UVBY photometry of theta Coronae Borealis during 1994 and 1995

Details UVBY photometry of theta Coronae Borealis during 1994 and 1995 UVBY photometry of theta Coronae Borealis during 1994 and 1995

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...329..579f&link_type=abstract

Astronomy and Astrophysics, v.329, p.579-582 (1998)

Astronomy and Astrophysics

Astrophysics

4

Stars: Emission-Line, Be, Stars: Individual: Theta Crb

Scientific paper

We present differential uvby photometry of theta CrB obtained in 1994 and 1995, complemented by Balmer line spectroscopy. This star has been constant during this period, showing no short term periodic variability with an amplitude greater than 0.005 mag., nor long term variations greater than 0.01 mag. The lack of variability is associated with an inactive phase of the Be star, in which no emision features are present in the spectra. The only remarkable event observed was a fading episode on JD 2449779, with an amplitude of about 0.02 magnitudes in all bandpasses and duration of 0.2 -- 0.3 days. Table 2 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html

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