Results 41 to 50 of about 28,753 (238)
Chemically Peculiar Stars in Galaxies
, 2023 In an aging stellar population, the number fractions of chemically peculiar (CP) stars rise and fall periodically, and the fractions are high enough that their spectra features survive to appear in integrated light at subtle levels. Chemically peculiar stars are suggested to be used to disentangle an age history from integrated light spectroscopy.
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Chemically peculiar stars and their temperature calibration [PDF]
Astronomy & Astrophysics, 2008 15 pages, 8 figures, accepted by A& ...
Netopil, Martin +4 more
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Global properties of the light curves of magnetic, chemically peculiar stars as a testbed for the existence of dipole-like symmetry in surface structures [PDF]
Astronomy & Astrophysics, 2019 Context. Magnetic, chemically peculiar stars are known for exhibiting surface abundance inhomogeneities (chemical spots) that lead to photometric and spectroscopic variability with the rotation period.
M. Jagelka +3 more
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Chemically peculiar stars as seen with 2MASS [PDF]
Astronomy & Astrophysics, 2015 The chemically peculiar (CP) stars of the upper main sequence are well suited for investigating the impact of magnetic fields and diffusion on the surface layers of slowly rotating stars. They can even be traced in the Magellanic Clouds and are important to the understanding of the stellar formation and evolution. A systematic investigation of the near-
Herdin, A., Paunzen, E., Netopil, M.
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Chromospheres of Chemically Peculiar Giant Stars [PDF]
International Astronomical Union Colloquium, 1989 AbstractA review is given of the chromospheres of evolved stars with peculiar chemical abundances, emphasizing the observed dependence of chromospheric properties upon the evolutionary status of the stars. Some old and new physical processes which are potentially important in determining the observed chromospheric features are discussed.
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An investigation of the rotational properties of magnetic chemically peculiar stars [PDF]
, 2017 The magnetic chemically peculiar (mCP) stars of the upper main sequence exhibit strong, globally organized magnetic fields that are inclined to the rotational axis and facilitate the development of surface abundance inhomogeneities resulting in ...
M. Netopil +3 more
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Radio emission from chemically peculiar stars
The Astrophysical Journal, 1992 In five VLA observing runs the initial survey of radio emission from magnetic Bp-Ap stars by Drake et al. is extended to include a total of 16 sources detected at 6 cm out of 61 observed, giving a detection rate of 26 percent. Of these stars, three are also detected at 2 cm, four at 3.6 cm, and five at 20 cm.
Jeffrey L. Linsky +2 more
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Chemically peculiar stars as members of open clusters
Monthly notices of the Royal Astronomical SocietyThe chemically peculiar (CP) stars of the upper main sequence are excellent astrophysical laboratories to test the diffusion, mass-loss, rotational mixing, and pulsation in the (non-)presence of a stable local magnetic field.
N. Faltová +14 more
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Evolutionary state of magnetic chemically peculiar stars [PDF]
Astronomy & Astrophysics, 2006 We present a comprehensive statistical investigation of the evolution of magnetic CP stars, aimed at providing constraints to the theories that deal with the origin of the magnetic field in these stars. We have collected from the literature data for 150 magnetic CP stars with accurate Hipparcos parallaxes.
Bagnulo, S. +3 more
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Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source