HD 12098 a new far-northern roAp star

Chaubey, U. S.; Martinez, P.; Sagar, R.; Gupta, S. K.; Ashoka, B. N.; Kurtz, D. W.; Girish, V.; Joshi, S.; Seetha, S.

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dc.contributor.author	Girish, V.
dc.contributor.author	Joshi, S.
dc.contributor.author	Seetha, S.
dc.contributor.author	Ashoka, B. N.
dc.contributor.author	Martinez, P.
dc.contributor.author	Chaubey, U. S.
dc.contributor.author	Gupta, S. K.
dc.contributor.author	Kurtz, D. W.
dc.contributor.author	Sagar, R.
dc.date.accessioned	2009-08-07T04:40:09Z
dc.date.available	2009-08-07T04:40:09Z
dc.date.issued	2001
dc.identifier.citation	This article downloded from ADS Free Online Journal	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/232
dc.description.abstract	The rapidly oscillating Ap (roAp) stars are cool, magnetic, chemically peculiar stars which in non-radial p-modes in the period range 4-16 min and have Johnson B amplitudes less than 8 mmag. “The Naini Tal – Cape survey” to search for and study new roAp stars in the northern hemisphere was initiated in 1998 in collaboration between ISAC & UPSO from India and SAAO & UCT from South Afric. HD 12098 is the first roAp star discovered in this survey and also the first far northern hemisphere roAp star. During the initial observations the star showed modulation in the pulsations. The multi-periodicity may be either due ti the excitation of different modes or due to the rotation of the star. In order to resolve these frequencies HD12098 was observed extensively in October 2000. the preliminary results of these observations are presented here.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	basi29-305
dc.subject	Chemically peculiar, roAp, Star:Ap, Star:12098	en_US
dc.title	HD 12098 a new far-northern roAp star	en_US
dc.type	Article	en_US