ON THE LINK BETWEEN CORONAL ACTIVITY AND ORBITAL PERIOD IN EVOLVED BINARY STARS

Authors
MELO CHF DEMEDEIROS JR
Citation
Chf. Melo et Jr. Demedeiros, ON THE LINK BETWEEN CORONAL ACTIVITY AND ORBITAL PERIOD IN EVOLVED BINARY STARS, Astronomy and astrophysics, 310(3), 1996, pp. 797-800
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
310
Issue
3
Year of publication
1996
Pages
797 - 800
Database
ISI
SICI code
0004-6361(1996)310:3<797:OTLBCA>2.0.ZU;2-X
Abstract
The analysis of the relationship between X-emission flux and orbital p eriod indicates a drop in the X-ray emission of binaries with evolved components at orbital periods of about 100 days: Intense X-ray emitter s have an orbital period lower than 100 days, whereas with an orbital period greater than about 100 days are weak X-ray emitters. This criti cal period corresponds to the orbital period separating binary systems with circular orbits from those of eccentric orbits.