{"id":4541,"date":"2024-05-28T16:11:39","date_gmt":"2024-05-28T14:11:39","guid":{"rendered":"http:\/\/brera.inaf.it\/?post_type=progetti_ricerca&p=4541"},"modified":"2024-11-22T13:25:35","modified_gmt":"2024-11-22T12:25:35","slug":"grawita","status":"publish","type":"progetti_ricerca","link":"https:\/\/brera.inaf.it\/en\/progetti_ricerca\/grawita\/","title":{"rendered":"GRAWITA"},"content":{"rendered":"\n
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GRAWITA<\/h5>\n\n\n\n

GRA<\/strong>vitational W<\/strong>ave I<\/strong>naf T<\/strong>eA<\/strong>m<\/p>\n\n\n\n

SHORT DESCRIPTION<\/strong><\/h5>\n\n\n\n

The INAF GRAWITA<\/strong><\/a> collaboration aims to conduct observational campaigns of “follow-up” (i.e. monitoring) in the radio<\/em>, optical<\/em>, near-infrared<\/em>, X-ray<\/em> and gamma-ray<\/em> bands of the events reported by the gravitational wave (GW) <\/strong>detector network currently composed of the two Advanced – LIGO<\/a> (USA) and Virgo<\/a> (Italy) – and Kagra<\/a> (Japan).<\/p>\n\n\n\n

Monitoring<\/strong> is essential to identify<\/strong> the position of the celestial object responsible for the emission of gravitational waves and to study its evolution over time.<\/p>\n\n\n\n


La strumentazione<\/strong> di terra utilizzata dalla collaborazione GRAWITA include il VLT Survey Telescope<\/em><\/a>, il Large Binocular Telescope<\/em><\/a>, il Telescopio Nazionale Galileo<\/em><\/a>, il Rapid Eye Mount Telescope<\/em><\/a>, i telescopi di Asiago<\/em><\/a> e Campo Imperatore<\/em><\/a>, ed il Sardinia Radio Telescope<\/em><\/a>. Si \u00e8 anche pianificato l\u2019utilizzo di strumenti di alta energia dallo spazio (principalmente il Neil Gehrels Swift Observatory<\/em><\/a>).<\/p>\n\n\n\n

The ground-based instruments<\/strong> used by the GRAWITA collaboration include the VLT Survey Telescope<\/em><\/a>, the Large Binocular Telescope<\/em><\/a>, the Telescopio Nazionale Galileo<\/em><\/a>, the Rapid Eye Mount Telescope<\/em><\/a>, the \u00a0Asiago<\/em><\/a> and Campo Imperatore<\/em><\/a>, and the Sardinia Radio Telescope<\/em><\/a>. There are also plans to use high-energy instruments from space (mainly the Neil Gehrels Swift Observatory<\/em><\/a>).<\/p>\n\n\n\n

ROLE OF THE OBSERVATORY<\/h5>\n\n\n\n

Il nostro gruppo \u00e8 stato pienamente attivo in occasione del pi\u00f9 eccitante evento GW identificato fino ad ora per cui \u00e8 stata rilevata anche la radiazione elettromagnetica associata all\u2019esplosione avvenuta durante il fenomeno che ha generato l\u2019onda gravitazionale: GW170817<\/strong><\/a> (17 agosto 2017) causato dalla fusione di due stelle di neutroni e associato ad un breve e poco intenso lampo gamma (GRB), denominato GRB 170817A. Siamo stati in grado di assicurare una copertura continua<\/strong> con vari strumenti da Terra tra circa 12 ore a grossomodo 15,5 giorni dopo l\u2019insorgere dell\u2019evento GW\/GRB.
Abbiamo pubblicato una serie di articoli focalizzati sulle propriet\u00e0 della controparte elettromagnetica, riportando ed interpretando i risultati di questa straordinaria campagna osservativa. Siamo stati anche coinvolti nella maggior parte delle attivit\u00e0 di “follow-up” per gli altri eventi GW rivelati negli ultimi cinque anni. E il lavoro continua!<\/p>\n\n\n\n

Our group was fully active during the most exciting GW event identified so far for which also the electromagnetic radiation associated with the explosion that occurred during the phenomenon that generated the gravitational wave was detected: GW170817<\/strong><\/a> (August 17, 2017) caused by the merger of two neutron stars and associated with a short and weak gamma-ray burst (GRB), named GRB 170817A. We were able to ensure continuous coverage<\/strong> with various ground-based instruments from about 12 hours to roughly 15.5 days after the onset of the GW\/GRB event.
We published a series of papers focused on the properties of the electromagnetic counterpart, reporting and interpreting the results of this extraordinary observing campaign. We have also been involved in most of the “follow-up” activities for the other GW events detected in the last five years. And the work continues!<\/p>\n\n\n\n

OBSERVATORY STAFF INVOLVED<\/h5>\n\n\n\n