XX Cam-the inactive R CrB star

Kameswara Rao, N. ; Ashok, N. M. ; Kulkarni, P. V. (1980) XX Cam-the inactive R CrB star Journal of Astrophysics and Astronomy, 1 (1). pp. 71-78. ISSN 0250-6335

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Official URL: http://www.ias.ac.in/jarch/jaa/1/71-78.pdf

Related URL: http://dx.doi.org/10.1007/BF02727951


Infrared observations obtained six years apart of the R CrB type star XX Cam do not show any infrared excess, unlike all the other members of the class. The observed colours match a 7000 K black body energy distribution quite well. From the year 1898 till todate, apparently XX Cam has undergone only one visual light minimum in 1940. The lack of infrared excess, the abundance peculiarities and further lack of small amplitude light variations with periods of few tens of days, which are characteristic of R CrB type stars, are discussed in terms of theoretical pulsation models of helium stars.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:R CrB Star; Infrared Excess
ID Code:17020
Deposited On:16 Nov 2010 13:08
Last Modified:17 May 2016 01:43

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