Results 61 to 70 of about 301,814 (290)

Red-giant Asteroseismology of Low-mass Population III Stars

open access: yesThe Astrophysical Journal
Low-mass stars from the first epoch of star formation may still persist in the Milky Way and its satellite dwarf galaxies today; however, their detection is confounded by surface pollution from interstellar accretion and internal mixing, which obscure ...
Thiago Ferreira   +3 more
doaj   +1 more source

Magnetic Braking during Direct Collapse Black Hole Formation

open access: yesThe Astrophysical Journal Letters, 2023
Magnetic fields are expected to be efficiently amplified during the formation of the first massive black holes via the small-scale dynamo and in the presence of strong accretion shocks occurring during gravitational collapse.
Muhammad A. Latif   +1 more
doaj   +1 more source

Population III by Popular Demand - Progress and Previews [PDF]

open access: yes, 1999
I discuss the ongoing search for stars of the Milky Way which have been referred to as members of Population III. Following a discussion of possible definitions for these stars, I consider the reasons why astronomers have undertaken this search, and list
Beers, Timothy C.
core   +3 more sources

Background Light from Population III Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1987
It has been proposed (e.g. Carr, Bond and Arnett 1984) that the first generation of stars may have been Very Massive Objects (VMOs, of mass above 200 M⊙) which existed at large redshifts and left a large fraction of the mass of the universe in black hole remnants which now provide the dynamical ‘dark matter’.
openaire   +1 more source

Preferences of Pediatric Patients and Their Caregivers for Chemotherapy‐Induced Nausea and Vomiting Control Endpoints: A Mixed Methods Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Although not always achieved, complete chemotherapy‐induced nausea and vomiting (CINV) control is the conventional goal of CINV prophylaxis. In this two‐center, mixed‐methods study, we sought to understand the preferences of adolescent patients and family caregivers for CINV control endpoints.
Haley Newman   +8 more
wiley   +1 more source

Spectral Evolution of Rotating Population III Stars

open access: yesThe Astrophysical Journal
Population III (Pop III) stars, the first generation of stars formed from primordial gas, played a fundamental role in shaping the early Universe through their influence on cosmic reionization, early chemical enrichment, and the formation of the first ...
Jake B. Hassan   +5 more
doaj   +1 more source

PAIR INSTABILITY SUPERNOVAE OF VERY MASSIVE POPULATION III STARS [PDF]

open access: yesThe Astrophysical Journal, 2014
Numerical studies of primordial star formation suggest that the first stars in the universe may have been very massive. Stellar models indicate that non-rotating Population III stars with initial masses of 140-260 Msun die as highly energetic pair-instability supernovae.
Ke-Jung Chen   +4 more
openaire   +4 more sources

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Aeos: The Impact of Population III Initial Mass Function and Star-by-star Models in Galaxy Simulations

open access: yesThe Astrophysical Journal
We explore the effect of variations in the Population III initial mass function (IMF) and star-by-star feedback on early galaxy formation and evolution using the A eos simulations. We compare simulations with two different Population III IMFs: M _char  = 
Kaley Brauer   +9 more
doaj   +1 more source

On the Formation and Interaction of Multiple Supermassive Stars in Cosmological Flows

open access: yesThe Astrophysical Journal, 2023
Supermassive primordial stars with masses exceeding ∼10 ^5 M _⊙ that form in atomically cooled halos are the leading candidates for the origin of high-redshift quasars at z > 6.
Tyrone E. Woods   +3 more
doaj   +1 more source

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