[PDF] Top 20 Rotation in the ZAMS: Be and Bn stars
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Rotation in the ZAMS: Be and Bn stars
... P Be (M ) = constant. 3. Some Bn stars might be progenitors of Be stars Figure 3a shows the apparent V=7 magnitude limited counts of dwarf Be stars relative ... Voir le document complet
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ZAMS rotational velocities of Be/Oe stars and LGRBs progenitors in the Magellanic Clouds.
... 2. ZAMS rotational velocities distributions for observed Be/Oe stars in the SMC (black points and curve) compared with theoretical distributions from Ekstr¨ om’s et ...evolution ... Voir le document complet
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B \& Be stars in the Magellanic Clouds: rotation, evolution and variability.
... 1 Rotation, star formation conditions, metallicity and evolution in B & Be ...determined the fundamental parameters (effective temperature, surface gravity and projected ... Voir le document complet
3
Convection and differential rotation properties of G and K stars computed with the ASH code
... following the Taylor-Proudman constraint. From simulations of the solar convection zone ...that the Taylor-Proudman constraint can be broken by a thermal wind driven by very small latitudinal ... Voir le document complet
12
Can massive Be/Oe stars be progenitors of long gamma ray bursts?
... (2005) and Yoon et al. (2006) foresee that the number of GRBs must grow as the redshift increases, which seems to be confirmed observa- tionally (Fryer et ...still be that the ... Voir le document complet
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Origin and evolution of magnetic field in PMS stars: influence of rotation and structural changes
... DISCUSSION AND CONCLUSION During the PMS phase, between the protostellar phase and the ZAMS, the stellar radius decreases due to gravi- tational ...As the star ... Voir le document complet
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Surface rotation of Kepler red giant stars
... contains the intermediate mass ...mass stars (M > 2.0 M ) have a wide range of rotation rates on the main sequence (Zorec & Royer ...body rotation and solar-like angular ... Voir le document complet
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Fundamental parameters of Be stars located in the seismology fields of COROT
... for the target selection of COROT Be stars and, further, will also be very useful when analyzing the huge amount of data that COROT will ...of the fast rotation ... Voir le document complet
26
Long Baseline Interferometry of Be Stars
... for the understanding of the Be star phenomenon is the rapid increase of our knowledge of the central star ...itself. Be stars are statistically rapid rotators and ... Voir le document complet
9
Massive Be and Oe stars at low metallicity and long gamma ray bursts
... fast rotation and the rotational mix- ing of chemical elements, massive stars can undergo quasi-chemically homogeneous evo- lution to end up as helium WR stars satisfy- ing the ... Voir le document complet
7
CoRoT's view on variable B8/9 stars: spots versus pulsations. Evidence for differential rotation in HD 174648
... if the location of the spots and the star’s in- clination angle resulting from the best fitting model are compat- ible with the amplitude of the ...determine ... Voir le document complet
15
Effects of metallicity, star-formation conditions, and evolution in B and Be stars. II: Small Magellanic Cloud, field of NGC 330.
... B and Be stars populations in the LMC to the ...SMC. The rotational velocities of massive stars and the evolutionary status of Be stars ... Voir le document complet
15
Effects of metallicity, star formation conditions and evolution in B and Be stars. I: Large Magellanic Cloud, field of NGC 2004.
... words. Stars: early-type – Stars: emission-line, Be – Galaxies: Magellanic Clouds – Stars: fundamental parameters – Stars: evolution – Stars: rotation ...Introduction ... Voir le document complet
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Massive Oe/Be stars at low metallicity: Candidate progenitors of long GRBs?
... massive stars in low-metallicity environments: (i) The mass (and angular momentum) loss rates are lower and (ii), all else being equal, the radii are ...clusters in ... Voir le document complet
3
Study of magnetic fields in massive stars and intermediate-mass stars
... for the different years of observation of β ...with the structured magnetic field produced by a global dynamo. The lack of any rotation period estimate available in the ... Voir le document complet
185
Effects of metallicity, star formation conditions and evolution of B & Be stars.
... determined the fundamental parameters (T eff , log g, V sin i) with the GIRFIT least squares procedure, which is able to handle large datasets and was previously developed and described by ... Voir le document complet
8
Spectro-interferometric observations of a sample of Be stars Setting limits to the geometry and kinematics of stable Be disks
... progress in the understanding of the physical processes responsible for the mass ejection and to test the hypothesis that they depend on stellar parameters, Meilland et ...of ... Voir le document complet
30
VLTI/MIDI observations of 7 classical Be stars
... – Stars: emission-line, Be – Stars: winds, outflows, disks – Stars: individual (p Car, ζ Tau, κ CMa, α Col, δ Cen, β CMi, α Ara) – Stars: circumstellar matter ...Classical Be ... Voir le document complet
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Be stars: one ring to rule them all ?
... In the preceding discussion we did not consider the problem of constructing CE in (or near) Keplerian ...rotation. Be stars are fast, though under-critical, rotators ... Voir le document complet
11
Review about populations of Be stars: stellar evolution of extreme stars
... launching the matter in orbit, while Cranmer (2009) shows that depending on the Ω/Ω c value the ejected matter will be part of the wind or will form a ...that the ... Voir le document complet
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