Results 91 to 100 of about 201,594 (302)

No evidence for Population III stars or a direct collapse black hole in the z = 6.6 Lyman α emitter ‘CR7’ [PDF]

open access: yes, 2016
The z = 6.6 Lyman α emitter ‘CR7’ has been claimed to have a Population III (Pop III) like stellar population, or alternatively, be a candidate direct collapse black hole (DCBH). In this paper, we investigate the evidence for these exotic scenarios using
R. Bowler   +6 more
semanticscholar   +1 more source

Effects of axions on Population III stars [PDF]

open access: yesAstronomy & Astrophysics, 2017
10 pages, 11 figures, accepted for publication in A& ...
Choplin, Arthur   +5 more
openaire   +5 more sources

Bone Mineral Density After Contemporary Treatment for Acute Lymphoblastic Leukaemia: A Matched Cross‐Sectional Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Reduced bone mineral density (BMD) has been reported in survivors of childhood and young adult acute lymphoblastic leukaemia (ALL); however, data from cohorts treated with contemporary protocols and including matched controls remain limited.
Karen Schow Jensen   +10 more
wiley   +1 more source

Intermediate-mass black holes and contribution to extragalactic background light from Population III stars in Milky Way-like galaxies

open access: yesAstronomy & Astrophysics
The mass range of observed black holes extends from stellar-mass to supermassive scales, yet the existence of objects in the intermediate-mass range of 102–105 M⊙ remains unconfirmed.
Mkrtchyan A., Horns D.
doaj   +1 more source

Where are the population III stars

open access: yesThe Astrophysical Journal, 1982
There appears to be no observational evidence for the existence of true Population III stars (zero-metal abundance, first generation stars) in our Galaxy. They may only be found in an earlier generation of galaxies which formed in the denser regions of space, such as the Virgo cluster.
openaire   +1 more source

Chemotherapy for Spinal Cord Intramedullary Pediatric Low‐Grade Glioma—A Systematic Literature Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko   +5 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

Evolution of massive Population III stars with rotation and magnetic fields [PDF]

open access: yes, 2012
[Abridged] We present a new grid of massive population III star models including the effects of rotation on the stellar structure and chemical mixing, and magnetic torques for the transport of angular momentum.
Sung-Chul Yoon, A. Dierks, N. Langer
semanticscholar   +1 more source

Metal pollution of low-mass Population III stars through accretion of interstellar objects like ‘Oumuamua [PDF]

open access: yesNippon Tenmon Gakkai obun kenkyu hokoku, 2018
We calculate accretion mass of interstellar objects (ISOs) like `Oumuamua onto low-mass population III stars (Pop.~III survivors), and estimate surface pollution of Pop.~III survivors. An ISO number density estimated from the discovery of `Oumuamua is so
A. Tanikawa, T. Suzuki, Y. Doi
semanticscholar   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess   +5 more
wiley   +1 more source

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