A Renaissance study of Am stars. I. The mass ratio distribution

Details A Renaissance study of Am stars. I. The mass ratio distribution A Renaissance study of Am stars. I. The mass ratio distribution

2010-08-23

arxiv.org/abs/1008.3817v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

7 pages, 9 figures; Accepted by A&A

Scientific paper

Triggered by the study of Carquillat & Prieur (2007, MNRAS, 380, 1064) of Am binaries, I reanalyse their sample of 60 orbits to derive the mass ratio distribution (MRD), assuming as they did a priori functional forms, i.e. a power law or a Gaussian. The sample is then extended using orbits published by several groups and a full analysis of the MRD is made, without any assumption on the functional form. I derive the MRD using a Richardson-Lucy inversion method, assuming a fixed mass of the Am primary and randomly distributed orbital inclinations. Using the large sub-sample of double-lined spectroscopic binaries, I show that this methodology is indeed perfectly adequate. Using the inversion method, applied to my extended sample of 162 systems, I find that the final MRD can be approximated by a uniform distribution.

Affiliated with

Also associated with

No associations

Rating

A Renaissance study of Am stars. I. The mass ratio distribution 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 A Renaissance study of Am stars. I. The mass ratio distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Renaissance study of Am stars. I. The mass ratio distribution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-465879