Optical photometric variability of 2S 0114+65

Details Optical photometric variability of 2S 0114+65 Optical photometric variability of 2S 0114+65

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....109..396t&link_type=abstract

The Astronomical Journal (ISSN 0004-6256), vol. 109, no. 1669, p. 396-400

Astronomy and Astrophysics

Astronomy

8

Astronomical Photometry, B Stars, Neutron Stars, Periodic Variations, X Ray Binaries, Stellar Luminosity, Stellar Oscillations, Stellar Rotation, X Ray Astronomy

Scientific paper

In this paper we present Johnson V photometry of the Be/x-ray binary star system 2S 0114+65. Although this star exhibits periodic variations in x-rays, optical studies have failed to reveal fluctuations greater than 5 millimag. The data presented in this paper provide the first evidence for periodic optical variability in 2S 0114+65. On each of four nights in October 1993, we find low amplitude variations with a period of 2.77 +/- 0.48 h and with a semiamplitude of 4 millimag. This period is in good agreement with results of a comprehensive study of the x-ray data. We explore the possibility that this period represents the pulsational period of the B-star primary and the possibility that it is the rotational period of the neutron star. If the latter is the correct interpretation, we calculate a spin-up time scale of 5 x 105 yr.

Affiliated with

Also associated with

No associations

Rating

Optical photometric variability of 2S 0114+65 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 Optical photometric variability of 2S 0114+65, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical photometric variability of 2S 0114+65 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1818375