4 papers
Moonlit sky polarization patterns from Cerro Paranal
B. Pereira, S. Gonzalez-Gaitan, A. M. Mourao +5
We investigate the polarization patterns from the moonlit sky as observed from the European Southern Observatory at Cerro Paranal. The moonlit sky background can be significant in…
Narrow absorption lines from intervening material in supernovae. II. Galaxy properties
Santiago González-Gaitán, Claudia P. Gutiérrez, Gonçalo Martins +11
The interstellar medium (ISM) has a number of tracers such as the Na I D 5890, 5896 AA absorption lines that are evident in the spectra of galaxies but also in those of individual…
Assessing differences between local galaxy dust attenuation and point source extinction within the same environments
J. Duarte, S. González-Gaitán, A. Mourão +5
Dust attenuation in galaxies has often been used as a proxy for the extinction of point sources, such as supernovae, even though this approach ignores fundamental differences betwe…
from multi-waveband galaxy polarimetry in supernovae vicinity
João Rino-Silvestre, Santiago González-Gaitán, Ana Mourão +2
Peculiar dust extinction laws have been reported for some type Ia supernovae (SNe) with the parameter much lower than the average value for the Milky Way (MW) of 3.1. Using o…