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http://hdl.handle.net/20.500.12386/31727
Titolo: | The Instrument of the Imaging X-Ray Polarimetry Explorer | Autori: | SOFFITTA, PAOLO Baldini, Luca Bellazzini, Ronaldo COSTA, ENRICO Latronico, Luca MULERI, FABIO DEL MONTE, Ettore FABIANI, Sergio Minuti, Massimo Pinchera, Michele Sgro', Carmelo Spandre, Gloria TROIS, ALESSIO AMICI, FABRIZIO Andersson, Hans ATTINA', PRIMO BACHETTI, Matteo Barbanera, Mattia Borotto, Fabio Brez, Alessandro BRIENZA , DANIELE Caporale, Ciro Cardelli, Claudia Carpentiero, Rita Castellano, Simone Castronuovo, Marco Cavalli, Luca Cavazzuti, Elisabetta Ceccanti, Marco CENTRONE, Mauro Ciprini, Stefano Citraro, Saverio D'AMICO, Fabio D'Alba, Elisa DI COSIMO, SERGIO Di Lalla, Niccolo' DI MARCO, ALESSANDRO DI PERSIO, GIUSEPPE Donnarumma, Immacolata EVANGELISTA, YURI FERRAZZOLI, RICCARDO Hayato, Asami Kitaguchi, Takao LA MONACA, FABIO LEFEVRE, CARLO LOFFREDO, PASQUALINO Lorenzi, Paolo Lucchesi, Leonardo Magazzu, Carlo Maldera, Simone Manfreda, Alberto Mangraviti, Elio Marengo, Marco Matt, Giorgio Mereu, Paolo MORBIDINI, Alfredo Mosti, Federico Nakano, Toshio Nasimi, Hikmat Negri, Barbara Nenonen, Seppo NUTI, Alessio Orsini, Leonardo PERRI, Matteo Pesce-Rollins, Melissa PIAZZOLLA, RAFFAELE PILIA, Maura Profeti, Alessandro Puccetti, Simonetta RANKIN, JOHN RATHEESH, AJAY RUBINI, ALDA SANTOLI, FRANCESCO Sarra, Paolo SCALISE, Emanuele Sciortino, Andrea Tamagawa, Toru Tardiola, Marcello TOBIA, ANTONINO Vimercati, Marco XIE, FEI |
Data pubblicazione: | 2021 | Rivista: | THE ASTRONOMICAL JOURNAL | Numero: | 162 | Fascicolo: | 5 | Da pagina:: | 208 | Abstract: | While X-ray spectroscopy, timing, and imaging have improved much since 1962 when the first astronomical nonsolar source was discovered, especially wi the launch of the Newton/X-ray Multi-Mirror Mission, Rossi/X-ray Timing Explorer, and Chandra/Advanced X-ray Astrophysics Facility, the progress of X-ray polarimetry has been meager. This is in part due to the lack of sensitive polarization detectors, which in turn is a result of the fate of approved missions and because celestial X-ray sources appear less polarized than expected. Only one positive measurement has been available until now: the Orbiting Solar Observatory measured the polarization of the Crab Nebula in the 1970s. The advent of microelectronics techniques has allowed for designing a detector based on the photoelectric effect of gas in an energy range where the optics are efficient at focusing in X-rays. Here we describe the instrument, which is the major contribution of the Italian collaboration to the Small Explorer mission called IXPE, the Imaging X-ray Polarimetry Explorer, which will launch in late 2021. The instrument is composed of three detector units based on this technique and a detector service unit. Three mirror modules provided by Marshall Space Flight Center focus X-rays onto the detectors. We show the technological choices, their scientific motivation, and results from the calibration of the instrument. IXPE will perform imaging, timing, and energy-resolved polarimetry in the 2-8 keV energy band opening this window of X-ray astronomy to tens of celestial sources of almost all classes. | URI: | http://hdl.handle.net/20.500.12386/31727 | URL: | https://iopscience.iop.org/article/10.3847/1538-3881/ac19b0 https://api.elsevier.com/content/abstract/scopus_id/85117387131 |
ISSN: | 0004-6256 | DOI: | 10.3847/1538-3881/ac19b0 | Bibcode ADS: | 2021AJ....162..208S | Fulltext: | open |
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