Zobrazeno 1 - 10
of 35
pro vyhledávání: '"V. S. Niemela"'
Publikováno v:
Symposium - International Astronomical Union. 193:26-37
Observations of WR stars in binary systems are discussed, emphasizing constraints on our knowledge of the binary frequency of WR stars, and of WR stars as a distinctive class of objects. Radial velocity orbits of newly discovered binaries, e.g., WR 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f76edccc0fdcceafd6fb0acc833c48e
https://doi.org/10.1017/s0074180900204890
https://doi.org/10.1017/s0074180900204890
Autor:
N. I. Morrell, V. S. Niemela
Publikováno v:
Symposium - International Astronomical Union. 190:181-186
We discuss the present status of knowledge for massive binary stars in the Magellanic Clouds. New data for known binaries, and radial velocity orbits for new binaries are reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dca1fd2b8b0b6e866e023a3df0d55bc
https://doi.org/10.1017/s0074180900117814
https://doi.org/10.1017/s0074180900117814
Publikováno v:
Symposium - International Astronomical Union. 163:406-410
The Magellanic Clouds provide an ideal laboratory to study the properties of Wolf-Rayet stars. In particular, the 25 WC/WO stars that they contain are nearly all of the same sub-class (21 WC4, one WC5, one WC6 and one WO in the Large Magellanic Cloud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::575c4724cdf1489e8436de980ce4fb7f
https://doi.org/10.1017/s0074180900202374
https://doi.org/10.1017/s0074180900202374
Publikováno v:
Symposium - International Astronomical Union. 151:505-508
We present linear polarization observations of two binary systems with early Of type components, namely Sk-67°105 in the Large Magellanic Cloud, and LSS 3074 in our Galaxy. Both binaries show phase-locked polarization variations, from which we deter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a688e139ad8c4b2e627e7888fceba1ea
https://doi.org/10.1017/s0074180900122831
https://doi.org/10.1017/s0074180900122831
% context About 2500 planetary nebulae are known in our Galaxy but only 224 have central stars with reported spectral types in the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker et al. 1992; Acker et al. 1996) % aims We have started an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9fb6e1b182848bf69eca843a5b0f1cf
Publikováno v:
Symposium - International Astronomical Union. 163:251-253
The bright star Sk—67°18 (Brey 5) in the Large Magellanic Cloud (LMC) contains an eclipsing binary system. Our radial velocity study reveals that the orbital period is almost exactly two days. The spectra also show that the star's primary componen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ccb7cda67225f1a92b255613b522d7f
https://doi.org/10.1017/s0074180900202076
https://doi.org/10.1017/s0074180900202076
Publikováno v:
Unsolved Problems of the Milky Way ISBN: 9780792340409
The interaction of strong stellar winds with the interstellar medium creates large cavities or interstellar bubbles surrounded by expanding outer shells. 21-cm line (HI) observations have revealed the presence of such neutral gas bubbles around sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::505066745f56c689f15bfb0b2482753c
https://doi.org/10.1007/978-94-009-1687-6_102
https://doi.org/10.1007/978-94-009-1687-6_102
Autor:
V. S. Niemela
Publikováno v:
Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution ISBN: 9780792331841
Revised orbits are presented for the double-lined binary WR+O systems HD 63099 (WR9) and HDE 320102 (WR97). The orbit derived for WR9 from OVI emission and HeII absorptions is considerably different from that previously published based on the CIVλ46
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a807f896c194704e2732251e3d2348ec
https://doi.org/10.1007/978-94-011-0205-6_50
https://doi.org/10.1007/978-94-011-0205-6_50
Publikováno v:
Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution ISBN: 9780792331841
The bright star Sk—67°18 (Brey 5) in the Large Magellanic Cloud (LMC) contains an eclipsing binary system. Our radial velocity study reveals that the orbital period is almost exactly two days. The spectra also show that the star’s primary compon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51743760be2ca26beefafab6582f3046
https://doi.org/10.1007/978-94-011-0205-6_59
https://doi.org/10.1007/978-94-011-0205-6_59
Publikováno v:
Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution ISBN: 9780792331841
The Magellanic Clouds provide an ideal laboratory to study the properties of Wolf-Rayet stars. In particular, the 25 WC/WO stars that they contain are nearly all of the same sub-class (21 WC4, one WC5, one WC6 and one WO in the Large Magellanic Cloud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fe63822ffcf655f64807115ac805c7c
https://doi.org/10.1007/978-94-011-0205-6_89
https://doi.org/10.1007/978-94-011-0205-6_89