Resuelto el misterio de la galaxia sin materia oscura
Un grupo de investigadores del Instituto de Astrofísica de Canarias (IAC) ha aclarado uno de los misterios del año 2018 en el mundo de la astrofísica...
Resuelven el enigma de la extraña galaxia compuesta en un 99,99% de materia oscura
La formación de galaxias no se puede entender hoy sin la presencia de un componente omnipresente, pero aún misterioso, llamado materia oscura. Los astrónomos...
Results of the digital co-addition of thirteen Schmidt films of the Virgo cluster of galaxies
We have digitally co-added APM scans of 13 Kodak TechPan films of the SE region of the Virgo cluster of galaxies. The ~ 6.2degr x 6.2degr field of the R-band...
Revealing the kinematic puzzle of the AGN host NGC 3884: optical integral field spectroscopy unravels stellar and gas motions
We used optical integral field spectroscopy to analyse the stellar and gas properties of the inner 1.4 kpc radius of NGC 3884, a low-luminosity active galactic...
Revealing the origin of the cold ISM in massive early-type galaxies
Recently, massive early-type galaxies have shed their red-and-dead moniker, thanks to the discovery that many host residual star formation. As part of the ATLAS...
Revealing the tidal scars of the Small Magellanic Cloud
Due to their close proximity, the Large and Small Magellanic Clouds (LMC/SMC) provide natural laboratories for understanding how galaxies form and evolve. With...
Reviewing the frequency and central depletion of ultra-diffuse galaxies in galaxy clusters from the KIWICS survey
The number of ultra-diffuse galaxies (UDGs) in clusters is of significant importance to constrain models of their formation and evolution. Furthermore, their...
Revised Primordial Helium Abundance Based on New Atomic Data
We have derived a primordial helium abundance of Yp=0.2477+/-0.0029, based on new atomic physics computations of the recombination coefficients of He I and of...
Revisiting the classics: is [Mg/Fe] a good proxy for galaxy formation time-scales?
In the local Universe, massive early-type galaxies exhibit enhanced [Mg/Fe] ratios, which has been traditionally interpreted as the result of a rapid (τ ≲ 1 Gyr...