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Browsing by Subject "Be stars"

Browsing by Subject "Be stars"

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  • The Be star phenomena I. General properties 
    Kogure, T; Hirata, R (Astronomical Society of India, 1982-12)
    General properties of Be stars including their variabilities are considered. The Be stars are first defined as non-supergiant B stars with emission-lines including non-emission shell stars. The percentage fraction of Be/B ...
  • The Be star phenomena II. Spectral formation and structure of envelopes 
    Hirata, Ryuko; Kogure, T (Astronomical Society of India, 1984-06)
  • Cosmic Rays, X-Ray Astronomy and Be Stars: A Career of Research in Astronomy 
    Apparao, K. M. V (Astronomical Society of India, 1997)
    The autobiographical article presents discussions in the topics of particle physics and cosmic rays, He-3 isotopes, crab nebula, antiprotons, neutron stars, cyclotron lines, infrared bursts, gamma ray bursts, white holes ...
  • Decoding the X-Ray Flare from MAXI J0709–159 Using Optical Spectroscopy and Multiepoch Photometry 
    Bhattacharyya, Suman; Mathew, Blesson; Ezhikode, Savithri H; Muneer, S; Selvakumar, G; Maheswar, G; Arun, R; Anilkumar, Hema; Banerjee, Gourav; Kumar, S. P; Kartha, Sreeja S; Paul, KT; Velu, C (IOP Publishing, 2022-07-10)
    We present a follow-up study on the recent detection of two X-ray flaring events by MAXI/Gas Slit Camera observations in soft and hard X-rays from MAXI J0709–159 in the direction of HD 54786 (LY CMa), on 2022 January 25. ...
  • On the Ultraviolet Fluxes of Be-Stars 
    Joshi, S. C; Rautela, B. S (Astronomical Society of Indian, 1987-12)
    The ultraviolet fluxes of a sample of Be and normal B stars taken from ultraviolet bright-star spectrophotometric catalogue and its supplement have been compared with model atmosphere fluxes. An ultraviolet temperature has ...
  • Physics of the phase changes of Be stars 
    Ghosh, K. K (International Astronomical Union, 1994)
    Based on Spectrosopic observations of more than 100 Be stars, we present the reuslts of the phase changes of Be stars.
  • Spectrophotometric observations of B type stars HR 1207 and HR 1770 
    Joshi, S. C; Ojha, D. K (Astronomical Society of India, 1991)
    Two high rotational velocity B type stars HR 1207 and HR 1770 have been observed spectrophotometrically. The energy distribution curves of the stars have been compared with model atmospheres in the ultraviolet and visible ...
  • Spectrophotometric observations of some Be stars 
    Singh, M; Sanwal, B (Astronomical Society of India, 1996)
    Using EG & G spectrograph coupled with reticon array detector and Optical Multichannel Analyser (OMA) at the Cassegrain focus of the 104 cm telescope of the U.P. State Observatory, Naini Tal, several well known bright Be ...
  • Study of emission line stars in young open clusters 
    Mathew, B (Indian Institute of Astrophysics, 2010-01)

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