Associazione Romana Astrofili

157 FRASSO SABINO 42,22945555N 12,81150555E 465m s.l.m.

Cosa è il Tempo? Conferenza sull'evoluzione del concetto di tempo dalla preistoria alla fisica moderna

Microvariability Case: Seyfert 2 Galaxies

The AGN unified scenario suggests that the Seyfert 2 galaxies are the obscured counterparts of Seyfert 1 galaxies where the difference is caused only by the orientation of the object. Optical microvariability is supposed to arise from the regions which are closer to the supermassive black hole at the center of the AGN. The search for microvariability is an important test for the AGN unified scenario, since we assume that the variability of obscured AGNs should be happening on long time scales (compared to the unobscured AGNs). We present first results from the microvariability...

Small-Molecule Inhibitor Leads of Ribosome-Inactivating Proteins Developed Using the Doorstop Approach

Minor Planet Observations [157 Frasso Sabino]

Optical and near infrared multi-site follow up of the recurrent nova T Pyx

We report on the spectroscopic observations of the 2011 outburst of the Recurrent Nova T Pyx. The observations were obtained over the first two months of the outburst and they were made using two different high resolution echelle spectrographs: VLT-XSHOOTER and TNG-SARG. The first observation was obtained one day after the discovery of the outburst, so that we were able to follow the evolution of the nova from the very early emission before the maximum luminosity of the nova. Such early observation allowed us to detect the transition of the nova spectral emission from a He-N to a Fe...