SIMBAD references

1998PASP..110.1315G - Publ. Astron. Soc. Pac., 110, 1315-1317 (1998/November-0)

Spectroscopic monitoring of HD 49798: a hot subdwarf with an X-ray pulsating companion.

GARRISON R.F.

Abstract (from CDS):

The spectrum of the sdO star HD 49798 was monitored for a week in 1995 December with the Helen Sawyer Hogg Telescope of the University of Toronto Southern Observatory. The resolution of the spectra is 1.7 Å.pixel–1. A new spectral type of sdO5.5 has been determined. Some subtle changes may be attributable to the X-ray pulsating companion, but no gross changes were observed on timescales of days, hours, or tens of minutes.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Close - Stars: Early-Type - Stars: Individual: Henry Draper Number: HD 49798 - Stars: Subdwarfs - X-Rays

Simbad objects: 3

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