ARE NUCLEATED DWARF GALAXIES GENUINE ELLIPTICALS

被引：9

作者：

HARRIS, WE

机构：

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1991年 / 103卷 / 659期

关键词：

GALAXIES; CLUSTERS; GLOBULAR;

D O I：

10.1086/132792

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

There are now six known dwarf elliptical galaxies outside the Local Group (mostly in the Virgo and Fornax clusters) that appear to contain globular-cluster systems of their own; all of them were discovered accidentally during surveys for other purposes. All six of these are nucleated (dE,N) dwarfs. This evidence, although quite preliminary, supports the suggestion of Ferguson and Sandage that nucleated dwarfs are "genuine" E galaxies, generically more strongly related to large E/S0 galaxies than are nonnucleated dwarfs of the same luminosity level. A more systematic search for globular clusters in both types of dE's is recommended.

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页码：32 / 34

页数：3

相关论文

共 27 条

[1] SPECTRA OF THE 2 BRIGHTEST OBJECTS IN THE AMORPHOUS GALAXY NGC 1569 - SUPERLUMINOUS YOUNG STAR-CLUSTERS OR STARS IN A NEARBY PECULIAR GALAXY [J].

ARP, H ;

SANDAGE, A .

ASTRONOMICAL JOURNAL, 1985, 90 (07) :1163-&

[2] STUDIES OF THE VIRGO CLUSTER .2. A CATALOG OF 2096 GALAXIES IN THE VIRGO CLUSTER AREA [J].

BINGGELI, B ;

SANDAGE, A ;

TAMMANN, GA .

ASTRONOMICAL JOURNAL, 1985, 90 (09) :1681-1758

[3]

Binggeli B., 1985, STAR FORMING DWARF G, P53

[4] MEDIUM-RESOLUTION SPECTROSCOPY OF NUCLEATED DWARF ELLIPTICAL GALAXIES [J].

BOTHUN, GD ;

MOULD, JR .

ASTROPHYSICAL JOURNAL, 1988, 324 (01) :123-133

[5] THE USE OF DWARF ELLIPTICAL GALAXIES AS DISTANCE INDICATORS - THE RELATIVE DISTANCES BETWEEN VIRGO, FORNAX, AND CENTAURUS [J].

BOTHUN, GD ;

CALDWELL, N ;

SCHOMBERT, JM .

ASTRONOMICAL JOURNAL, 1989, 98 (05) :1542-&

[6] COMPARATIVE PHOTOMETRIC PARAMETERS OF DWARF IRREGULAR AND ELLIPTIC GALAXIES IN THE VIRGO CLUSTER - 2 DIFFERENT CLASSES OF DWARF GALAXIES [J].

BOTHUN, GD ;

MOULD, JR ;

CALDWELL, N ;

MACGILLIVRAY, HT .

ASTRONOMICAL JOURNAL, 1986, 92 (05) :1007-1019

[7]

BRIDGES TJ, 1990, IN PRESS AJ

[8] DWARF ELLIPTIC GALAXIES IN THE FORNAX CLUSTER .2. THEIR STRUCTURE AND STELLAR POPULATIONS [J].

CALDWELL, N ;

BOTHUN, GD .

ASTRONOMICAL JOURNAL, 1987, 94 (05) :1126-&

[9] THE GLOBULAR-CLUSTER SYSTEMS OF 3 VIRGO ELLIPTICALS [J].

COHEN, JG .

ASTRONOMICAL JOURNAL, 1988, 95 (03) :682-703

[10] THE SPATIAL DISTRIBUTIONS AND INTRINSIC SHAPES OF DWARF ELLIPTICAL GALAXIES IN THE VIRGO AND FORNAX CLUSTERS [J].

FERGUSON, HC ;

SANDAGE, A .

ASTROPHYSICAL JOURNAL, 1989, 346 (02) :L53-L56