THE 1ST H-I-DISCOVERED GALAXY IN THE BOOTES VOID

被引：17

作者：

SZOMORU, A

VANGORKOM, JH

GREGG, M

DEJONG, RS

机构：

[1] COLUMBIA UNIV,DEPT ASTRON,NEW YORK,NY 10027

[2] MT STROMLO & SIDING SPRING OBSERV,WESTON,ACT 2611,AUSTRALIA

来源：

ASTRONOMICAL JOURNAL | 1993年 / 105卷 / 02期

关键词：

D O I：

10.1086/116444

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper we present a detailed study of the first H I-discovered galaxy in the Bootes void, at a distance of 145.5 Mpc. We have observed this galaxy both at low and high resolution in the 21 cm line and optically. The galaxy has an irregular, slowly rotating H i disk. The gas is much more extended than the optical disk, extending out as far as 6.4 times R25. The rotation curve of the galaxy is flat: amplitude and shape can be explained by the presence of a dark halo with a mass of 1.6 times the luminous mass.

引用

页码：464 / 472

页数：9

共 43 条

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Begeman K. G., 1987, THESIS U GRONINGEN N

[2]

BEGEMAN KG, 1989, ASTRON ASTROPHYS, V223, P47

[3] 21-CM LINE STUDIES OF SPIRAL GALAXIES .1. OBSERVATIONS OF THE GALAXIES NGC-5033, NGC-3198, NGC-5055, NGC-2841, AND NGC-7331 [J].