SIMBAD references

1999A&A...349..532S - Astronomy and Astrophysics, volume 349, 532-536 (1999/9-2)

Light variations of the blue hypergiants HD 168607 and HD 168625 (1973-1999).

STERKEN C., ARENTOFT T., DUERBECK H.W. and BROGT E.

Abstract (from CDS):

Stroemgren differential photometry of HD 168607 and HD 168625 collected during the previous 27 years is analysed. We bring to an end our quarter of a century monitoring of these objects and conclude that HD1 68607 shows typical variability of an uneventful LBV, whereas HD 168625 remains to be classified as a variable hypergiant, or a marginally-dormant LBV. The long-term light- and colour behaviour of HD 168607 indicates the possible presence of a very slowly-developing S Dor phase - that is, a bright phase that coincides with redder colours. Besides the α Cygni-type microvariability, no other signs of ultrashort-periodic variability has been observed.

Abstract Copyright:

Journal keyword(s): stars: early-type - stars: individual: HD 168607 - stars: individual: HD 168625 - stars: oscillations - stars: variables: general

Simbad objects: 10

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2021.04.16-14:32:02

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