Orbit of the Binary Star Ophiuchi
نویسندگان
چکیده
منابع مشابه
The Symbiotic Neutron Star Binary Gx 1+4/v2116 Ophiuchi
We present extensive optical, infrared, and X-ray observations of the S-type symbiotic low-mass X-ray binary GX 1+4/V2116 Oph, which consists of a 2-min X-ray pulsar accreting from an M6 III giant. This is the only symbiotic system definitely known to contain a neutron star. The mean observed spectral type of the X-ray-heated mass donor is M5 III. The steady interstellar extinction toward the b...
متن کاملThe Orbit of the Binary Star Delta Scorpii
Although δ Sco is a bright and well-studied star, the details of its multiplicity have remained unclear. Here we present the first diffractionlimited image of this 0. ′′12 binary star, made using optical interferometry, and resolve the confusion that has existed in the literature over its multi-
متن کاملAsteroseismology of the visual binary 70 Ophiuchi ⋆
Context. Convection in stars excites resonant acoustic waves. The frequencies of these oscillations depend on the sound speed inside the star, which in turn depends on density, temperature, gas motion, and other properties of the stellar interior. Therefore, analysis of the oscillations provides an unrivaled method to probe the internal structure of a star. Aims. Solar-like oscillations in the ...
متن کاملAsteroseismology and interferometry of the red giant star Ophiuchi
The GIII red giant star Oph has been found to exhibit several modes of oscillation by the MOST mission. We interpret the observed frequencies of oscillation in terms of theoretical radial p-mode frequencies of stellar models. Evolutionary models of this star, in both shell H-burning and core He-burning phases of evolution, are constructed using as constraints a combination of measurements from ...
متن کاملStar Formation in the ρ Ophiuchi Molecular Cloud
A review of star formation in the Rho Ophiuchi molecular complex is presented, with particular emphasis on studies of the main cloud, L1688, since 1991. Recent photometric and parallax measurements of stars in the Upper Scorpius subgroup of the Sco-Cen OB association suggest a distance for the cloud between 120 and 140 parsecs. Star formation is ongoing in the dense cores of L1688 with a median...
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: Monthly Notices of the Royal Astronomical Society
سال: 1888
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/48.5.254