Ground-based and HST optical-infrared studies of quasar host galaxies at low redshift

M. J. Kukula; James Dunlop; R. J. McLure; S. A. Baum; C. P. O'Dea; D. H. Hughes

doi:10.1016/S0273-1177(99)00226-4

Ground-based and HST optical-infrared studies of quasar host galaxies at low redshift

M. J. Kukula, James Dunlop, R. J. McLure, S. A. Baum, C. P. O'Dea, D. H. Hughes

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the results from a series of ground-based and HST programs aimed at investigating the host galaxies of both radio-loud and radio-quiet quasars (RLQs & RQQs) and FRII radio galaxies (RGs) at low redshifts (0.1 <z <0.3). Our results are in good agreement with those of other recent studies of host galaxies. In general the hosts of powerful AGN are large, luminous (> 2L*) galaxies, with underlying stellar populations which are predominantly old and red. The host galaxies of RLQs are massive ellipticals, indistinguishable from the FRII radio galaxies, consistent with unification of these sources by viewing angle. Although we find disc-like hosts around two low-luminosity (MR > -23.5) RQQs, our R-band imaging campaign with HST, though currently incomplete, indicates that all quasars with MR <-23.5, occur in massive elliptical galaxies regardless of their radio luminosity.

Original language	English
Pages (from-to)	1131-1138
Journal	Advances in Space Research
Volume	23
Issue number	5-6
DOIs	https://doi.org/10.1016/S0273-1177(99)00226-4
Publication status	Published - 1999

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@article{1999d9d688c1481fb21c813b5b750a32,

title = "Ground-based and HST optical-infrared studies of quasar host galaxies at low redshift",

abstract = "We describe the results from a series of ground-based and HST programs aimed at investigating the host galaxies of both radio-loud and radio-quiet quasars (RLQs & RQQs) and FRII radio galaxies (RGs) at low redshifts (0.1 <z <0.3). Our results are in good agreement with those of other recent studies of host galaxies. In general the hosts of powerful AGN are large, luminous (> 2L*) galaxies, with underlying stellar populations which are predominantly old and red. The host galaxies of RLQs are massive ellipticals, indistinguishable from the FRII radio galaxies, consistent with unification of these sources by viewing angle. Although we find disc-like hosts around two low-luminosity (MR > -23.5) RQQs, our R-band imaging campaign with HST, though currently incomplete, indicates that all quasars with MR <-23.5, occur in massive elliptical galaxies regardless of their radio luminosity.",

author = "Kukula, {M. J.} and James Dunlop and McLure, {R. J.} and Baum, {S. A.} and O'Dea, {C. P.} and Hughes, {D. H.}",

year = "1999",

doi = "10.1016/S0273-1177(99)00226-4",

language = "English",

volume = "23",

pages = "1131--1138",

journal = "Advances in Space Research",

issn = "0273-1177",

publisher = "Elsevier Ltd",

number = "5-6",

}

TY - JOUR

T1 - Ground-based and HST optical-infrared studies of quasar host galaxies at low redshift

AU - Kukula, M. J.

AU - Dunlop, James

AU - McLure, R. J.

AU - Baum, S. A.

AU - O'Dea, C. P.

AU - Hughes, D. H.

PY - 1999

Y1 - 1999

N2 - We describe the results from a series of ground-based and HST programs aimed at investigating the host galaxies of both radio-loud and radio-quiet quasars (RLQs & RQQs) and FRII radio galaxies (RGs) at low redshifts (0.1 <z <0.3). Our results are in good agreement with those of other recent studies of host galaxies. In general the hosts of powerful AGN are large, luminous (> 2L*) galaxies, with underlying stellar populations which are predominantly old and red. The host galaxies of RLQs are massive ellipticals, indistinguishable from the FRII radio galaxies, consistent with unification of these sources by viewing angle. Although we find disc-like hosts around two low-luminosity (MR > -23.5) RQQs, our R-band imaging campaign with HST, though currently incomplete, indicates that all quasars with MR <-23.5, occur in massive elliptical galaxies regardless of their radio luminosity.

AB - We describe the results from a series of ground-based and HST programs aimed at investigating the host galaxies of both radio-loud and radio-quiet quasars (RLQs & RQQs) and FRII radio galaxies (RGs) at low redshifts (0.1 <z <0.3). Our results are in good agreement with those of other recent studies of host galaxies. In general the hosts of powerful AGN are large, luminous (> 2L*) galaxies, with underlying stellar populations which are predominantly old and red. The host galaxies of RLQs are massive ellipticals, indistinguishable from the FRII radio galaxies, consistent with unification of these sources by viewing angle. Although we find disc-like hosts around two low-luminosity (MR > -23.5) RQQs, our R-band imaging campaign with HST, though currently incomplete, indicates that all quasars with MR <-23.5, occur in massive elliptical galaxies regardless of their radio luminosity.

U2 - 10.1016/S0273-1177(99)00226-4

DO - 10.1016/S0273-1177(99)00226-4

M3 - Article

VL - 23

SP - 1131

EP - 1138

JO - Advances in Space Research

JF - Advances in Space Research

SN - 0273-1177

IS - 5-6

ER -

Ground-based and HST optical-infrared studies of quasar host galaxies at low redshift

Abstract

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