Results 31 to 40 of about 375,358 (260)
Short-term variability and mass loss in Be stars I. BRITE satellite photometry of η and μ Centauri [PDF]
, 2016 Context. Empirical evidence for the involvement of nonradial pulsations (NRPs) in the mass loss from Be stars ranges from (i) a singular case (μ Cen) of repetitive mass ejections triggered by multi-mode beating to (ii) several photometric reports about ...
D. Baade +15 more
semanticscholar +1 more source
Ionisation fractions and mass-loss in O stars [PDF]
Symposium - International Astronomical Union, 1987 The most sensitive indicators of mass-loss for stars in the upper left part of the HR diagram are the UV P Cygni profiles observed in the resonance lines of common ions such as N V, Si IV, and C IV. We present here some results from a study of these lines in the high resolution IUE spectra of 197 Ï stars.
Raman K. Prinja, Ian D. Howarth
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A NEW PRESCRIPTION FOR THE MASS-LOSS RATES OF WC AND WO STARS [PDF]
, 2016 We present a new empirical prescription for the mass-loss rates of carbon- and oxygen-sequence Wolf–Rayet stars as a function of their luminosity, surface chemical composition, and initial metallicity. The new prescription is based on results of detailed
F. Tramper, H. Sana, A. de Koter
semanticscholar +1 more source
Rotational Velocity Versus Mass Loss in be Stars [PDF]
Symposium - International Astronomical Union, 1982 C IV and Si IV resonance line profiles of 21 Be, B-shell and normal stars are studied with the aim of detecting evidences for mass loss. We found that almost all our sampled stars are loosing mass. A relation between an estimated lower limit for the rate of mass loss and the observed rotational velocity was searched but not found.
V. Doazan +3 more
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A Large Fraction of Hydrogen-rich Supernova Progenitors Experience Elevated Mass Loss Shortly Prior to Explosion [PDF]
Astrophysical Journal, 2020 Spectroscopic detection of narrow emission lines traces the presence of circumstellar mass distributions around massive stars exploding as core-collapse supernovae.
R. Bruch +45 more
semanticscholar +1 more source
The Astrophysical Journal, 1970 Luminous hot stars mass loss attributed to negative effective gravities in outer parts of reversing layers from ionic UV resonance ...
L. B. Lucy, P. M. Solomon
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CONNECTING FLARES AND TRANSIENT MASS-LOSS EVENTS IN MAGNETICALLY ACTIVE STARS [PDF]
, 2015 We explore the ramification of associating the energetics of extreme magnetic reconnection events with transient mass-loss in a stellar analogy with solar eruptive events.
R. Osten, S. Wolk
semanticscholar +1 more source
Evolution of Massive Stars with Rotation and Mass Loss [PDF]
Symposium - International Astronomical Union, 2004 Rotation appears as a dominant effect in massive star evolution. It largely affects all the model outputs: inner structure, tracks, lifetimes, isochrones, surface compositions, blue to red supergiant ratios, etc. At lower metallicities, the effects of rotational mixing are larger; also, more stars may reach critical velocity, even if the initial ...
Maeder, André, Meynet, Georges
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EVOLUTION OF MASS FUNCTIONS OF COEVAL STARS THROUGH WIND-MASS LOSS AND BINARY INTERACTIONS [PDF]
, 2015 Accurate determinations of stellar mass functions and ages of stellar populations are crucial to much of astrophysics. We analyze the evolution of stellar mass functions of coeval main-sequence stars, including all relevant aspects of single and binary ...
F. Schneider +3 more
semanticscholar +1 more source
ADIABATIC MASS LOSS IN BINARY STARS. II. FROM ZERO-AGE MAIN SEQUENCE TO THE BASE OF THE GIANT BRANCH [PDF]
, 2015 In the limit of extremely rapid mass transfer, the response of a donor star in an interacting binary becomes asymptotically one of adiabatic expansion. We survey here adiabatic mass loss from Population I stars (Z = 0.02) of mass 0.10 M⊙–100 M⊙ from the ...
H. Ge +3 more
semanticscholar +1 more source