THE ENVIRONMENTS OF OPTICALLY SELECTED QSOS AT 0.9-LESS-THAN-Z-LESS-THAN-1.5

被引：26

作者：

BOYLE, BJ ^{[1
]}

COUCH, WJ ^{[1
]}

机构：

[1] UNIV NEW S WALES,SCH PHYS,KENSINGTON,NSW 2033,AUSTRALIA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1993年 / 264卷 / 03期

关键词：

GALAXIES-CLUSTERING; GALAXIES-EVOLUTION; QUASARS-GENERAL; GRAVITATIONAL LENSING;

D O I：

10.1093/mnras/264.3.604

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Deep (R < 2 3) CCD images around 27 faint ([ MB ] approximately -24) radio-quiet QSOs in the redshift range 0.9 < z < 1.5 have been analysed to search for associations between QSOs and faint galaxies. No significant excess of galaxies is found around the QSOs, in marked contrast to previous studies of optically luminous, radio-loud QSOs. This result may reflect real differences between the environments of radio-loud and radio-quiet QSOs at intermediate redshifts. However, optical luminosity effects and the differential effect of gravitational lensing may also play an important role in the observed differences in the cluster environment between these two classes of QSO.

引用

页码：604 / 610

页数：7

共 26 条

[21] NATURE OF QSO REDSHIFTS [J].

STOCKTON, A .

ASTROPHYSICAL JOURNAL, 1978, 223 (03) :747-757

[22] GALAXY CLUSTERING IN QSO FIELDS AT Z=1-1.5 - EVIDENCE FOR GALAXY LUMINOSITY EVOLUTION [J].

TYSON, JA .

ASTRONOMICAL JOURNAL, 1986, 92 (04) :691-699

[23]

WEBSTER R, 1991, ASTR SOC P, V21, P160

[24] DETECTION OF STATISTICAL GRAVITATIONAL LENSING BY FOREGROUND MASS DISTRIBUTIONS [J].

WEBSTER, RL ;

HEWETT, PC ;

HARDING, ME ;

WEGNER, GA .

NATURE, 1988, 336 (6197) :358-359

[25] AN IMAGING SURVEY OF FIELDS AROUND QUASARS .2. THE ASSOCIATION OF GALAXIES WITH QUASARS [J].

YEE, HKC ;

GREEN, RF .

ASTROPHYSICAL JOURNAL, 1984, 280 (01) :79-90

[26] SURVEYS OF FIELDS AROUND QUASARS .4. LUMINOSITY OF GALAXIES AT Z-ALMOST-EQUAL-TO-0.6 AND PRELIMINARY EVIDENCE FOR THE EVOLUTION OF THE ENVIRONMENT OF RADIO-LOUD QUASARS [J].

YEE, HKC ;

GREEN, RF .

ASTROPHYSICAL JOURNAL, 1987, 319 (01) :28-43

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