Results 1 to 10 of about 28,753 (238)

Magnetic Fields of Chemically Peculiar and Related Stars. VIII. Main Results of 2021 and Near-Future Prospects [PDF]

open access: yesAstrophysical Bulletin, 2022
—We present a review of the papers written in the research field of stellar magnetism in 2021. The instruments, observation, and data analysis methods, photometry, spectroscopy, and spectropolarimetry results are considered.
Romanyuk I.
europepmc   +2 more sources

The Surface Composition of Six Newly Discovered Chemically Peculiar Stars. Comparison to the HgMn Stars mu Lep and beta Scl and the Superficially Normal B Star nu Cap [PDF]

open access: yesAstronomical Journal, 2023
We report on a detailed abundance study of six bright, mostly southern, slowly rotating late B-stars: HD 1279 (B8III), HD 99803 (B9V), HD 123445 (B9V), HD 147550 (B9V), HD 171961 (B8III), and HD 202671 (B5II/III), hitherto reported as normal stars.
R. Monier   +12 more
semanticscholar   +1 more source

Photometric variability of the LAMOST sample of magnetic chemically peculiar stars as seen by TESS [PDF]

open access: yesAstronomy & Astrophysics, 2023
High-quality light curves from space missions have opened up a new window on the rotational and pulsational properties of magnetic chemically peculiar (mCP) stars and have fuelled asteroseismic studies. They allow the internal effects of surface magnetic
J. Labadie-Bartz   +4 more
semanticscholar   +1 more source

Analysis of eight magnetic chemically peculiar stars with rotational modulation [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
Since the end of 2018, the Transiting Exoplanet Survey Satellite (TESS) has provided stellar photometry to the astronomical community. We have used TESS data to study rotational modulation in the light curves of a sample of chemically peculiar stars ...
O. Kobzar   +11 more
semanticscholar   +1 more source

The detection of magnetic chemically peculiar stars using Gaia BP/RP spectra [PDF]

open access: yesAstronomy & Astrophysics, 2022
The magnetic chemically peculiar (mCP) stars of the upper main sequence are perfectly suited to studying the effects of rotation, diffusion, mass-loss, accretion, and pulsation in the presence of an organized stellar magnetic field.
E. Paunzen, M. Prišegen
semanticscholar   +1 more source

Spectropolarimetry of Magnetic Chemically Peculiar Stars in the Orion OB1 Association [PDF]

open access: yes, 2022
We summarise the results of a spectropolarimetric survey of 56 chemically peculiar (CP) stars in the association of Orion OB1. We uniformly collected the observational material with the 6-m telescope BTA of the Special Astrophysical Observatory in 2013 ...
E. Semenko   +4 more
semanticscholar   +1 more source

Chemically Peculiar Stars in the Open Cluster Stock 2 [PDF]

open access: yesAstronomical Journal, 2022
The recently rediscovered open cluster Stock 2, located roughly 375 pc away and about 400 Myr old, has the potential to be an exciting new testbed for our understanding of stellar evolution.
L. Casamiquela   +4 more
semanticscholar   +1 more source

High-resolution spectroscopic analysis of four new chemically peculiar stars [PDF]

open access: yes, 2022
We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack comprehensive analyses at high spectral resolution.
M. Roriz   +5 more
semanticscholar   +1 more source

Twenty-year monitoring of the surface magnetic fields of chemically peculiar stars [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2021
Magnetic chemically peculiar stars of the main sequence can present rotational periods as long as many decades. Here we report the results of an observational campaign started in 2001 aimed at establishing these very long periods from the variability ...
M. Giarrusso   +7 more
semanticscholar   +1 more source

Chemically Peculiar Stars in Integrated Light Stellar Population Models and Local Group Galaxies [PDF]

open access: yes, 2022
Integrated-light models that incorporate common types of chemically peculiar (CP) stars are assembled using synthetic spectra. Selected spectral features encode significant age information for populations with ages $\sim$50 Myr $
G. Worthey, Xiang-dong Shi
semanticscholar   +1 more source

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