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

G. Gürkan; M.J. Hardcastle; M. J. Jarvis; Daniel Smith; N. Bourne; L. Dunne; S. Maddox; R. J. Ivison; J. Fritz

doi:10.1093/mnras/stv1502

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

G. Gürkan, M.J. Hardcastle, M. J. Jarvis, Daniel Smith, N. Bourne, L. Dunne, S. Maddox, R. J. Ivison, J. Fritz

Centre for Astrophysics Research (CAR)

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Abstract

We examine the relationship between star formation and active galactic nuclei (AGN) activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-Astrophysical Terahertz Large Area Survey fields. Radio-loud AGN are classified as high-excitation and low-excitation radio galaxies using their emission lines and WISE 22-μm luminosity. AGN accretion and jet powers in these active galaxies are traced by [O III] 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 Sloan Digital Sky Survey–Max Planck Institute for Astrophysics-John Hopkins University 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, withHerschel we can expand this to low redshifts. Our stacking analyses show that SFRs and SSFRs of both radio-loud and radio-quiet 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

Original language	English
Pages (from-to)	3776-3794
Number of pages	19
Journal	Monthly Notices of the Royal Astronomical Society
Volume	452
Issue number	4
Early online date	7 Aug 2015
DOIs	https://doi.org/10.1093/mnras/stv1502
Publication status	Published - 1 Oct 2015

Keywords

Galaxies: active
Infrared: galaxies

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10.1093/mnras/stv1502

907192Accepted author manuscript, 1.63 MB

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title = "Herschel-ATLAS: The connection between star formation and AGN activity in radio-loud and radio-quiet active galaxies",

abstract = "We examine the relationship between star formation and active galactic nuclei (AGN) activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-Astrophysical Terahertz Large Area Survey fields. Radio-loud AGN are classified as high-excitation and low-excitation radio galaxies using their emission lines and WISE 22-μm luminosity. AGN accretion and jet powers in these active galaxies are traced by [O III] 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 Sloan Digital Sky Survey–Max Planck Institute for Astrophysics-John Hopkins University 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, withHerschel we can expand this to low redshifts. Our stacking analyses show that SFRs and SSFRs of both radio-loud and radio-quiet 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",

keywords = "Galaxies: active, Infrared: galaxies",

author = "G. G{\"u}rkan and M.J. Hardcastle and Jarvis, {M. J.} and Daniel Smith and N. Bourne and L. Dunne and S. Maddox and Ivison, {R. J.} and J. Fritz",

note = "Date of Acceptance: 06/07/2015",

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doi = "10.1093/mnras/stv1502",

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T1 - Herschel-ATLAS: The connection between star formation and AGN activity in radio-loud and radio-quiet active galaxies

AU - Gürkan, G.

AU - Hardcastle, M.J.

AU - Jarvis, M. J.

AU - Smith, Daniel

AU - Bourne, N.

AU - Dunne, L.

AU - Maddox, S.

AU - Ivison, R. J.

AU - Fritz, J.

N1 - Date of Acceptance: 06/07/2015

PY - 2015/10/1

Y1 - 2015/10/1

N2 - We examine the relationship between star formation and active galactic nuclei (AGN) activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-Astrophysical Terahertz Large Area Survey fields. Radio-loud AGN are classified as high-excitation and low-excitation radio galaxies using their emission lines and WISE 22-μm luminosity. AGN accretion and jet powers in these active galaxies are traced by [O III] 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 Sloan Digital Sky Survey–Max Planck Institute for Astrophysics-John Hopkins University 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, withHerschel we can expand this to low redshifts. Our stacking analyses show that SFRs and SSFRs of both radio-loud and radio-quiet 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

AB - We examine the relationship between star formation and active galactic nuclei (AGN) activity by constructing matched samples of local (0 < z < 0.6) radio-loud and radio-quiet AGN in the Herschel-Astrophysical Terahertz Large Area Survey fields. Radio-loud AGN are classified as high-excitation and low-excitation radio galaxies using their emission lines and WISE 22-μm luminosity. AGN accretion and jet powers in these active galaxies are traced by [O III] 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 Sloan Digital Sky Survey–Max Planck Institute for Astrophysics-John Hopkins University 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, withHerschel we can expand this to low redshifts. Our stacking analyses show that SFRs and SSFRs of both radio-loud and radio-quiet 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

KW - Galaxies: active

KW - Infrared: galaxies

U2 - 10.1093/mnras/stv1502

DO - 10.1093/mnras/stv1502

M3 - Article

AN - SCOPUS:84940118274

SN - 0035-8711

VL - 452

SP - 3776

EP - 3794

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

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

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