Results 11 to 20 of about 596,259 (322)

Star formation and chemical enrichment in protoclusters

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT We examine star formation and chemical enrichment in protoclusters (PCs) using cosmological zoom-in hydrodynamic simulations. We find that the total star formation rate (SFR) in all PC ($\gt 10^{14.4}\, h^{-1}$ M⊙) reaches $\gt 10^4\, \mathrm{M}_\odot \mathrm{yr}^{-1}$ at z = 3, equivalent to the observed PCs.
Keita Fukushima, Kentaro Nagamine, Ikkoh Shimizu   +2 more
openaire   +2 more sources

Chemical substructures that enrich for biological activity [PDF]

Bioinformatics, 2008
Abstract Motivation: Certain chemical substructures are present in many drugs. This has led to the claim of ‘privileged’ substructures which are predisposed to bioactivity. Because bias in screening library construction could explain this phenomenon, the existence of privilege has been controversial. Results: Using diverse
Klekota, Justin, Roth, Fritz
openaire   +3 more sources

Simulations of Cosmic Chemical Enrichment with Hypernova [PDF]

, 2006
We simulate cosmic chemical enrichment with a hydrodynamical model including supernova and hypernova feedback. We find that the majority of stars in present-day massive galaxies formed in much smaller galaxies at high redshifts, despite their late ...
Kobayashi, Chiaki
core   +2 more sources

MBROLE 2.0—functional enrichment of chemical compounds [PDF]

Nucleic Acids Research, 2016
Metabolites Biological Role (MBROLE) is a server that performs functional enrichment analysis of a list of chemical compounds derived from a metabolomics experiment, which allows this list to be interpreted in biological terms. Since its release in 2011, MBROLE has been used by different groups worldwide to analyse metabolomics experiments from a ...
López-Ibáñez, Javier, Pazos, Florencio, Chagoyen, Mónica   +2 more
openaire   +2 more sources

SNe heating and the chemical evolution of the intra-cluster medium [PDF]

, 2002
We compute the chemical and thermal history of the intra-cluster medium in rich and poor clusters under the assumption that supernovae (I, II) are the major responsible both for the chemical enrichment and the heating of the intra-cluster gas.
Andrea Biviano, Antonio Pipino, Arimoto, Arnaud, Arnaud, Arnaud, Bertin, Bialek, Borgani, Borgani, Bower, Bower, Bradamante, Butcher, Cappellaro, Carollo, Cavaliere, Chiosi, Cioffi, Cox, David, De Grandi, Dressler, Eke, Elbaz, Ellis, Evrard, Fasano, Finoguenov, Fioc, Francesca Matteucci, Fukazawa, Gibson, Gibson, Girardi, Greggio, Helsdon, Hinnes, Ishimaru, Jaffe, Jimenez, Kaiser, Kravtsov, Larson, Lloyd-Davies, Loewenstein, Loewenstein, Martinelli, Martinelli, Matsumoto, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Menanteau, Mobasher, Mushotzky, Nomoto, Padovani, Poggianti, Ponman, Recchi, Renzini, Renzini, Renzini, Renzini, Rothenflug, Salpeter, Sandage, Sarazin, Schechter, Stefano Borgani, Tamura, Tozzi, Tutukov, Valageas, Vigroux, Voit, White, White, White, Woosley, Wu   +85 more
core   +2 more sources

The First Supernova Explosions: Energetics, Feedback, And Chemical Enrichment [PDF]

, 2007
We perform three-dimensional smoothed particle hydrodynamics simulations in a realistic cosmological setting to investigate the expansion, feedback, and chemical enrichment properties of a 200M(circle dot) pair-instability supernova in the high-redshift ...
Bromm, Volker, Greif, Thomas H., Johnson, Jarrett L., Klessen, Ralf S.   +3 more
core   +1 more source

Simulations of Cosmic Chemical Enrichment [PDF]

Proceedings of the International Astronomical Union, 2006
AbstractWe simulate cosmic chemical enrichment with a hydrodynamical model including supernova and hypernova feedback. We find that the majority of stars in present-day massive galaxies formed in much smaller galaxies at high redshifts, despite their late assembly times.
openaire   +1 more source

Genetic mechanism of high-quality shale gas reservoirs in the Wufeng–LongmaxiFms in the Sichuan Basin

Natural Gas Industry B, 2021
The Upper Ordovician WufengFm and the Lower Silurian LongmaxiFm are important strata for shale gas exploration and development in the Sichuan Basin, but the genetic mechanism, evolutionary history and the controlling effect of mineral diagenetic ...
Haikuan Nie, Zhiliang He, Guangxiang Liu, Wei Du, Ruyue Wang, Guangrong Zhang   +5 more
doaj   +1 more source

Chemical enrichment and physical conditions in I Zw 18 [PDF]

, 2013
Abridged. Low-metallicity star-forming dwarf galaxies are prime targets to understand the chemical enrichment of the interstellar medium. The HI region provides important constraints on the dispersal and mixing of heavy elements released by successive ...
Heap, Sara, Hubeny, Ivan, Kunth, Daniel, Lebouteiller, Vianney   +3 more
core   +5 more sources

Chemical enrichment at high redshifts [PDF]

Pramana, 1999
We have tried to understand the recent observations related to metallicity in Ly-α forest clouds in the framework of the two component model. The model consists of mini-halos having circular velocities smaller than ∼ 55 km s−1, with no star formation and galactic halos with higher circular velocities ≤ 250 km s−1, having clouds, star formation and ...
openaire   +1 more source