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SDSS-IV MaNGA: spatially resolved star formation histories in galaxies as a function of galaxy mass and type
(OXFORD UNIV PRESS, 2017)
We study the internal gradients of stellar population propertieswithin 1.5 R-e for a representative sample of 721 galaxies, with stellar masses ranging between 10(9)M circle dot and 10(11.5)M circle dot from the SDSS-IV ...
A FIRST CONSTRAINT ON THE THICK DISK SCALE LENGTH: DIFFERENTIAL RADIAL ABUNDANCES IN K GIANTS AT GALACTOCENTRIC RADII 4, 8, AND 12 kpc
(IOP PUBLISHING LTD, 2011)
Based on high-resolution spectra obtained with the MIKE spectrograph on the Magellan telescopes, we present detailed elemental abundances for 20 red giant stars in the outer Galactic disk, located at Galactocentric distances ...
The imprint of reionization on the star formation histories of dwarf galaxies
(Wiley Blackwell Publishing, Inc, 2015-04)
We use a compilation of star formation histories (SFHs) and cosmological simulations to explore the impact of cosmic reionization on nearby isolated dwarf galaxies. Nearby dwarfs show a wide diversity of SFHs; from ancient ...
Target Selection for the SDSS-IV APOGEE-2 Survey
(IOP Publishing Ltd., 2017)
APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing similar to 3. x. 10(5) stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digital Sky Survey IV (SDSS-IV). APOGEE-2 ...
Extra-tidal star candidates in globular clusters of the sagittarius dwarf spheroidal galaxy
(EDP Sciences, 2022-09)
Context. Globular clusters (GCs) associated with the Sagittarius dwarf spheroidal galaxy (Sgr dSph) have evolved under the gravita tional potential of both Sgr dSph and the Milky Way. The effects of these potentials are ...
Searching for star formation outside galaxies: Multiwavelength analysis of the intragroup medium of Hickson Compact Group 100
(IOP PUBLISHING LTD, 2008)
We use multiwavelength data (H I, FUV, NUV, R) to search for evidence of star formation in the intragroup medium of the Hickson Compact Group 100. We find that young star-forming regions are located in the intergalactic H ...
Effects of the selection function on metallicity trends in spectroscopic surveys of the Milky Way
(EDP SCIENCES S A, 2017)
Context. Large spectroscopic Galactic surveys imply a selection function in the way they performed their target selection.
Angular momentum evolution for galaxies in a Lambda-CDM scenario
(2015)
Context. Galaxy formation in the current cosmological paradigm is a very complex process in which inflows, outflows, interactions, and mergers are common events. These processes can redistribute the angular momentum content ...
The Nuclear Near-Infrared Spectral Properties of Nearby Galaxies
(2015-03)
We present spectra of the nuclear regions of 50 nearby (D = 1–92 Mpc, median = 20 Mpc) galaxies of
morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North
telescope, ...
Do galaxy global relationships emerge from local ones? The SDSS IV MaNGA surface mass density-metallicity relation
(OXFORD UNIV PRESS, 2016)
We present the stellar surface mass density versus gas metallicity (Sigma(*)-Z) relation for more than 500 000 spatially resolved star-forming resolution elements (spaxels) from a sample of 653 disc galaxies included in ...