The systemic redshift of the quasar 1331 + 170

R. F. Carswell; C. M. Mountain; D. J. Robertson; S. M. Beard; A. R. Glendinning; D. C. Laird; L. C. Lawrence; D. Montgomery; G. Pentland; D. A. Pickup; I. A. Smith; J. A. Bailey; A. Bridger; M. M. Casali; T. R. Geballe; P. Puxley; M. G. Smith; G. S. Wright; S. K. Ramsay; A. C. Baker; B. R. Espey; M. J. Ward

The systemic redshift of the quasar 1331 + 170

R. F. Carswell^*, C. M. Mountain, D. J. Robertson, S. M. Beard, A. R. Glendinning, D. C. Laird, L. C. Lawrence, D. Montgomery, G. Pentland, D. A. Pickup, I. A. Smith, J. A. Bailey, A. Bridger, M. M. Casali, T. R. Geballe, P. Puxley, M. G. Smith, G. S. Wright, S. K. Ramsay, A. C. BakerB. R. Espey, M. J. Ward

^*Corresponding author for this work

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

34 Citations (Scopus)

Abstract

Infrared spectra covering the 1.6 and 2 μm regions of the quasar 1331 + 170, redshift z = 2.09, were obtained with the CGS4 spectrometer at the UK Infrared Telescope. These spectra show redshifted Hα, Hβ and [O III] lines. The redshifts of the forbidden lines are similar to the low-ionization lines measured at optical wave-lengths but are significantly higher than the high-ionization line redshift. Thus the low-ionization lines are likely to provide a reliable estimate for the systematic redshift in this object, and the high-ionization material is therefore flowing out from, or into, the quasar and is subject to some obscuration.

Original language	English
Journal	The Astrophysical Journal
Volume	381
Issue number	1 PART 2
Publication status	Published - 1 Nov 1991

Keywords

Line profiles
Quasars

Cite this

Carswell, R. F., Mountain, C. M., Robertson, D. J., Beard, S. M., Glendinning, A. R., Laird, D. C., Lawrence, L. C., Montgomery, D., Pentland, G., Pickup, D. A., Smith, I. A., Bailey, J. A., Bridger, A., Casali, M. M., Geballe, T. R., Puxley, P., Smith, M. G., Wright, G. S., Ramsay, S. K., ... Ward, M. J. (1991). The systemic redshift of the quasar 1331 + 170. The Astrophysical Journal, 381(1 PART 2).

@article{f9570dc8bbe242d598df5259b6e2f418,

title = "The systemic redshift of the quasar 1331 + 170",

abstract = "Infrared spectra covering the 1.6 and 2 μm regions of the quasar 1331 + 170, redshift z = 2.09, were obtained with the CGS4 spectrometer at the UK Infrared Telescope. These spectra show redshifted Hα, Hβ and [O III] lines. The redshifts of the forbidden lines are similar to the low-ionization lines measured at optical wave-lengths but are significantly higher than the high-ionization line redshift. Thus the low-ionization lines are likely to provide a reliable estimate for the systematic redshift in this object, and the high-ionization material is therefore flowing out from, or into, the quasar and is subject to some obscuration.",

keywords = "Line profiles, Quasars",

author = "Carswell, \{R. F.\} and Mountain, \{C. M.\} and Robertson, \{D. J.\} and Beard, \{S. M.\} and Glendinning, \{A. R.\} and Laird, \{D. C.\} and Lawrence, \{L. C.\} and D. Montgomery and G. Pentland and Pickup, \{D. A.\} and Smith, \{I. A.\} and Bailey, \{J. A.\} and A. Bridger and Casali, \{M. M.\} and Geballe, \{T. R.\} and P. Puxley and Smith, \{M. G.\} and Wright, \{G. S.\} and Ramsay, \{S. K.\} and Baker, \{A. C.\} and Espey, \{B. R.\} and Ward, \{M. J.\}",

year = "1991",

month = nov,

day = "1",

language = "English",

volume = "381",

journal = "The Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1 PART 2",

}

Carswell, RF, Mountain, CM, Robertson, DJ, Beard, SM, Glendinning, AR, Laird, DC, Lawrence, LC, Montgomery, D, Pentland, G, Pickup, DA, Smith, IA, Bailey, JA, Bridger, A, Casali, MM, Geballe, TR, Puxley, P, Smith, MG, Wright, GS, Ramsay, SK, Baker, AC, Espey, BR & Ward, MJ 1991, 'The systemic redshift of the quasar 1331 + 170', The Astrophysical Journal, vol. 381, no. 1 PART 2.

TY - JOUR

T1 - The systemic redshift of the quasar 1331 + 170

AU - Carswell, R. F.

AU - Mountain, C. M.

AU - Robertson, D. J.

AU - Beard, S. M.

AU - Glendinning, A. R.

AU - Laird, D. C.

AU - Lawrence, L. C.

AU - Montgomery, D.

AU - Pentland, G.

AU - Pickup, D. A.

AU - Smith, I. A.

AU - Bailey, J. A.

AU - Bridger, A.

AU - Casali, M. M.

AU - Geballe, T. R.

AU - Puxley, P.

AU - Smith, M. G.

AU - Wright, G. S.

AU - Ramsay, S. K.

AU - Baker, A. C.

AU - Espey, B. R.

AU - Ward, M. J.

PY - 1991/11/1

Y1 - 1991/11/1

N2 - Infrared spectra covering the 1.6 and 2 μm regions of the quasar 1331 + 170, redshift z = 2.09, were obtained with the CGS4 spectrometer at the UK Infrared Telescope. These spectra show redshifted Hα, Hβ and [O III] lines. The redshifts of the forbidden lines are similar to the low-ionization lines measured at optical wave-lengths but are significantly higher than the high-ionization line redshift. Thus the low-ionization lines are likely to provide a reliable estimate for the systematic redshift in this object, and the high-ionization material is therefore flowing out from, or into, the quasar and is subject to some obscuration.

AB - Infrared spectra covering the 1.6 and 2 μm regions of the quasar 1331 + 170, redshift z = 2.09, were obtained with the CGS4 spectrometer at the UK Infrared Telescope. These spectra show redshifted Hα, Hβ and [O III] lines. The redshifts of the forbidden lines are similar to the low-ionization lines measured at optical wave-lengths but are significantly higher than the high-ionization line redshift. Thus the low-ionization lines are likely to provide a reliable estimate for the systematic redshift in this object, and the high-ionization material is therefore flowing out from, or into, the quasar and is subject to some obscuration.

KW - Line profiles

KW - Quasars

UR - https://www.scopus.com/pages/publications/0002037690

M3 - Article

AN - SCOPUS:0002037690

SN - 0004-637X

VL - 381

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 1 PART 2

ER -

The systemic redshift of the quasar 1331 + 170

Abstract

Keywords

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