537 citations · 3k across the 121 of their papers we have counts for
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Fundamental physics with ESPRESSO: Precise limit on variations in the fine-structure constant towards the bright quasar HE 05154414
Michael T. Murphy, Paolo Molaro, Ana C. O. Leite +40
The strong intervening absorption system at redshift 1.15 towards the very bright quasar HE 05154414 is the most studied absorber for measuring possible cosmological variations…
Many-probes multi-object spatially-resolved analyses of galaxy clusters in the big data era
Fabio Castagna, Stefano Andreon, Alberto Trombetta +1
The thermal Sunyaev-Zeldovich (SZ) effect and the X-ray emission offer separate and highly complementary probes of the thermodynamics of the intracluster medium, particularly on th…
What is the redshift of the gamma- ray BL Lac source S4 0954+65?
M. Landoni, R. Falomo, A. Treves +2
High signal-to-noise ratio spectroscopic observations of the BL Lac object S4 0954+65 at the alleged redshift z = 0.367 are presented. This source was detected at gamma frequencies…
Spectroscopy of Optically Selected BL Lac Objects and their gamma-ray emission
A. Sandrinelli, A. Treves, R. Falomo +4
We present Very Large Telescope optical spectroscopy of nine BL Lac objects of unknown redshift belonging to the list of optically selected radio loud BL Lacs candidates. We explor…
ESO VLT Optical Spectroscopy of BL Lac Objects IV. New spectra and properties of the full sample
Marco Landoni, Renato Falomo, Aldo Treves +4
We present the last chapter of a spectroscopy program aimed at deriving the redshift or a lower limit to the redshift of BL Lac objects using medium resolution spectroscopy. Here w…
On the redshift of the bright BL Lac object PKS 0048-097
Marco Landoni, Renato Falomo, Aldo Treves +4
Aims: The determination of elusive redshifts of bright BL Lac objects Methods: We use the capabilities of newly available spectrograph X-Shooter at European Southern Observatory (E…