Spectroscopic evolution of Nova LW Serpentis 1978 during its early decline

dc.contributor.author	Prabhu, T. P
dc.contributor.author	Anupama, G. C
dc.date.accessioned	2008-09-22T11:33:53Z
dc.date.available	2008-09-22T11:33:53Z
dc.date.issued	1987-12
dc.identifier.citation	Journal of Astrophysics and Astronomy , Vol. 8, No. 4, pp. 369 - 387	en
dc.identifier.issn	0250-6335
dc.identifier.uri	http://hdl.handle.net/2248/3756
dc.description.abstract	Spectroscopic observations of Nova LW Serpentis have been obtained in 1978 during its decline from V of about 9.0 to V of about 10.2. It is found that the spectrum and its evolution compare well with those of a typical nova, and that the principal absorption could be identified only in the lines of O I 7774, 8446, and in moderate-resolution observations of H-alpha. Features of the spectral evolution noted include the continuous weakening of the near-infrared triplet of Ca II, the brightness of O I 8446 over O I 7774, and the asymmetric nature of the H-alpha emission line. A kinematical model is proposed for the shell of LW Ser consisting of an equatorial ring and a polar cone on the side facing away from the earth.	en
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1987JApA....8..369P	en
dc.subject	Astronomical spectroscopy	en
dc.subject	Novae	en
dc.subject	Variable stars	en
dc.subject	H alpha line	en
dc.subject	Line spectra	en
dc.subject	Near infrared radiation	en
dc.subject	Oxygen spectra	en
dc.title	Spectroscopic evolution of Nova LW Serpentis 1978 during its early decline	en
dc.type	Article	en