High-resolution rotation curves of low surface brightness galaxies

被引:407
作者
de Blok, WJG
Bosma, A
机构
[1] CSIRO, ATNF, Epping, NSW 1710, Australia
[2] Observ Marseille, F-13248 Marseille 4, France
关键词
galaxies : structure; galaxies : kinematics and dynamics; galaxies : halos;
D O I
10.1051/0004-6361:20020080
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present high-resolution rotation curves of a sample of 26 low surface brightness galaxies. From these curves we derive mass distributions using a variety of assumptions for the stellar mass-to-light ratio. We show that the predictions of current Cold Dark Matter models for the density profiles of dark matter halos are inconsistent with the observed curves. The latter indicate a core-dominated structure, rather than the theoretically preferred cuspy structure.
引用
收藏
页码:816 / 846
页数:31
相关论文
共 50 条
[1]  
Begeman K. G., 1987, THESIS U GRONINGEN
[2]   Stellar mass-to-light ratios and the Tully-Fisher relation [J].
Bell, EF ;
de Jong, RS .
ASTROPHYSICAL JOURNAL, 2001, 550 (01) :212-229
[3]   Accurate determination of the mass distribution in spiral galaxies. II. testing the shape of dark halos [J].
Blais-Ouellette, S ;
Amram, P ;
Carignan, C .
ASTRONOMICAL JOURNAL, 2001, 121 (04) :1952-1964
[4]   The density profile of the dark matter halo of NGC 4605 [J].
Bolatto, AD ;
Simon, JD ;
Leroy, A ;
Blitz, L .
ASTROPHYSICAL JOURNAL, 2002, 565 (01) :238-243
[5]   The dark matter distribution in disc galaxies [J].
Borriello, A ;
Salucci, P .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 323 (02) :285-292
[6]  
Bosma A, 1999, ASTR SOC P, V182, P339
[7]  
BOSMA A, 1992, APJ, V400, pL23
[8]  
Bosma A., 1978, PhD thesis
[9]  
Bottema R, 1997, ASTRON ASTROPHYS, V328, P517
[10]  
BROEILS AH, 1992, ASTRON ASTROPHYS, V256, P19