Abstract
We report on the Fermi Large Area Telescope's detection of γ-ray (>100 mega-electron volts) pulsations from pulsar J1823-3021A in the globular cluster NGC 6624 with high significance (∼7 σ). Its γ-ray luminosity, Lγ = (8.4 ± 1.6) × 1034 ergs per second, is the highest observed for any millisecond pulsar (MSP) to date, and it accounts for most of the cluster emission. The nondetection of the cluster in the off-pulse phase implies that it contains <32 γ-ray MSPs, not ∼100 as previously estimated. The γ-ray luminosity indicates that the unusually large rate of change of its period is caused by its intrinsic spin-down. This implies that J1823-3021A has the largest magnetic field and is the youngest MSP ever detected and that such anomalous objects might be forming at rates comparable to those of the more normal MSPs.
| Original language | English |
|---|---|
| Pages (from-to) | 1107-1110 |
| Number of pages | 4 |
| Journal | Science |
| Volume | 334 |
| Issue number | 6059 |
| DOIs | |
| Publication status | Published - 2011 Nov 25 |
ASJC Scopus subject areas
- General
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Fermi detection of a luminous γ-ray pulsar in a globular cluster. / Freire, P. C.C.; Abdo, A. A.; Ajello, M.; Allafort, A.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Camilo, F.; Caraveo, P. A.; Cecchi, C.; Çelik, Ö; Charles, E.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cognard, I.; Cohen-Tanugi, J.; Cominsky, L. R.; De Palma, F.; Dermer, C. D.; Do Couto E Silva, E.; Dormody, M.; Drell, P. S.; Dubois, R.; Dumora, D.; Espinoza, C. M.; Favuzzi, C.; Fegan, S. J.; Ferrara, E. C.; Focke, W. B.; Fortin, P.; Fukazawa, Y.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Giglietto, N.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grondin, M. H.; Grove, J. E.; Guillemot, L.; Guiriec, S.; Hadasch, D.; Harding, A. K.; Jóhannesson, G.; Johnson, A. S.; Johnson, T. J.; Johnston, S.; Katagiri, H.; Kataoka, J.; Keith, M.; Kerr, M.; Knödlseder, J.; Kramer, M.; Kuss, M.; Lande, J.; Latronico, L.; Lee, S. H.; Lemoine-Goumard, M.; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Lyne, A. G.; Manchester, R. N.; Marelli, M.; Mazziotta, M. N.; McEnery, J. E.; Michelson, P. F.; Mizuno, T.; Moiseev, A. A.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nakamori, T.; Nolan, P. L.; Norris, J. P.; Nuss, E.; Ohsugi, T.; Okumura, A.; Omodei, N.; Orlando, E.; Ozaki, M.; Paneque, D.; Parent, D.; Pesce-Rollins, M.; Pierbattista, M.; Piron, F.; Porter, T. A.; Rainò, S.; Ransom, S. M.; Ray, P. S.; Reimer, A.; Reimer, O.; Reposeur, T.; Ritz, S.; Romani, R. W.; Roth, M.; Sadrozinski, H. F.W.; Saz Parkinson, P. M.; Sgrò, C.; Shannon, R.; Siskind, E. J.; Smith, D. A.; Smith, P. D.; Spinelli, P.; Stappers, B. W.; Suson, D. J.; Takahashi, H.; Tanaka, T.; Tauris, T. M.; Thayer, J. B.; Theureau, G.; Thompson, D. J.; Thorsett, S. E.; Tibaldo, L.; Torres, D. F.; Tosti, G.; Troja, E.; Vandenbroucke, J.; Van Etten, A.; Vasileiou, V.; Venter, C.; Vianello, G.; Vilchez, N.; Vitale, V.; Waite, A. P.; Wang, P.; Wood, K. S.; Yang, Z.; Ziegler, M.; Zimmer, S.
In: Science, Vol. 334, No. 6059, 25.11.2011, p. 1107-1110.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Fermi detection of a luminous γ-ray pulsar in a globular cluster
AU - Freire, P. C.C.
AU - Abdo, A. A.
AU - Ajello, M.
AU - Allafort, A.
AU - Ballet, J.
AU - Barbiellini, G.
AU - Bastieri, D.
AU - Bechtol, K.
AU - Bellazzini, R.
AU - Blandford, R. D.
AU - Bloom, E. D.
AU - Bonamente, E.
AU - Borgland, A. W.
AU - Brigida, M.
AU - Bruel, P.
AU - Buehler, R.
AU - Buson, S.
AU - Caliandro, G. A.
AU - Cameron, R. A.
AU - Camilo, F.
AU - Caraveo, P. A.
AU - Cecchi, C.
AU - Çelik, Ö
AU - Charles, E.
AU - Chekhtman, A.
AU - Cheung, C. C.
AU - Chiang, J.
AU - Ciprini, S.
AU - Claus, R.
AU - Cognard, I.
AU - Cohen-Tanugi, J.
AU - Cominsky, L. R.
AU - De Palma, F.
AU - Dermer, C. D.
AU - Do Couto E Silva, E.
AU - Dormody, M.
AU - Drell, P. S.
AU - Dubois, R.
AU - Dumora, D.
AU - Espinoza, C. M.
AU - Favuzzi, C.
AU - Fegan, S. J.
AU - Ferrara, E. C.
AU - Focke, W. B.
AU - Fortin, P.
AU - Fukazawa, Y.
AU - Fusco, P.
AU - Gargano, F.
AU - Gasparrini, D.
AU - Gehrels, N.
AU - Germani, S.
AU - Giglietto, N.
AU - Giordano, F.
AU - Giroletti, M.
AU - Glanzman, T.
AU - Godfrey, G.
AU - Grenier, I. A.
AU - Grondin, M. H.
AU - Grove, J. E.
AU - Guillemot, L.
AU - Guiriec, S.
AU - Hadasch, D.
AU - Harding, A. K.
AU - Jóhannesson, G.
AU - Johnson, A. S.
AU - Johnson, T. J.
AU - Johnston, S.
AU - Katagiri, H.
AU - Kataoka, J.
AU - Keith, M.
AU - Kerr, M.
AU - Knödlseder, J.
AU - Kramer, M.
AU - Kuss, M.
AU - Lande, J.
AU - Latronico, L.
AU - Lee, S. H.
AU - Lemoine-Goumard, M.
AU - Longo, F.
AU - Loparco, F.
AU - Lovellette, M. N.
AU - Lubrano, P.
AU - Lyne, A. G.
AU - Manchester, R. N.
AU - Marelli, M.
AU - Mazziotta, M. N.
AU - McEnery, J. E.
AU - Michelson, P. F.
AU - Mizuno, T.
AU - Moiseev, A. A.
AU - Monte, C.
AU - Monzani, M. E.
AU - Morselli, A.
AU - Moskalenko, I. V.
AU - Murgia, S.
AU - Nakamori, T.
AU - Nolan, P. L.
AU - Norris, J. P.
AU - Nuss, E.
AU - Ohsugi, T.
AU - Okumura, A.
AU - Omodei, N.
AU - Orlando, E.
AU - Ozaki, M.
AU - Paneque, D.
AU - Parent, D.
AU - Pesce-Rollins, M.
AU - Pierbattista, M.
AU - Piron, F.
AU - Porter, T. A.
AU - Rainò, S.
AU - Ransom, S. M.
AU - Ray, P. S.
AU - Reimer, A.
AU - Reimer, O.
AU - Reposeur, T.
AU - Ritz, S.
AU - Romani, R. W.
AU - Roth, M.
AU - Sadrozinski, H. F.W.
AU - Saz Parkinson, P. M.
AU - Sgrò, C.
AU - Shannon, R.
AU - Siskind, E. J.
AU - Smith, D. A.
AU - Smith, P. D.
AU - Spinelli, P.
AU - Stappers, B. W.
AU - Suson, D. J.
AU - Takahashi, H.
AU - Tanaka, T.
AU - Tauris, T. M.
AU - Thayer, J. B.
AU - Theureau, G.
AU - Thompson, D. J.
AU - Thorsett, S. E.
AU - Tibaldo, L.
AU - Torres, D. F.
AU - Tosti, G.
AU - Troja, E.
AU - Vandenbroucke, J.
AU - Van Etten, A.
AU - Vasileiou, V.
AU - Venter, C.
AU - Vianello, G.
AU - Vilchez, N.
AU - Vitale, V.
AU - Waite, A. P.
AU - Wang, P.
AU - Wood, K. S.
AU - Yang, Z.
AU - Ziegler, M.
AU - Zimmer, S.
PY - 2011/11/25
Y1 - 2011/11/25
N2 - We report on the Fermi Large Area Telescope's detection of γ-ray (>100 mega-electron volts) pulsations from pulsar J1823-3021A in the globular cluster NGC 6624 with high significance (∼7 σ). Its γ-ray luminosity, Lγ = (8.4 ± 1.6) × 1034 ergs per second, is the highest observed for any millisecond pulsar (MSP) to date, and it accounts for most of the cluster emission. The nondetection of the cluster in the off-pulse phase implies that it contains <32 γ-ray MSPs, not ∼100 as previously estimated. The γ-ray luminosity indicates that the unusually large rate of change of its period is caused by its intrinsic spin-down. This implies that J1823-3021A has the largest magnetic field and is the youngest MSP ever detected and that such anomalous objects might be forming at rates comparable to those of the more normal MSPs.
AB - We report on the Fermi Large Area Telescope's detection of γ-ray (>100 mega-electron volts) pulsations from pulsar J1823-3021A in the globular cluster NGC 6624 with high significance (∼7 σ). Its γ-ray luminosity, Lγ = (8.4 ± 1.6) × 1034 ergs per second, is the highest observed for any millisecond pulsar (MSP) to date, and it accounts for most of the cluster emission. The nondetection of the cluster in the off-pulse phase implies that it contains <32 γ-ray MSPs, not ∼100 as previously estimated. The γ-ray luminosity indicates that the unusually large rate of change of its period is caused by its intrinsic spin-down. This implies that J1823-3021A has the largest magnetic field and is the youngest MSP ever detected and that such anomalous objects might be forming at rates comparable to those of the more normal MSPs.
UR - http://www.scopus.com/inward/record.url?scp=82255179077&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=82255179077&partnerID=8YFLogxK
U2 - 10.1126/science.1207141
DO - 10.1126/science.1207141
M3 - Article
C2 - 22052973
AN - SCOPUS:82255179077
VL - 334
SP - 1107
EP - 1110
JO - Science
JF - Science
SN - 0036-8075
IS - 6059
ER -