Results 31 to 40 of about 18,087 (218)
Evolution of Low‐Mass Population III Stars [PDF]
The Astrophysical Journal, 2007 We present the evolutionary models of metal-free stars in the mass range from 0.8 to 1.2 Msun with up-to-date input physics. The evolution is followed to the onset of hydrogen mixing into a convection, driven by the helium flash at red giant or asymptotic giant branch phase.
Suda, Takuma +2 more
openaire +2 more sources
Population III star clusters in the reionized Universe [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 13 pages, 6 figures, accepted for publication in ...
openaire +3 more sources
The Persistence of Population III Star Formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We present a semi-analytic model of star formation in the early universe, beginning with the first metal-free stars. By employing a completely feedback-limited star formation prescription, stars form at maximum efficiency until the self-consistently calculated feedback processes halt formation.
Richard H Mebane +2 more
openaire +4 more sources
Magnetohydrodynamics of Population III Star Formation [PDF]
AIP Conference Proceedings, 2010 The evolution of collapsing primordial clouds and the formation of Population III (Pop III) protostars are investigated with three‐dimensional ideal MHD simulations. We follow the collapse of parsec‐sized primordial clouds down to the formation of protostars on sub‐AU scales.
Masahiro N. Machida +5 more
openaire +1 more source
The most massive Population III stars
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Recent data from the JWST suggest that there are realistic prospects for detecting the earliest generation of stars at redshift ∼20. These metal-poor, gaseous Population III (Pop III) stars are likely in the mass range $10\!-\!10^3\, {\rm M}_{\odot }$ .
Chantavat, Teeraparb +2 more
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld +5 more
wiley +1 more source
Central Nervous System Tumors Among Infants in Canada: A Report From CYP‐C
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Central nervous system (CNS) tumors in infants are rare, pose unique clinical challenges, and lack large‐scale evidence‐based data to guide management. This study seeks to describe CNS tumors in Canadian infants and to compare their outcomes with those of older children.
Samuel Sassine +17 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani +7 more
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
Magnetorotational Collapse of Population III Stars [PDF]
Publications of the Astronomical Society of Japan, 2007 Abstract We performed a series of two-dimensional magnetorotational core-collapse simulations of Population III stars. Changing the initial distributions of the rotation and magnetic fields prior to collapse in a parametric manner, we computed 19 models.
Suwa, Yudai +3 more
openaire +2 more sources