Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007pasj...59l..35t&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.59, No.4, pp.L35--L39
Astronomy and Astrophysics
Astronomy
6
Stars: Atmosphere, Stars: Be, Stars: Emission Line, Stars: Individual: 28 Tau, Stars: Photometry, Stars: Spectroscopy
Scientific paper
Recent photometric and spectroscopic observations of Pleione are reported. Pleione showed brightness declines in both the B and V bands by ˜ 0.m25 between 2006 January and 2007 March. Significant decreases in the strengths and widths of the long-lived emission components in Hα and Hβ were observed during this period, while additional outer double-emission components appeared in these lines. Many metallic shell lines strengthened during the observation period, being accompanied by central quasi-emission components. We interpret these spectral changes in terms of a double disk: the progressive decline of a misaligned old disk in due course of precession and the formation and growth of a new disk in the star's equatorial plane.
Hirata Ryuko
Kambe Eiji
Katahira Jun-Ichi
Naito Hiroyuki
Narusawa Shin-ya
No associations
LandOfFree
Dramatic Spectral and Photometric Changes of Pleione (28 Tau) between 2005 November and 2007 April does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dramatic Spectral and Photometric Changes of Pleione (28 Tau) between 2005 November and 2007 April, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dramatic Spectral and Photometric Changes of Pleione (28 Tau) between 2005 November and 2007 April will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1797596