Results 31 to 40 of about 271,788 (231)

CHEMICAL ABUNDANCES IN CLUSTERS OF GALAXIES

, 1995
25 pages of uuencoded compressed PostScript. 4 PostScript figures and 4 PostScript tables available from http://www-astro.physics.ox.ac.uk/~bkg/gibson.html Accepted for publication in Astronomy & Astrophysics.
MATTEUCCI, MARIA FRANCESCA, Gibson, B. K.   +1 more
openaire   +3 more sources

The galaxy clustering crisis in abundance matching [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
Abstract Galaxy clustering on small scales is significantly underpredicted by sub-halo abundance matching (SHAM) models that populate (sub-)haloes with galaxies based on peak halo mass, Mpeak. SHAM models based on the peak maximum circular velocity, Vpeak, have had much better success.
Duncan Campbell, Frank C van den Bosch, Nikhil Padmanabhan, Yao-Yuan Mao, Andrew R Zentner, Johannes U Lange, Fangzhou Jiang, Antonia Sierra Villarreal   +7 more
openaire   +2 more sources

VLT/FLAMES high-resolution chemical abundances in Sculptor: a textbook dwarf spheroidal galaxy [PDF]

, 2019
We present detailed chemical abundances for 99 red-giant branch stars in the centre of the Sculptor dwarf spheroidal galaxy, which have been obtained from high-resolution VLT/FLAMES spectroscopy. The abundances of Li, Na, alpha-elements (O, Mg, Si, Ca Ti)
Shetrone, M. D., G. Battaglia, de Boer, T., de Boer, T. J. L., M. D. Shetrone, F. Primas, Battaglia, G., Francois, P., Jablonka, P., Primas, F., E. Starkenburg, Jablonka, Pascale, Venn, Kim A., Letarte, B., P. Jablonka, A. Helmi, de Boer, Thomas J. L., Venn, K. A., Kaufer, A., A. Kaufer, Starkenburg, Else, Á. Skúladóttir, Spite, M., Kaufer, Andreas, B. Letarte, Venn, K., V. Hill, Letarte, Bruno, Spite, Monique, Tolstoy, Eline, Tolstoy, E., T. J. L. de Boer, Helmi, A., Shetrone, M., P. François, Battaglia, Giuseppina, M. Spite, Helmi, Amina, Hill, V, K. A. Venn, Skúladóttir, Ása, Skuladottir, A., Starkenburg, E., Hill, Vanessa, Hill, V., Shetrone, Matthew D., Primas, Francesca, François, Patrick, E. Tolstoy   +48 more
core   +2 more sources

Element Abundances In Nearby Galaxies [PDF]

, 2004
In these lectures I present a highly opinionated review of the observed patterns of metallicity and element abundance ratios in nearby spiral, irregular, and dwarf elliptical galaxies, with connection to a number of astrophysical issues associated with chemical evolution.
openaire   +2 more sources

Chemical abundances in Seyfert galaxies – X. Sulphur abundance estimates

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT For the first time, the sulphur abundance relative to hydrogen (S/H) in the narrow-line regions of a sample of Seyfert 2 nuclei (Sy 2s) has been derived via direct estimation of the electron temperature. Narrow emission-line intensities from the Sloan Digital Sky Survey (SDSS) Data Release 17 (DR17) [in the wavelength range 3000
Oli L Dors, M Valerdi, R A Riffel, R Riffel, M V Cardaci, G F Hägele, Mark Armah, M Revalski, S R Flury, P Freitas-Lemes, E B Amôres, A C Krabbe, L Binette, A Feltre, T Storchi-Bergmann   +14 more
openaire   +3 more sources

Galaxy workflow from Galaxy 101 for everyone

, 2021
Galaxy workflow from Galaxy 101 for everyone. This workflow is used in the training "How to reproduce published Galaxy analyses" to learn how to run a published Galaxy ...
Melanie Föll, Anne Fouilloux
core   +1 more source

CUMULATIVE OXYGEN ABUNDANCES OF SPIRAL GALAXIES [PDF]

The Astrophysical Journal, 2012
14 pages, 7 figures, 5 ...
Dack, Stuart, McCall, Marshall L.
openaire   +2 more sources

Chemical behavior of the dwarf irregular galaxy NGC6822. Its PN and HII region abundances

, 2009
Aims. We aim to derive the chemical behavior of a significant sample of PNe and HII regions in the irregular galaxy NGC 6822. The selected objects are distributed in different zones of the galaxy.
M. Peña, L. Hernández-Martínez, J. García-Rojas, L. Carigi   +3 more
core   +1 more source

OXYGEN ABUNDANCE MEASUREMENTS OF SHIELD GALAXIES [PDF]

The Astrophysical Journal, 2015
Astrophysical Journal, in ...
Haurberg, Nathalie C., Salzer, John J., Cannon, John M., Marshall, Melissa V.   +3 more
openaire   +2 more sources

Mapping metallicity variations across nearby galaxy disks

, 2019
The distribution of metals within a galaxy traces the baryon cycle and the buildup of galactic disks, but the detailed gas phase metallicity distribution remains poorly sampled.
McElroy, R., Blanc, G.~A., Leroy, A.~K., Kruijssen, J. M. D., Chevance, M., Schruba, A., Glover, S.~C.~O., Ho, I.-T, Meidt, S., Faesi, C., Pety, J., Sanchez-Blazquez, P., Grasha, K., Congiu, E., Saito, T., van der Wel, Sharon Meidt, Kruijssen, J., Meidt, S. E., Kruijssen, J.~M.~D., Groves, B., Schinnerer, E., Santoro, F., Leroy, A. K., Blanc, G. A., Rosolowsky, E., Kreckel, K., Sandstrom, K., Lang, P., Bigiel, F., Glover, S. C. O., Ho, I., Leroy, A., Emsellem, E., Meidt, Sharon, Blanc, G., Glover, S., Ho, I. -T.   +36 more
core   +1 more source