Periodic variations in PHL 227

Details Periodic variations in PHL 227 Periodic variations in PHL 227

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..231h&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Jan. 1, 1987, p. 231-236.

Physics

Optics

10

Light (Visible Radiation), Light Curve, Radial Velocity, Stellar Spectrophotometry, Ultraviolet Spectra, Cassegrain Optics, Signal To Noise Ratios

Scientific paper

Spectroscopic and photometric observations of the recently discovered UX UMa star PHL 227 are presented. An orbital period of 0.1356±0.0006 day results from the radial velocities of the Hα and Hβ emission lines. The light curve shows pronounced variations presumably of irregular nature. Coherent rapid oscillations with a period of 19.6 s were detected.

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