Search for rapid V/R variability in Eta CEN

dc.contributor.author	Ghosh, K. K
dc.date.accessioned	2009-01-07T12:31:14Z
dc.date.available	2009-01-07T12:31:14Z
dc.date.issued	1989-10
dc.identifier.citation	Monthly Notices Royal Astronomical Society, Vol. 240, pp. 637 - 645	en
dc.identifier.issn	0035-8711
dc.identifier.uri	http://hdl.handle.net/2248/4245
dc.description.abstract	In order to search for rapid V/R variability in the Be star, Eta Cen, a series of H-alpha profiles of this star were observed on three nights between May 28 and June 3, 1986. A method of estimating the standard deviation value (sigma) of V/R ratio measurements is described. From the results of the H-alpha profiles, it was found that few profiles displayed rapid V/R variations which were beyond the 3-sigma limit, with no rapid variations of equivalent widths and peak separations of the two emission components. It was also found that rapid V/R and radial velocity variations of the H-alpha profiles were in close agreement. Low-amplitude night-to-night variations of the V/R ratio were also present in Eta Cen during the interval of the observations.	en
dc.language.iso	en	en
dc.publisher	Royal Astronomical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1989MNRAS.240..637G	en
dc.subject	B Stars	en
dc.subject	H Alpha Line	en
dc.subject	Variable Stars	en
dc.subject	Emission Spectra	en
dc.subject	Error Analysis	en
dc.subject	Radial Velocity	en
dc.subject	Standard Deviation	en
dc.title	Search for rapid V/R variability in Eta CEN	en
dc.type	Article	en