THE SYSTEMIC REDSHIFT OF THE QUASAR 1331+170

被引：40

作者：

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

机构：

[1] ROYAL OBSERV,EDINBURGH EH9 3HJ,MIDLOTHIAN,SCOTLAND

[2] JOINT ASTRON CTR,HILO,HI 96720

[3] UNIV EDINBURGH,DEPT ASTRON,EDINBURGH EH9 3JH,MIDLOTHIAN,SCOTLAND

[4] UNIV PITTSBURGH,DEPT PHYS & ASTRON,PITTSBURGH,PA 15260

[5] UNIV OXFORD,DEPT PHYS,OXFORD OX1 3RH,ENGLAND

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 381卷 / 01期

关键词：

LINE PROFILES; QUASARS;

D O I：

10.1086/186183

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Infrared spectra covering the 1.6 and 2-mu-m 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 H-alpha, H-beta, 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.

引用

页码：L5 / L8

页数：4

共 18 条

[1] SPECTROSCOPIC SURVEY OF 92 QSO CANDIDATES [J].