Results 21 to 30 of about 832 (258)
Spectroscopic characterization of the stellar content of ultra-diffuse galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Understanding the peculiar properties of Ultra Diffuse Galaxies (UDGs) via spectroscopic analysis is a challenging task requiring very deep observations and exquisite data reduction. In this work we perform one of the most complete characterisations of the stellar component of UDGs to date using deep optical spectroscopic data from OSIRIS at GTC.
T Ruiz-Lara +9 more
openaire +3 more sources
On the stellar content and structure of the spiral Galaxy M33
Astrophysical Journal, Supplement Series, 1980 R M Humphreys
exaly +2 more sources
Ionized Gas and Stellar Content in a Sample of HII Galaxies [PDF]
International 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
Properties of Stellar Streams in the Galactic Disk
Open Astronomy, 2016 Stars of the Sirius, Coma Berenices, Hyades, Pleiades, Wolf 630, Dehnen 6, Dehnen 14, HR 1614, η Cephei, γ Leo streams, the newly identified two subgroups of the Hercules stream, and the streams BB 14, BB 17, BB 20, and BB 21 are selected using the ...
Marsakov V. A. +2 more
doaj +1 more source
The Stellar Content of the Local Group Dwarf Galaxy Phoenix
The 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
From Carbon to Cobalt: Chemical Compositions and Ages of z ∼ 0.7 Quiescent Galaxies
The Astrophysical Journal, 2023 We present elemental abundance patterns (C, N, Mg, Si, Ca, Ti, V, Cr, Fe, Co, and Ni) for a population of 135 massive quiescent galaxies at z ∼ 0.7 with ultra-deep rest-frame optical spectroscopy drawn from the LEGA-C survey.
Aliza G. Beverage +7 more
doaj +1 more source
Revisiting the Milky Way stellar long bar and the 3 kpc arm★
Astronomy & AstrophysicsContext. One of the most difficult and unexplored regions of the Milky Way is the highly extincted in-plane central region within the Galactic coordinates 10◦ ≲ |ℓ| ≲ 30◦, |b| ≲ 3◦, where we have the long-bar and 3 kpc arm with intermediate-age stellar ...
López-Corredoira M. +3 more
doaj +1 more source
The stellar content of the nuclear regions of SC galaxies [PDF]
The Astrophysical Journal, 1976 The stellar content of the nuclear regions of seven nearby Sc galaxies has been determined by means of population syntheses utilizing narrow-band spectrophotometric observations covering the wavelength range 3300A-10400A. A linear-programming fitting technique is used in conjunction with simple models of star formation to provide physically consistent ...
openaire +2 more sources
On the stellar content of the Carina dwarf spheroidal galaxy
, 2010 Accepted on PASP, 12 pages, 6 ...
Bono, Guillaume +22 more
openaire +6 more sources
Structure and stellar content of dwarf galaxies [PDF]
Astronomy and Astrophysics Supplement Series, 2000 We have carried out CCD photometry in the Cousins B and R bands of 15 galaxies in the Canes Venatici I cloud. Total magnitudes, effective radii, effective surface brightnesses, as well as galaxy radii at various isophotal levels in both colors were determined.
Bremnes, T., Binggeli, B., Prugniel, P.
openaire +2 more sources