The massive double-lined O-type binary HD 165052
نویسندگان
چکیده
منابع مشابه
The massive double - lined O - type binary HD 165052
We present a new optical spectroscopic study of the O-type binary HD 165052 based on highand intermediate-resolution CCD observations. We re-investigated the spectral classification of the binary components, obtaining spectral types of O6.5V and O7.5V for the primary and secondary, respectively, finding that both stars display weak C iii λ5696 emission in their spectra. We also determined a rad...
متن کاملThe distance to the Pleiades from orbital solution of the double - lined eclipsing binary HD 23642 ⋆ , ⋆ ⋆
Combining precise B,V photometry and radial velocities, we have been able to derive a firm orbital solution and accurate physical parameters for the newly discovered eclipsing binary HD 23642 in the Pleiades open cluster. The resulting distance to the binary and therefore to the cluster is 132±2 pc. This closely confirms the distance modulus obtained by classical main sequence fitting methods (...
متن کاملDetection of intrinsic variability in the eclipsing massive main-sequence O+B binary HD 165246
We present the analysis of 29.77 d of K2 space photometry of the well-detached massive 4.6 d O+B binary HD 165246 (V = 7.6) obtained during Campaign 9b. This analysis reveals intrinsic variability in the residual light curve after subtraction of the binary model, in the frequency range [0, 10] d−1. This makes HD 165246 only the second O+B eclipsing binary with asteroseismic potential. While som...
متن کاملDetection of frequency spacings in the young O-type binary HD 46149 from CoRoT photometry ******
Aims. Using the CoRoT space based photometry of the O-type binary HD 46149, stellar atmospheric effects related to rotation can be separated from pulsations, because they leave distinct signatures in the light curve. This offers the possibility of characterising and exploiting any pulsations seismologically. Methods. Combining high-quality space based photometry, multi-wavelength photometry, sp...
متن کاملMasses and age of the Chemically Peculiar double - lined binary χ Lupi ?
Aims. We aim at measuring the stellar parameters of the two Chemically Peculiar components of the B9.5Vp HgMn + A2 Vm double-lined spectroscopic binary HD141556 (χ Lup), whose period is 15.25 days. Methods. We combined historical radial velocity measurements with new spatially resolved astrometric observations from PIONIER/VLTI to reconstruct the three-dimensional orbit of the binary, and thus ...
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: 2002
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.2002.05404.x