Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing
We report the discovery of the 20.7ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo telescope. Follow-up observations with the Arecibo telescope confirm the binary nature of the system. We obtain a circular or...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/55710 |
| _version_ | 1848759688159559680 |
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| author | Knispel, B. Lazarus, P. Allen, B. Anderson, D. Aulbert, C. Bhat, Ramesh Bock, O. Bogdanov, S. Brazier, A. Camilo, F. Chatterjee, S. Cordes, J. Crawford, F. Deneva, J. Desvignes, G. Fehrmann, H. Freire, P. Hammer, D. Hessels, J. Jenet, F. Kaspi, V. Kramer, M. Van Leeuwen, J. Lorimer, D. Lyne, A. MacHenschalk, B. McLaughlin, M. Messenger, C. Nice, D. Papa, M. Pletsch, H. Prix, R. Ransom, S. Siemens, X. Stairs, I. Stappers, B. Stovall, K. Venkataraman, A. |
| author_facet | Knispel, B. Lazarus, P. Allen, B. Anderson, D. Aulbert, C. Bhat, Ramesh Bock, O. Bogdanov, S. Brazier, A. Camilo, F. Chatterjee, S. Cordes, J. Crawford, F. Deneva, J. Desvignes, G. Fehrmann, H. Freire, P. Hammer, D. Hessels, J. Jenet, F. Kaspi, V. Kramer, M. Van Leeuwen, J. Lorimer, D. Lyne, A. MacHenschalk, B. McLaughlin, M. Messenger, C. Nice, D. Papa, M. Pletsch, H. Prix, R. Ransom, S. Siemens, X. Stairs, I. Stappers, B. Stovall, K. Venkataraman, A. |
| author_sort | Knispel, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We report the discovery of the 20.7ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo telescope. Follow-up observations with the Arecibo telescope confirm the binary nature of the system. We obtain a circular orbital solution with an orbital period of 9.4hr, a projected orbital radius of 2.8lt-s, and a mass function of f = 0.15 M ? by analysis of spin period measurements. No evidence of orbital eccentricity is apparent; we set a 2s upper limit e ? 1.7 × 10 -3 . The orbital parameters suggest a massive white dwarf companion with a minimum mass of 0.95 M ? , assuming a pulsar mass of 1.4 M ? . Most likely, this pulsar belongs to the rare class of intermediate-mass binary pulsars. Future timing observations will aim to determine the parameters of this system further, measure relativistic effects, and elucidate the nature of the companion star. © 2011. The American Astronomical Society. All rights reserved. |
| first_indexed | 2025-11-14T10:03:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-55710 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:03:51Z |
| publishDate | 2011 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-557102023-02-22T06:24:17Z Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing Knispel, B. Lazarus, P. Allen, B. Anderson, D. Aulbert, C. Bhat, Ramesh Bock, O. Bogdanov, S. Brazier, A. Camilo, F. Chatterjee, S. Cordes, J. Crawford, F. Deneva, J. Desvignes, G. Fehrmann, H. Freire, P. Hammer, D. Hessels, J. Jenet, F. Kaspi, V. Kramer, M. Van Leeuwen, J. Lorimer, D. Lyne, A. MacHenschalk, B. McLaughlin, M. Messenger, C. Nice, D. Papa, M. Pletsch, H. Prix, R. Ransom, S. Siemens, X. Stairs, I. Stappers, B. Stovall, K. Venkataraman, A. We report the discovery of the 20.7ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo telescope. Follow-up observations with the Arecibo telescope confirm the binary nature of the system. We obtain a circular orbital solution with an orbital period of 9.4hr, a projected orbital radius of 2.8lt-s, and a mass function of f = 0.15 M ? by analysis of spin period measurements. No evidence of orbital eccentricity is apparent; we set a 2s upper limit e ? 1.7 × 10 -3 . The orbital parameters suggest a massive white dwarf companion with a minimum mass of 0.95 M ? , assuming a pulsar mass of 1.4 M ? . Most likely, this pulsar belongs to the rare class of intermediate-mass binary pulsars. Future timing observations will aim to determine the parameters of this system further, measure relativistic effects, and elucidate the nature of the companion star. © 2011. The American Astronomical Society. All rights reserved. 2011 Journal Article http://hdl.handle.net/20.500.11937/55710 10.1088/2041-8205/732/1/L1 Institute of Physics Publishing unknown |
| spellingShingle | Knispel, B. Lazarus, P. Allen, B. Anderson, D. Aulbert, C. Bhat, Ramesh Bock, O. Bogdanov, S. Brazier, A. Camilo, F. Chatterjee, S. Cordes, J. Crawford, F. Deneva, J. Desvignes, G. Fehrmann, H. Freire, P. Hammer, D. Hessels, J. Jenet, F. Kaspi, V. Kramer, M. Van Leeuwen, J. Lorimer, D. Lyne, A. MacHenschalk, B. McLaughlin, M. Messenger, C. Nice, D. Papa, M. Pletsch, H. Prix, R. Ransom, S. Siemens, X. Stairs, I. Stappers, B. Stovall, K. Venkataraman, A. Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title | Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title_full | Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title_fullStr | Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title_full_unstemmed | Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title_short | Arecibo PALFA survey and Einstein@Home: Binary pulsar discovery by volunteer computing |
| title_sort | arecibo palfa survey and einstein@home: binary pulsar discovery by volunteer computing |
| url | http://hdl.handle.net/20.500.11937/55710 |