The stellar oxygen abundance gradient in M33

被引：30
|
作者：
Monteverde, MI
Herrero, A
Lennon, DJ
Kudritzki, RP
机构：
[1] UNIV STERNWARTE,D-81679 MUNICH,GERMANY
[2] MAX PLANCK INST ASTROPHYS,D-85740 GARCHING,GERMANY
来源：
ASTROPHYSICAL JOURNAL | 1997年 / 474卷 / 02期
关键词：
galaxies; abundances; individual; (M33); stars; early-type; supergiants;
D O I：
10.1086/310441
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report here first results concerning stellar oxygen abundances in M33. Non-LTE model atmosphere and non-LTE line formation calculations were used to determine the oxygen abundance of B-type supergiants. By choosing stars located at different projected radial distances to the center of M33, we are able to determine the oxygen abundance gradient, for which we obtain a value of -0.16 +/- 0.06 dex kpc(-1). This is the first time that the oxygen stellar abundance gradient has been determined in a spiral galaxy other than the Milky Way.
引用
收藏
页码：L107 / L110
页数：4
相关论文
共 50 条
  • [41] THE NUCLEUS OF M33
    KORMENDY, J
    MCCLURE, RD
    ASTRONOMICAL JOURNAL, 1993, 105 (05): : 1793 - &
  • [42] MASS OF M33
    LOHMANN, W
    ASTROPHYSICS AND SPACE SCIENCE, 1974, 29 (01) : 61 - 62
  • [43] THE BULGE OF M33
    MINNITI, D
    OLSZEWSKI, EW
    RIEKE, M
    ASTROPHYSICAL JOURNAL, 1993, 410 (02): : L79 - L82
  • [44] The M33 Synoptic Stellar Survey. II. Mira Variables
    Yuan, Wenlong
    He, Shiyuan
    Macri, Lucas M.
    Long, James
    Huang, Jianhua Z.
    ASTRONOMICAL JOURNAL, 2017, 153 (04):
  • [45] Dust Emission as a Function of Stellar Population Age in the Nearby Galaxy M33
    Mallory, Kate
    Calzetti, Daniela
    Lin, Zesen
    ASTROPHYSICAL JOURNAL, 2022, 933 (02):
  • [46] YOUNG STARS AT THE EDGE: STELLAR CLUSTERING IN THE OUTER REGIONS OF THE M33 DISK
    Davidge, T. J.
    Puzia, T. H.
    McConnachie, A. W.
    ASTROPHYSICAL JOURNAL LETTERS, 2011, 728 (01)
  • [47] The building up of the disk galaxy M33 and the evolution of the metallicity gradient
    Magrini, L.
    Corbelli, E.
    Galli, D.
    ASTRONOMY & ASTROPHYSICS, 2007, 470 (03) : 843 - U16
  • [48] Finding beat Cepheids in M33 and their use in measuring the metallicity gradient
    Short, Lawrence
    Bersier, David
    WIDE-FIELD VARIABILITY SURVEYS: A 21ST CENTURY PERSPECTIVE, 2017, 152
  • [49] The TREX Survey: Kinematical Complexity Throughout M33's Stellar Disk and Evidence for a Stellar Halo
    Gilbert, Karoline M.
    Quirk, Amanda C. N.
    Guhathakurta, Puragra
    Tollerud, Erik
    Wojno, Jennifer
    Dalcanton, Julianne J.
    Durbin, Meredith J.
    Seth, Anil
    Williams, Benjamin F.
    Fung, Justin T.
    Tangirala, Pujita
    Yusufali, Ibrahim
    ASTROPHYSICAL JOURNAL, 2022, 924 (02):
  • [50] PAndAS IN THE MIST: THE STELLAR AND GASEOUS MASS WITHIN THE HALOS OF M31 AND M33
    Lewis, Geraint F.
    Braun, Robert
    McConnachie, Alan W.
    Irwin, Michael J.
    Ibata, Rodrigo A.
    Chapman, Scott C.
    Ferguson, Annette M. N.
    Martin, Nicolas F.
    Fardal, Mark
    Dubinski, John
    Widrow, Larry
    Mackey, A. Dougal
    Babul, Arif
    Tanvir, Nial R.
    Rich, Michael
    ASTROPHYSICAL JOURNAL, 2013, 763 (01):
12345