Results 71 to 80 of about 1,197,942 (368)
Unveiling the Evolutionary State of Three B Supergiant Stars: PU Gem, ϵ CMa, and η CMa
Galaxies, 2023 We aim to combine asteroseismology, spectroscopy, and evolutionary models to establish a comprehensive picture of the evolution of Galactic blue supergiant stars (BSG). To start such an investigation, we selected three BSG candidates for our analysis: HD
Julieta Paz Sánchez Arias +5 more
doaj +1 more source
Properties of massive stars in four clusters of the VVV survey
, 2015 The evolution of massive stars is only partly understood. Observational constraints can be obtained from the study of massive stars located in young massive clusters.
Borissova, J. +4 more
core +3 more sources
Maser, infrared and optical emission for late-type stars in the Galactic plane [PDF]
, 2017 Radio astrometric campaigns using VLBI have provided distances and proper motions for masers associated with young massive stars (BeSSeL survey). The ongoing BAaDE project plans to obtain astrometric information of SiO maser stars located in the inner ...
Brown, A. G. A. +6 more
core +3 more sources
Dynamical ejections of massive stars from young star clusters under diverse initial conditions [PDF]
, 2016 We study the effects of initial conditions of star clusters and their massive star population on dynamical ejections of massive stars from star clusters up to an age of 3 Myr.
Seungkyung Oh, P. Kroupa
semanticscholar +1 more source
Nucleosynthesis of 60Fe in massive stars [PDF]
New Astronomy Reviews, 2006 We discuss at some extent the production of Fe60 in massive stars in the range between 11 and 120 Msun both in the hydrostatic and explosive stages. We also compare the Fe60/Al26 gamma-ray line flux ratio obtained according to the present calculations to the detected value reported by INTEGRAL/SPI.
Alessandro Chieffi +3 more
openaire +4 more sources
Hypervelocity binary stars: smoking gun of massive binary black holes
, 2007 The hypervelocity stars recently found in the Galactic halo are expelled from the Galactic center through interactions between binary stars and the central massive black hole or between single stars and a hypothetical massive binary black hole.
D. N. C. Lin +4 more
core +1 more source
Massive binaries and the enrichment of the interstellar medium in globular clusters [PDF]
, 2009 Abundance anomalies observed in globular cluster stars indicate pollution with material processed by hydrogen burning. Two main sources have been suggested: asymptotic giant branch stars and massive stars rotating near the break-up limit.
Bisikalo +22 more
core +1 more source
PARSEC evolutionary tracks of massive stars up to 350 M ☉ at metallicities 0.0001 ≤ Z ≤ 0.04 [PDF]
, 2015 We complement the PARSEC data base of stellar evolutionary tracks with new models of massive stars, from the pre-main sequence phase to the central carbon ignition. We consider a broad range of metallicities, 0.0001$\leq Z \leq$0.04 and initial masses up
Yang Chen +5 more
semanticscholar +1 more source
Massive star and star cluster formation [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractI review the status of massive star formation theories: accretion from collapsing, massive, turbulent cores; competitive accretion; and stellar collisions. I conclude the observational and theoretical evidence favors the first of these models.
openaire +4 more sources
Fragmentation in Massive Star Formation [PDF]
Science, 2004 Studies of evolved massive stars indicate that they form in a clustered mode. During the earliest evolutionary stages, these regions are embedded within their natal cores. Here we present high-spatial-resolution interferometric dust continuum observations disentangling the cluster-like structure of a young massive star–forming region.
Henrik Beuther, Peter Schilke
openaire +4 more sources