IIA Institutional Repository

Browsing IIAP Publications by Subject "circumstellar matter"

Browsing IIAP Publications by Subject "circumstellar matter"

Sort by: Order: Results:

  • Accurate Estimates of Circumstellar and Interstellar Lines of Quadruply Ionized Vanadium Using the Coupled Cluster Approach 
    Dixit, G; Sahoo, B. K; Deshmukh, P. C; Chaudhuri, R. K; Majumder, S (University of Chicago Press, 2007-10)
    Accurate ab initio calculations have been carried out to study the valence electron removal energies and oscillator strengths of astrophysically important electromagnetic transitions of quadruply ionized vanadium, V4+. ...
  • The double dust envelopes of R coronae borealis stars 
    Montiel, Edward J; Clayton, G. C; Sugerman, B. E. K; Evans, A; Garcia-Hernandez, D. A; Kameswara Rao, N; Matsuura, M; Tisserand, P (IOP Publishing, 2018-10)
    The study of extended, cold dust envelopes surrounding R Coronae Borealis (RCB) stars began with their discovery by the Infrared Astronomical Satellite. RCB stars are carbon-rich supergiants characterized by their extreme ...
  • On the long-cycle variability of the Algol OGLE-LMC-DPV-065 and its stellar, orbital, and disc parameters 
    Mennickent, R. E; Cabezas, M; Djurasevic, G; Rivinius, T; Hadrava, P; Poleski, R; Soszynski, I; Celedon, L; Astudillo-Defru, N; Raj, A; Fernandez-Trincado, J. G; Schmidtobreick, L; Tappert, C; Neustroev, V; Porritt, I (Oxford University Press on behalf of the Royal Astronomical Society, 2019-08)
    OGLE-LMC-DPV-065 is an interacting binary whose double-hump long photometric cycle remains hitherto unexplained. We analyze photometric time series available in archive data sets spanning 124 yr and present the analysis ...
  • Optical spectroscopy of Galactic field classical Be stars 
    Banerjee, G; Mathew, B; Paul, K. T; Subramaniam, A; Bhattacharyya, S; Anusha, R (Oxford University Press on behalf of the Royal Astronomical Society, 2021-01)
    In this study, we analyse the emission lines of different species present in 118 Galactic field classical Be stars in the wavelength range of 3800–9000 Å. We re-estimated the extinction parameter (AV) for our sample stars ...

Search DSpace


Browse

My Account