Photometric and Spectral Studies of the Group of Galactic Wolf-Rayet Stars. I. WN Sequence

被引：1
|
作者：
Kondratyeva, L. N. [1 ]
Reva, I. V. [1 ]
Denissyuk, E. K. [1 ]
Shomshekova, S. A. [1 ]
Aimanova, G. K. [1 ]
机构：
[1] VG Fesenkov Astrophys Inst AFIF, Alma Ata, Kazakhstan
来源：
ASTROPHYSICS | 2023年 / 66卷 / 04期
关键词：
variable stars; Wolf-Rayet (W-R) stars; photometry; spectrophotometry; COROTATING INTERACTION REGIONS; WIND; VARIABILITY; MASSES; CEPHEI;
D O I：
10.1007/s10511-024-09805-6
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Photometric and spectral observations of 11 Wolf-Rayet stars of the WN sequence were made at the AFIF during 2021-2022. Estimates of the brightness of objects in BVRc filters and the absolute fluxes of radiation in emission lines in this group are obtained on the basis of these observations. Changes in the brightness over a range of 0m.1-0m.15 are recorded for the stars WR 120, WR 151, and WR 152 in the WR I stars. Changes in the emission fluxes are detected in the spectra of several objects: WR 120, WR 128, and WR 145.
引用
收藏
页码：485 / 502
页数：18
相关论文
共 50 条
  • [31] LUMINOSITIES AND GALACTIC DISTRIBUTION OF WOLF-RAYET STARS
    SMITH, LF
    ASTRONOMICAL JOURNAL, 1967, 72 (03): : 320 - &
  • [32] The neon abundance of Galactic Wolf-Rayet stars
    Smith, JDT
    Houck, JR
    ASTROPHYSICAL JOURNAL, 2005, 622 (02): : 1044 - 1051
  • [33] The VIIth catalogue of galactic Wolf-Rayet stars
    van der Hucht, KA
    NEW ASTRONOMY REVIEWS, 2001, 45 (03) : 135 - 232
  • [34] A NEAR-INFRARED SURVEY OF THE INNER GALACTIC PLANE FOR WOLF-RAYET STARS. I. METHODS AND FIRST RESULTS: 41 NEW WR STARS
    Shara, Michael M.
    Moffat, Anthony F. J.
    Gerke, Jill
    Zurek, David
    Stanonik, Kathryn
    Doyon, Rene
    Artigau, Etienne
    Drissen, Laurent
    Villar-Sbaffi, Alfredo
    ASTRONOMICAL JOURNAL, 2009, 138 (02): : 402 - 420
  • [35] SPECTRAL ANALYSES OF THE GALACTIC WOLF-RAYET STARS - HYDROGEN-HELIUM ABUNDANCES AND IMPROVED STELLAR PARAMETERS FOR THE WN CLASS
    HAMANN, WR
    KOESTERKE, L
    WESSOLOWSKI, U
    ASTRONOMY & ASTROPHYSICS, 1995, 299 (01) : 151 - 162
  • [36] Potsdam Wolf-Rayet model atmosphere grids for WN stars
    Todt, H.
    Sander, A.
    Hainich, R.
    Hamann, W-R
    Quade, M.
    Shenar, T.
    ASTRONOMY & ASTROPHYSICS, 2015, 579
  • [37] On the nature of the spectral and photometric period variability of apparently single Wolf-Rayet stars
    Morel, T
    OBSERVATORY, 1999, 119 (1153): : 345 - 346
  • [38] The nitrogen spectra of Wolf-Rayet stars - A grid of models and its application to the Galactic WN sample
    Hamann, WR
    Koesterke, L
    ASTRONOMY & ASTROPHYSICS, 1998, 333 (01) : 251 - 263
  • [39] RADIO-EMISSION FROM GALACTIC WOLF-RAYET STARS AND THE STRUCTURE OF WOLF-RAYET WINDS
    ABBOTT, DC
    BIEGING, JH
    CHURCHWELL, E
    TORRES, AV
    ASTROPHYSICAL JOURNAL, 1986, 303 (01): : 239 - 261
  • [40] Galactic planetary nebulae with Wolf-Rayet nuclei - I. Objects with [WC]-early type stars
    Pena, M
    Stasinska, G
    Esteban, C
    Koesterke, L
    Medina, S
    Kingsburgh, R
    ASTRONOMY & ASTROPHYSICS, 1998, 337 (03): : 866 - 882
12345