Search for rapid H-alpha variability studies in Be stars - 28 Eri, X Ophiuchi, 66 Ophiuchi and Pi Aquarii

dc.contributor.author	Ghosh, K. K
dc.date.accessioned	2009-01-07T12:38:25Z
dc.date.available	2009-01-07T12:38:25Z
dc.date.issued	1988-10
dc.identifier.citation	Astronomy and Astrophysics Supplement Series, Vol. 75, No. 2, pp. 261 - 271	en
dc.identifier.issn	0365-0138
dc.identifier.uri	http://hdl.handle.net/2248/4250
dc.description.abstract	In order to search for rapid Hα variability in Be stars, a series of Hα profiles were observed on a time scale of few minutes for 28 Eri, X Oph, 66 Oph and π Aqr. In total, 95 and 54 Hα profiles were obtained for the program Be stars and the standard stars respectively. The theoretical expression of Chalabaev and Maillard (1983) was used to estimate the uncertainty of the Hα equivalent width measurements. It is found that rapid variations of continuum level and equivalent widths of Hα line are absent.	en
dc.language.iso	en	en
dc.publisher	EDP Sciences	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1988A%26AS...75..261G	en
dc.subject	B Stars	en
dc.subject	Early Stars	en
dc.subject	H Alpha Line	en
dc.subject	Variability	en
dc.subject	Emission Spectra	en
dc.subject	Temporal Resolution	en
dc.title	Search for rapid H-alpha variability studies in Be stars - 28 Eri, X Ophiuchi, 66 Ophiuchi and Pi Aquarii	en
dc.type	Article	en