Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aj....135.1681t&link_type=abstract
The Astronomical Journal, Volume 135, Issue 5, pp. 1681-1691 (2008).
Astronomy and Astrophysics
Astronomy
1
Stars: Agb And Post-Agb, Stars: Evolution
Scientific paper
The light variations of 11 selected single-peaked OH/IR stars have been monitored in the JHK bands from 2000 to 2005. They are found to have periods of variation between 200 and 700 days, located at the short-period end of normal OH/IR stars. Their amplitudes of variation in the K band are less than 2 mag, which is relatively small and consistent with relatively short periods. These stars exist between the Miras and OH/IR stars from the viewpoint of light variation. In addition, analysis of the infrared color indices J - H, H - K, [12]-[25], and K-[12], as well as spectroscopy from 6000 Å to 9200 Å, reveals that these stars have relatively hot and thin circumstellar shells. We suggest that the phenomenon of being sometimes single-peaked OH maser emitters can be explained by the weakness of the unseen component resulting from the short amplification path. The distances to these stars are calculated from the well-defined period-luminosity relation in the K band. In addition, two stars are found to show a long secondary variation.
Fu Jian-Ning
Jiang Bi-Wei
Tang Xianzhu
No associations
LandOfFree
Near-Infrared Light Variation of Single-Peaked OH/IR Stars 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 Near-Infrared Light Variation of Single-Peaked OH/IR Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-Infrared Light Variation of Single-Peaked OH/IR Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1406453