DSpace JSPUI
DSpace preserves and enables easy and open access to all types of digital content including text, images, moving images, mpegs and data sets
Learn More
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/3796| Title: | Observations of hydrogen deficient binary Upsilon Sagittarii |
| Authors: | Kameswara Rao, N Venugopal, V. R |
| Keywords: | Stellar Spectrophotometry Stellar Envelopes Eclipsing Binary Stars Peculiar Stars Stellar Mass Ejection Ultraviolet Astronomy H Alpha Line Infrared Radiation Interstellar Extinction IUE Sagittarius Constellation |
| Issue Date: | Jun-1985 |
| Publisher: | Indian Academy of Sciences |
| Citation: | Journal of Astrophysics and Astronomy, Vol. 6, No. 2, pp. 101 - 112 |
| Abstract: | The absolute magnitude M(v) of the hydrogen deficient binary Upsilon Sgr has been estimated as -4.8 + or - 1.0 from the distribution of the interstellar reddening, polarization, and interstellar lines of the surrounding stars. From the ANS observations obtained at the time of the secondary eclipse, it appears that the hotter secondary is surrounded by a disk with colors of a B8-B9 star. The lambda 1550 C IV absorption line arising in the stellar wind does not show any change in strength during the secondary minimum. The upper limit to the mass-loss rate from the high temperature wind is estimated as not greater than 5 x 10 to the -7th solar mass/yr from the 2 cm and 6 cm radio observations. |
| URI: | http://hdl.handle.net/2248/3796 |
| ISSN: | 0250-6335 |
| Appears in Collections: | IIAP Publications |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Observations of hydrogen deficient binary Upsilon Sagittarii | 1.11 MB | Adobe PDF |  View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.