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

Abstract

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. Here, in an attempt to discover radio-quiet gamma-ray MSPs, we used the aggregated power from the computers of tens of thousands of volunteers participating in the Einstein@Home distributed computing project to search for pulsations from unidentified gamma-ray sources in Fermi Large Area Telescope data. This survey discovered two isolated MSPs, one of which is the only known rotation-powered MSP to remain undetected in radio observations. These gamma-ray MSPs were discovered in completely blind searches without prior constraints from other observations, raising hopes for detecting MSPs from a predicted Galactic bulge population.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; European Union (EU); National Aeronautic and Space Administration (NASA); Commonwealth of Australia; Commissariat a l'Energie Atomique et aux Energies Alternatives (CEA)
Contributing Org.:
Fermi LATCollaboration
OSTI Identifier:
1437576
Grant/Contract Number:  
1104902; 715051; PL 710/1-1; AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Clark, Colin J., Pletsch, Holger J., Wu, Jason, Guillemot, Lucas, Kerr, Matthew, Johnson, Tyrel J., Camilo, Fernando, Salvetti, David, Allen, Bruce, Anderson, David, Aulbert, Carsten, Beer, Christian, Bock, Oliver, Cuéllar, Andres, Eggenstein, Heinz-Bernd, Fehrmann, Henning, Kramer, Michael, Kwang, Shawn A., Machenschalk, Bernd, Nieder, Lars, Ackermann, Markus, Ajello, Marco, Baldini, Luca, Ballet, Jean, Barbiellini, Guido, Bastieri, Denis, Bellazzini, Ronaldo, Bissaldi, Elisabetta, Blandford, Roger D., Bloom, Elliott D., Bonino, Raffaella, Bottacini, Eugenio, Brandt, Terri J., Bregeon, Johan, Bruel, Philippe, Buehler, Rolf, Burnett, Toby H., Buson, Sara, Cameron, Rob A., Caputo, Regina, Caraveo, Patrizia A., Cavazzuti, Elisabetta, Cecchi, Claudia, Charles, Eric, Chekhtman, Alexandre, Ciprini, Stefano, Cominsky, Lynn R., Costantin, Denise, Cutini, Sara, D’Ammando, Filippo, De Luca, Andrea, Desiante, Rachele, Di Venere, Leonardo, Di Mauro, Mattia, Di Lalla, Niccolò, Digel, Seth W., Favuzzi, Cecilia, Ferrara, Elizabeth C., Franckowiak, Anna, Fukazawa, Yasushi, Funk, Stefan, Fusco, Piergiorgio, Gargano, Fabio, Gasparrini, Dario, Giglietto, Nico, Giordano, Francesco, Giroletti, Marcello, Gomez-Vargas, Germán A., Green, David, Grenier, Isabelle A., Guiriec, Sylvain, Harding, Alice K., Hewitt, John W., Horan, Deirdre, Jóhannesson, Guðlaugur, Kensei, Shiki, Kuss, Michael, La Mura, Giovanni, Larsson, Stefan, Latronico, Luca, Li, Jian, Longo, Francesco, Loparco, Francesco, Lovellette, Michael N., Lubrano, Pasquale, Magill, Jeffrey D., Maldera, Simone, Manfreda, Alberto, Mazziotta, Mario N., McEnery, Julie E., Michelson, Peter F., Mirabal, Nestor, Mitthumsiri, Warit, Mizuno, Tsunefumi, Monzani, Maria Elena, Morselli, Aldo, Moskalenko, Igor V., Nuss, Eric, Ohsugi, Takashi, Omodei, Nicola, Orienti, Monica, Orlando, Elena, Palatiello, Michele, Paliya, Vaidehi S., de Palma, Francesco, Paneque, David, Perkins, Jeremy S., Persic, Massimo, Pesce-Rollins, Melissa, Porter, Troy A., Principe, Giacomo, Rainò, Silvia, Rando, Riccardo, Ray, Paul S., Razzano, Massimiliano, Reimer, Anita, Reimer, Olaf, Romani, Roger W., Saz Parkinson, Pablo M., Sgrò, Carmelo, Siskind, Eric J., Smith, David A., Spada, Francesca, Spandre, Gloria, Spinelli, Paolo, Thayer, Jana B., Thompson, David J., Torres, Diego F., Troja, Eleonora, Vianello, Giacomo, Wood, Kent, and Wood, Matthew. Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar. United States: N. p., 2018. Web. doi:10.1126/sciadv.aao7228.
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Clark, Colin J., Pletsch, Holger J., Wu, Jason, Guillemot, Lucas, Kerr, Matthew, Johnson, Tyrel J., Camilo, Fernando, Salvetti, David, Allen, Bruce, Anderson, David, Aulbert, Carsten, Beer, Christian, Bock, Oliver, Cuéllar, Andres, Eggenstein, Heinz-Bernd, Fehrmann, Henning, Kramer, Michael, Kwang, Shawn A., Machenschalk, Bernd, Nieder, Lars, Ackermann, Markus, Ajello, Marco, Baldini, Luca, Ballet, Jean, Barbiellini, Guido, Bastieri, Denis, Bellazzini, Ronaldo, Bissaldi, Elisabetta, Blandford, Roger D., Bloom, Elliott D., Bonino, Raffaella, Bottacini, Eugenio, Brandt, Terri J., Bregeon, Johan, Bruel, Philippe, Buehler, Rolf, Burnett, Toby H., Buson, Sara, Cameron, Rob A., Caputo, Regina, Caraveo, Patrizia A., Cavazzuti, Elisabetta, Cecchi, Claudia, Charles, Eric, Chekhtman, Alexandre, Ciprini, Stefano, Cominsky, Lynn R., Costantin, Denise, Cutini, Sara, D’Ammando, Filippo, De Luca, Andrea, Desiante, Rachele, Di Venere, Leonardo, Di Mauro, Mattia, Di Lalla, Niccolò, Digel, Seth W., Favuzzi, Cecilia, Ferrara, Elizabeth C., Franckowiak, Anna, Fukazawa, Yasushi, Funk, Stefan, Fusco, Piergiorgio, Gargano, Fabio, Gasparrini, Dario, Giglietto, Nico, Giordano, Francesco, Giroletti, Marcello, Gomez-Vargas, Germán A., Green, David, Grenier, Isabelle A., Guiriec, Sylvain, Harding, Alice K., Hewitt, John W., Horan, Deirdre, Jóhannesson, Guðlaugur, Kensei, Shiki, Kuss, Michael, La Mura, Giovanni, Larsson, Stefan, Latronico, Luca, Li, Jian, Longo, Francesco, Loparco, Francesco, Lovellette, Michael N., Lubrano, Pasquale, Magill, Jeffrey D., Maldera, Simone, Manfreda, Alberto, Mazziotta, Mario N., McEnery, Julie E., Michelson, Peter F., Mirabal, Nestor, Mitthumsiri, Warit, Mizuno, Tsunefumi, Monzani, Maria Elena, Morselli, Aldo, Moskalenko, Igor V., Nuss, Eric, Ohsugi, Takashi, Omodei, Nicola, Orienti, Monica, Orlando, Elena, Palatiello, Michele, Paliya, Vaidehi S., de Palma, Francesco, Paneque, David, Perkins, Jeremy S., Persic, Massimo, Pesce-Rollins, Melissa, Porter, Troy A., Principe, Giacomo, Rainò, Silvia, Rando, Riccardo, Ray, Paul S., Razzano, Massimiliano, Reimer, Anita, Reimer, Olaf, Romani, Roger W., Saz Parkinson, Pablo M., Sgrò, Carmelo, Siskind, Eric J., Smith, David A., Spada, Francesca, Spandre, Gloria, Spinelli, Paolo, Thayer, Jana B., Thompson, David J., Torres, Diego F., Troja, Eleonora, Vianello, Giacomo, Wood, Kent, & Wood, Matthew. Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar. United States. doi:10.1126/sciadv.aao7228.
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Clark, Colin J., Pletsch, Holger J., Wu, Jason, Guillemot, Lucas, Kerr, Matthew, Johnson, Tyrel J., Camilo, Fernando, Salvetti, David, Allen, Bruce, Anderson, David, Aulbert, Carsten, Beer, Christian, Bock, Oliver, Cuéllar, Andres, Eggenstein, Heinz-Bernd, Fehrmann, Henning, Kramer, Michael, Kwang, Shawn A., Machenschalk, Bernd, Nieder, Lars, Ackermann, Markus, Ajello, Marco, Baldini, Luca, Ballet, Jean, Barbiellini, Guido, Bastieri, Denis, Bellazzini, Ronaldo, Bissaldi, Elisabetta, Blandford, Roger D., Bloom, Elliott D., Bonino, Raffaella, Bottacini, Eugenio, Brandt, Terri J., Bregeon, Johan, Bruel, Philippe, Buehler, Rolf, Burnett, Toby H., Buson, Sara, Cameron, Rob A., Caputo, Regina, Caraveo, Patrizia A., Cavazzuti, Elisabetta, Cecchi, Claudia, Charles, Eric, Chekhtman, Alexandre, Ciprini, Stefano, Cominsky, Lynn R., Costantin, Denise, Cutini, Sara, D’Ammando, Filippo, De Luca, Andrea, Desiante, Rachele, Di Venere, Leonardo, Di Mauro, Mattia, Di Lalla, Niccolò, Digel, Seth W., Favuzzi, Cecilia, Ferrara, Elizabeth C., Franckowiak, Anna, Fukazawa, Yasushi, Funk, Stefan, Fusco, Piergiorgio, Gargano, Fabio, Gasparrini, Dario, Giglietto, Nico, Giordano, Francesco, Giroletti, Marcello, Gomez-Vargas, Germán A., Green, David, Grenier, Isabelle A., Guiriec, Sylvain, Harding, Alice K., Hewitt, John W., Horan, Deirdre, Jóhannesson, Guðlaugur, Kensei, Shiki, Kuss, Michael, La Mura, Giovanni, Larsson, Stefan, Latronico, Luca, Li, Jian, Longo, Francesco, Loparco, Francesco, Lovellette, Michael N., Lubrano, Pasquale, Magill, Jeffrey D., Maldera, Simone, Manfreda, Alberto, Mazziotta, Mario N., McEnery, Julie E., Michelson, Peter F., Mirabal, Nestor, Mitthumsiri, Warit, Mizuno, Tsunefumi, Monzani, Maria Elena, Morselli, Aldo, Moskalenko, Igor V., Nuss, Eric, Ohsugi, Takashi, Omodei, Nicola, Orienti, Monica, Orlando, Elena, Palatiello, Michele, Paliya, Vaidehi S., de Palma, Francesco, Paneque, David, Perkins, Jeremy S., Persic, Massimo, Pesce-Rollins, Melissa, Porter, Troy A., Principe, Giacomo, Rainò, Silvia, Rando, Riccardo, Ray, Paul S., Razzano, Massimiliano, Reimer, Anita, Reimer, Olaf, Romani, Roger W., Saz Parkinson, Pablo M., Sgrò, Carmelo, Siskind, Eric J., Smith, David A., Spada, Francesca, Spandre, Gloria, Spinelli, Paolo, Thayer, Jana B., Thompson, David J., Torres, Diego F., Troja, Eleonora, Vianello, Giacomo, Wood, Kent, and Wood, Matthew. Wed . "Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar". United States. doi:10.1126/sciadv.aao7228. https://www.osti.gov/servlets/purl/1437576.
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@article{osti_1437576,
title = {Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar},
author = {Clark, Colin J. and Pletsch, Holger J. and Wu, Jason and Guillemot, Lucas and Kerr, Matthew and Johnson, Tyrel J. and Camilo, Fernando and Salvetti, David and Allen, Bruce and Anderson, David and Aulbert, Carsten and Beer, Christian and Bock, Oliver and Cuéllar, Andres and Eggenstein, Heinz-Bernd and Fehrmann, Henning and Kramer, Michael and Kwang, Shawn A. and Machenschalk, Bernd and Nieder, Lars and Ackermann, Markus and Ajello, Marco and Baldini, Luca and Ballet, Jean and Barbiellini, Guido and Bastieri, Denis and Bellazzini, Ronaldo and Bissaldi, Elisabetta and Blandford, Roger D. and Bloom, Elliott D. and Bonino, Raffaella and Bottacini, Eugenio and Brandt, Terri J. and Bregeon, Johan and Bruel, Philippe and Buehler, Rolf and Burnett, Toby H. and Buson, Sara and Cameron, Rob A. and Caputo, Regina and Caraveo, Patrizia A. and Cavazzuti, Elisabetta and Cecchi, Claudia and Charles, Eric and Chekhtman, Alexandre and Ciprini, Stefano and Cominsky, Lynn R. and Costantin, Denise and Cutini, Sara and D’Ammando, Filippo and De Luca, Andrea and Desiante, Rachele and Di Venere, Leonardo and Di Mauro, Mattia and Di Lalla, Niccolò and Digel, Seth W. and Favuzzi, Cecilia and Ferrara, Elizabeth C. and Franckowiak, Anna and Fukazawa, Yasushi and Funk, Stefan and Fusco, Piergiorgio and Gargano, Fabio and Gasparrini, Dario and Giglietto, Nico and Giordano, Francesco and Giroletti, Marcello and Gomez-Vargas, Germán A. and Green, David and Grenier, Isabelle A. and Guiriec, Sylvain and Harding, Alice K. and Hewitt, John W. and Horan, Deirdre and Jóhannesson, Guðlaugur and Kensei, Shiki and Kuss, Michael and La Mura, Giovanni and Larsson, Stefan and Latronico, Luca and Li, Jian and Longo, Francesco and Loparco, Francesco and Lovellette, Michael N. and Lubrano, Pasquale and Magill, Jeffrey D. and Maldera, Simone and Manfreda, Alberto and Mazziotta, Mario N. and McEnery, Julie E. and Michelson, Peter F. and Mirabal, Nestor and Mitthumsiri, Warit and Mizuno, Tsunefumi and Monzani, Maria Elena and Morselli, Aldo and Moskalenko, Igor V. and Nuss, Eric and Ohsugi, Takashi and Omodei, Nicola and Orienti, Monica and Orlando, Elena and Palatiello, Michele and Paliya, Vaidehi S. and de Palma, Francesco and Paneque, David and Perkins, Jeremy S. and Persic, Massimo and Pesce-Rollins, Melissa and Porter, Troy A. and Principe, Giacomo and Rainò, Silvia and Rando, Riccardo and Ray, Paul S. and Razzano, Massimiliano and Reimer, Anita and Reimer, Olaf and Romani, Roger W. and Saz Parkinson, Pablo M. and Sgrò, Carmelo and Siskind, Eric J. and Smith, David A. and Spada, Francesca and Spandre, Gloria and Spinelli, Paolo and Thayer, Jana B. and Thompson, David J. and Torres, Diego F. and Troja, Eleonora and Vianello, Giacomo and Wood, Kent and Wood, Matthew},
abstractNote = {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. Here, in an attempt to discover radio-quiet gamma-ray MSPs, we used the aggregated power from the computers of tens of thousands of volunteers participating in the Einstein@Home distributed computing project to search for pulsations from unidentified gamma-ray sources in Fermi Large Area Telescope data. This survey discovered two isolated MSPs, one of which is the only known rotation-powered MSP to remain undetected in radio observations. These gamma-ray MSPs were discovered in completely blind searches without prior constraints from other observations, raising hopes for detecting MSPs from a predicted Galactic bulge population.},
doi = {10.1126/sciadv.aao7228},
journal = {Science Advances},
number = 2,
volume = 4,
place = {United States},
year = {2018},
month = {2}
}
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DOI:  10.1126/sciadv.aao7228
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Figures / Tables:

Table 1 Table 1: Measured and derived properties of the newly discoveredMSPs. For timing parameters, we report the mean values from a Monte Carlo timing analysis and 1σ uncertainties on the final digits in parentheses. The first set of uncertainties on spectral parameters is statistical and the second set estimates the effectsmore » of systematic uncertainties in the LAT’s effective collecting area and the Galactic diffuse emission model. Timing parameters are in barycentric dynamical time (TDB) units. The spin-down power of PSR J1035−6720 has been corrected for the Doppler shift induced by its proper motion; only an upper limit is given for PSR J1744−7619, because this correction cannot be applied as a result of its uncertain distance. mas, milli–arc second.« less
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