Buscar
Mostrando ítems 161-170 de 675
The evolution of the metallicity gradient and the star formation efficiency in disc galaxies
(2017)
We study the oxygen abundance profiles of the gas-phase components in hydrodynamical simulations of pre-prepared disc galaxies including major mergers, close encounters and isolated configurations. We analyse the evolution ...
Cusps in the center of galaxies: a real conflict with observations or a numerical artefact of cosmological simulations?
(IOP Publishing, 2017-05)
Galaxy observations and N-body cosmological simulations produce conflicting dark matter halo density pro files for galaxy central regions. While simulations suggest a cuspy and universal density pro file (UDP) of this ...
A Novel Approach to Study the Variability of NGC 5548
(American Astronomical Society, 2020)
The global environment of small galaxy systems
(Wiley Blackwell Publishing, Inc, 2020)
Southern ultraluminous infrared galaxies: An optical and infrared database
(1997)
We have carried out an optical and infrared
study of 24 ultraluminous infrared galaxies in the southern
hemisphere (SULIRGs). This flux limited, complete
sample, has been extracted from the redshift survey of
IRAS ...
The complex, dusty narrow-line region of NGC 4388: Gas-jet interactions, outflows and extinction revealed by near-IR spectroscopy
(Oxford University, 2017)
We present Gemini/GNIRS (Gemini Near-Infrared Spectrograph) spectroscopy of the Seyfert2 galaxy NGC 4388, with simultaneous coverage from 0.85 to 2.5μm. Several spatiallyextended emission lines are detected for the first ...
Abundance determination of multiple star-forming regions in the HII galaxy SDSS J165712.75+321141.4
(Wiley Blackwell Publishing, Inc, 2011-01)
We analyse high signal-to-noise ratio spectrophotometric observations acquired simultaneously with TWIN, a double-arm spectrograph, from 3400 to 10 400Å of three star-forming regions in the HII galaxy SDSS J165712.75+321141.4. ...
Global environmental effects versus galaxy interactions
(2009)
We explore properties of close galaxy pairs and merging systems selected from the SDSS-DR4 in different environments with the aim to assess the relative importance of the role of interactions over global environmental ...