Photometric oscillations at about 200 days in the symbiotic variable PU vulpeculae

Authors
Yoon, TS Honeycutt, RK
Citation
Ts. Yoon et Rk. Honeycutt, Photometric oscillations at about 200 days in the symbiotic variable PU vulpeculae, PUB AST S P, 112(769), 2000, pp. 335-342
Citations number
21
Categorie Soggetti
Space Sciences
Journal title
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN journal
00046280 → ACNP
Volume
112
Issue
769
Year of publication
2000
Pages
335 - 342
Database
ISI
SICI code
0004-6280(200003)112:769<335:POAA2D>2.0.ZU;2-L
Abstract
We show that as PU Vul fell to full quiescence in 1994, following a long ou tburst, the system developed well-defined 0.2 mag oscillations with a chara cteristic period of similar to 211 days. This quasi-periodicity is distinct ly different from the behavior seen during late decline from outburst, wher e weaker photometric variations near 317, 227, and 120 days were seen. Sugg ested causes for this variation are discussed.