New Binaries in theϵCha Association
نویسندگان
چکیده
منابع مشابه
New absolute magnitude calibrations for detached binaries
1 Istanbul University, Faculty of Sciences, Department of Astronomy and Space Sciences, 34119 Istanbul, Turkey 2 TÜBİTAK National Observatory, Akdeniz University Campus, 07058 Antalya, Turkey 3 Çanakkale Onsekiz Mart University, Faculty of Sciences and Arts, Department of Physics, 17100 Çanakkale, Turkey 4 Erciyes University, Faculty of Sciences and Arts, Department of Astronomy and Space Scien...
متن کاملSix new candidate ultracompact X - ray binaries
Ultracompact X-ray binaries (UCXBs) appear able to sustain accretion onto the compact accretor at rates lower than in wider X-ray binaries. This may be understood by the smaller accretion disks in UCXBs: a lower X-ray luminosity suffices to keep a disk completely ionized through irradiation and, thus, keep the viscosity at a sufficiently high level to allow effective transport of matter to the ...
متن کاملThe LuckyCam survey for very low mass binaries – II. 13 new M4.5–M6.0 binaries
We present results from a high angular resolution survey of 77 very low mass (VLM) binary systems with 6.0 V − K colour 7.5 and proper motion 0.15 arcsec yr−1. 21 VLM binaries were detected, 13 of them new discoveries. The new binary systems range in separation between 0.18 and 1.3 arcsec. The distance-corrected binary fraction is 13.6+6.5 −4 per cent, in agreement with previous results. Nine o...
متن کاملForty Years of X-Ray Binaries
In 2012 it was forty years ago that the discovery of the first X-ray binary Centaurus X-3 became known. That same year it was discovered that apart from the High-Mass X-ray Binaries (HMXBs) there are also Low-Mass X-ray Binaries (LMXBs), and that Cygnus X-1 is most probably a black hole. By 1975 also the new class of Be/X-ray binaries was discovered. After this it took 28 years before ESAs INTE...
متن کاملAstronomy & Astrophysics Orbits of new Hipparcos binaries . I
We present first orbits for 6 new Hipparcos binaries. The orbits were determined from speckle interferometric measurements collected mainly at the 6 m BTA telescope of the Special Astrophysical Observatory in Zelenchuk. Three of the systems, HIP 11352, HIP 14075 and HIP 14230, have late Gor early K-type components, while HIP 14669 = GJ 125, HIP 106972 = GJ 4210 and HIP 111685 = GJ 4287 have M-t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2017
ISSN: 1538-3881
DOI: 10.3847/1538-3881/aa8e9b