Substructure in the Fornax dSph Galaxy:: A possible merger remnant

被引：0
|
作者：
Coleman, M [1 ]
Da Costa, GS [1 ]
Martínez-Delgado, D [1 ]
Bland-Hawthorn, J [1 ]
机构：
[1] Australian Natl Univ, Inst Adv Studies, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia
来源：
Satellites and Tidal Streams | 2004年 / 327卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present initial results from a wide field photometric survey of the Fornax dwarf spheroidal (dSph) galaxy, concentrating on a small overdensity of stars located approximately 15' (500 pc in projection) from the centre of Fornax. An analysis of two sets of CCD data in four bands implies the clump has a luminosity of similar to 10(3) M-circle dot and is similar to 2 Cyr old. Our preferred interpretation is that the overdensity represents a merger between Fornax and a smaller, gas-rich system that occurred approximately 2 Gyr ago.
引用
收藏
页码：173 / 177
页数：5
相关论文
共 50 条
  • [41] The distance to the Fornax dwarf spheroidal galaxy
    Rizzi, L.
    Held, E. V.
    Saviane, I.
    Tully, R. B.
    Gullieuszik, M.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 380 (03) : 1255 - 1260
  • [42] Is Fornax 4 the nuclear star cluster of the Fornax dwarf spheroidal galaxy?
    Martocchia, S.
    Dalessandro, E.
    Salaris, M.
    Larsen, S.
    Rejkuba, M.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 495 (04) : 4518 - 4528
  • [43] Variable stars in the Fornax dwarf galaxy
    Bersier, D
    Wood, PR
    [J]. ASTRONOMICAL JOURNAL, 2002, 123 (02): : 840 - 847
  • [44] Intergalactic stars in the Fornax galaxy cluster
    Theuns, T
    Warren, SJ
    [J]. DARK AND VISIBLE MATTER IN GALAXIES, 1997, 117 : 564 - 567
  • [45] A deep survey of the Fornax dSph. I. Star formation history
    Coleman, Matthew G.
    de Jong, Jelte T. A.
    [J]. ASTROPHYSICAL JOURNAL, 2008, 685 (02): : 933 - 946
  • [46] PLANETARY NEBULA IN FORNAX DWARF GALAXY
    DANZIGER, IJ
    DOPITA, MA
    HAWARDEN, TG
    WEBSTER, BL
    [J]. ASTROPHYSICAL JOURNAL, 1978, 220 (02): : 458 - &
  • [47] GALAXY POPULATIONS IN THE FORNAX AND VIRGO CLUSTERS
    FERGUSON, HC
    [J]. ASTROPHYSICS AND SPACE SCIENCE, 1989, 157 (1-2) : 227 - 233
  • [48] Constraints on mass loss and self-enrichment scenarios for the globular clusters of the Fornax dSph
    Larsen, S. S.
    Strader, J.
    Brodie, J. P.
    [J]. ASTRONOMY & ASTROPHYSICS, 2012, 544
  • [49] DYNAMICS OF THE FORNAX DWARF SPHEROIDAL GALAXY
    PALTOGLOU, G
    FREEMAN, KC
    [J]. IAU SYMPOSIA, 1987, (127): : 447 - 448
  • [50] Four and one more: The formation history and total mass of globular clusters in the Fornax dSph
    de Boer, T. J. L.
    Fraser, M.
    [J]. ASTRONOMY & ASTROPHYSICS, 2016, 590
12345