Ajay Ratheesh
University of Rome Tor Vergata
91 Papers
65 Citations
Ajay Ratheesh is an academic researcher from University of Rome Tor Vergata. The author has contributed to research in topics: Polarization (electrochemistry) & Polarimetry. The author has an hindex of 5, co-authored 15 publications. Previous affiliations of Ajay Ratheesh include Sapienza University of Rome & Tata Institute of Fundamental Research.
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Papers
The Instrument of the Imaging X-Ray Polarimetry Explorer
Paolo Soffitta,Luca Baldini,Ronaldo Bellazzini,Enrico Costa,Luca Latronico,Fabio Muleri,Ettore Del Monte,Sergio Fabiani,Massimo Minuti,Michele Pinchera,Carmelo Sgrò,Gloria Spandre,Alessio Trois,Fabrizio Amici,Hans Andersson,Primo Attinà,Matteo Bachetti,Mattia Barbanera,Fabio Borotto,Alessandro Brez,Daniele Brienza,Ciro Caporale,Claudia Cardelli,Rita Carpentiero,S. Castellano,Marco Castronuovo,Luca Cavalli,E. Cavazzuti,M. Ceccanti,Mauro Centrone,Stefano Ciprini,Saverio Citraro,Fabio D'Amico,Elisa D'Alba,Sergio Di Cosimo,Niccolò Di Lalla,Alessandro Di Marco,Giuseppe Di Persio,I. Donnarumma,Y. Evangelista,Riccardo Ferrazzoli,Asami Hayato,Takao Kitaguchi,Fabio La Monaca,Carlo Lefevre,Pasqualino Loffredo,Paolo Lorenzi,Leonardo Lucchesi,Carlo Magazzu,S. Maldera,Alberto Manfreda,Elio Mangraviti,Marco Marengo,Giorgio Matt,Paolo Mereu,Alfredo Morbidini,Federico Mosti,Toshio Nakano,Hikmat Nasimi,Barbara Negri,S. Nenonen,Alessio Nuti,Leonardo Orsini,M. Perri,Melissa Pesce-Rollins,Raffaele Piazzolla,Maura Pilia,Alessandro Profeti,Simonetta Puccetti,John Rankin,Ajay Ratheesh,Alda Rubini,Francesco Santoli,Paolo Sarra,E. Scalise,Andrea Sciortino,Toru Tamagawa,Marcello Tardiola,Antonino Tobia,Marco Vimercati,Fei Xie +80 more
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Design, construction, and test of the Gas Pixel Detectors for the IXPE mission
Luca Baldini,Luca Baldini,M. Barbanera,M. Barbanera,Ronaldo Bellazzini,R. Bonino,R. Bonino,Fabio Borotto,Alessandro Brez,Ciro Caporale,Claudia Cardelli,S. Castellano,M. Ceccanti,Saverio Citraro,N. Di Lalla,Luca Latronico,Leonardo Lucchesi,Carlo Magazzu,Guido Magazzu,S. Maldera,Alberto Manfreda,Marco Marengo,Alessandra Marrocchesi,Paolo Mereu,Massimo Minuti,Federico Mosti,Hikmat Nasimi,Hikmat Nasimi,Alessio Nuti,C. Oppedisano,Leonardo Orsini,Melissa Pesce-Rollins,Michele Pinchera,Alessandro Profeti,Carmelo Sgrò,Gloria Spandre,Marcello Tardiola,D. Zanetti,Fabrizio Amici,Hans Andersson,Primo Attina,Matteo Bachetti,Wayne H. Baumgartner,Daniele Brienza,Rita Carpentiero,Marco Castronuovo,Luca Cavalli,E. Cavazzuti,Mauro Centrone,Enrico Costa,Elisa D'Alba,Fabio D'Amico,E. Del Monte,S. Di Cosimo,A. Di Marco,G. Di Persio,I. Donnarumma,Y. Evangelista,Sergio Fabiani,R. Ferrazzoli,R. Ferrazzoli,Takao Kitaguchi,F. La Monaca,Carlo Lefevre,Pasqualino Loffredo,Paolo Lorenzi,Elio Mangraviti,Giorgio Matt,T. Meilahti,Alfredo Morbidini,F. Muleri,Toshio Nakano,Barbara Negri,S. Nenonen,Steve O'Dell,M. Perri,Raffaele Piazzolla,S. Pieraccini,Maura Pilia,Simonetta Puccetti,Brian D. Ramsey,John Rankin,John Rankin,Ajay Ratheesh,Ajay Ratheesh,A. Rubini,Francesco Santoli,Paolo Sarra,E. Scalise,Andrea Sciortino,P. Soffitta,Toru Tamagawa,Allyn F. Tennant,Antonino Tobia,Alessio Trois,K. Uchiyama,Marco Vimercati,Martin C. Weisskopf,Fei Xie,Francesco Zanetti,Y. Zhou +100 more
TL;DR: In this paper, the design, manufacturing, and test of the IXPE focal plane detectors are reviewed, with particular emphasis on the connection between the science drivers, the performance metrics and the operational aspects, and a thorough characterization of the GPDs in terms of effective noise, trigger efficiency, dead time, uniformity of response, and spectral and polarimetric performance.
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Polarized blazar X-rays imply particle acceleration in shocks
Ioannis Liodakis,Alan P. Marscher,Ivan Agudo,Andrei Berdyugin,Maria-Isabel Bernardos,G. Bonnoli,G. A. Borman,Carolina Casadio,V. Casanova,E. Cavazzuti,N. Rodriguez Cavero,L. Di Gesu,N. Di Lalla,I. Donnarumma,S. Ehlert,Manel Errando,Juan C Escudero,Maya García-Comas,Beatriz Agis-Gonzalez,C. Husillos,Jenni Jormanainen,Svetlana G. Jorstad,Masato Kagitani,E. N. Kopatskaya,Vadim Kravtsov,Henric Krawczynski,Elina Lindfors,Elena G. Larionova,G. M. Madejski,Frédéric Baron,Alessandro Marchini,Herman L. Marshall,D. A. Morozova,Francesco Massaro,Joseph R. Masiero,Dimitri Mawet,R. Middei,Maxwell A. Millar-Blanchaer,Ioannis Myserlis,M. Negro,Kari Nilsson,Stephen L. O'Dell,Nicola Omodei,Luigi Pacciani,Alessandro Paggi,Georgia Panopoulou,A. L. Peirson,M. Perri,P.-O. Petrucci,Juri Poutanen,Simonetta Puccetti,Roger W. Romani,Takeshi Sakanoi,Sergey S. Savchenko,Alfredo Sota,Fabrizio Tavecchio,Samaporn Tinyanont,A.A. Vasilyev,Z. R. Weaver,A. V. Zhovtan,L. A. Antonelli,Matteo Bachetti,Luca Baldini,W. H. Baumgartner,Ronaldo Bellazzini,F. Bianchi,Stephen D. Bongiorno,R. Bonino,A. Brez,Niccolò Bucciantini,Fiamma Capitanio,S. Castellano,Stefano Ciprini,Enrico Costa,A. de Rosa,E. Del Monte,A. Di Marco,Victor Doroshenko,Michal Dovciak,Teruaki Enoto,Y. Evangelista,Sergio Fabiani,Riccardo Ferrazzoli,Javier A. García,Shuichi Gunji,Kiyoshi Hayashida,Jeremy S. Heyl,Wataru Iwakiri,Vladimir Karas,Takao Kitaguchi,Jeffrey Kolodziejczak,Fabio La Monaca,Luca Latronico,S. Maldera,Alberto Manfreda,Andrea Marinucci,Giorgio Matt,Ikuyuki Mitsuishi,Tsunefumi Mizuno,Fabio Muleri,Stephen Ng,Chiara Oppedisano,Alessandro Papitto,George G. Pavlov,Melissa Pesce-Rollins,M. Pilia,A. Possenti,Brian D. Ramsey,John Rankin,Ajay Ratheesh,Carmelo Sgrò,Patrick Slane,Paolo Soffitta,Gloria Spandre,Toru Tamagawa,Roberto Taverna,Yuzuru Tawara,Allyn F. Tennant,Nicolas Thomas,Francesco Tombesi,Alessio Trois,Sergey S. Tsygankov,Roberto Turolla,Jacco Vink,Martin C. Weisskopf,Kinwah Wu,Fei Xie,Silvia Zane +127 more
TL;DR: Weisskopf et al. as discussed by the authors reported the first-ever detection of X-ray polarization from the jet in an accreting supermassive black hole system, the blazar Markarian 501 (Mrk 501).
Handling the Background in IXPE Polarimetric Data
A. Di Marco,Paolo Soffitta,Enrico Costa,Riccardo Ferrazzoli,Fabio La Monaca,John Rankin,Ajay Ratheesh,Fei Xie,Luca Baldini,E. Del Monte,S. Ehlert,Sergio Fabiani,Dawoon E. Kim,Fabio Muleri,Stephen L. O'Dell,Brian D. Ramsey,Alda Rubini,Carmelo Sgrò,Stefano Silvestri,Allyn F. Tennant,Martin C. Weisskopf +20 more
TL;DR: In this paper , the authors present a possible guideline to obtain an optimal background selection in polarimetric analysis, and a rejection strategy to remove instrumental background, based on the analysis of IXPE observations.
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Prompt Emission Polarimetry of Gamma-Ray Bursts with the AstroSat CZT Imager
Tanmoy Chattopadhyay,Santosh V. Vadawale,E. Aarthy,N. P. S. Mithun,Vikas Chand,Ajay Ratheesh,Rupal Basak,Rupal Basak,Rupal Basak,A. R. Rao,Varun Bhalerao,Sujay Mate,Sujay Mate,B. Arvind,B. Arvind,Vidushi Sharma,Dipankar Bhattacharya +16 more
TL;DR: X-ray and gamma-ray polarization measurements of the prompt emission of Gamma-ray bursts (GRBs) are believed to be extremely important for testing various models of GRBs as mentioned in this paper.
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