Magnetism in High-Mass Stars

Z Keszthelyi - Galaxies, 2023 - mdpi.com
Magnetism is a ubiquitous property of astrophysical plasmas, yet stellar magnetism still
remains far from being completely understood. In this review, we describe recent …

Confronting sparse Gaia DR3 photometry with TESS for a sample of around 60 000 OBAF-type pulsators

D Hey, C Aerts - Astronomy & Astrophysics, 2024 - aanda.org
Context. The Gaia mission has delivered hundreds of thousands of variable star light curves
in multiple wavelengths. Recent work demonstrates that these light curves can be used to …

MOBSTER–VI. The crucial influence of rotation on the radio magnetospheres of hot stars

ME Shultz, SP Owocki, A Ud-Doula… - Monthly Notices of …, 2022 - academic.oup.com
Numerous magnetic hot stars exhibit gyrosynchrotron radio emission. The source electrons
were previously thought to be accelerated to relativistic velocities in the current sheet formed …

[HTML][HTML] Variability of OB stars from TESS southern Sectors 1–13 and high-resolution IACOB and OWN spectroscopy

S Burssens, S Simón-Díaz, DM Bowman… - Astronomy & …, 2020 - aanda.org
Context. The lack of high-precision long-term continuous photometric data for large samples
of stars has impeded the large-scale exploration of pulsational variability in the OB star …

BCD Spectrophotometry and Rotation of Active B-Type Stars: Theory and Observations

J Zorec - Galaxies, 2023 - mdpi.com
This review has two parts. The first one is devoted to the Barbier–Chalonge–Divan (BCD)
spectrophotometric system, also known as the Paris spectral classification system. Although …

A scaling relationship for non-thermal radio emission from ordered magnetospheres: from the top of the main sequence to planets

P Leto, C Trigilio, J Krtička, L Fossati… - Monthly Notices of …, 2021 - academic.oup.com
In this paper, we present the analysis of incoherent non-thermal radio emission from a
sample of hot magnetic stars, ranging from early-B to early-A spectral type. Spanning a wide …

Asteroseismic inference of the near-core magnetic field strength in the main-sequence B star HD 43317

D Lecoanet, DM Bowman… - Monthly Notices of the …, 2022 - academic.oup.com
About 10 per cent of intermediate-and high-mass dwarf stars are observed to host a strong
large-scale magnetic field at their surface, which is thought to be of fossil field origin …

The magnetic early B-type stars–IV. Breakout or leakage? H α emission as a diagnostic of plasma transport in centrifugal magnetospheres

ME Shultz, S Owocki, T Rivinius… - Monthly Notices of …, 2020 - academic.oup.com
Rapidly rotating early-type stars with strong magnetic fields frequently show H α emission
originating in centrifugal magnetospheres (CMs), circumstellar structures in which …

Spectropolarimetry of magnetic Chemically Peculiar stars in the Orion OB1 association

E Semenko, I Romanyuk, I Yakunin… - Monthly Notices of …, 2022 - academic.oup.com
We summarize 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 …

Centrifugal breakout reconnection as the electron acceleration mechanism powering the radio magnetospheres of early-type stars

SP Owocki, ME Shultz, A Ud-Doula… - Monthly Notices of …, 2022 - academic.oup.com
Magnetic B-stars often exhibit circularly polarized radio emission thought to arise from
gyrosynchrotron emission by energetic electrons trapped in the circumstellar …