Results 211 to 220 of about 5,644 (256)

On the emergence of metabolism: the evolution of proteins that powered life. [PDF]

Philos Trans R Soc Lond B Biol Sci
Nanda V, Siess J, Jagilinki BP, Hazen RM, Kamerlin SCL, Koder R, Noy D, Silberg J, Tezcan FA, Ulijn R, Yee N, Falkowski P.   +11 more
europepmc   +1 more source

Direct single-molecule detection and super-resolution imaging with a low-cost portable smartphone-based microscope. [PDF]

Nat Commun
Loretan M, Barella M, Fuchs N, Kocabey S, Kołątaj K, Stefani FD, Acuna GP.   +6 more
europepmc   +1 more source

Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

Fujimoto S, Ouchi M, Kohno K, Valentino F, Giménez-Arteaga C, Brammer G, Furtak L, Kohandel M, Oguri M, Pallottini A, Richard J, Zitrin A, Bauer F, Boylan-Kolchin M, Dessauges-Zavadsky M, Egami E, Finkelstein S, Ma Z, Smail I, Watson D, Hutchison T, Rigby J, Welch B, Ao Y, Bradley L, Caminha G, Caputi K, Espada D, Endsley R, Fudamoto Y, González-López J, Hatsukade B, Koekemoer A, Kokorev V, Laporte N, Lee M, Magdis G, Ono Y, Rizzo F, Shibuya T, Shimasaku K, Sun F, Toft S, Umehata H, Wang T, Yajima H.   +45 more
europepmc   +1 more source

A binary merger product as the direct progenitor of a Type II-P supernova

Niu* Z, Sun* N, Zapartas* E, Souropanis D, Cui Y, Maund JR, Andrews JJ, Briel MM, Fraser M, Gossage S, Kruckow MU, Liotine C, Liu Z, Srivas PM, Teng E, Wang X, Yang Y, Liu J.   +17 more
europepmc   +1 more source

Galaxy Formation and Chemical Evolution

International Journal of Astronomy and Astrophysics, 2014
14 pages, 5 ...
S Sahijpal
exaly   +4 more sources

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Chemical Evolution of the Galaxy

Annual Review of Astronomy and Astrophysics, 1991
Since the discovery of the cosmic microwave background ( 1 84), it is gen­ erally assumed that the universe originated from a hot big bang (78). Detailed nucleosynthesis calculations based on the hot big bang model (e.g. 4, 1 82, 221 ) showed that no element heavier than 9Be could have been synthesized primordially with an abundance exceeding 101 4 by ...
exaly   +2 more sources

Chemical Evolution of Galaxies

Annual Review of Astronomy and Astrophysics, 1976
The various nucleosynthetic processes needed to account for the formation of the different nuclear species have been described in the previous chapters as well as the location of these nucleosynthetic events. At the beginning of this monograph, the evolution of the matter which constitutes the celestial bodies such as planets, stars and galaxies was ...
Audouze, J., Tinsley, B.M.
openaire   +2 more sources

Galaxy chemical evolution models: the role of molecular gas formation [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
In our classical grid of multiphase chemical evolution models, star formation in the disc occurs in two steps: first, molecular gas forms, and then stars are created by cloud-cloud collisions or interactions of massive stars with the surrounding ...
M Molla, Angeles I Diaz, Y Ascasibar
exaly   +2 more sources

The chemical evolution of the Galaxy

Nature, 1986
The distribution of enriched material in the stars and gas of our Galaxy contains information pertaining to the chemical evolution of the Milky Way from its formation epoch to the present, providing general constraints on theories of galaxy formation. Detailed studies of the metallicities of well-defined samples of long-lived G-dwarf stars in the solar
Rosemary F G Wyse, Gilmore Gérard, Wyse Rosemary F G   +2 more
exaly   +2 more sources