Journal article
Optical photometry of the eclipsing Large Magellanic Cloud supersoft source CAL 87
Abstract
We present optical photometry of the eclipsing supersoft source CAL 87. These observations comprise long-term data accumulated as a by-product of the MACHO Project, and high-speed, white-light photometry of a single eclipse. We (i) derive an improved ephemeris of T0 = HJD 245 0111.5144(3) + 0.442 677 14(6)E for the time of minimum light, (ii) find the eclipse structure to be stable over a period of ~4 yr, and (iii) investigate the colour …
Authors
Alcock C; Allsman RA; Alves DR; Axelrod TS; Bennett DP; Charles PA; Cook KH; O'Donoghue D; Freeman KC; Griest K
Journal
Monthly Notices of the Royal Astronomical Society, Vol. 287, No. 3, pp. 699–704
Publisher
Oxford University Press (OUP)
Publication Date
May 21, 1997
DOI
10.1093/mnras/287.3.699
ISSN
0035-8711