Interferometric Observations of Algol

Details Interferometric Observations of Algol Interferometric Observations of Algol

2009-09-28

arxiv.org/abs/0909.5047v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

in the conference proceedings of 'Binaries: key to comprehension of the Universe' (Brno, Czech Republic, 2009 June 8-12)

Scientific paper

We determined the spatial orientation of the Algol AB close pair orbital plane using optical interferometry with the CHARA Array, and radio interferometry with the European VLBI Network (EVN). We found the longitude of the line of nodes for the close pair being $\Omega_1=48\deg\pm2\deg$ and the mutual inclination of the orbital planes of the close and the wide pairs being $95\deg\pm3\deg$. This latter value differs by $5\deg$ from the formerly known $100\deg$ which would imply a very fast inclination variation of the system, not supported by the photometric observations. We also investigated the dynamics of the system with numerical integration of the equations of motions using our result as an initial condition. We found large variations in the inclination of the close pair (its amplitude $\sim 170\deg$) with a period of about 20 millenia. This result is in good agreement with the photometrically observed change of amplitude in Algol's primary minimum.

Affiliated with

Also associated with

No associations

Rating

Interferometric Observations of Algol 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 Interferometric Observations of Algol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interferometric Observations of Algol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-234685