Results 131 to 140 of about 412,693 (262)
The Astrophysical JournalHD 148937 is a peculiar massive star (Of?p) with a strong magnetic field (1 kG). The hourglass-shaped emission nebula NGC 6164/5 surrounds this star. This nebula is presumed to originate from episodic mass-loss events of the central O-type star, but the ...
Beomdu Lim +3 more
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Weakened Magnetic Braking in the Exoplanet Host Star 51 Peg
The Astrophysical Journal LettersThe consistently low activity level of the old solar analog 51 Peg not only facilitated the discovery of the first hot Jupiter, but also led to the suggestion that the star could be experiencing a magnetic grand minimum.
Travis S. Metcalfe +13 more
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The Astrophysical JournalInteraction between supernova (SN) ejecta and dense circumstellar medium (CSM) with a flat density structure ( ρ ∝ r ^− ^s , s < 1.5) was recently proposed as a possible mechanism behind interacting SNe that exhibit exceptionally long rise times ...
Ryotaro Chiba, Takashi J. Moriya
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Effect of Mass Loss by Stellar Winds on the Pre-main Sequence Stage of Stellar Evolution [PDF]
, 1974 S. Cuperman, A. Sternlieb, L. Mestel
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The Astronomical JournalMass-loss influences stellar evolution, especially for massive stars with strong winds. Stellar wind bow shock nebulae driven by Galactic OB stars can be used to measure mass-loss rates ( $\dot{M}$ ).
Angelica S. Whisnant +3 more
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Mass Loss and Magnetospheres: X-rays from Hot Stars and Young Stellar Objects [PDF]
, 2001 Marc Gagné +3 more
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A Study of Stochastic Low-frequency Variability for Galactic O-type Stars
The Astrophysical Journal Supplement SeriesIn order to explore how the ubiquitous stochastic low-frequency (SLF) variability of O-type stars is related to various stellar characteristics, we compiled a sample of 150 O-type stars observed via ground-based spectroscopic surveys, alongside ...
Dong-Xiang Shen +4 more
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Magnetic interaction of stellar coronal mass ejections with close-in exoplanets: implication on planetary mass loss and Ly-$α$ transits [PDF]
Gopal Hazra +4 more
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Rotational Evolution of Classical T Tauri Stars: Models and Observations
The Astrophysical JournalWe developed a grid of stellar rotation models for low-mass and solar-type classical T Tauri stars (CTTS; 0.3 M _⊙ < M _* < 1.2 M _⊙ ). These models incorporate the star–disk interaction and magnetospheric ejections to investigate the evolution of the ...
Javier Serna +19 more
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Chromospheric dust formation, stellar masers and mass loss [PDF]
A multistep scenario which describes a plausible mass loss mechanism associated with red giant and related stars is outlined. The process involves triggering a condensation instability in an extended chromosphere, leading to the formation of cool, dense ...
Stencel, R. E.
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