Results 41 to 50 of about 1,039,739 (296)

The First Stars

Scientific American
To appear in the Encyclopaedia of Astrophysics, Volume 2 (2026), pp.
Glover, Simon C. O., Klessen, Ralf S.
openaire   +3 more sources

Where Are the First Stars Now? [PDF]

, 2006
We use high-resolution simulations to show that the current standard paradigm for the growth of structure in the Universe predicts the formation of a galaxy like our own to differ substantially from the classic ELS and Searle/Zinn pictures. On scales larger than the Local Group, the earliest star formation was extremely inhomogeneous, suggesting that ...
White, Simon D. M., Springel, Volker
openaire   +2 more sources

Nucleosynthetic signatures of the first stars [PDF]

Nature, 2005
9 pages, 2 figures, accepted for publication in Nature; typos ...
Frebel, Anna, Aoki, Wako, Christlieb, Norbert, Ando, Hiroyasu, Asplund, Martin, Barklem, Paul S, Beers, Timothy C, Eriksson, Kjell, Fechner, Cora, Fujimoto, Masayuki Y, Honda, Satoshi, Kajino, Toshitaka, Minezaki, Takeo, Nomoto, Ken'ichi, Norris, John, Ryan, Sean G, Takada-Hidai, Masahide, Tsangarides, Stelios, Yoshii, Yuzuru   +18 more
openaire   +4 more sources

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu, Kaitlin LaGasse, Cory D. Saucier, Kimberly Raymond, Miranda Lauher‐Charest, Lauren Crowder, Beilei Cai, Mary Lisha Paul, Denise Adams   +8 more
wiley   +1 more source

The SPHINX public data release

Astronomy & Astrophysics
Context. Low-ionisation state (LIS) metal absorption lines, such as Si II λ1526, are widely used to trace the properties and dynamics of the interstellar medium (ISM) in galaxies.
Mauerhofer Valentin, Blaizot Jérémy, Garel Thibault, Verhamme Anne, Gazagnes Simon, Kerutt Josephine, Michel-Dansac Leo, Parker Kaelee S., Rosdahl Joakim, Saldana-Lopez Alberto, Trebitsch Maxime, Kimm Taysun, Ocvirk Pierre, Teyssier Romain   +13 more
doaj   +1 more source

Formation Of The First Galaxies [PDF]

, 2012
The emergence of the first stars and galaxies ended the cosmic dark ages, thus fundamentally transforming the simple initial state of the universe into one of ever increasing complexity.
Bromm, V.
core   +1 more source

The first stars: a classification of CEMP-no stars [PDF]

Astronomy & Astrophysics, 2015
We propose and apply a new classification for the CEMP-no stars, which are "carbon-enhanced metal-poor" stars with no overabundance of s-elements and with [Fe/H] generally inferior or equal to -2.5. This classification is based on the changes in abundances for the elements and isotopes involved in the CNO, Ne-Na, and Mg-Al nuclear cycles.
{Maeder} A., {Meynet} G.
openaire   +2 more sources

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman, Katherine K. Matthay, Fabienne Hollinger, Catriona Black, Ann A. Lazar, Miguel Pampaloni, Steven G. DuBois, Kieuhoa T. Vo   +7 more
wiley   +1 more source

Sensitivity of the redshifted 21 cm signal from the Dark Ages to parameters of primordial magnetic fields

Astronomy & Astrophysics
We analyse the impact of the decaying magnetic turbulence of primordial magnetic fields (PMFs) and ambipolar diffusion on the ionisation and thermal history of the Dark Ages Universe (30 ≤ z ≤ 300), and its imprint on the spectral profile of the global ...
Novosyadlyj B., Kulinich Yu., Fortuna N., Rudakovskyi A.   +3 more
doaj   +1 more source

The first stars [PDF]

Monthly Notices of the Royal Astronomical Society, 1983
Primordial clouds are likely to be remarkably uniform over stellar mass-scales in the absence of a pre-existing generation of stars. Thermal instability is found to occur during the collapse of a primordial cloud when the H2 abundance is rising and the H2 optical depth is of order unity.
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