Hα and UV imaging of Low Surface Brightness Galaxies and Extended UV Disks

被引：0
|
作者：
Wyder, Ted K. [1 ]
Treyer, Marie A. [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
来源：
UP2010: HAVE OBSERVATIONS REVEALED A VARIABLE UPPER END OF THE INITIAL MASS FUNCTION | 2011年 / 440卷
关键词：
STAR-FORMATION;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
GALEX observations have revealed UV emission extending far beyond the optical and H-alpha disks of several nearby spiral galaxies, raising the question of possible massive star deficiency, i.e., deviations from the standard 'universal' stellar initial mass function (IMF) at the upper end, in certain low density environments. We have undertaken an Ha imaging survey of low surface brightness galaxies observed by GALEX and with existing HI maps with the aim of investigating the variation of the H alpha/UV ratio with the local density. Here we present preliminary results for 14 such galaxies observed with the Large Format Camera on the Palomar 200 inch telescope using custom narrow band filters.
引用
收藏
页码：235 / 239
页数：5
相关论文
共 50 条
  • [1] On the massive disks in low surface brightness galaxies
    Saburova, A. S.
    ADVANCES IN ASTRONOMY AND SPACE PHYSICS, 2011, 1 (1-2): : 19 - 22
  • [2] Massive disks in low surface brightness galaxies
    Burkhard Fuchs
    Astrophysics and Space Science, 2003, 284 : 719 - 722
  • [3] Massive disks in low surface brightness galaxies
    Fuchs, B
    ASTROPHYSICS AND SPACE SCIENCE, 2003, 284 (02) : 719 - 722
  • [4] Dim matter in the disks of low surface brightness galaxies
    Fuchs, B
    DARK MATTER IN ASTRO- AND PARTICLE PHYSICS, 2002, : 28 - 35
  • [5] GALEX observations of low surface brightness galaxies:: UV color and star formation efficiency
    Boissier, S.
    de Paz, A. Gil
    Boselli, A.
    Buat, V.
    Madore, B.
    Chemin, L.
    Balkowski, C.
    Amram, P.
    Carignan, C.
    van Driel, W.
    ASTROPHYSICAL JOURNAL, 2008, 681 (01): : 244 - 257
  • [6] Resolved Stellar Populations Constituting Extended UV Disks in Nearby Galaxies
    Thilker, D. A.
    Bianchi, L.
    Meurer, G.
    de Paz, A. Gil
    Boissier, S.
    Madore, B. F.
    Ferguson, A.
    Hameed, S.
    Neff, S.
    Martin, C. D.
    Rich, R. M.
    Schiminovich, D.
    Seibert, M.
    Wyder, T.
    FORMATION AND EVOLUTION OF GALAXY DISKS, 2008, 396 : 223 - +
  • [7] Do low surface brightness galaxies have dense disks?
    A. S. Saburova
    Astronomy Reports, 2011, 55 : 409 - 415
  • [8] Do Low Surface Brightness Galaxies Have Dense Disks?
    Saburova, A. S.
    ASTRONOMY REPORTS, 2011, 55 (05) : 409 - 415
  • [9] UV surface brightness of galaxies from the local universe to z ∼ 5
    Lerner, Eric J.
    Falomo, Renato
    Scarpa, Riccardo
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2014, 23 (06):
  • [10] Morphology and dynamics of a few giant galaxies with low surface brightness disks
    Bosma, A
    NEW EXTRAGALACTIC PERSPECTIVES IN THE NEW SOUTH AFRICA, 1996, 209 : 287 - 290
12345