Ultraviolet variability of HD 62001 – The central star of the missing nebula V-V 1-7 |
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Authors: | N Kameswara Rao D P Gilra |
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Institution: | (1) Indian Institute of Astrophysics, 560034 Bangalore;(2) Kapteyn Astronomical Laboratory, Groningen, The Netherlands |
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Abstract: | IUE observations of HD 62001 do not confirm the ultraviolet variability of 0.15 mag seen from the ANS observations. These
intriguing variations in ANS observations seem to be caused by a nearby (∼ 70 arcsec away) B star getting in and out of the
field of view of the telescope, which had a jitter of 20 arcsec. There seems to be no evidence for the presence of a hot companion,
either from the energy distribution or from UV variability. However, visual light variations are present. This, coupled with
the radial velocity variations, indicates a binary nature probably of Algol type.
Based on observations obtained with IUE satellite at the Villafranca Satellite Tracking Station of the European Space Agency. |
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Keywords: | variable stars photometry ultraviolet spectroscopy |
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