Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar

@article{Clark2018EinsteinHomeDA,
  title={Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar},
  author={Colin J. Clark and H. J. Pletsch and Jason Wu and Lucas Guillemot and Matthew Kerr and Tyrel J. Johnson and Fernando Camilo and David Salvetti and Bruce Allen and David Anderson and C. Aulbert and C. Beer and Oliver Bock and Andres Cu{\'e}llar and H. B. Eggenstein and H. Fehrmann and Michael Kramer and S. Kwang and B. Machenschalk and Lars Nieder and Markus Ackermann and Marco Ajello and Luca Baldini and Jean Ballet and Guido Barbiellini and Denis Bastieri and Ronaldo Bellazzini and Elisabetta Bissaldi and Roger D. Blandford and Elliott D. Bloom and Raffaella Bonino and Eugenio Bottacini and Theresa J. Brandt and Johan Bregeon and Philippe Bruel and Rolf Buehler and Toby Burnett and Sara Buson and R. A. Cameron and Regina Caputo and Patrizia A. Caraveo and Elisabetta Cavazzuti and Claudia Cecchi and Eric Charles and A. Chekhtman and Stefano Ciprini and Lynn R. Cominsky and Denise Costantin and S. Cutini and Filippo D’Ammando and Andrea De Luca and R. Desiante and Leonardo Di Venere and Mattia Di Mauro and Niccolo’ Di Lalla and S. W. Digel and Cecilia Favuzzi and Elizabeth C. Ferrara and Anna Franckowiak and Yasushi Fukazawa and Stefan Funk and Piergiorgio Fusco and Fabio Gargano and Dario Gasparrini and Nicola Giglietto and Francesco Giordano and Marcello Giroletti and Germ{\'a}n A. G{\'o}mez-Vargas and D. Green and Isabelle A. Grenier and Sylvain Guiriec and Alice K. Harding and John W. Hewitt and Deirdre Horan and Guðlaugur J{\'o}hannesson and Shiki Kensei and Michael Kuss and Giovanni La Mura and Stefan Larsson and Luca Latronico and Jian Li and Francesco Longo and Francesco Loparco and Michael N. Lovellette and Pasquale Lubrano and J. D. Magill and Simone Maldera and Alberto Manfreda and Mario Nicola Mazziotta and Julie Mcenery and P. F. Michelson and Nestor Mirabal and W. Mitthumsiri and Tsunefumi Mizuno and M. E. Monzani and A. Morselli and Igor V. Moskalenko and Eric Nuss and Takashi Ohsugi and Nicola Omodei and Monica Orienti and E. Orlando and M. Palatiello and Vaidehi S. Paliya and Francesco de Palma and D. Paneque and Jeremy S. Perkins and Massimo Persic and Melissa Pesce-Rollins and Troy A. Porter and Giacomo Principe and S. Rain{\'o} and Riccardo Rando and Paul. S. Ray and Massimiliano Razzano and Anita Reimer and O. Reimer and Roger W. Romani and Pablo M. Saz Parkinson and Carmelo Sgro’ and Eric J. Siskind and David A. Smith and Francesca R. Spada and Gloria Spandre and Paolo Spinelli and Jana Thayer and David J. Thompson and Diego F. Torres and Eleonora Troja and Giacomo Vianello and Kent S. Wood and Matthew J.A. Wood},
  journal={Science Advances},
  year={2018},
  volume={4}
}
A citizen science project discovers a new type of gamma-ray millisecond pulsar with no detectable radio pulsations. Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsations have been detected from all rotation-powered MSPs. In an attempt to discover radio-quiet gamma-ray MSPs, we used the aggregated power from the computers of tens of thousands of volunteers… 
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16 Citations

Discovery of a Gamma-Ray Black Widow Pulsar by GPU-accelerated Einstein@Home
We report the discovery of 1.97 ms period gamma-ray pulsations from the 75 minute orbital-period binary pulsar now named PSR J1653−0158. The associated Fermi Large Area Telescope gamma-ray source…
Einstein@Home discovery of the gamma-ray millisecond pulsar PSR J2039–5617 confirms its predicted redback nature
The Fermi Large Area Telescope gamma-ray source 3FGL J2039.6–5618 contains a periodic optical and X-ray source that was predicted to be a ‘redback’ millisecond pulsar (MSP) binary system. However,…
Detection and Timing of Gamma-Ray Pulsations from the 707 Hz Pulsar J0952−0607
The Low-Frequency Array radio telescope discovered the 707 Hz binary millisecond pulsar (MSP) J0952−0607 in a targeted radio pulsation search of an unidentified Fermi gamma-ray source. This source…
A multiwavelength search for black widow and redback counterparts of candidate γ-ray millisecond pulsars
The wealth of detections of millisecond pulsars (MSPs) in $\gamma$-rays by {\em Fermi} has spurred searches for these objects among the several unidentified $\gamma$-ray sources. Interesting targets…
Investigation of the Millisecond Pulsar Origins by their Spin Periods at the Wavebands of Radio, X-Ray, and γ-Ray
To track the formation and evolution links of the millisecond pulsars (MSPs) powered by accretion and rotation in the Galactic field, we investigate the spin period (P) and spin-down power ( E ˙ )…
Fermi: Monitoring the Gamma-Ray Universe
Since 2008, the Large Area Telescope and the Gamma-ray Burst Monitor on the Fermi Gamma-ray Space Telescope have been monitoring the entire sky at energies from about 8 keV to more than 1 TeV.…
Exploiting Orbital Constraints from Optical Data to Detect Binary Gamma-Ray Pulsars
It is difficult to discover pulsars via their gamma-ray emission because current instruments typically detect fewer than one photon per million rotations. This creates a significant computing…
Serendipitous Discovery of Three Millisecond Pulsars with the GMRT in Fermi-directed Survey and Follow-up Radio Timing
We report the discovery of three millisecond pulsars (MSPs): PSRs J1120−3618, J1646−2142, and J1828+0625 with the Giant Metrewave Radio Telescope (GMRT) at a frequency of 322 MHz using a 32 MHz…
Investigation on the Binary Millisecond Pulsars at Radio and γ-Ray Wavelengths: Links with the Orbital Parameters
We analyze the properties of the binary millisecond pulsars (BMSPs), detected at radio and γ-ray wavelengths, and further probe their correlations with the binary orbital parameters and companion…
Pulsars – Extreme Cosmic Lighthouses
Pulsars are ancient, fast-rotating, highly-magnetised neutron stars that radiate across the electromagnetic spectrum. New discoveries by the Fermi Large Area Telescope (LAT) in the gamma-ray band…
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