Publications (29)
Search for alpha variation in UVES spectra: Analysis of C IV and Si IV doublets towards QSO 1101-264
A. F. Martinez Fiorenzano, G. Vladilo, P. Bonifacio
Motivated by previous studies of QSO spectra that reported a variation of the fine structure constant alpha, a search for C IV and Si IV doublets was conducted in the absorption sp…
An astrophysical oscillator strength for the SII 94.7 nm resonance line and S abundances in DLAs
P. Bonifacio, E. Caffau, M. Centurion +2
By using UV spectra for the O star HD 93521 taken with the ORFEUS II echelle spectrograph, we determine an ``astrophysical'' f value for the SII 94.7 nm line: f = 0.00498 (+0.00172…
The UVES Large Program for Testing Fundamental Physics II: Constraints on a Change in μ Towards Quasar HE 0027-1836
H. Rahmani, M. Wendt, R. Srianand +14
We present an accurate analysis of the H2 absorption lines from the zabs ~ 2.4018 damped Lyα system towards HE 0027-1836 observed with the Very Large Telescope Ultraviolet and Vis…
Optical-NIR spectra of quasars close to reionization (z~ 6)
V. D'Odorico, G. Cupani, S. Cristiani +14
X-shooter, with its characteristics of resolution, spectral coverage and efficiency, provides a unique opportunity to obtain spectra of the highest-redshift quasars (z ~ 6) that wi…
Fundamental constants and high resolution spectroscopy
P. Bonifacio, H. Rahmani, J. B. Whitmore +14
Absorption-line systems detected in high resolution quasar spectra can be used to compare the value of dimensionless fundamental constants such as the fine-structure constant, alph…
Climate and atmospheric models of rocky planets: habitability and observational properties
L. Silva, R. Bevilacqua, L. Biasiotti +7
The quest for atmospheric spectral signatures that may witness biological activity in exoplanets is focused on rocky planets. The best targets for future, challenging spectroscopic…