Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope: A case for co-located radio and γ-ray emission regions

A. A. Abdo, M. Ackermann, M. Ajello, A. Allafort, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, A. Bouvier, J. Bregeon, A. Brez, M. Brigida, P. BruelT. H. Burnett, S. Buson, G. A. Caliandro, R. A. Cameron, F. Camilo, P. A. Caraveo, S. Carrigan, J. M. Casandjian, C. Cecchi, Ö Çelik, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, I. Cognard, J. Cohen-Tanugi, J. Conrad, R. Corbet, M. E. Decesar, C. D. Dermer, G. Desvignes, A. De Angelis, F. De Palma, S. W. Digel, M. Dormody, E. Do Couto E Silva, P. S. Drell, R. Dubois, D. Dumora, C. Espinoza, C. Farnier, C. Favuzzi, S. J. Fegan, W. B. Focke, M. Frailis, P. C C Freire, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, G. Giavitto, N. Giglietto, F. Giordano, T. Glanzman, G. Godfrey, I. A. Grenier, M. H. Grondin, J. E. Grove, L. Guillemot, S. Guiriec, D. Hadasch, A. K. Harding, E. Hays, G. Hobbs, D. Horan, R. E. Hughes, G. Jóhannesson, A. S. Johnson, T. J. Johnson, W. N. Johnson, S. Johnston, T. Kamae, H. Katagiri, Jun Kataoka, N. Kawai, M. Kerr, J. Knödlseder, M. Kramer, M. Kuss, J. Lande, L. Latronico, M. Lemoine-Goumard, M. Llena Garde, F. Longo, F. Loparco, B. Lott, M. N. Lovellette, P. Lubrano, A. G. Lyne, A. Makeev, R. N. Manchester, M. Marelli, M. N. Mazziotta, W. McConville, J. E. McEnery, S. McGlynn, C. Meurer, P. F. Michelson, W. Mitthumsiri, T. Mizuno, A. A. Moiseev, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, P. L. Nolan, J. P. Norris, A. Noutsos, E. Nuss, T. Ohsugi, N. Omodei, E. Orlando, J. F. Ormes, M. Ozaki, D. Paneque, J. H. Panetta, D. Parent, V. Pelassa, M. Pepe, M. Pesce-Rollins, M. Pierbattista, F. Piron, T. A. Porter, S. Rainò, R. Rando, S. M. Ransom, M. Razzano, A. Reimer, O. Reimer, T. Reposeur, J. Ripken, S. Ritz, L. S. Rochester, A. Y. Rodriguez, R. W. Romani, M. Roth, F. Ryde, H. F W Sadrozinski, A. Sander, P. M Saz Parkinson, J. D. Scargle, C. Sgrò, E. J. Siskind, D. A. Smith, P. D. Smith, G. Spandre, P. Spinelli, B. W. Stappers, J. L. Starck, M. S. Strickman, D. J. Suson, H. Takahashi, T. Tanaka, J. B. Thayer, J. G. Thayer, G. Theureau, D. J. Thompson, S. E. Thorsett, L. Tibaldo, D. F. Torres, G. Tosti, A. Tramacere, T. L. Usher, A. Vanetten, V. Vasileiou, C. Venter, N. Vilchez, V. Vitale, A. P. Waite, E. Wallace, P. Wang, P. Weltevrede, B. L. Winer, K. S. Wood, T. Ylinen, M. Ziegler

    Research output: Contribution to journalArticle

    43 Citations (Scopus)

    Abstract

    Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant γ-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The γ-ray light curve shows two peaks separated by 0.274 ± 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The ≥0.1GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 ± 0.6 ± 0.1GeV and a photon index of 1.5 ± 0.2 ± 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation.

    Original languageEnglish
    Pages (from-to)957-963
    Number of pages7
    JournalAstrophysical Journal
    Volume712
    Issue number2
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    pulsars
    rays
    telescopes
    radio
    cut-off
    crab
    power law
    crabs
    light curve
    alkalies
    emitters
    alignment
    energy
    photons
    detection

    Keywords

    • Gamma rays: general
    • Pulsars: general
    • Pulsars: individual (PSR J0034?0534)

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

    Cite this

    Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope : A case for co-located radio and γ-ray emission regions. / Abdo, A. A.; Ackermann, M.; Ajello, M.; Allafort, A.; Baldini, L.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bouvier, A.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Burnett, T. H.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Camilo, F.; Caraveo, P. A.; Carrigan, S.; Casandjian, J. M.; Cecchi, C.; Çelik, Ö; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cognard, I.; Cohen-Tanugi, J.; Conrad, J.; Corbet, R.; Decesar, M. E.; Dermer, C. D.; Desvignes, G.; De Angelis, A.; De Palma, F.; Digel, S. W.; Dormody, M.; Do Couto E Silva, E.; Drell, P. S.; Dubois, R.; Dumora, D.; Espinoza, C.; Farnier, C.; Favuzzi, C.; Fegan, S. J.; Focke, W. B.; Frailis, M.; Freire, P. C C; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Giavitto, G.; Giglietto, N.; Giordano, F.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grondin, M. H.; Grove, J. E.; Guillemot, L.; Guiriec, S.; Hadasch, D.; Harding, A. K.; Hays, E.; Hobbs, G.; Horan, D.; Hughes, R. E.; Jóhannesson, G.; Johnson, A. S.; Johnson, T. J.; Johnson, W. N.; Johnston, S.; Kamae, T.; Katagiri, H.; Kataoka, Jun; Kawai, N.; Kerr, M.; Knödlseder, J.; Kramer, M.; Kuss, M.; Lande, J.; Latronico, L.; Lemoine-Goumard, M.; Garde, M. Llena; Longo, F.; Loparco, F.; Lott, B.; Lovellette, M. N.; Lubrano, P.; Lyne, A. G.; Makeev, A.; Manchester, R. N.; Marelli, M.; Mazziotta, M. N.; McConville, W.; McEnery, J. E.; McGlynn, S.; Meurer, C.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Moiseev, A. A.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Norris, J. P.; Noutsos, A.; Nuss, E.; Ohsugi, T.; Omodei, N.; Orlando, E.; Ormes, J. F.; Ozaki, M.; Paneque, D.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Pesce-Rollins, M.; Pierbattista, M.; Piron, F.; Porter, T. A.; Rainò, S.; Rando, R.; Ransom, S. M.; Razzano, M.; Reimer, A.; Reimer, O.; Reposeur, T.; Ripken, J.; Ritz, S.; Rochester, L. S.; Rodriguez, A. Y.; Romani, R. W.; Roth, M.; Ryde, F.; Sadrozinski, H. F W; Sander, A.; Parkinson, P. M Saz; Scargle, J. D.; Sgrò, C.; Siskind, E. J.; Smith, D. A.; Smith, P. D.; Spandre, G.; Spinelli, P.; Stappers, B. W.; Starck, J. L.; Strickman, M. S.; Suson, D. J.; Takahashi, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Theureau, G.; Thompson, D. J.; Thorsett, S. E.; Tibaldo, L.; Torres, D. F.; Tosti, G.; Tramacere, A.; Usher, T. L.; Vanetten, A.; Vasileiou, V.; Venter, C.; Vilchez, N.; Vitale, V.; Waite, A. P.; Wallace, E.; Wang, P.; Weltevrede, P.; Winer, B. L.; Wood, K. S.; Ylinen, T.; Ziegler, M.

    In: Astrophysical Journal, Vol. 712, No. 2, 2010, p. 957-963.

    Research output: Contribution to journalArticle

    Abdo, AA, Ackermann, M, Ajello, M, Allafort, A, Baldini, L, Ballet, J, Barbiellini, G, Bastieri, D, Bechtol, K, Bellazzini, R, Berenji, B, Blandford, RD, Bloom, ED, Bonamente, E, Borgland, AW, Bouvier, A, Bregeon, J, Brez, A, Brigida, M, Bruel, P, Burnett, TH, Buson, S, Caliandro, GA, Cameron, RA, Camilo, F, Caraveo, PA, Carrigan, S, Casandjian, JM, Cecchi, C, Çelik, Ö, Chekhtman, A, Cheung, CC, Chiang, J, Ciprini, S, Claus, R, Cognard, I, Cohen-Tanugi, J, Conrad, J, Corbet, R, Decesar, ME, Dermer, CD, Desvignes, G, De Angelis, A, De Palma, F, Digel, SW, Dormody, M, Do Couto E Silva, E, Drell, PS, Dubois, R, Dumora, D, Espinoza, C, Farnier, C, Favuzzi, C, Fegan, SJ, Focke, WB, Frailis, M, Freire, PCC, Fukazawa, Y, Funk, S, Fusco, P, Gargano, F, Gasparrini, D, Gehrels, N, Germani, S, Giavitto, G, Giglietto, N, Giordano, F, Glanzman, T, Godfrey, G, Grenier, IA, Grondin, MH, Grove, JE, Guillemot, L, Guiriec, S, Hadasch, D, Harding, AK, Hays, E, Hobbs, G, Horan, D, Hughes, RE, Jóhannesson, G, Johnson, AS, Johnson, TJ, Johnson, WN, Johnston, S, Kamae, T, Katagiri, H, Kataoka, J, Kawai, N, Kerr, M, Knödlseder, J, Kramer, M, Kuss, M, Lande, J, Latronico, L, Lemoine-Goumard, M, Garde, ML, Longo, F, Loparco, F, Lott, B, Lovellette, MN, Lubrano, P, Lyne, AG, Makeev, A, Manchester, RN, Marelli, M, Mazziotta, MN, McConville, W, McEnery, JE, McGlynn, S, Meurer, C, Michelson, PF, Mitthumsiri, W, Mizuno, T, Moiseev, AA, Monte, C, Monzani, ME, Morselli, A, Moskalenko, IV, Murgia, S, Nolan, PL, Norris, JP, Noutsos, A, Nuss, E, Ohsugi, T, Omodei, N, Orlando, E, Ormes, JF, Ozaki, M, Paneque, D, Panetta, JH, Parent, D, Pelassa, V, Pepe, M, Pesce-Rollins, M, Pierbattista, M, Piron, F, Porter, TA, Rainò, S, Rando, R, Ransom, SM, Razzano, M, Reimer, A, Reimer, O, Reposeur, T, Ripken, J, Ritz, S, Rochester, LS, Rodriguez, AY, Romani, RW, Roth, M, Ryde, F, Sadrozinski, HFW, Sander, A, Parkinson, PMS, Scargle, JD, Sgrò, C, Siskind, EJ, Smith, DA, Smith, PD, Spandre, G, Spinelli, P, Stappers, BW, Starck, JL, Strickman, MS, Suson, DJ, Takahashi, H, Tanaka, T, Thayer, JB, Thayer, JG, Theureau, G, Thompson, DJ, Thorsett, SE, Tibaldo, L, Torres, DF, Tosti, G, Tramacere, A, Usher, TL, Vanetten, A, Vasileiou, V, Venter, C, Vilchez, N, Vitale, V, Waite, AP, Wallace, E, Wang, P, Weltevrede, P, Winer, BL, Wood, KS, Ylinen, T & Ziegler, M 2010, 'Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope: A case for co-located radio and γ-ray emission regions', Astrophysical Journal, vol. 712, no. 2, pp. 957-963. https://doi.org/10.1088/0004-637X/712/2/957
    Abdo, A. A. ; Ackermann, M. ; Ajello, M. ; Allafort, A. ; Baldini, L. ; Ballet, J. ; Barbiellini, G. ; Bastieri, D. ; Bechtol, K. ; Bellazzini, R. ; Berenji, B. ; Blandford, R. D. ; Bloom, E. D. ; Bonamente, E. ; Borgland, A. W. ; Bouvier, A. ; Bregeon, J. ; Brez, A. ; Brigida, M. ; Bruel, P. ; Burnett, T. H. ; Buson, S. ; Caliandro, G. A. ; Cameron, R. A. ; Camilo, F. ; Caraveo, P. A. ; Carrigan, S. ; Casandjian, J. M. ; Cecchi, C. ; Çelik, Ö ; Chekhtman, A. ; Cheung, C. C. ; Chiang, J. ; Ciprini, S. ; Claus, R. ; Cognard, I. ; Cohen-Tanugi, J. ; Conrad, J. ; Corbet, R. ; Decesar, M. E. ; Dermer, C. D. ; Desvignes, G. ; De Angelis, A. ; De Palma, F. ; Digel, S. W. ; Dormody, M. ; Do Couto E Silva, E. ; Drell, P. S. ; Dubois, R. ; Dumora, D. ; Espinoza, C. ; Farnier, C. ; Favuzzi, C. ; Fegan, S. J. ; Focke, W. B. ; Frailis, M. ; Freire, P. C C ; Fukazawa, Y. ; Funk, S. ; Fusco, P. ; Gargano, F. ; Gasparrini, D. ; Gehrels, N. ; Germani, S. ; Giavitto, G. ; Giglietto, N. ; Giordano, F. ; Glanzman, T. ; Godfrey, G. ; Grenier, I. A. ; Grondin, M. H. ; Grove, J. E. ; Guillemot, L. ; Guiriec, S. ; Hadasch, D. ; Harding, A. K. ; Hays, E. ; Hobbs, G. ; Horan, D. ; Hughes, R. E. ; Jóhannesson, G. ; Johnson, A. S. ; Johnson, T. J. ; Johnson, W. N. ; Johnston, S. ; Kamae, T. ; Katagiri, H. ; Kataoka, Jun ; Kawai, N. ; Kerr, M. ; Knödlseder, J. ; Kramer, M. ; Kuss, M. ; Lande, J. ; Latronico, L. ; Lemoine-Goumard, M. ; Garde, M. Llena ; Longo, F. ; Loparco, F. ; Lott, B. ; Lovellette, M. N. ; Lubrano, P. ; Lyne, A. G. ; Makeev, A. ; Manchester, R. N. ; Marelli, M. ; Mazziotta, M. N. ; McConville, W. ; McEnery, J. E. ; McGlynn, S. ; Meurer, C. ; Michelson, P. F. ; Mitthumsiri, W. ; Mizuno, T. ; Moiseev, A. A. ; Monte, C. ; Monzani, M. E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Nolan, P. L. ; Norris, J. P. ; Noutsos, A. ; Nuss, E. ; Ohsugi, T. ; Omodei, N. ; Orlando, E. ; Ormes, J. F. ; Ozaki, M. ; Paneque, D. ; Panetta, J. H. ; Parent, D. ; Pelassa, V. ; Pepe, M. ; Pesce-Rollins, M. ; Pierbattista, M. ; Piron, F. ; Porter, T. A. ; Rainò, S. ; Rando, R. ; Ransom, S. M. ; Razzano, M. ; Reimer, A. ; Reimer, O. ; Reposeur, T. ; Ripken, J. ; Ritz, S. ; Rochester, L. S. ; Rodriguez, A. Y. ; Romani, R. W. ; Roth, M. ; Ryde, F. ; Sadrozinski, H. F W ; Sander, A. ; Parkinson, P. M Saz ; Scargle, J. D. ; Sgrò, C. ; Siskind, E. J. ; Smith, D. A. ; Smith, P. D. ; Spandre, G. ; Spinelli, P. ; Stappers, B. W. ; Starck, J. L. ; Strickman, M. S. ; Suson, D. J. ; Takahashi, H. ; Tanaka, T. ; Thayer, J. B. ; Thayer, J. G. ; Theureau, G. ; Thompson, D. J. ; Thorsett, S. E. ; Tibaldo, L. ; Torres, D. F. ; Tosti, G. ; Tramacere, A. ; Usher, T. L. ; Vanetten, A. ; Vasileiou, V. ; Venter, C. ; Vilchez, N. ; Vitale, V. ; Waite, A. P. ; Wallace, E. ; Wang, P. ; Weltevrede, P. ; Winer, B. L. ; Wood, K. S. ; Ylinen, T. ; Ziegler, M. / Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope : A case for co-located radio and γ-ray emission regions. In: Astrophysical Journal. 2010 ; Vol. 712, No. 2. pp. 957-963.
    @article{d4b4e8fb38a4417682c204ebd3f54df5,
    title = "Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope: A case for co-located radio and γ-ray emission regions",
    abstract = "Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant γ-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The γ-ray light curve shows two peaks separated by 0.274 ± 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The ≥0.1GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 ± 0.6 ± 0.1GeV and a photon index of 1.5 ± 0.2 ± 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation.",
    keywords = "Gamma rays: general, Pulsars: general, Pulsars: individual (PSR J0034?0534)",
    author = "Abdo, {A. A.} and M. Ackermann and M. Ajello and A. Allafort and L. Baldini and J. Ballet and G. Barbiellini and D. Bastieri and K. Bechtol and R. Bellazzini and B. Berenji and Blandford, {R. D.} and Bloom, {E. D.} and E. Bonamente and Borgland, {A. W.} and A. Bouvier and J. Bregeon and A. Brez and M. Brigida and P. Bruel and Burnett, {T. H.} and S. Buson and Caliandro, {G. A.} and Cameron, {R. A.} and F. Camilo and Caraveo, {P. A.} and S. Carrigan and Casandjian, {J. M.} and C. Cecchi and {\"O} {\cC}elik and A. Chekhtman and Cheung, {C. C.} and J. Chiang and S. Ciprini and R. Claus and I. Cognard and J. Cohen-Tanugi and J. Conrad and R. Corbet and Decesar, {M. E.} and Dermer, {C. D.} and G. Desvignes and {De Angelis}, A. and {De Palma}, F. and Digel, {S. W.} and M. Dormody and {Do Couto E Silva}, E. and Drell, {P. S.} and R. Dubois and D. Dumora and C. Espinoza and C. Farnier and C. Favuzzi and Fegan, {S. J.} and Focke, {W. B.} and M. Frailis and Freire, {P. C C} and Y. Fukazawa and S. Funk and P. Fusco and F. Gargano and D. Gasparrini and N. Gehrels and S. Germani and G. Giavitto and N. Giglietto and F. Giordano and T. Glanzman and G. Godfrey and Grenier, {I. A.} and Grondin, {M. H.} and Grove, {J. E.} and L. Guillemot and S. Guiriec and D. Hadasch and Harding, {A. K.} and E. Hays and G. Hobbs and D. Horan and Hughes, {R. E.} and G. J{\'o}hannesson and Johnson, {A. S.} and Johnson, {T. J.} and Johnson, {W. N.} and S. Johnston and T. Kamae and H. Katagiri and Jun Kataoka and N. Kawai and M. Kerr and J. Kn{\"o}dlseder and M. Kramer and M. Kuss and J. Lande and L. Latronico and M. Lemoine-Goumard and Garde, {M. Llena} and F. Longo and F. Loparco and B. Lott and Lovellette, {M. N.} and P. Lubrano and Lyne, {A. G.} and A. Makeev and Manchester, {R. N.} and M. Marelli and Mazziotta, {M. N.} and W. McConville and McEnery, {J. E.} and S. McGlynn and C. Meurer and Michelson, {P. F.} and W. Mitthumsiri and T. Mizuno and Moiseev, {A. A.} and C. Monte and Monzani, {M. E.} and A. Morselli and Moskalenko, {I. V.} and S. Murgia and Nolan, {P. L.} and Norris, {J. P.} and A. Noutsos and E. Nuss and T. Ohsugi and N. Omodei and E. Orlando and Ormes, {J. F.} and M. Ozaki and D. Paneque and Panetta, {J. H.} and D. Parent and V. Pelassa and M. Pepe and M. Pesce-Rollins and M. Pierbattista and F. Piron and Porter, {T. A.} and S. Rain{\`o} and R. Rando and Ransom, {S. M.} and M. Razzano and A. Reimer and O. Reimer and T. Reposeur and J. Ripken and S. Ritz and Rochester, {L. S.} and Rodriguez, {A. Y.} and Romani, {R. W.} and M. Roth and F. Ryde and Sadrozinski, {H. F W} and A. Sander and Parkinson, {P. M Saz} and Scargle, {J. D.} and C. Sgr{\`o} and Siskind, {E. J.} and Smith, {D. A.} and Smith, {P. D.} and G. Spandre and P. Spinelli and Stappers, {B. W.} and Starck, {J. L.} and Strickman, {M. S.} and Suson, {D. J.} and H. Takahashi and T. Tanaka and Thayer, {J. B.} and Thayer, {J. G.} and G. Theureau and Thompson, {D. J.} and Thorsett, {S. E.} and L. Tibaldo and Torres, {D. F.} and G. Tosti and A. Tramacere and Usher, {T. L.} and A. Vanetten and V. Vasileiou and C. Venter and N. Vilchez and V. Vitale and Waite, {A. P.} and E. Wallace and P. Wang and P. Weltevrede and Winer, {B. L.} and Wood, {K. S.} and T. Ylinen and M. Ziegler",
    year = "2010",
    doi = "10.1088/0004-637X/712/2/957",
    language = "English",
    volume = "712",
    pages = "957--963",
    journal = "Astrophysical Journal",
    issn = "0004-637X",
    publisher = "IOP Publishing Ltd.",
    number = "2",

    }

    TY - JOUR

    T1 - Discovery of pulsed γ-rays from PSR J0034-0534 with the fermi large area telescope

    T2 - A case for co-located radio and γ-ray emission regions

    AU - Abdo, A. A.

    AU - Ackermann, M.

    AU - Ajello, M.

    AU - Allafort, A.

    AU - Baldini, L.

    AU - Ballet, J.

    AU - Barbiellini, G.

    AU - Bastieri, D.

    AU - Bechtol, K.

    AU - Bellazzini, R.

    AU - Berenji, B.

    AU - Blandford, R. D.

    AU - Bloom, E. D.

    AU - Bonamente, E.

    AU - Borgland, A. W.

    AU - Bouvier, A.

    AU - Bregeon, J.

    AU - Brez, A.

    AU - Brigida, M.

    AU - Bruel, P.

    AU - Burnett, T. H.

    AU - Buson, S.

    AU - Caliandro, G. A.

    AU - Cameron, R. A.

    AU - Camilo, F.

    AU - Caraveo, P. A.

    AU - Carrigan, S.

    AU - Casandjian, J. M.

    AU - Cecchi, C.

    AU - Çelik, Ö

    AU - Chekhtman, A.

    AU - Cheung, C. C.

    AU - Chiang, J.

    AU - Ciprini, S.

    AU - Claus, R.

    AU - Cognard, I.

    AU - Cohen-Tanugi, J.

    AU - Conrad, J.

    AU - Corbet, R.

    AU - Decesar, M. E.

    AU - Dermer, C. D.

    AU - Desvignes, G.

    AU - De Angelis, A.

    AU - De Palma, F.

    AU - Digel, S. W.

    AU - Dormody, M.

    AU - Do Couto E Silva, E.

    AU - Drell, P. S.

    AU - Dubois, R.

    AU - Dumora, D.

    AU - Espinoza, C.

    AU - Farnier, C.

    AU - Favuzzi, C.

    AU - Fegan, S. J.

    AU - Focke, W. B.

    AU - Frailis, M.

    AU - Freire, P. C C

    AU - Fukazawa, Y.

    AU - Funk, S.

    AU - Fusco, P.

    AU - Gargano, F.

    AU - Gasparrini, D.

    AU - Gehrels, N.

    AU - Germani, S.

    AU - Giavitto, G.

    AU - Giglietto, N.

    AU - Giordano, F.

    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 - Hays, E.

    AU - Hobbs, G.

    AU - Horan, D.

    AU - Hughes, R. E.

    AU - Jóhannesson, G.

    AU - Johnson, A. S.

    AU - Johnson, T. J.

    AU - Johnson, W. N.

    AU - Johnston, S.

    AU - Kamae, T.

    AU - Katagiri, H.

    AU - Kataoka, Jun

    AU - Kawai, N.

    AU - Kerr, M.

    AU - Knödlseder, J.

    AU - Kramer, M.

    AU - Kuss, M.

    AU - Lande, J.

    AU - Latronico, L.

    AU - Lemoine-Goumard, M.

    AU - Garde, M. Llena

    AU - Longo, F.

    AU - Loparco, F.

    AU - Lott, B.

    AU - Lovellette, M. N.

    AU - Lubrano, P.

    AU - Lyne, A. G.

    AU - Makeev, A.

    AU - Manchester, R. N.

    AU - Marelli, M.

    AU - Mazziotta, M. N.

    AU - McConville, W.

    AU - McEnery, J. E.

    AU - McGlynn, S.

    AU - Meurer, C.

    AU - Michelson, P. F.

    AU - Mitthumsiri, W.

    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 - Nolan, P. L.

    AU - Norris, J. P.

    AU - Noutsos, A.

    AU - Nuss, E.

    AU - Ohsugi, T.

    AU - Omodei, N.

    AU - Orlando, E.

    AU - Ormes, J. F.

    AU - Ozaki, M.

    AU - Paneque, D.

    AU - Panetta, J. H.

    AU - Parent, D.

    AU - Pelassa, V.

    AU - Pepe, M.

    AU - Pesce-Rollins, M.

    AU - Pierbattista, M.

    AU - Piron, F.

    AU - Porter, T. A.

    AU - Rainò, S.

    AU - Rando, R.

    AU - Ransom, S. M.

    AU - Razzano, M.

    AU - Reimer, A.

    AU - Reimer, O.

    AU - Reposeur, T.

    AU - Ripken, J.

    AU - Ritz, S.

    AU - Rochester, L. S.

    AU - Rodriguez, A. Y.

    AU - Romani, R. W.

    AU - Roth, M.

    AU - Ryde, F.

    AU - Sadrozinski, H. F W

    AU - Sander, A.

    AU - Parkinson, P. M Saz

    AU - Scargle, J. D.

    AU - Sgrò, C.

    AU - Siskind, E. J.

    AU - Smith, D. A.

    AU - Smith, P. D.

    AU - Spandre, G.

    AU - Spinelli, P.

    AU - Stappers, B. W.

    AU - Starck, J. L.

    AU - Strickman, M. S.

    AU - Suson, D. J.

    AU - Takahashi, H.

    AU - Tanaka, T.

    AU - Thayer, J. B.

    AU - Thayer, J. G.

    AU - Theureau, G.

    AU - Thompson, D. J.

    AU - Thorsett, S. E.

    AU - Tibaldo, L.

    AU - Torres, D. F.

    AU - Tosti, G.

    AU - Tramacere, A.

    AU - Usher, T. L.

    AU - Vanetten, A.

    AU - Vasileiou, V.

    AU - Venter, C.

    AU - Vilchez, N.

    AU - Vitale, V.

    AU - Waite, A. P.

    AU - Wallace, E.

    AU - Wang, P.

    AU - Weltevrede, P.

    AU - Winer, B. L.

    AU - Wood, K. S.

    AU - Ylinen, T.

    AU - Ziegler, M.

    PY - 2010

    Y1 - 2010

    N2 - Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant γ-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The γ-ray light curve shows two peaks separated by 0.274 ± 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The ≥0.1GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 ± 0.6 ± 0.1GeV and a photon index of 1.5 ± 0.2 ± 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation.

    AB - Millisecond pulsars (MSPs) have been firmly established as a class of γ-ray emitters via the detection of pulsations above 0.1GeV from eight MSPs by the Fermi Large Area Telescope (LAT). Using 13 months of LAT data, significant γ-ray pulsations at the radio period have been detected from the MSP PSR J0034-0534, making it the ninth clear MSP detection by the LAT. The γ-ray light curve shows two peaks separated by 0.274 ± 0.015 in phase which are very nearly aligned with the radio peaks, a phenomenon seen only in the Crab pulsar until now. The ≥0.1GeV spectrum of this pulsar is well fit by an exponentially cutoff power law with a cutoff energy of 1.8 ± 0.6 ± 0.1GeV and a photon index of 1.5 ± 0.2 ± 0.1, first errors are statistical and second are systematic. The near-alignment of the radio and γ-ray peaks strongly suggests that the radio and γ-ray emission regions are co-located and both are the result of caustic formation.

    KW - Gamma rays: general

    KW - Pulsars: general

    KW - Pulsars: individual (PSR J0034?0534)

    UR - http://www.scopus.com/inward/record.url?scp=77950202588&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=77950202588&partnerID=8YFLogxK

    U2 - 10.1088/0004-637X/712/2/957

    DO - 10.1088/0004-637X/712/2/957

    M3 - Article

    AN - SCOPUS:77950202588

    VL - 712

    SP - 957

    EP - 963

    JO - Astrophysical Journal

    JF - Astrophysical Journal

    SN - 0004-637X

    IS - 2

    ER -