Results 51 to 60 of about 1,197,942 (368)

Photoevaporation and Close Encounters: How the Environment around Cygnus OB2 Affects the Evolution of Protoplanetary Disks

open access: yesThe Astrophysical Journal Supplement Series, 2023
In our Galaxy, star formation occurs in a variety of environments, with a large fraction of stars formed in clusters hosting massive stars. OB stars have an important feedback on the evolution of protoplanetary disks orbiting around nearby young stars ...
M. G. Guarcello   +12 more
doaj   +1 more source

Massive stars in transition [PDF]

open access: yesEAS Publications Series, 2004
We discuss the various post-main sequence phases of massive stars, focusing on Wolf-Rayet stars, Luminous Blue Variables, plus connections with other early-type and late-type supergiants. End states for massive stars are also investigated, emphasising connections between Supernovae originating from core-collapse massive stars and Gamma Ray Bursts.
openaire   +4 more sources

The Complex Upper HR Diagram

open access: yesGalaxies, 2019
Several decades of observations of the most massive and most luminous stars have revealed a complex upper HR Diagram, shaped by mass loss, and inhabited by a variety of evolved stars exhibiting the consequences of their mass loss histories.
Roberta M. Humphreys
doaj   +1 more source

A Catalog of New Slowly Pulsating B-type Stars

open access: yesThe Astrophysical Journal Supplement Series, 2023
This paper reports the discovery of new slowly pulsating B-type stars. Based on the photometric, spectral, and astrometric data of the TESS, LAMOST, and Gaia surveys, we have found 286 new slowly pulsating B-type (SPB) stars and 21 candidates.
Xiang-dong Shi   +3 more
doaj   +1 more source

Very massive stars, pair-instability supernovae and intermediate-mass black holes with the sevn code [PDF]

open access: yes, 2017
Understanding the link between massive ($\gtrsim 30$ M$_{\odot{}}$) stellar black holes (BHs) and their progenitor stars is a crucial step to interpret observations of gravitational-wave events.
M. Spera, M. Mapelli
semanticscholar   +1 more source

The Evolution of Massive Helium Stars, Including Mass Loss [PDF]

open access: yesAstrophysical Journal, 2019
The evolution of helium stars with initial masses in the range 1.6–120 is studied, including the effects of mass loss by winds. These stars are assumed to form in binary systems when their expanding hydrogenic envelopes are promptly lost just after ...
S. Woosley
semanticscholar   +1 more source

Very massive runaway stars from three-body encounters [PDF]

open access: yes, 2010
Very massive stars preferentially reside in the cores of their parent clusters and form binary or multiple systems. We study the role of tight very massive binaries in the origin of the field population of very massive stars.
Aarseth   +88 more
core   +1 more source

Massive star outflows [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
To be published in the IAU Symposium 227 conference proceedings: Massive Star Birth: A Crossroads of Astrophysics See http://www.aoc.nrao.edu/~dshepher/science.shtml for a ...
openaire   +4 more sources

Understanding the Death of Massive Stars Using an Astrophysical Transients Observatory

open access: yesFrontiers in Astronomy and Space Sciences, 2018
The death of massive stars, manifested as gamma-ray bursts and core-collapse supernovae, critically influence how the universe formed and evolves. Despite their fundamental importance, our understanding of these enigmatic objects is severely limited.
Peter W. A. Roming   +26 more
doaj   +1 more source

RCW36: characterizing the outcome of massive star formation [PDF]

open access: yes, 2013
Massive stars play a dominant role in the process of clustered star formation, with their feedback into the molecular cloud through ionizing radiation, stellar winds and outflows.
Balog, Z.   +8 more
core   +5 more sources

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