Modulations in Multi-Periodic Blue Variables in the LMC

Details Modulations in Multi-Periodic Blue Variables in the LMC Modulations in Multi-Periodic Blue Variables in the LMC

2009-07-17

arxiv.org/abs/0907.3013v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 3 figures, Astrophysical Journal (in press)

Scientific paper

As shown by Mennickent, et al(2003), a subset of the blue variable stars in the Large Magellanic Cloud exhibit brightness variability of small amplitude in the period range 2.4 to 16 days as well as larger amplitude variability with periods of 140 to 600 days, with a remarkably tight relation between the long and the short periods. Our re-examination of these objects has led to the discovery of additional variability. The Fourier spectra of 11 of their 30 objects have 3 or 4 peaks above the noise level and a linear relation of the form f_a = 2(f_b - f_L) among three of the frequencies. An explanation of this relation requires an interplay between the binary motion and that of a third object. The two frequency relations together with the Fourier amplitude ratios pose a challenging modeling problem.

Affiliated with

Also associated with

No associations

Rating

Modulations in Multi-Periodic Blue Variables in the LMC 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 Modulations in Multi-Periodic Blue Variables in the LMC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modulations in Multi-Periodic Blue Variables in the LMC will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-110391