Publications (6)
Powerful Radio Sources in the Southern Sky. I. Optical Identifications
F. Massaro, S. V. White, A. Garcia-Perez +18
Since the early sixties, our view of radio galaxies and quasars has been drastically shaped by discoveries made thanks to observations of radio sources listed in the Third Cambridg…
Testing connections between exo-atmospheres and their host stars. GEMINI-N/GMOS ground-based transmission spectrum of Qatar-1b
C. von Essen, S. Cellone, M. Mallonn +3
Till date, only a handful exo-atmospheres have been well characterized, mostly by means of the transit method. Data show exoplanet atmospheres to be diverse. However, this is based…
Modelling systematics of ground-based transit photometry I. Implications on transit timing variations
C. von Essen, S. Cellone, M. Mallonn +2
The transit timing variation technique (TTV) has been widely used to detect and characterize multiple planetary systems. Due to the observational biases imposed mainly by the photo…
Indications for transit timing variations in the exo-Neptune HAT-P-26b
C. von Essen, S. Wedemeyer, M. S. Sosa +8
From its discovery, the low density transiting Neptune HAT-P-26b showed a 2.1-sigma detection drift in its spectroscopic data, while photometric data showed a weak curvature in the…
Powerful Radio Sources in the Southern Sky. II. A SWIFT X-Ray Perspective
F. Massaro, S. V. White, A. Paggi +18
We recently constructed the G4Jy-3CRE, a catalog of extragalactic radio sources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing the number of powerful radio galax…
PKS 2155-304: Long-Term Optical Photometric Monitoring and Variability Analysis
J. L. Weiss, I. Andruchow, E. J. Marchesini +6
Through the detailed study of the optical flux behaviour in blazars over time, it is possible to infer the conditions responsible for their observed emission. PKS 2155-304, a BL La…