Results 31 to 40 of about 39,906 (300)

A plethora of new, magnetic chemically peculiar stars from LAMOST DR4 [PDF]

Astronomy & Astrophysics, 2020
Context. Magnetic chemically peculiar (mCP) stars are important to astrophysics because their complex atmospheres lend themselves perfectly to the investigation of the interplay between such diverse phenomena as atomic diffusion, magnetic fields, and ...
S. Huemmerich, E. Paunzen, K. Bernhard
semanticscholar   +1 more source

Multiplicity of Chemically Peculiar Stars [PDF]

, 2007
7 pages, 4 figures, to appear in the Proceedings of the ESO Workshop "Multiple Stars across the H-R Diagram"
Hubrig, S., Ageorges, N., Schoeller, M.
openaire   +2 more sources

A photometric study of chemically peculiar stars with the STEREO satellites – II. Non-magnetic chemically peculiar stars★ [PDF]

Monthly Notices of the Royal Astronomical Society, 2012
22 pages, 7 figures, 3 tables, accepted by ...
Paunzen, E., Wraight, K. T., Fossati, L., Netopil, M., White, G. J., Bewsher, D.   +5 more
openaire   +3 more sources

New magnetic chemically peculiar stars [PDF]

Monthly Notices of the Royal Astronomical Society, 2006
Our observations with the 6-m telescope revealed six new magnetic chemically peculiar (CP) stars among objects with large depressions in the continuum: HDE 293764, BD+17°3622, HD 169887, HDE 231054, HDE 338226, and HDE 343872. The presence of a magnetic field is suspected in several other CP stars.
D. O. Kudryavtsev, I. I. Romanyuk, V. G. Elkin, E. Paunzen   +3 more
openaire   +1 more source

Horizontal flows in the atmospheres of chemically peculiar stars [PDF]

Astronomy & Astrophysics
Classical chemically peculiar stars exhibit atmospheres that are often structured by the effects of atomic diffusion. As a result of these elemental diffusion and horizontal abundance variations, the photospheric temperature varies at a given height in ...
A. ud-Doula, J. Krtička, B. Kub'atov'a
semanticscholar   +1 more source

Spectroscopy of a chemically peculair delta scuti-type star: 60 tau

Cumhuriyet Science Journal, 2020
In this study, a detailed spectroscopic analysis of 60 Tau is presented. 60 Tau is a Delta Scuti-type pulsating variable and it is also a metallic-lined (Am) star.
Filiz Kahraman Aliçavuş
doaj   +1 more source

Could the Ultra Metal-poor Stars be Chemically Peculiar and Not Related to the First Stars? [PDF]

, 2008
Chemically peculiar stars define a class of stars that show unusual elemental abundances due to stellar photospheric effects and not due to natal variations.
Asplund M., David L. Lambert, Dunkin S. K., Gustafsson B., K. A. Venn, Lemke M., Lodders K., Takeda Y., Takeda Y., van Winckel H., van Winckel H., van Winckel H., Waelkens C.   +12 more
core   +2 more sources

Chemically peculiar stars on the pre-main sequence [PDF]

Astronomy & Astrophysics
The chemically peculiar (CP) stars of the upper main sequence are defined by spectral peculiarities that indicate unusual elemental abundance patterns in the presence of diffusion in the calm, stellar atmospheres.
L. Kueß, E. Paunzen, N. Faltov'a, D. Jadlovsk'y, M. Labaj, M. Mesarvc, P. Mondal, M. Privsegen, T. Ramezani, J. Sup'ikov'a, K. Svavcinkov'a, M. V'itkov'a, C. Xia, K. Bernhard, S. D. O. Astrophysics, V. University, Vienna, M Austria, D. Physics, Astrophysics, Masaryk University, Brno, Czechia, Advanced Technologies Research Institute, Faculty of Computer Science, Technology in Trnava, S. Bratislava, Slovakia, Institute of Computer Science, Bundesdeutsche Arbeitsgemeinschaft fur Veranderliche Sterne e.V., Berlin, Germany, American Association of Variable Star Observers, Cambridge, Usa   +34 more
semanticscholar   +1 more source

Chemically peculiar stars in the Large Magellanic Cloud [PDF]

, 2006
The detection of magnetic chemically peculiar (CP2) stars in open clusters of extragalactic systems can give observational answers to many unsolved questions.
A. Claret, Alves, Claret, Claret, Dirsch, Dolphin, E. Paunzen, Ginestet, Gómez, H. M. Maitzen, I. Kh. Iliev, Kupka, M. Netopil, Maitzen, Maitzen, O. I. Pintado, Paunzen, Paunzen, Paunzen, Pavlovski, Preston, Taylor, van Loon, Zaritsky   +23 more
core   +3 more sources

The astrophysical parameters of chemically peculiar stars from automatic methods [PDF]

Astronomy & Astrophysics
The chemically peculiar (CP) stars of the upper main sequence are excellent astrophysical laboratories for investigating the diffusion, mass loss, rotational mixing, and pulsation in the presence and absence of a stable local magnetic field.
E. Paunzen
semanticscholar   +1 more source