Results 11 to 20 of about 563,854 (280)
Magnetic fields in early-type stars [PDF]
Proceedings of the International Astronomical Union, 2014 AbstractFor several decades we have been cognizant of the presence of magnetic fields in early-type stars, but our understanding of their magnetic properties has recently (over the last decade) expanded due to the new generation of high-resolution spectropolarimeters (ESPaDOnS at CFHT, Narval at TBL, HARPSpol at ESO). The most detailed surface magnetic
Grunhut, Jason H., Neiner, Coralie
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Differential rotation in early type stars [PDF]
, 2006 Using 2D models of rotating stars, the interferometric measurements of alpha Eri and its fundamental parameters corrected for gravitational darkening effects we infer that the star might have a core rotating 2.7 times faster than the surface. We explore the consequences on spectral lines produced by surface differential rotation combined with the ...
Zorec, J. +2 more
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KMOS view of the Galactic Centre I. Young stars are centrally concentrated [PDF]
, 2015 The Galactic centre hosts a crowded, dense nuclear star cluster with a half-light radius of 4 pc. Most of the stars in the Galactic centre are cool late-type stars, but there are also >100 hot early-type stars in the central parsec of the Milky Way ...
de Zeeuw, P. T. +9 more
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B- and A-Type Stars in the Taurus-Auriga Star Forming Region [PDF]
, 2013 We describe the results of a search for early-type stars associated with the Taurus-Auriga molecular cloud complex, a diffuse nearby star-forming region noted as lacking young stars of intermediate and high mass. We investigate several sets of possible O,
Hillenbrand, Lynne A. +4 more
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Reprocessing the Hipparcos data for evolved giant stars II. Absolute magnitudes for the R-type carbon stars [PDF]
, 2001 The Hipparcos Intermediate Astrometric Data for carbon stars have been reprocessed using an algorithm which provides an objective criterion for rejecting anomalous data points and constrains the parallax to be positive.
A. Jorissen +52 more
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Polarimetry of Southern Peculiar Early-Type Stars [PDF]
Astronomy and Astrophysics Supplement Series, 1998 An important factor is the relation of HAEBE stars with other groups of peculiar early type stars, such as Be and B[e] stars, luminous blue variables (LBVs) etc. In many cases Polarimetric properties of HAEBE stars and B[e] (Be) stars are similar. We have carried out a Polarimetric study of peculiar early-type stars with the following aims: 1 ...
R. V. Yudin, A. Evans
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X-ray properties of early-type stars [PDF]
Symposium - International Astronomical Union, 1994 Extensive stellar surveys with the Einstein Observatory (Chlebowski et al., 1989) and with ROSAT have clearly confirmed the presence of stellar X-ray emission over nearly the whole range of the HR diagram. In the ROSAT all-sky survey data approximately 20000 stellar X-ray sources were detected (Schmitt et al., 1992).
Thomas W. Berghöfer +1 more
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The Incidence of Debris Disks at 24 {\mu}m and 670 Myr [PDF]
, 2012 We use Spitzer Space Telescope 24 {\mu}m data to search for debris disks among 122 AFGKM stars from the \sim 670 Myr clusters Hyades, Coma Ber, and Praesepe, utilizing a number of advances in data reduction and determining the intrinsic colors of main ...
Rieke, George +3 more
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Mass Loss from Early-Type Stars [PDF]
Symposium - International Astronomical Union, 1970 Following the detailed study of four very high luminosity OB stars, a survey has been made for spectroscopic evidence of mass loss in a number of early-type supergiants. A list of spectroscopic criteria is given and the mass loss estimates for 24 stars plotted on the HR diagram.
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The Astrophysical Journal, 1968 Surface magnetic field variations in early stars, suggesting mechanism for magnetic energy transfer from convective core to ...
A. Finzi, R. A. Wolf
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