Dr. Ajay Ratheesh Profile

Dr. Ajay Ratheesh

at INAF - Istituto di Astrofisica e Planetologia Spaziali

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Author

Publications (11)

Proceedings Article | 5 October 2023 Presentation + Paper

The Imaging x-ray polarimetry explorer (IXPE) at last!

Paolo Soffitta, Luca Baldini, Wayne Baumgartner, Ronaldo Bellazzini, Stephen Bongiorno, Niccolò Bucciantini, Enrico Costa, Michal Dovčiak, Steven Ehlert, Philip Kaaret, Jeffery Kolodziejczak, Luca Latronico, Frédéric Marin, Alan Marscher, Herman Marshall, Giorgio Matt, Fabio Muleri, Stephen O'Dell, Juri Poutanen, Brian Ramsey, Roger Romani, Patrick Slane, Allyn Tennant, Roberto Turolla, Martin Weisskopf, Iván Agudo, Lucio Angelo Antonelli, Matteo Bachetti, Stefano Bianchi, Raffaella Bonino, Alessandro Brez, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chiel-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Alessandro Di Marco, Immacolata Donnarumma, Victor Doroshenko, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier Garcia, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Henric Krawczynski, Fabio La Monaca, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Andrea Marinucci, Francesco Massaro, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, C.-Y. Ng, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George Pavlov, Abel Lawrence Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Maura Pilia, Andrea Possenti, Simonetta Puccetti, John Rankin, Ajay Ratheesh, Oliver Roberts, Carmelo Sgrò, Gloria Spandre, Douglas Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Nicholas Thomas, Francesco Tombesi, Alessio Trois, Sergey Tsygankov, Jacco Vink, Kinwah Wu, Fei Xie, Silvia Zane

Proceedings Volume 12678, 1267803 (2023) https://doi.org/10.1117/12.2677296

KEYWORDS: Polarization, X-rays, Polarimetry, X-ray astronomy, Pulsars, X-ray imaging, Magnetism, Observational astronomy, Physics, X-ray detectors

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Proceedings Article | 5 October 2023 Presentation + Paper

In-flight monitoring and calibration of the x-ray polarimeters on board IXPE: year two

John Rankin, Fabio Muleri, Riccardo Ferrazzoli, Luca Baldini, Wayne Baumgartner, Enrico Costa, Ettore Del Monte, Alessandro Di Marco, Kurt Dietz, Steven Ehlert, Sergio Fabiani, Philip Kaaret, Dawoon Kim, Jeffery Kolodziejczak, Fabio La Monaca, Luca Latronico, Carlo Lefevre, Alberto Manfreda, Stephen O'Dell, Matteo Perri, Simonetta Puccetti, Brian Ramsey, Ajay Ratheesh, Alda Rubini, Carmelo Sgrò, Paolo Soffitta, Doug Swartz, Allyn Tennant, Alessio Trois, Martin Weisskopf

Proceedings Volume 12678, 126780D (2023) https://doi.org/10.1117/12.2677264

KEYWORDS: Calibration, X-rays, Polarization, Modulation, Polarimetry, X-ray detectors, X-ray optics, X-ray imaging, X-ray astronomy

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SPIE Journal Paper | 27 July 2023 Open Access

Polarization properties of X-ray tubes used for Imaging X-ray Polarimetry Explorer calibration

Ajay Ratheesh, John Rankin, Enrico Costa, Ettore Del Monte, Alessandro Di Marco, Sergio Fabiani, Fabio La Monaca, Fabio Muleri, Alda Rubini, Paolo Soffitta, Luca Baldini, Massimo Minuti, Michele Pinchera, Carmelo Sgrò

JATIS, Vol. 9, Issue 03, 038002, (July 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.038002

KEYWORDS: X-rays, Polarization, Electrons, Photons, Modulation, X-ray detectors, Polarimetry, Calibration, X-ray imaging, Iron

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Proceedings Article | 31 August 2022 Presentation + Paper

In-orbit monitoring of the imaging x-ray polarimeters on-board IXPE

A. Di Marco, F. Muleri, S. Fabiani, F. La Monaca, J. Rankin, P. Soffitta, L. Baldini, E. Costa, E. Del Monte, R. Ferrazzoli, C. Lefevre, L. Maiolo, F. Maita, A. Manfreda, A. Morbidini, S. O'Dell, B. Ramsey, A. Ratheesh, C. Sgro', A. Trois, A. Tennant, M. Weisskopf

Proceedings Volume 12181, 121811C (2022) https://doi.org/10.1117/12.2629413

KEYWORDS: Calibration, Sensors, X-rays, Modulation, X-ray imaging, Polarimetry, Polarization, Iron, X-ray telescopes, Quantum efficiency

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SPIE Journal Paper | 14 April 2022 Open Access

Imaging X-ray Polarimetry Explorer: prelaunch

Martin Weisskopf, Paolo Soffitta, Luca Baldini, Brian Ramsey, Stephen O'Dell, Roger Romani, Giorgio Matt, William Deininger, Wayne Baumgartner, Ronaldo Bellazzini, Enrico Costa, Jeffery Kolodziejczak, Luca Latronico, Herman Marshall, Fabio Muleri, Stephen Bongiorno, Allyn Tennant, Niccolo Bucciantini, Michal Dovciak, Frédéric Marin, Alan Marscher, Juri Poutanen, Pat Slane, Roberto Turolla, William Kalinowski, Alessandro Di Marco, Sergio Fabiani, Massimo Minuti, Fabio La Monaca, Michele Pinchera, John Rankin, Carmelo Sgrò, Alessio Trois, Fei Xie, Cheryl Alexander, D. Zachery Allen, Fabrizio Amici, Jason Andersen, Angelo Antonelli, Spencer Antoniak, Primo Attiná, Mattia Barbanera, Matteo Bachetti , Randy Baggett, Jeff Bladt, Alessandro Brez, Raffaella Bonino, Christopher Boree, Fabio Borotto, Shawn Breeding, Daniele Brienza, H. Kyle Bygott, Ciro Caporale, Claudia Cardelli, Rita Carpentiero, Simone Castellano, Marco Castronuovo, Luca Cavalli, Elisabetta Cavazzuti, Marco Ceccanti, Mauro Centrone, Saverio Citraro, Fabio D'Amico, Elisa D'Alba, Laura Di Gesu, Ettore Del Monte, Kurtis Dietz, Niccolò Di Lalla, Giuseppe Di Persio, David Dolan, Immacolata Donnarumma, Yuri Evangelista, Kevin Ferrant, Riccardo Ferrazzoli, MacKenzie Ferrie, Joseph Footdale, Brent Forsyth, Michelle Foster, Benjamin Garelick, Shuichi Gunji, Eli Gurnee, Michael Head, Grant Hibbard, Samantha Johnson, Erik Kelly, Kiranmayee Kilaru, Carlo Lefevre, Shelley Le Roy, Pasqualino Loffredo, Paolo Lorenzi, Leonardo Lucchesi, Tyler Maddox, Guido Magazzu, Simone Maldera, Alberto Manfreda, Elio Mangraviti, Marco Marengo, Alessandra Marrocchesi, Francesco Massaro, David Mauger, Jeffery McCracken, Michael McEachen, Rondal Mize, Paolo Mereu, Scott Mitchell, Ikuyuki Mitsuishi, Alfredo Morbidini, Federico Mosti, Hikmat Nasimi, Barbara Negri, Michela Negro, Toan Nguyen, Isaac Nitschke, Alessio Nuti, Mitch Onizuka, Chiara Oppedisano, Leonardo Orsini, Darren Osborne, Richard Pacheco, Alessandro Paggi, Will Painter, Steven Pavelitz, Christina Pentz, Raffaele Piazzolla, Matteo Perri, Melissa Pesce-Rollins, Colin Peterson, Maura Pilia, Alessandro Profeti, Simonetta Puccetti, Jaganathan Ranganathan, Ajay Ratheesh, Lee Reedy, Noah Root, Alda Rubini, Stephanie Ruswick, Javier Sanchez, Paolo Sarra, Francesco Santoli, Emanuele Scalise, Andrea Sciortino, Christopher Schroeder, Tim Seek, Kalie Sosdian, Gloria Spandre, Chet Speegle, Toru Tamagawa, Marcello Tardiola, Antonino Tobia, Nicholas Thomas, Robert Valerie, Marco Vimercati, Amy Walden, Bruce Weddendorf, Jeffrey Wedmore, David Welch, Davide Zanetti, Francesco Zanetti

JATIS, Vol. 8, Issue 02, 026002, (April 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.026002

KEYWORDS: X-rays, Sensors, Calibration, Polarimetry, X-ray imaging, Polarization, Modulation, Space operations, X-ray sources, Spatial resolution

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