a st ro - p h / 06 02 10 5 v 1 6 F eb 2 00 6 First Results from the CHARA Array . IV . The Interferometric Radii of Low - Mass Stars

ar X iv : a st ro - p h / 06 02 20 5 v 1 9 F eb 2 00 6 Disentangling effective temperatures of individual eclipsing binary components by means of color - index constraining

Eclipsing binary stars are gratifying objects because of their unique geometrical properties upon which all important physical parameters such as masses, radii, temperatures, luminosities and distance may be obtained in absolute scale. This poses strict demand on the model to be free of systematic effects that would influence the results later used for calibrations, catalogs and evolution theor...

First Results from the Chara Array. Iv. the Interferometric Radii of Low-mass Stars

We have measured the angular diameters of six M dwarfs with the CHARA Array, a long-baseline optical interferometer located at Mount Wilson Observatory. Spectral types range from M1.0 V to M3.0 Vand linear radii from 0.38 to 0.69 R . These results are consistent with the seven other M dwarf radii measurements from optical interferometry and with those for 14 stars in eclipsing binary systems. W...

ar X iv : a st ro - p h / 99 02 06 2 v 1 4 F eb 1 99 9 SOURCES OF RELATIVISTIC JETS IN THE GALAXY

ar X iv : a st ro - p h / 06 07 35 7 v 1 1 5 Ju l 2 00 6 Interferometric Mapping of Magnetic Fields : G 30 . 79 FIR 10

We present polarization maps of G30.79 FIR 10 (in W43) from thermal dust emission at 1.3 mm and from CO J=2 → 1 line emission. The observations were obtained using the Berkeley-Illinois-Maryland Association array in the period 2002-2004. The G30.79 FIR 10 region shows an ordered polarization pattern in dust emission, which suggests an hourglass shape for the magnetic field. Only marginal detect...

ar X iv : a st ro - p h / 04 02 16 8 v 1 7 F eb 2 00 4 A search for wide ( sub ) stellar companions around extrasolar planet host stars

We present an overview of our ongoing systematic search for wide (sub)stellar companions around the stars known to host rad-vel planets. By using a relatively large field of view and going very deep, our survey can find all directly detectable stellar and massive brown dwarf companions (m>40 MJup) within a 1000 AU orbit.