Abstract
Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space Telescope are presented for three radio-loud quasars: 3C 48 (z = 0.367), B2 1425+267 (z = 0.366), and 3C 345 (z = 0.594). All three quasars have luminous (∼4 × L*) galaxies as hosts, which are either elliptical (B2 1425+267 and 3C345) or interacting (3C 48), and all hosts are 0.5-1.0 mag bluer in V-I than other galaxies with the same overall morphology at redshifts similar to those of the quasars. The host of 3C 48 has many H II regions and a very extended tidal tail. All nine of the radio-loud quasars studied here and in a previous paper by Bahcall et al. either have bright elliptical hosts or occur in interacting systems. There is a robust correlation between the radio emission of the quasar and the luminosity of host galaxy; the radio-loud quasars reside in galaxies that are on average ∼ 1 mag brighter than hosts of the radio-quiet quasars.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 67-77 |
| Number of pages | 11 |
| Journal | Astrophysical Journal |
| Volume | 520 |
| Issue number | 1 PART 1 |
| State | Published - Jul 20 1999 |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
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The host galaxies of three radio-loud quasars : 3C 48, 3C 345, and B2 1425+267. / Kirhakos, Sofia; Bahcall, John N.; Schneider, Donald P.; Kristian, Jerome.
In: Astrophysical Journal, Vol. 520, No. 1 PART 1, 20.07.1999, p. 67-77.Research output: Contribution to journal › Article
TY - JOUR
T1 - The host galaxies of three radio-loud quasars
T2 - 3C 48, 3C 345, and B2 1425+267
AU - Kirhakos, Sofia
AU - Bahcall, John N.
AU - Schneider, Donald P.
AU - Kristian, Jerome
PY - 1999/7/20
Y1 - 1999/7/20
N2 - Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space Telescope are presented for three radio-loud quasars: 3C 48 (z = 0.367), B2 1425+267 (z = 0.366), and 3C 345 (z = 0.594). All three quasars have luminous (∼4 × L*) galaxies as hosts, which are either elliptical (B2 1425+267 and 3C345) or interacting (3C 48), and all hosts are 0.5-1.0 mag bluer in V-I than other galaxies with the same overall morphology at redshifts similar to those of the quasars. The host of 3C 48 has many H II regions and a very extended tidal tail. All nine of the radio-loud quasars studied here and in a previous paper by Bahcall et al. either have bright elliptical hosts or occur in interacting systems. There is a robust correlation between the radio emission of the quasar and the luminosity of host galaxy; the radio-loud quasars reside in galaxies that are on average ∼ 1 mag brighter than hosts of the radio-quiet quasars.
AB - Observations with the Wide-Field/Planetary Camera-2 of the Hubble Space Telescope are presented for three radio-loud quasars: 3C 48 (z = 0.367), B2 1425+267 (z = 0.366), and 3C 345 (z = 0.594). All three quasars have luminous (∼4 × L*) galaxies as hosts, which are either elliptical (B2 1425+267 and 3C345) or interacting (3C 48), and all hosts are 0.5-1.0 mag bluer in V-I than other galaxies with the same overall morphology at redshifts similar to those of the quasars. The host of 3C 48 has many H II regions and a very extended tidal tail. All nine of the radio-loud quasars studied here and in a previous paper by Bahcall et al. either have bright elliptical hosts or occur in interacting systems. There is a robust correlation between the radio emission of the quasar and the luminosity of host galaxy; the radio-loud quasars reside in galaxies that are on average ∼ 1 mag brighter than hosts of the radio-quiet quasars.
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M3 - Article
VL - 520
SP - 67
EP - 77
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 1 PART 1
ER -