Results 81 to 90 of about 11,751 (112)

A new comprehensive set of elemental abundances in DLAs III. Star formation histories

, 2007
We obtained comprehensive sets of elemental abundances for eleven damped Ly-alpha systems (DLAs) at z_DLA=1.7-2.5. In Paper I of this series, we showed for three DLA galaxies that we can derive their star formation histories and ages from a detailed ...
Adelberger, Annibali, Bradamante, Calura, Calura, Calura, Chen, Chiappini, Chiappini, Chiappini, Conselice, Cora, Dessauges-Zavadsky, Dessauges-Zavadsky, Ellison, F. Calura, F. Matteucci, François, Fynbo, Fynbo, Herbert-Fort, Hou, Howk, Iwata, Izotov, J. X. Prochaska, Jakobsson, Jimenez, Kennicutt, Kobulnicky, Kunth, Le Brun, Ledoux, Levshakov, Lu, M. Dessauges-Zavadsky, Mathlin, Matteucci, Meynet, Møller, Nomoto, Nomoto, Petitjean, Pettini, Pettini, Pettini, Pettini, Pettini, Prochaska, Prochaska, Prochaska, Prochaska, Prochaska, Prochaska, Péroux, Rao, Recchi, Recchi, Romano, Russell, S. D'Odorico, Salpeter, Savage, Savaglio, Scalo, Schulte-Ladbeck, Sofia, Steidel, Steidel, Steidel, van den Hoeck, Viegas, Vladilo, Vladilo, Vladilo, Vladilo, Vladilo, Weatherley, Wolfe, Wolfe, Wolfe, Wolfe, Wolfe   +82 more
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On the Structural Differences between Disk and Dwarf Galaxies

, 2005
Gas-rich dwarf and disk galaxies overlap in numerous physical quantities that make their classification subjective. We report the discovery of a separation between dwarfs and disks into two unique sequences in the mass (luminosity) versus scale length ...
Binggeli B., Brosch N., Carignan C., de Blok W. J. G., Fall S. M., James M. Schombert, Kauffmann G., Lambas D. G., Papaderos P., Sleath J. P.   +9 more
core   +1 more source

Stellar populations in the dwarf irregular galaxy Leo A

, 2021
Nykštukinės galaktikos yra dominuojantis galaktikų tipas Visatoje, todėl jos ypač svarbios galaktikų formavimosi ir evoliucijos tyrimų kontekste. Disertacijoje atliktas žvaigždžių populiacijų tyrimas netaisyklingoje nykštukinėje galaktikoje Leo A. Tiriant senas žvaigždžių populiacijas buvo atrastos šviesios asimptotinės milžinių sekos žvaigždės bei ...
openaire   +1 more source

Surface Photometry of Dwarf Irregular Galaxies in Different Environments

Astrophysics, 2019
14 pages, 3 figures, 2 ...
openaire   +2 more sources

87th Annual Meeting of the Meteoritical Society 2025: Abstracts

Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Empirical Dependencies for Irregular and Elliptical Dwarf Galaxies

This study examines the physical properties and correlations for dwarf galaxies, including irregular (dIrr) and elliptical (dE) types. Data from the NASA/IPAC and HyperLEDA databases were used to analyze relationships among parameters such as distance to galaxy, absolute magnitude of galaxy, mass of galaxy, and surface brightness of galaxy using ...
K.T. Tillaboev, I.U. Tadjibaev
openaire   +1 more source

A new dwarf irregular galaxy in the constellation Phoenix.

The Astrophysical Journal, 1977
R. Canterna, P. J. Flower
openaire   +1 more source

Chemodynamical Evolution of Dwarf Irregular Galaxies

, 2002
Hensler, Gerhard, Rieschick, Andreas
openaire   +1 more source

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Abundances in dwarf irregular galaxies

Publications of the Astronomical Society of the Pacific, 1986
The results of abundance studies of dwarf irregular galaxies and similar objects are reviewed with special attention to variations in the CNO element group. Observations of the forbidden N II and semiforbidden C III lines in the most metal-poor galaxy known, IZw 18, are presented for the first time and CNO abundances are derived via a photoionization ...
openaire   +1 more source