System Parameters for the Eclipsing B-Star Binary HD 42401

Details System Parameters for the Eclipsing B-Star Binary HD 42401 System Parameters for the Eclipsing B-Star Binary HD 42401

2008-09-22

arxiv.org/abs/0809.3747v2

Astronomical Journal, 137:3222-3229, 2009 February

Astronomy and Astrophysics

Astrophysics

20 pages, 8 figures, Added and modified figures and text. Accepted to AJ

Scientific paper

10.1088/0004-6256/137/2/3222

I present results from an optical spectroscopic investigation of the binary system HD 42401 (V1388 Ori; B2.5 IV-V + B3 V). A combined analysis of V-band photometry and radial velocities indicates that the system has an orbital period of 2.18706 +/- 0.00005 days and an inclination of 75.5 +/- 0.2 degrees. This solution yields masses and radii of M1 = 7.42 +/- 0.08 Solar Masses and R1 = 5.60 +/- 0.04 Solar Radii for the primary and M2 = 5.16 +/- 0.03 Solar Masses and R2 = 3.76 +/- 0.03 Solar Radii for the secondary. Based on the position of the two stars plotted on a theoretical H-R diagram, I find that the age of the system is > 25 Myr and that both stars appear overluminous for their masses compared to single star evolutionary tracks. A fit of the spectral energy distribution based on photometry from the literature yields a distance to HD 42401 of 832 +/- 89 parsecs.

Affiliated with

Also associated with

No associations

Rating

System Parameters for the Eclipsing B-Star Binary HD 42401 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 System Parameters for the Eclipsing B-Star Binary HD 42401, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System Parameters for the Eclipsing B-Star Binary HD 42401 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-300211