Poster abstract details

A blazar science case for the Large Synoptic Survey Telescope (LSST)
M.I. Carnerero, C.M. Raiteri, B. Balmaverde, F. D'Ammando, C. Righi


In the next future (2022-2032) the Large Synoptic Survey Telescope (LSST; a 8.4 meter telescope located in Chile) will carry out a survey of the southern hemisphere sky (at least 18,000 square degrees). Each ~9 square degree observing field will be revisited every few days with a different filter (ugrizy).. This is known as the Wide-Fast-Deep survey (WFD, or "Main Survey"). Moreover, a fraction of time between 10 and 20% will be devoted to special surveys on selected sky areas: MiniSurveys and Deep Drilling Fields (DDFs), for which there is an upcoming call for proposal to select sky areas and define cadences.

The Italian Istituto Nazionale di Astrofisica (INAF) financially supports a Blazar group affiliated to the LSST Science Collaboration “Transients and Variable Stars” (TVS). The group is actively working to give inputs on the blazar science case. The collaboration with the LSST-TVS at this time is mainly based on:

- the definition of a best observational strategy for blazars, with particular interest in proposing an additional DDF covering a region of the sky containing a variety of blazars with different characteristics (bright/faint BL Lacs and FSRQs);

- the simulation of the LSST MAIN SURVEY and DDF cadences to investigate their effect on blazar studies;

- the test of different methods of AGN selection on blazars to identify strategies to discover new blazars.

We present preliminary results of the above analyses.