Results 11 to 20 of about 51,001 (265)
Magnetic Fields of F-Type Stars [PDF]
, 2022 Magnetic fields are an observable feature of many stars, with warm, F-type stars of interest in searching for the transition from the fossil fields in hot stars to dynamos in cool stars driven by convection zones.
Seach, John M.
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The magnetic fields, activity and hidden companions of solar-type stars [PDF]
, 2023 The magnetic fields of the Sun and other solar-type stars manifest in a range of observable surface phenomena that provide insight into the magnetic dynamos operating within, but also hamper the detection of exoplanets.
Brown, Emma
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The masses of late-type WN stars [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe present recent results for galactic WNL stars, obtained with the new Potsdam Wolf-Rayet (PoWR) hydrodynamic model atmospheres. Based on a combination of stellar wind modeling and spectral analysis we identify the galactic WNL subtypes as a group of extremely luminous stars close to the Eddington limit.
Gräfener, G., Hamann, W. -R.
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Infrared imaging of late-type stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1996 Infrared imaging properties of dusty winds around late-type stars are investigated in detail, employing a self-consistent model that couples the equations of motion and radiative transfer. Because of general scaling properties, the angular profiles of surface brightness are self-similar. In any given star, the profile shape is determined essentially by
Ivezic, Zeljko, Elitzur, Moshe
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Polyatomic Molecules in Late-Type Stars. [PDF]
The Astrophysical Journal, 1948 Some general problems connected with the presence of polyatomic molecules in stellar atmospheres are noted, and, in particular, reasons are advanced in favor of attributing at least part of the intensity drop and fluctuations in the spectra of the N-type stars violetward of λ 4100 to the triatomic molecule CH2.
Swings, Polydore, McKellar, A.
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The magnetic fields and stellar winds of the mature late F-stars: β Virginis and θ Draconis [PDF]
, 2022 International audienceMapping the large-scale magnetic field in late F-type stars is important for understanding the nature of the stellar dynamo and the dynamics of thin outer convection zones.
Folsom, C. P. +6 more
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Superflares on Late-Type Stars [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractWe present the results of an extensive survey of superflares on late-type stars (G, K, and M-type main sequence stars) using the Kepler satellite data. Wefound about 6,800 superflares on late-type stars from the data of about 120,000 stars observed over 500 days.
Hiroyuki Maehara +7 more
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Photospheric Macroturbulence in Late-Type Stars [PDF]
International Astronomical Union Colloquium, 1980 It is intimidating to attempt a review of the subject of late-type stars macroturbulence which follows so closely on the heels of David Gray’s (1978) fine review in Solar Physics. Therefore this paper will avoid many emphases of his review while filling in some areas where some progress has emerged in the last 1-1/2 years.
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XMM-Newton X-ray study of early type stars in the Carina OB1 association [PDF]
, 2007 <p><b>Aims:</b> X-ray properties of the stellar population in the Carina OB1 association are examined with special emphasis on early-type stars.
I. I. Antokhin +14 more
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Radial Velocities for 889 Late‐Type Stars [PDF]
The Astrophysical Journal Supplement Series, 2002 We report radial velocities for 844 FGKM-type main sequence and subgiant stars and 45 K giants, most of which had either low-precision velocity measurements or none at all. These velocities differ from the standard stars of Udry et al. by 0.035 km/s (RMS) for the 26 FGK standard stars in common.
Nidever, David L. +4 more
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