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http://hdl.handle.net/20.500.12386/32411
Titolo: | LIGO/Virgo S200224ca: GRAWITA-Campo Imperatore observations | Autori: | DE LUISE, Fiore Tedesco, P. Napoleone, N. ROSSI, Andrea Dolci, M. Valentini, G. CANTIELLO, Michele Di Cianno, A. Valentini, A. PACINELLI, Lucio Primo Fiaschi, M. Greco, G. Cappellaro, E. D'Avanzo, P. GRADO, ANIELLO BROCATO, Enzo Grawita |
Data pubblicazione: | 2020 | Rivista: | GRB Coordinates Network | Numero: | 27211 | Da pagina:: | 1 | Abstract: | We carried out observations of the LIGO/Virgo trigger GW S200224ca (GCN Circ. #27184) using the INAF-OAAb 0.9m Schmidt Telescope of the INAF - Astronomical Observatory of Abruzzo located at 2150 meters o.s.l. at Campo Imperatore (Italy) and equipped with a 4096x4096 CCD covering a field of view of 1.15×1.15 square degrees. Due to weather conditions, only three pointings were made covering an area of nearly 4 square degrees; a containment probability of ~ 8 % of the 50% credible region was captured. The pointing sequence was generated using the GWsky script (G. Greco, https://github.com/ggreco77/GWsky), starting from the high probability region of the bayestar skymap and taking into account the airmass and relative density of nearby galaxies at the distance of 1585 +/- 331 Mpc. The total exposure time for each image was 3x180 sec. The observations were taken with the r-Sloan band on 2020-02-24 starting at 23:47:37.0 UT, about one hour after the GW detection (i.e. 2020-02-24 22:22:34.406 UTC). The estimated limiting magnitude in r-Sloan is about 21.5 mag. Hereafter the log of the observations. | RA (J2000) | Dec (J2000) | UT time | filter | exposure time| | 11:43:50.29 | -07:49:10 | 2020-02-24T23:47:37.0 | r-sloan | 3x180 sec | | 11:35:44.35 | -07:49:10 | 2020-02-25T00:04:09.6 | r-sloan | 3x180 sec | | 11:39:47.98 | -07:49:35 | 2020-02-25T00:20:44.8 | r-sloan | 3x180 sec | The analysis of images is ongoing. -------------------------------------------- De Luise Fiore, PhD INAF - Osservatorio Astronomico d'Abruzzo Via Mentore Maggini, s.n.c. 64100 - TERAMO Tel +39-0861-439712 Fax +39-0861-439740 -------------------------------------------- | URI: | http://hdl.handle.net/20.500.12386/32411 | URL: | https://gcn.gsfc.nasa.gov/gcn/gcn3/27211.gcn3 | Bibcode ADS: | 2020GCN.27211....1D | Fulltext: | open |
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