8.6k citations · 13.3k across the 57 of their papers we have counts for
4 papers · 1 filter
GraL spectroscopic identification of multiply imaged quasars
Priyanka Jalan, Vibhore Negi, Jean Surdej +24
Gravitational lensing is proven to be one of the most efficient tools for studying the Universe. The spectral confirmation of such sources requires extensive calibration. This pape…
Gaia GraL: Gaia DR2 Gravitational Lens Systems. IV. Keck/LRIS spectroscopic confirmation of GRAL113100-441959 and model prediction of time-delays
Olivier Wertz, Daniel Stern, Alberto Krone-Martins +14
We report the spectroscopic confirmation and modeling of the quadruply imaged quasar GRAL113100-441959, the first gravitational lens (GL) to be discovered mainly from astrometric c…
Gaia GraL: Gaia DR2 Gravitational Lens Systems. III. A systematic blind search for new lensed systems
L. Delchambre, A. Krone-Martins, O. Wertz +13
Aims: In this work, we aim to provide a reliable list of gravitational lens (GL) candidates based on a search performed over the entire Gaia Data Release 2 (Gaia DR2). We also show…
Searching for the first stars with the Gaia mission
Rafael S. de Souza, Alberto Krone-Martins, Emille E. O. Ishida +1
We construct a theoretical model to predict the number of orphan afterglows (OA) from gamma-ray bursts (GRBs) triggered by primordial metal-free (Pop III) stars expected to be obse…