Results 1 to 10 of about 927,074 (254)
Optical images of massive boson stars with nonlinear electrodynamics
European Physical Journal C: Particles and FieldsThis study investigates the optical imaging characteristics of massive boson stars based on the Einstein–Klein–Gordon theory coupled to nonlinear electrodynamics.
Xiao-Xiong Zeng +3 more
doaj +1 more source
Galaxies, 2019 Stellar evolution theory is most uncertain for massive stars. For reliable predictions of the evolution of massive stars and their final fate, solid constraints on the physical parameters, and their changes along the evolution and in different ...
Michaela Kraus
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 The young massive OB association Cygnus OB2, in the Cygnus X complex, is the closest (∼1400 pc) star-forming region to the Sun hosting thousands of young low-mass stars and up to 1000 OB stars, among which are some of the most massive stars known in our ...
M. G. Guarcello +6 more
doaj +1 more source
Reassessing the low α-massive-sequence stars in Gaia DR3 spectroscopic catalogue
Astronomy & AstrophysicsContext. Studying the chemical abundance of stars of different ages and masses allows us to trace the chemical evolution of the Milky Way. Recently, a chemically depleted young, massive stellar population was identified using the spectroscopic catalogue ...
Nandakumar G. +6 more
doaj +1 more source
Long-term Evolution in Ionization of Ejecta Illuminated by Eta Carinae
The Astrophysical JournalChanges in the flux and spectrum of Eta Carinae ( η Car) since 1900 have been attributed to the evolution of the central binary by some. Others suggest evolution in the occulting ejecta.
Augusto Damineli +8 more
doaj +1 more source
The effects of yields from binary massive stars as functions of metallicity
Astronomy & AstrophysicsThe evolution of massive stars in binary systems that undergo mass transfer during their lifetime is different from that of single stars. This might affect their chemical yields.
Pepe E. +3 more
doaj +1 more source
η Carinae’s Historical Light Curve: Evidence for Cyclic Roche Lobe Overflow from the Primary Star
The Astrophysical JournalThe large amount of ground-based photometric measurements of η Carinae obtained since 1940 have remained problematic for quantitative modeling due to the blending of flux from the stellar core and the surrounding circumstellar nebula.
Augusto Damineli +7 more
doaj +1 more source
The Timescales of Embedded Star Formation as Observed in STARFORGE
The Astrophysical JournalStar formation occurs within dusty molecular clouds that are then disrupted by stellar feedback. However, the timing and physical mechanisms that govern the transition from deeply embedded to exposed stars remain uncertain.
Tobin M. Wainer +9 more
doaj +1 more source
The Astronomical JournalThe formation of massive stars serves as an important field of study, requiring research into whether these stars need to form together within clusters of low-mass stars or whether they are able to form independently. Recently, there has been an increase
M. Kaya +5 more
doaj +1 more source
Can Dark Stars Account for the Star Formation Efficiency Excess at Very High Redshifts?
The Astrophysical JournalThe James Webb Space Telescope (JWST) has recently conducted observations of massive galaxies at high redshifts, revealing a notable anomaly in their star formation efficiency (SFE).
Lei Lei +5 more
doaj +1 more source