Results 11 to 20 of about 8,494 (217)

Monotonicity of the Cores of Massive Stars

open access: yesThe Astrophysical Journal, 2023
Abstract Massive stars are linked to diverse astronomical processes and objects including star formation, supernovae and their remnants, cosmic rays, interstellar media, and galaxy evolution. Understanding their properties is of primary importance for modern astronomy, and finding simple rules that characterize them is especially useful.
Koh Takahashi   +2 more
openaire   +4 more sources

Developments in Physics of Massive Stars [PDF]

open access: yesProceedings of the International Astronomical Union, 2007
AbstractNew constraints on stellar models are provided by large surveys of massive stars, interferometric observations and asteroseismology. After a review of the main results so far obtained, we present new results from rotating models and discuss comparisons with observed features. We conclude that rotation is a key feature of massive star physics.
Meynet, G   +5 more
openaire   +3 more sources

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   +2 more sources

Massive star and star cluster formation [PDF]

open access: yesProceedings 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   +2 more sources

Nucleosynthesis of 60Fe in massive stars [PDF]

open access: yesNew 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.
Limongi, M., Chieffi, A.
openaire   +2 more sources

Massive stars in their death throes [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008
The study of the stars that explode as supernovae used to be a forensic study, working backwards from the remnants of the star. This changed in 1987 when the first progenitor star was identified in pre-explosion images. Currently, there are eight detected progenitors with another 21 non-detections, for which only a limit on the pre-explosion luminosity
openaire   +3 more sources

Presupernova structure of massive stars [PDF]

open access: yesAstrophysics and Space Science, 2011
Proceedings for invited talk at High Energy Density Laboratory Astrophysics conference, Caltech, March 2010.
Meakin, Casey A.   +2 more
openaire   +2 more sources

Models for the formation of massive stars [PDF]

open access: yes, 2009
The formation of massive stars is currently an unsolved problems in astrophysics. Understanding the formation of massive stars is essential because they dominate the luminous, kinematic, and chemical output of stars. Furthermore, their feedback is likely to play a dominant role in the evolution of molecular clouds and any subsequent star formation ...
Krumholz, Mark R., Bonnell, Ian A.
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Massive Stars in the Galactic Center [PDF]

open access: yesProceedings of the International Astronomical Union, 2007
AbstractWe present results of two studies aiming at better understanding the properties of massive stars in the Galactic Center. We focus on the youngest and oldest of the three massive clusters harboring this region, namely the Arches and central cluster.
Martins, F.   +6 more
openaire   +2 more sources

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