Cookies

We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Department of Physics

Staff profile

Publication details for Prof Martin Ward

Ward, M. J., Allen, D. A., Smith, M. G. & Wright, A. E. (1979). 2A 0311-227. International Astronomical Union Circular 3335: 1.

Author(s) from Durham

Abstract

Infrared observations of this x-ray emitting, AM Her-like star
(IAUC 3326) were made with the Anglo-Australian Telescope by M. J.
Ward, Institute of Astronomy, Cambridge; and D. A. Allen, M. G.
Smith and A. E. Wright, Anglo-Australian Observatory. Flickering
of +/- 0.2 magnitude was seen at J, H, and K, as in AM Her (Jameson
et al. 1978, Nature 271, 334). Relative to the quiescent level, a
minimum 0.8 magnitude deep was seen every 81.0 +/- 0.1 min (cf. IAUC
3324), followed within ~ 5 min by flaring up to 0.8 magnitude. The
epoch of the best observed minimum was 1979 Mar. 12d10h55m +/- 1m UT.
Similar variations were seen in the visible on the TV monitor. The
continuum was much bluer than that of AM Her, with J-K ~ +0.2.