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]
The Astronomical 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.
Richard Monier +12 more
doaj +2 more sources
Studies of Magnetic Chemically Peculiar Stars Using the 6-m Telescope at SAO RAS
Universe, 2021 We present a survey of the most important results obtained in observations with the 6-m telescope in the studies of magnetic fields of chemically peculiar stars.
Iosif Romanyuk
doaj +2 more sources
Magnetic Fields of Chemically Peculiar and Related Stars. VIII. Main Results of 2021 and Near-Future Prospects [PDF]
Astrophysical 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
A New Catalog of Am-type Chemically Peculiar Stars Based on LAMOST
The Astrophysical Journal Supplement Series, 2023 A total of about 21,600 Am candidates were detected with the MKCLASS code based on the low-resolution spectra of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope Data Releases 8 (v1.0), 9 (v0), and 10 (v0), which greatly expands the database
Xiao-man Tian +3 more
doaj +2 more sources
The Kepler view of magnetic chemically peculiar stars [PDF]
Astronomy & Astrophysics, 2018 Magnetic chemically peculiar (mCP) stars exhibit complex atmospheres that allow the investigation of such diverse phenomena as atomic diffusion, magnetic fields, and stellar rotation.
Bernhard, Klaus +8 more
core +2 more sources
ON THE POSSIBLE NATURE OF Bp-Ap STARS: AN APPLICATION TO HD101065 and HR465
Odessa Astronomical Publications, 2007 We have proposed the new explanation of some magnetic chemically peculiar (MCP) stars anomalies, which is based on assumption that such stars can be the close binary systems with a secondary component being neutron star.
V. F. Gopka +2 more
doaj +3 more sources
Lithium evolution in the low-mass evolved stars with asteroseismology and LAMOST spectroscopy [PDF]
Fundamental ResearchLithium is an ancient element that was first produced by the Big Bang Nucleosynthesis (BBN) a few minutes after the birth of the Universe. Lithium is a sensitive tracer for a number of processes in a variety of astrophysical environments due to its multi-
Hong-Liang Yan +9 more
doaj +2 more sources
Magnetic chemically peculiar stars
, 2015 Chemically peculiar (CP) stars are main-sequence A and B stars with abnormally strong or weak lines for certain elements. They generally have magnetic fields and all observables tend to vary with the same period.
B Nordström +24 more
core +2 more sources
Photometric variability of the LAMOST sample of magnetic chemically peculiar stars as seen by TESS [PDF]
Astronomy & 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]
Monthly 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