Results 21 to 30 of about 5,582,882 (269)

Galaxy And Mass Assembly (GAMA) : galaxy close pairs, mergers and the future fate of stellar mass [PDF]

open access: yes, 2014
ASGR acknowledges STFC and SUPA funding that were used to do this work. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO and the participating institutions.We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift
De Propris, R.   +130 more
core   +1 more source

The Stellar Content of the Nuclei of Spiral Galaxies [PDF]

open access: yesHighlights of Astronomy, 1980
Widened, image-tube spectra at a dispersion of 120 Å mm-1 were obtained of the nuclei of 36 spiral (Shapley-Ames) galaxies. Spectral features in the region λλ 3800 - 4300 Å were used to assign a spectral index to each galaxy and to estimate the luminosity classes of the stars contributing the majority of the light at these wavelengths. Bulge magnitudes
openaire   +1 more source

Structure and stellar content of dwarf galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2001
CCD photometry in the Cousins B , V and R bands of 19 northern field dwarf galaxies is presented. For each galaxy, and for each colour, we determined total magnitude, effective radius and effective surface brightness, and, by fitting an exponential to the surface brightness profile, central surface brightness and exponential scale length.
F. D. Barazza, B. Binggeli, P. Prugniel
openaire   +1 more source

Stellar population gradients in galaxy discs from the CALIFA survey : the influence of bars [PDF]

open access: yes, 2014
We acknowledge financial support from the research projects under grants AYA2010-21887-C04-03, AYA2010-21322-C03-03 and AYA2010-15081 by the Spanish Ministerio de Ciencia e Innovación.While studies of gas-phase metallicity gradients in disc galaxies are ...
Wisotzki, L.   +73 more
core   +1 more source

Early assembly of the most massive galaxies [PDF]

open access: yes, 2009
The current consensus is that galaxies begin as small density fluctuations in the early Universe and grow by in situ star formation and hierarchical merging(1).
Chris A. Collins   +53 more
core   +1 more source

Ionized Gas and Stellar Content in a Sample of HII Galaxies [PDF]

open access: yesInternational Astronomical Union Colloquium, 1989
AbstractWe present the first results of an extensive study of the stellar content and the ionized gas structure for a sample of BCGs. Deep broad (BVRI Johnson) and narrow (Hα) CCD images have been obtained for about 25 galaxies. For a subset of objects, selected on the basis of their apparent structure, long-slit spectroscopy has also been obtained in ...
J. M. Vilchez, J. Cepa, C. Esteban
openaire   +1 more source

From theoretical stellar spectra to realistic models of the Milky Way : a never ending Odyssey [PDF]

open access: yes, 2007
The last chapter is dedicated to the compilation of the results and the discussion about the success of - but also about the problems that have arisen during - and in part also survived - this work. The main goal of this thesis was, firstly, to convert
Ammon, Karin
core   +1 more source

The mass content of the Sculptor dwarf spheroidal galaxy [PDF]

open access: yes, 2009
We present a new determination of the mass content of the Sculptor dwarf spheroidal galaxy, based on a novel approach which takes into account the two distinct stellar populations present in this galaxy.
Battaglia, G.   +3 more
core   +1 more source

The Stellar Content of the Local Group Dwarf Galaxy Phoenix

open access: yesThe Astronomical Journal, 1999
We present new deep $VI$ ground-based photometry of the Local Group dwarf galaxy Phoenix. Our results confirm that this galaxy is mainly dominated by red stars, with some blue plume stars indicating recent (100 Myr old) star formation in the central part of the galaxy.
Martinez-Delgado, D   +2 more
openaire   +6 more sources

The SAMI Galaxy Survey: revisiting galaxy classification through high-order stellar kinematics [PDF]

open access: yes, 2017
Recent cosmological hydrodynamical simulations suggest that integral field spectroscopy can connect the high-order stellar kinematic moments h3 (~skewness) and h4 (~kurtosis) in galaxies to their cosmological assembly history.
McElroy, Rebecca   +43 more
core   +2 more sources

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