Details
| Original language | English |
|---|---|
| Article number | L2 |
| Journal | Astrophysical Journal Letters |
| Volume | 809 |
| Issue number | 1 |
| Publication status | Published - 4 Aug 2015 |
Abstract
We report the discovery of PSR J1906+0722, a gamma-ray pulsar detected as part of a blind survey of unidentified Fermi Large Area Telescope (LAT) sources being carried out on the volunteer distributed computing system, Einstein@Home. This newly discovered pulsar previously appeared as the most significant remaining unidentified gamma-ray source without a known association in the second Fermi-LAT source catalog (2FGL) and was among the top 10 most significant unassociated sources in the recent third catalog (3FGL). PSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of 8.9 Hz, a characteristic age of 49 kyr, and spin-down power erg s-1. In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar (). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. An off-pulse analysis of the gamma-ray flux from the location of PSR J1906+0722 revealed the presence of an additional nearby source, which may be emission from the interaction between a neighboring supernova remnant and a molecular cloud. We discuss possible effects which may have hindered the detection of PSR J1906+0722 in previous searches and describe the methods by which these effects were mitigated in this survey. We also demonstrate the use of advanced timing methods for estimating the positional, spin and glitch parameters of difficult-to-time pulsars such as this.
Keywords
- gamma rays: stars, pulsars: individual (PSR J1906+0722)
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Astronomy and Astrophysics
- Earth and Planetary Sciences(all)
- Space and Planetary Science
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In: Astrophysical Journal Letters, Vol. 809, No. 1, L2, 04.08.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - PSR J1906+0722
T2 - An elusive gamma-ray pulsar
AU - Clark, C. J.
AU - Pletsch, H. J.
AU - Wu, J.
AU - Guillemot, L.
AU - Ackermann, M.
AU - Allen, B.
AU - De Angelis, A.
AU - Aulbert, C.
AU - Baldini, L.
AU - Ballet, J.
AU - Barbiellini, G.
AU - Bastieri, D.
AU - Bellazzini, R.
AU - Bissaldi, E.
AU - Bock, O.
AU - Bonino, R.
AU - Bottacini, E.
AU - Brandt, T. J.
AU - Bregeon, J.
AU - Bruel, P.
AU - Buson, S.
AU - Caliandro, G. A.
AU - Cameron, R. A.
AU - Caragiulo, M.
AU - Caraveo, P. A.
AU - Cecchi, C.
AU - Champion, D. J.
AU - Charles, E.
AU - Chekhtman, A.
AU - Chiang, J.
AU - Chiaro, G.
AU - Ciprini, S.
AU - Claus, R.
AU - Cohen-Tanugi, J.
AU - Cuéllar, A.
AU - Cutini, S.
AU - D'Ammando, F.
AU - Desiante, R.
AU - Drell, P. S.
AU - Eggenstein, H. B.
AU - Favuzzi, C.
AU - Fehrmann, H.
AU - Ferrara, E. C.
AU - Focke, W. B.
AU - Franckowiak, A.
AU - Fusco, P.
AU - Gargano, F.
AU - Gasparrini, D.
AU - Giglietto, N.
AU - Giordano, F.
AU - Glanzman, T.
AU - Godfrey, G.
AU - Grenier, I. A.
AU - Grove, J. E.
AU - Guiriec, S.
AU - Harding, A. K.
AU - Hays, E.
AU - Hewitt, J. W.
AU - Hill, A. B.
AU - Horan, D.
AU - Hou, X.
AU - Jogler, T.
AU - Johnson, A. S.
AU - Jóhannesson, G.
AU - Kramer, M.
AU - Krauss, F.
AU - Kuss, M.
AU - Laffon, H.
AU - Larsson, S.
AU - Latronico, L.
AU - Li, J.
AU - Li, L.
AU - Longo, F.
AU - Loparco, F.
AU - Lovellette, M. N.
AU - Lubrano, P.
AU - Machenschalk, B.
AU - Manfreda, A.
AU - Marelli, M.
AU - Mayer, M.
AU - Mazziotta, M. N.
AU - Michelson, P. F.
AU - Mizuno, T.
AU - Monzani, M. E.
AU - Morselli, A.
AU - Moskalenko, I. V.
AU - Murgia, S.
AU - Nuss, E.
AU - Ohsugi, T.
AU - Orienti, M.
AU - Orlando, E.
AU - Palma, F. De
AU - Paneque, D.
AU - Pesce-Rollins, M.
AU - Piron, F.
AU - Pivato, G.
AU - Rainò, S.
AU - Rando, R.
AU - Razzano, M.
AU - Reimer, A.
AU - Parkinson, P. M.Saz
AU - Schaal, M.
AU - Schulz, A.
AU - Sgrò, C.
AU - Siskind, E. J.
AU - Spada, F.
AU - Spandre, G.
AU - Spinelli, P.
AU - Suson, D. J.
AU - Takahashi, H.
AU - Thayer, J. B.
AU - Tibaldo, L.
AU - Torne, P.
AU - Torres, D. F.
AU - Tosti, G.
AU - Troja, E.
AU - Vianello, G.
AU - Wood, K. S.
AU - Wood, M.
AU - Yassine, M.
N1 - Publisher Copyright: © 2015. The American Astronomical Society. All rights reserved..
PY - 2015/8/4
Y1 - 2015/8/4
N2 - We report the discovery of PSR J1906+0722, a gamma-ray pulsar detected as part of a blind survey of unidentified Fermi Large Area Telescope (LAT) sources being carried out on the volunteer distributed computing system, Einstein@Home. This newly discovered pulsar previously appeared as the most significant remaining unidentified gamma-ray source without a known association in the second Fermi-LAT source catalog (2FGL) and was among the top 10 most significant unassociated sources in the recent third catalog (3FGL). PSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of 8.9 Hz, a characteristic age of 49 kyr, and spin-down power erg s-1. In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar (). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. An off-pulse analysis of the gamma-ray flux from the location of PSR J1906+0722 revealed the presence of an additional nearby source, which may be emission from the interaction between a neighboring supernova remnant and a molecular cloud. We discuss possible effects which may have hindered the detection of PSR J1906+0722 in previous searches and describe the methods by which these effects were mitigated in this survey. We also demonstrate the use of advanced timing methods for estimating the positional, spin and glitch parameters of difficult-to-time pulsars such as this.
AB - We report the discovery of PSR J1906+0722, a gamma-ray pulsar detected as part of a blind survey of unidentified Fermi Large Area Telescope (LAT) sources being carried out on the volunteer distributed computing system, Einstein@Home. This newly discovered pulsar previously appeared as the most significant remaining unidentified gamma-ray source without a known association in the second Fermi-LAT source catalog (2FGL) and was among the top 10 most significant unassociated sources in the recent third catalog (3FGL). PSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of 8.9 Hz, a characteristic age of 49 kyr, and spin-down power erg s-1. In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar (). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. An off-pulse analysis of the gamma-ray flux from the location of PSR J1906+0722 revealed the presence of an additional nearby source, which may be emission from the interaction between a neighboring supernova remnant and a molecular cloud. We discuss possible effects which may have hindered the detection of PSR J1906+0722 in previous searches and describe the methods by which these effects were mitigated in this survey. We also demonstrate the use of advanced timing methods for estimating the positional, spin and glitch parameters of difficult-to-time pulsars such as this.
KW - gamma rays: stars
KW - pulsars: individual (PSR J1906+0722)
UR - http://www.scopus.com/inward/record.url?scp=84939162392&partnerID=8YFLogxK
U2 - 10.1088/2041-8205/809/1/L2
DO - 10.1088/2041-8205/809/1/L2
M3 - Article
AN - SCOPUS:84939162392
VL - 809
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
SN - 2041-8205
IS - 1
M1 - L2
ER -