INFRARED-SPECTROSCOPY OF HIGH-REDSHIFT QUASARS

被引：21

作者：

BAKER, AC

CARSWELL, RF

BAILEY, JA

ESPEY, BR

SMITH, MG

WARD, MJ

机构：

[1] ANGLO AUSTRALIAN OBSERV,EPPING,NSW 2121,AUSTRALIA

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

[3] JOINT ASTRON CTR,HILO,HI 96720

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

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1994年 / 270卷 / 03期

关键词：

QUASARS; EMISSION LINES; GENERAL; INFRARED; GALAXIES;

D O I：

10.1093/mnras/270.3.575

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present H and K spectra (showing redshifted H alpha, H beta and [O III] emission lines) of three radio-loud and three radio-quiet quasars with redshifts z greater than or similar to 2, which were obtained using CGS4 on UKIRT. The [O III] lambda lambda 4959 + 5007 lines are too weak to allow accurate determination of the redshift of the forbidden lines. The observed Balmer decrements are consistent with enhancement of H alpha due to collisional excitation.

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页码：575 / 579

页数：5

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