PSR J1744−7619

Date of the discovery: 28 February 2018

Short Description: The pulsar PSR J1744−7619 is the first pulsar to be detected only in gamma-rays and not in radio-waves. Models predict at least a weak radio-signal, so the pulsar must be either extremely radio-faint or the models are incomplete. The discovery was made with idle time of donated CPU-time.

owners of computers that made this discovery: Darrell Hoberer, the ATLAS Cluster, Igor Yakushin, Keith Pickstone

Researchers in the discovery paper: Colin J. Clark, Holger J. Pletsch, Jason Wu, Lucas Guillemot, Matthew Kerr, Tyrel J. Johnson, Fernando Camilo, David Salvetti, Bruce Allen, David Anderson, Carsten Aulbert, Christian Beer, Oliver Bock, Andres Cuéllar, Heinz-Bernd Eggenstein, Henning Fehrmann, Michael Kramer, Shawn A. Kwang, Bernd Machenschalk, Lars Nieder, Markus Ackermann, Marco Ajello, Luca Baldini, Jean Ballet, Guido Barbiellini, Denis Bastieri, Ronaldo Bellazzini, Elisabetta Bissaldi, Roger D. Blandford, Elliott D. Bloom, Raffaella Bonino, Eugenio Bottacini, Terri J. Brandt, Johan Bregeon, Philippe Bruel, Rolf Buehler, Toby H. Burnett, Sara Buson, Rob A. Cameron, Regina Caputo, Patrizia A. Caraveo, Elisabetta Cavazzuti, Claudia Cecchi, Eric Charles, Alexandre Chekhtman, Stefano Ciprini, Lynn R. Cominsky, Denise Costantin, Sara Cutini, Filippo D’Ammando, Andrea De Luca, Rachele Desiante, Leonardo Di Venere, Mattia Di Mauro, Niccolò Di Lalla, Seth W. Digel, Cecilia Favuzzi, Elizabeth C. Ferrara, Anna Franckowiak, Yasushi Fukazawa, Stefan Funk, Piergiorgio Fusco, Fabio Gargano, Dario Gasparrini, Nico Giglietto, Francesco Giordano, Marcello Giroletti, Germán A. Gomez-Vargas, David Green, Isabelle A. Grenier, Sylvain Guiriec, Alice K. Harding, John W. Hewitt, Deirdre Horan, Guðlaugur Jóhannesson, Shiki Kensei, Michael Kuss, Giovanni La Mura, Stefan Larsson, Luca Latronico, Jian Li, Francesco Longo, Francesco Loparco, Michael N. Lovellette, Pasquale Lubrano, Jeffrey D. Magill, Simone Maldera, Alberto Manfreda, Mario N. Mazziotta, Julie E. McEnery, Peter F. Michelson, Nestor Mirabal, Warit Mitthumsiri, Tsunefumi Mizuno, Maria Elena Monzani, Aldo Morselli, Igor V. Moskalenko, Eric Nuss, Takashi Ohsugi, Nicola Omodei, Monica Orienti, Elena Orlando, Michele Palatiello, Vaidehi S. Paliya, Francesco de Palma, David Paneque, Jeremy S. Perkins, Massimo Persic, Melissa Pesce-Rollins, Troy A. Porter, Giacomo Principe, Silvia Rainò, Riccardo Rando, Paul S. Ray, Massimiliano Razzano, Anita Reimer, Olaf Reimer, Roger W. Romani, Pablo M. Saz Parkinson, Carmelo Sgrò, Eric J. Siskind, David A. Smith, Francesca Spada, Gloria Spandre, Paolo Spinelli, Jana B. Thayer, David J. Thompson, Diego F. Torres, Eleonora Troja, Giacomo Vianello, Kent Wood and Matthew Wood

Link to paper in ADS: https://ui.adsabs.harvard.edu/abs/2018SciA….4E7228C/abstract

SIMBAD page: http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=PSR+J1744%E2%88%927619&submit=SIMBAD+search

Telescopes involved: Fermi Large Area Telescope (Fermi-LAT), Parkes Radio Telescope

Figure 1 of the paper. On the left is the pulsar PSR J1035−6720, which was also discovered in this study, showing faint radio pulses (blue line). PSR J1744−7619 is on the right. The figure shows the folded profile of the pulses.
f1.large_-1
Other pages:

Press Release: https://www.mpifr-bonn.mpg.de/pressreleases/2018/2

Project websites: Einstein @ home

Credit for the header image: Knispel/Clark/Max Planck Institute for Gravitational Physics/NASA/DOE/Fermi LAT Collaboration

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