Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii

Details Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...18710213w&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #102.13; Bulletin of the American Astronomical Society, Vol. 27, p.1430

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the initial results of the analysis of the precise radial velocities of the relatively little-studied star delta Sagittarii, K2.5 IIIa, HR 6859. The data were obtained at the Canada-France-Hawaii Telescope using the hydrogen fluoride absorption cell technique. The periodogram shows significant peaks at 2.8 days (K=104 m s(-1) ), 63 days (K=85 m s(-1) ), and 295 days (K=72 m s(-1) ). Because of our limited data the true period cannot be distinguished from these possibilities due to aliasing. This giant is an interesting example of a star having a radial velocity periodicity which may be attributed to intrinsic variability, rotational modulation, or the presence of a low M_2 sin i companion (see A. Walker et al., this conference). More observations are urgently required to determine the true period and to discover the underlying origin for this star's radial velocity variability.

Affiliated with

Also associated with

No associations

Rating

Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii 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 Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Intriguing, Low-amplitude Periodicity in the Radial Velocities of delta Sagittarrii will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1256659