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Home -> Astronomy News -> Stars/galaxy News -> VSX J003909.7+611233
Post Info TOPIC: VSX J003909.7+611233
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RE: VSX J003909.7+611233
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Title: VSX J003909.7+611233: a new Slowly Pulsating B star (SPB) in Cassiopeia?
Authors: David Boyd, Christopher Lloyd, Pierre dePonthiere, Mack Julian, Robert Koff, Tom Krajci, Jeremy Shears, Bart Staels
(Version v2)

We report the discovery of a new 13th magnitude variable in Cassiopeia close to the variable KP Cas. Analysis of 6 days of intensive photometry shows a regular, near sinusoidal modulation with an amplitude of 0.024 magnitudes and a period of 0.43815(31) d. Although its colour indicates a spectral type around F0 the star probably suffers up to 2 - 2.5 magnitudes of extinction so could be an A- or B-type star. Given the period, the low amplitude, the shape of the light curve and the probable spectral type we consider it most likely to be a slowly pulsating B-type (SPB) star. The variable has been registered in the International Variable Star Index with the identifier VSX J003909.7+611233.

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Blobrana


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Posts: 131433
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Title: VSX J003909.7+611233: a new gamma Doradus variable in Cassiopeiae?
Authors: David Boyd, Christopher Lloyd, Pierre dePonthiere, Mack Julian, Robert Koff, Tom Krajci, Jeremy Shears, Bart Staels

We report the discovery of a new 13th magnitude variable in Cassiopeia close to the variable KP Cas. Analysis of 6 days of intensive photometry shows regular modulation with amplitude 0.024 mag and period 0.43815(31) d. Assuming little or no reddening, its colour indicates a spectral type around F0. On the available evidence, we consider it most likely to be a new gamma Doradus star. The variable has been registered in the International Variable Star Index with the identifier VSX J003909.7+611233.

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