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- Title
The Candidate Protoplanetary Object IRAS 22223+4327 Is a Pulsating Variable Star.
- Authors
Arkhipova, V. P.; Noskova, R. I.; Ikonnikova, N. P.; Komissarova, G. V.
- Abstract
We present our photoelectric UBV observations of the candidate protoplanetary object IRAS 22223+4327 during four visibility seasons. The star exhibited periodic brightness variations with the maximum amplitudes ▵U = 0[SUPm,SUB.] 23, ▵B = [SUPm,SUB.]18, and ▵V = [SUPm,SUB.]12 and a time scale of about 90 days, which is equal to the period derived by other authors from radial velocities. During these brightness variations, a correlation is observed between the (B - V) color index and brightness, which is characteristic of pulsations. We estimated the star's spectral type from our photometric data to be F8 I. We detected a "deficit" of light in the U band. The star's mean brightness and its spectral type appear to have not changed in the past half a century.
- Subjects
UBV system (Astronomy); PHOTOELECTRIC measurements; ASTROPHYSICS; PULSATING stars
- Publication
Astronomy Letters, 2003, Vol 29, Issue 7, p480
- ISSN
1063-7737
- Publication type
Article
- DOI
10.1134/1.1589865