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
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
  • [21] Visual Orbits of Wolf-Rayet Stars. I. The Orbit of the Dust-producing Wolf-Rayet Binary WR 137 Measured with the CHARA Array
    Richardson, Noel D.
    Schaefer, Gail H.
    Eldridge, Jan J.
    Spejcher, Rebecca
    Holdsworth, Amanda
    Lau, Ryan M.
    Monnier, John D.
    Moffat, Anthony F. J.
    Weigelt, Gerd
    Williams, Peredur M.
    Kraus, Stefan
    Le Bouquin, Jean-Baptiste
    Anugu, Narsireddy
    Chhabra, Sorabh
    Codron, Isabelle
    Ennis, Jacob
    Gardner, Tyler
    Gutierrez, Mayra
    Ibrahim, Noura
    Labdon, Aaron
    Lanthermann, Cyprien
    Setterholm, Benjamin R.
    ASTROPHYSICAL JOURNAL, 2024, 977 (01):
  • [22] New Galactic Wolf-Rayet stars, and candidates (research note) -: An annex to the VIIth catalogue of Galactic Wolf-Rayet stars
    van der Hucht, K. A.
    ASTRONOMY & ASTROPHYSICS, 2006, 458 (02): : 453 - 459
  • [23] A mid-infrared spectral survey of galactic wolf-rayet stars
    Smith, JDT
    Houck, JR
    ASTRONOMICAL JOURNAL, 2001, 121 (04): : 2115 - 2123
  • [24] Populations of WC and WN stars in Wolf-Rayet galaxies
    Schaerer, D
    Contini, T
    Kunth, D
    ASTRONOMY & ASTROPHYSICS, 1999, 341 (02) : 399 - 417
  • [25] Wolf-Rayet stars of the carbon sequence
    Barniske, A.
    Hamann, W. -R.
    Graefener, G.
    STELLAR EVOLUTION AT LOW METALLICITY: MASS LOSS, EXPLOSIONS, COSMOLOGY, 2006, 353 : 243 - +
  • [26] Wolf-Rayet stars in active galactic nuclei
    Williams, RJR
    Dyson, JE
    Perry, JJ
    WOLF-RAYET PHENOMENA IN MASSIVE STARS AND STARBURST GALAXIES, 1999, (193): : 760 - 761
  • [27] The Discovery of Three Galactic Wolf-Rayet Stars
    Marin, Laurella C.
    Massey, Philip
    Skiff, Brian A.
    Farrell, Kennedy A.
    ASTRONOMICAL JOURNAL, 2024, 168 (04):
  • [28] WOLF-RAYET STARS .I. CONTINUOUS ENERGY DISTRIBUTION
    KUHI, LV
    ASTROPHYSICAL JOURNAL, 1966, 143 (03): : 753 - &
  • [29] SPECTRAL CLASSIFICATION OF WOLF-RAYET STARS
    HILTNER, WA
    SCHILD, RE
    ASTROPHYSICAL JOURNAL, 1966, 143 (03): : 770 - &
  • [30] On the spatial distribution of the galactic Wolf-Rayet stars
    Alfaro, EJ
    Cerviño, M
    Rubiño, JA
    Cabrera-Caño, J
    Vílchez, JM
    WOLF-RAYET PHENOMENA IN MASSIVE STARS AND STARBURST GALAXIES, 1999, (193): : 56 - 57