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Stars with an initial mass on the zero age main sequence above ∼8 M⊙ are considered to be high-mass stars. They evolve in a short timescale (<25 Myr) by nuclear fusion of successively all available nuclear fuels, up to 56Fe. The most massive of them suffer heavy mass losses throug...
While the most massive star (IRS2) is already evolved, indications for high-mass pre--main-sequence evolution is found for another star (IRS N1), deeply embedded in an ultra compact HII region, in line with the different evolutionary phases observed in the corresponding HII regions. We have...
The high luminosity of the massive protostars ( ), combined with a lack of centimeter continuum emission from these sources, implies that they are not on the main sequence while they accrete the majority of their mass; instead, they may be bloated and cool. FROM AUTHOR] 展开 ...
OUR KNOWLEDGE OF HIGH-MASS STAR FORMATION AT THE DAWN OF HERSCHELdoi:10.1051/EAS:0934014Frederique MottePatrick HennebelleEDP Sciences
(i) the hyperon puzzle: how to reconcile pulsar masses of 2 M⊙with the hyperon softening of the equation of state (EoS); (ii) the masquerade problem: modern EoS for cold, high density hadronic and quark matter are almost identical; and (iii) the reconfinement puzzle: what to do when...
Subarcsecond Imaging of the High-Mass Star Forming Region Onsala 1 We report subarcsecond images of the high-mass star forming region Onsala 1 (ON 1) made with the Submillimeter Array (SMA) at 0.85 mm and the Very Large Array at 1.3 cm and 3.6 cm. ON 1 is one of the smallest ultr...
These lower-mass companions subsequently compete with the high-mass star for the same common gas reservoir and limit its overall mass growth. This process is called fragmentation-induced starvation, and explains why massive stars are usually found as members of high-order stellar systems. These ...
Massive stars are the factories that produce elements up to iron during their lifetimes and enrich the ISM with heavy trace elements during their supernova phases. Furthermore their UV radiation, stellar winds, and explosive deaths deposit much of the energy and turbulence into the ISM we see ...
Protocol to produce high-titer retrovirus for transduction of mouse bone marrow cells Jing Qu, Zhenhua Yang Article 100459 View PDF Article preview select article Generation of human pluripotent stem cell-derived fused organoids with oligodendroglia and myelin Open access Generation of human pluripotent...