by [OIII] emission-line and radio luminosity, respectively. Star formation rates (SFRs) and specific star formation rates (SSFRs) were derived using Herschel 250-µm luminosity and stellar mass measurements from the SDSS−MPA-JHU catalogue. In the past, star formation studies of AGN have mostly focused on high-redshift sources to observe the thermal dust emission that peaks in the far-infrared, which limited the samples to powerful objects. However, with Herschel we can expand this to low redshifts. Our stacking analyses show that SFRs and SSFRs of both radio-loud and radioquiet AGN increase with increasing AGN power but that radio-loud AGN tend to have lower SFR. Additionally, radio-quiet AGN are found to have approximately an order of magnitude higher SSFRs than radio-loud AGN for a given level of AGN power. The difference between the star formation properties of radio-loud and -quiet AGN is also seen in samples matched in stellar mass.

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A Correlation Between Star Formation Rate and Average Black Hole Accretion in Star-Forming Galaxies

Cited by 200 publications

References 91 publications

Star formation properties of sub-mJy radio sources

Star formation properties of sub-mJy radio sources

Observational evidence that positive and negative AGN feedback depends on galaxy mass and jet power

Herschel-ATLAS: the connection between star formation and AGN activity in radio-loud and radio-quiet active galaxies

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