VLA observations of extreme hydrogen deficient stars

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3785

Title:	VLA observations of extreme hydrogen deficient stars
Authors:	Kameswara Rao, N Venugopal, V. R Patnaik, A
Keywords:	Hydrogen Radio Sources (Astronomy) Stellar Mass Ejection Stellar Spectra Astronomical Catalogs Centimeter Waves Flux Density Mass Flow Rate R Coronae Borealis Stars Very Large Array (Vla) Very Long Base Interferometry
Issue Date:	Sep-1985
Publisher:	Indian Academy of Sciences
Citation:	Journal of Astrophysics and Astronomy, Vol. 6, No. 3, pp. 153 - 157
Abstract:	Observations at 2 and 6 cm have been obtained for six hydrogen-deficient stars R CrB, HD 160641, BD -9 deg 4395, V 348 Sgr, MV Sgr, and Upsilon Sgr by means of the National Radio Astronomy Observatory's Very Large Array (VLA). Upper limits to the flux density were used to estimate upper limits to the mass loss rates. The upper limits to the rate of mass loss obtained for HD 160641 and BD -9 deg 4395 objects are in agreement with the upper limits of 1 x 10 to the -7.2 and 1 x 10 to the -7.7 solar masses/yr, respectively, determined by Hamann et al. (1982) from ultraviolet spectral lines.
URI:	http://hdl.handle.net/2248/3785
ISSN:	0250-6335
Appears in Collections:	IIAP Publications

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