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Title: Fermi detection of a luminous γ-ray pulsar in a globular cluster

Abstract

Here, 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, L γ = (8.4 ± 1.6) × 10 34 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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
The Fermi LAT Collaboration
OSTI Identifier:
1356800
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 334; Journal Issue: 6059; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

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., Celik, O., 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., Johannesson, G., Johnson, A. S., Johnson, T. J., Johnston, S., Katagiri, H., Kataoka, J., Keith, M., Kerr, M., Knodlseder, 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., Raino, S., Ransom, S. M., Ray, P. S., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Romani, R. W., Roth, M., Sadrozinski, H. F. -. W., Parkinson, P. M. S., Sgro, 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., and Zimmer, S. Fermi detection of a luminous γ-ray pulsar in a globular cluster. United States: N. p., 2011. Web. doi:10.1126/science.1207141.
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., Celik, O., 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., Johannesson, G., Johnson, A. S., Johnson, T. J., Johnston, S., Katagiri, H., Kataoka, J., Keith, M., Kerr, M., Knodlseder, 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., Raino, S., Ransom, S. M., Ray, P. S., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Romani, R. W., Roth, M., Sadrozinski, H. F. -. W., Parkinson, P. M. S., Sgro, 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. Fermi detection of a luminous γ-ray pulsar in a globular cluster. United States. doi:10.1126/science.1207141.
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., Celik, O., 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., Johannesson, G., Johnson, A. S., Johnson, T. J., Johnston, S., Katagiri, H., Kataoka, J., Keith, M., Kerr, M., Knodlseder, 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., Raino, S., Ransom, S. M., Ray, P. S., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Romani, R. W., Roth, M., Sadrozinski, H. F. -. W., Parkinson, P. M. S., Sgro, 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., and Zimmer, S. Thu . "Fermi detection of a luminous γ-ray pulsar in a globular cluster". United States. doi:10.1126/science.1207141. https://www.osti.gov/servlets/purl/1356800.
@article{osti_1356800,
title = {Fermi detection of a luminous γ-ray pulsar in a globular cluster},
author = {Freire, P. C. C. and Abdo, A. A. and Ajello, M. and Allafort, A. and Ballet, J. and Barbiellini, G. and Bastieri, D. and Bechtol, K. and Bellazzini, R. and Blandford, R. D. and Bloom, E. D. and Bonamente, E. and Borgland, A. W. and Brigida, M. and Bruel, P. and Buehler, R. and Buson, S. and Caliandro, G. A. and Cameron, R. A. and Camilo, F. and Caraveo, P. A. and Cecchi, C. and Celik, O. and Charles, E. and Chekhtman, A. and Cheung, C. C. and Chiang, J. and Ciprini, S. and Claus, R. and Cognard, I. and Cohen-Tanugi, J. and Cominsky, L. R. and de Palma, F. and Dermer, C. D. and do Couto e Silva, E. and Dormody, M. and Drell, P. S. and Dubois, R. and Dumora, D. and Espinoza, C. M. and Favuzzi, C. and Fegan, S. J. and Ferrara, E. C. and Focke, W. B. and Fortin, P. and Fukazawa, Y. and Fusco, P. and Gargano, F. and Gasparrini, D. and Gehrels, N. and Germani, S. and Giglietto, N. and Giordano, F. and Giroletti, M. and Glanzman, T. and Godfrey, G. and Grenier, I. A. and Grondin, M. -. H. and Grove, J. E. and Guillemot, L. and Guiriec, S. and Hadasch, D. and Harding, A. K. and Johannesson, G. and Johnson, A. S. and Johnson, T. J. and Johnston, S. and Katagiri, H. and Kataoka, J. and Keith, M. and Kerr, M. and Knodlseder, J. and Kramer, M. and Kuss, M. and Lande, J. and Latronico, L. and Lee, S. -. H. and Lemoine-Goumard, M. and Longo, F. and Loparco, F. and Lovellette, M. N. and Lubrano, P. and Lyne, A. G. and Manchester, R. N. and Marelli, M. and Mazziotta, M. N. and McEnery, J. E. and Michelson, P. F. and Mizuno, T. and Moiseev, A. A. and Monte, C. and Monzani, M. E. and Morselli, A. and Moskalenko, I. V. and Murgia, S. and Nakamori, T. and Nolan, P. L. and Norris, J. P. and Nuss, E. and Ohsugi, T. and Okumura, A. and Omodei, N. and Orlando, E. and Ozaki, M. and Paneque, D. and Parent, D. and Pesce-Rollins, M. and Pierbattista, M. and Piron, F. and Porter, T. A. and Raino, S. and Ransom, S. M. and Ray, P. S. and Reimer, A. and Reimer, O. and Reposeur, T. and Ritz, S. and Romani, R. W. and Roth, M. and Sadrozinski, H. F. -. W. and Parkinson, P. M. S. and Sgro, C. and Shannon, R. and Siskind, E. J. and Smith, D. A. and Smith, P. D. and Spinelli, P. and Stappers, B. W. and Suson, D. J. and Takahashi, H. and Tanaka, T. and Tauris, T. M. and Thayer, J. B. and Theureau, G. and Thompson, D. J. and Thorsett, S. E. and Tibaldo, L. and Torres, D. F. and Tosti, G. and Troja, E. and Vandenbroucke, J. and Van Etten, A. and Vasileiou, V. and Venter, C. and Vianello, G. and Vilchez, N. and Vitale, V. and Waite, A. P. and Wang, P. and Wood, K. S. and Yang, Z. and Ziegler, M. and Zimmer, S.},
abstractNote = {Here, 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.},
doi = {10.1126/science.1207141},
journal = {Science},
issn = {0036-8075},
number = 6059,
volume = 334,
place = {United States},
year = {2011},
month = {11}
}

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