Orbital eccentricity of the symbiotic star MWC 560
نویسندگان
چکیده
منابع مشابه
Detection of X - rays from the jet - driving Symbiotic Star MWC 560
Aims. We report the detection of X-ray emission from the jet-driving symbiotic star MWC 560. Methods. We observed MWC 560 with XMM-Newton for 36 ks. We fitted the spectra from the EPIC pn, MOS1 and MOS2 instruments with XSPEC and examined the light curves with the package XRONOS. Results. The spectrum can be fitted with a highly absorbed hard X-ray component from an optically-thin hot plasma, a...
متن کاملSpectral study of MWC 560 . Parameters of the system , the hot source and the jets
Results of spectroscopy of unusual symbiotic variable star MWC560 are presented. The data have been obtained from autumn 1990 to spring 1993. High velocity absorption lines of H I, D1 D2 Na I, Fe II(42) and He I are permanently presented in the spectra, their radial velocity is −500 ÷ −2500 km/s and is changed with a time–scale of a few months. The high velocity absorption line profiles demonst...
متن کاملDisk Surrounding the Massive Main Sequence Star Mwc 297 ?
We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J=2-1) rotational transitions of 12CO,13CO and C18O using the Submillimeter Array. At a distance of 250 pc, MWC 297 is one of the closest, young massive stars (M⋆ ∼10 M⊙) to us. Compact continuum emission is detected towards MWC 297 from which...
متن کاملOrbital tuning, eccentricity, and the frequency modulation of climatic precession
[1] The accuracy of geologic chronologies can, in principle, be improved through orbital tuning, the systematic adjustment of a chronology to bring the associated record into greater alignment with an orbitally derived signal. It would be useful to have a general test for the success of orbital tuning, and one proposal has been that eccentricity ought to covary with the amplitude envelope assoc...
متن کاملThe Exoplanet Orbital Eccentricity - Multiplicity Relation and the Solar System
i i i i The Exoplanet Orbital Eccentricity Multiplicity Relation and the Solar System Mary Anne Limbach ∗ † and Edwin L. Turner ∗ ‡ ∗Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA,†Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA, and ‡The Kavli Institute for the Physics and Mathematics of the Universe, The ...
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: Astronomische Nachrichten
سال: 2010
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.200911297