Results 51 to 60 of about 887,903 (202)

Observational Properties of 155 O- and B-type Massive Pulsating Stars

The Astrophysical Journal Supplement Series, 2023
O- and B-type (OB-type) pulsating stars are important objects for studying the structure and evolution of massive stars through asteroseismology. A large amount of data from various sky surveys provides an unprecedented opportunity to search for and ...
Xiang-dong Shi, Sheng-bang Qian, Li-ying Zhu, Liang Liu, Lin-jia Li, Lei Zang   +5 more
doaj   +1 more source

A Study of Abundance Patterns in the Sextans and Sculptor Dwarf Spheroidal Galaxies

The Astrophysical Journal
In this work, we employ a multicomponent decomposition model to study the Sextans and Sculptor dwarf spheroidal galaxies, which have distinct evolutionary histories.
Shuaishuai Yang, Shichao Zhang, Lu Zhang, Hongjie Li   +3 more
doaj   +1 more source

Hot Stars in Stellar Populations of Galaxies

Galaxies
Star-forming galaxies are hosts of dominant populations of recently formed, hot, massive stars, which give rise to conspicuous stellar spectral features and provide the ionizing fluxes. Strong outflows of these stars shape their properties.
Claus Leitherer
doaj   +1 more source

Evolution of Massive Population III Stars

Acta Polytechnica CTU Proceedings, 2014
While the evolution of massive stars in the local Universe is dominated by mass-loss, the evolution of massive Population III stars should be dominated by rotation.
Sung-Chul Yoon
doaj   +1 more source

Signatures of Mass Segregation from Competitive Accretion and Monolithic Collapse

The Astrophysical Journal
The two main competing theories proposed to explain the formation of massive (>10 M _⊙ ) stars—competitive accretion and monolithic core collapse—make different observable predictions for the environment of the massive stars during, and immediately after,
Richard J. Parker, Emily J. Pinson, Hayley L. Alcock, James E. Dale   +3 more
doaj   +1 more source

Isolated massive star candidates in NGC 4242 with the Galaxy UV Legacy Project

Astronomy & Astrophysics
Context. There is considerable debate about the formation of massive stars, including whether a high-mass star must always form with a population of low-mass stars, or if it can also form in isolation.
Facchini Pietro, Grebel Eva K., Pasquali Anna, Sabbi Elena, Meena Beena, Bajaj Varun, Gallagher III John S., Elmegreen Bruce G., Bianchi Luciana, Adamo Angela, Calzetti Daniela, Cignoni Michele, Crowther Paul A., Eldridge Jan J., Gennaro Mario, Klessen Ralf S., Smith Linda J., Wofford Aida, Zeidler Peter   +18 more
doaj   +1 more source

EVOLUTION AND FINAL FATE OF MASSIVE STARS [PDF]

, 2022
This Master thesis provides a theoretical exploration of the evolution of massive stars, with initial masses 10
Volpato, Guglielmo
core  

Ultraviolet observations of massive stars and the instrumentation to come

, 2022
Acuerdos transformativos CRUE 2025 Symposium S361: Massive Stars Near and Far. IAU Symposium 387, 15-19 April 2024, Durham, United KingdomThe wealth of information obtained about massive stars from observations at ultraviolet (UV) wavelengths has been ...
Gómez De Castro, Ana Inés
core   +1 more source

Dust around Massive Stars Is Agnostic to Galactic Environment: New Insights from PHAT/BEAST

The Astrophysical Journal
Resolving the environments of massive stars is crucial for understanding their formation mechanisms and their impact on galaxy evolution. An important open question is whether massive stars found in diffuse regions outside spiral arms formed in situ or ...
Christina Willecke Lindberg, Claire E. Murray, Julianne J. Dalcanton, J. E. G. Peek, Karl D. Gordon   +4 more
doaj   +1 more source

GES. OB stars in the Carina Nebula [Dataset]

, 2023
The Carina Nebula is one of the major massive star-forming regions in the Galaxy. Its relatively nearby distance (2.35kpc) makes it an ideal laboratory for the study of massive star formation, structure and evolution both for individual stars and stellar
Alfaro, E. J., Sota Ballano, Alfredo
core   +1 more source