Periodic emission from the gamma-ray binary 1FGL J1018.6-5856

M. Ackermann, M. Ajello, J. Ballet, G. Barbiellini, D. Bastieri, A. Belfiore, R. Bellazzini, B. Berenji, R. D. Blandford, E. D. Bloom, E. Bonamente, A. W. Borgland, J. Bregeon, M. Brigida, P. Bruel, R. Buehler, S. Buson, G. A. Caliandro, R. A. Cameron, P. A. Caraveo & 135 others E. Cavazzuti, C. Cecchi, Ö Çelik, E. Charles, S. Chaty, A. Chekhtman, C. C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, S. Corbel, R. H D Corbet, S. Cutini, A. De Luca, P. R. Den Hartog, F. De Palma, C. D. Dermer, S. W. Digel, E. Do Couto E Silva, D. Donato, P. S. Drell, A. Drlica-Wagner, R. Dubois, G. Dubus, C. Favuzzi, S. J. Fegan, E. C. Ferrara, W. B. Focke, P. Fortin, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, T. Glanzman, G. Godfrey, I. A. Grenier, J. E. Grove, S. Guiriec, D. Hadasch, Y. Hanabata, A. K. Harding, M. Hayashida, E. Hays, A. B. Hill, R. E. Hughes, G. Jóhannesson, A. S. Johnson, T. J. Johnson, T. Kamae, H. Katagiri, Jun Kataoka, M. Kerr, J. Knödlseder, M. Kuss, J. Lande, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, M. N. Mazziotta, J. E. McEnery, P. F. Michelson, W. Mitthumsiri, T. Mizuno, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, T. Nakamori, M. Naumann-Godo, J. P. Norris, E. Nuss, M. Ohno, T. Ohsugi, A. Okumura, N. Omodei, E. Orlando, M. Ozaki, D. Paneque, D. Parent, M. Pesce-Rollins, M. Pierbattista, F. Piron, G. Pivato, T. A. Porter, S. Rainò, R. Rando, M. Razzano, A. Reimer, O. Reimer, S. Ritz, R. W. Romani, M. Roth, P. M. Saz Parkinson, C. Sgrò, E. J. Siskind, G. Spandre, P. Spinelli, D. J. Suson, H. Takahashi, T. Tanaka, J. G. Thayer, J. B. Thayer, D. J. Thompson, L. Tibaldo, M. Tinivella, D. F. Torres, G. Tosti, E. Troja, Y. Uchiyama, T. L. Usher, J. Vandenbroucke, G. Vianello, V. Vitale, A. P. Waite, B. L. Winer, K. S. Wood, M. Wood, Z. Yang, S. Zimmer, M. J. Coe, F. Di Mille, P. G. Edwards, M. D. Filipović, J. L. Payne, J. Stevens, M. A P Torres

    Research output: Contribution to journalArticle

    64 Citations (Scopus)

    Abstract

    Gamma-ray binaries are stellar systems containing a neutron star or black hole, with gamma-ray emission produced by an interaction between the components. These systems are rare, even though binary evolution models predict dozens in our Galaxy. A search for gamma-ray binaries with the Fermi Large Area Telescope (LAT) shows that 1FGL J1018.6-5856 exhibits intensity and spectral modulation with a 16.6-day period. We identified a variable x-ray counterpart, which shows a sharp maximum coinciding with maximum gamma-ray emission, as well as an O6V((f)) star optical counterpart and a radio counterpart that is also apparently modulated on the orbital period. 1FGL J1018.6-5856 is thus a gamma-ray binary, and its detection suggests the presence of other fainter binaries in the Galaxy.

    Original languageEnglish
    Pages (from-to)189-193
    Number of pages5
    JournalScience
    Volume335
    Issue number6065
    DOIs
    Publication statusPublished - 2012 Jan 13

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    Gamma Rays
    Galaxies
    Telescopes
    Neutrons
    Radio
    X-Rays

    ASJC Scopus subject areas

    • General

    Cite this

    Ackermann, M., Ajello, M., Ballet, J., Barbiellini, G., Bastieri, D., Belfiore, A., ... Torres, M. A. P. (2012). Periodic emission from the gamma-ray binary 1FGL J1018.6-5856. Science, 335(6065), 189-193. https://doi.org/10.1126/science.1213974

    Periodic emission from the gamma-ray binary 1FGL J1018.6-5856. / Ackermann, M.; Ajello, M.; Ballet, J.; Barbiellini, G.; Bastieri, D.; Belfiore, A.; Bellazzini, R.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bonamente, E.; Borgland, A. W.; Bregeon, J.; Brigida, M.; Bruel, P.; Buehler, R.; Buson, S.; Caliandro, G. A.; Cameron, R. A.; Caraveo, P. A.; Cavazzuti, E.; Cecchi, C.; Çelik, Ö; Charles, E.; Chaty, S.; Chekhtman, A.; Cheung, C. C.; Chiang, J.; Ciprini, S.; Claus, R.; Cohen-Tanugi, J.; Corbel, S.; Corbet, R. H D; Cutini, S.; De Luca, A.; Den Hartog, P. R.; De Palma, F.; Dermer, C. D.; Digel, S. W.; Do Couto E Silva, E.; Donato, D.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Dubus, G.; Favuzzi, C.; Fegan, S. J.; Ferrara, E. C.; Focke, W. B.; Fortin, P.; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Gasparrini, D.; Gehrels, N.; Germani, S.; Giglietto, N.; Giordano, F.; Giroletti, M.; Glanzman, T.; Godfrey, G.; Grenier, I. A.; Grove, J. E.; Guiriec, S.; Hadasch, D.; Hanabata, Y.; Harding, A. K.; Hayashida, M.; Hays, E.; Hill, A. B.; Hughes, R. E.; Jóhannesson, G.; Johnson, A. S.; Johnson, T. J.; Kamae, T.; Katagiri, H.; Kataoka, Jun; Kerr, M.; Knödlseder, J.; Kuss, M.; Lande, J.; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Mazziotta, M. N.; McEnery, J. E.; Michelson, P. F.; Mitthumsiri, W.; Mizuno, T.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Nakamori, T.; Naumann-Godo, M.; Norris, J. P.; Nuss, E.; Ohno, M.; Ohsugi, T.; Okumura, A.; Omodei, N.; Orlando, E.; Ozaki, M.; Paneque, D.; Parent, D.; Pesce-Rollins, M.; Pierbattista, M.; Piron, F.; Pivato, G.; Porter, T. A.; Rainò, S.; Rando, R.; Razzano, M.; Reimer, A.; Reimer, O.; Ritz, S.; Romani, R. W.; Roth, M.; Saz Parkinson, P. M.; Sgrò, C.; Siskind, E. J.; Spandre, G.; Spinelli, P.; Suson, D. J.; Takahashi, H.; Tanaka, T.; Thayer, J. G.; Thayer, J. B.; Thompson, D. J.; Tibaldo, L.; Tinivella, M.; Torres, D. F.; Tosti, G.; Troja, E.; Uchiyama, Y.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Vitale, V.; Waite, A. P.; Winer, B. L.; Wood, K. S.; Wood, M.; Yang, Z.; Zimmer, S.; Coe, M. J.; Di Mille, F.; Edwards, P. G.; Filipović, M. D.; Payne, J. L.; Stevens, J.; Torres, M. A P.

    In: Science, Vol. 335, No. 6065, 13.01.2012, p. 189-193.

    Research output: Contribution to journalArticle

    Ackermann, M, Ajello, M, Ballet, J, Barbiellini, G, Bastieri, D, Belfiore, A, Bellazzini, R, Berenji, B, Blandford, RD, Bloom, ED, Bonamente, E, Borgland, AW, Bregeon, J, Brigida, M, Bruel, P, Buehler, R, Buson, S, Caliandro, GA, Cameron, RA, Caraveo, PA, Cavazzuti, E, Cecchi, C, Çelik, Ö, Charles, E, Chaty, S, Chekhtman, A, Cheung, CC, Chiang, J, Ciprini, S, Claus, R, Cohen-Tanugi, J, Corbel, S, Corbet, RHD, Cutini, S, De Luca, A, Den Hartog, PR, De Palma, F, Dermer, CD, Digel, SW, Do Couto E Silva, E, Donato, D, Drell, PS, Drlica-Wagner, A, Dubois, R, Dubus, G, Favuzzi, C, Fegan, SJ, Ferrara, EC, Focke, WB, Fortin, P, Fukazawa, Y, Funk, S, Fusco, P, Gargano, F, Gasparrini, D, Gehrels, N, Germani, S, Giglietto, N, Giordano, F, Giroletti, M, Glanzman, T, Godfrey, G, Grenier, IA, Grove, JE, Guiriec, S, Hadasch, D, Hanabata, Y, Harding, AK, Hayashida, M, Hays, E, Hill, AB, Hughes, RE, Jóhannesson, G, Johnson, AS, Johnson, TJ, Kamae, T, Katagiri, H, Kataoka, J, Kerr, M, Knödlseder, J, Kuss, M, Lande, J, Longo, F, Loparco, F, Lovellette, MN, Lubrano, P, Mazziotta, MN, McEnery, JE, Michelson, PF, Mitthumsiri, W, Mizuno, T, Monte, C, Monzani, ME, Morselli, A, Moskalenko, IV, Murgia, S, Nakamori, T, Naumann-Godo, M, Norris, JP, Nuss, E, Ohno, M, Ohsugi, T, Okumura, A, Omodei, N, Orlando, E, Ozaki, M, Paneque, D, Parent, D, Pesce-Rollins, M, Pierbattista, M, Piron, F, Pivato, G, Porter, TA, Rainò, S, Rando, R, Razzano, M, Reimer, A, Reimer, O, Ritz, S, Romani, RW, Roth, M, Saz Parkinson, PM, Sgrò, C, Siskind, EJ, Spandre, G, Spinelli, P, Suson, DJ, Takahashi, H, Tanaka, T, Thayer, JG, Thayer, JB, Thompson, DJ, Tibaldo, L, Tinivella, M, Torres, DF, Tosti, G, Troja, E, Uchiyama, Y, Usher, TL, Vandenbroucke, J, Vianello, G, Vitale, V, Waite, AP, Winer, BL, Wood, KS, Wood, M, Yang, Z, Zimmer, S, Coe, MJ, Di Mille, F, Edwards, PG, Filipović, MD, Payne, JL, Stevens, J & Torres, MAP 2012, 'Periodic emission from the gamma-ray binary 1FGL J1018.6-5856', Science, vol. 335, no. 6065, pp. 189-193. https://doi.org/10.1126/science.1213974
    Ackermann M, Ajello M, Ballet J, Barbiellini G, Bastieri D, Belfiore A et al. Periodic emission from the gamma-ray binary 1FGL J1018.6-5856. Science. 2012 Jan 13;335(6065):189-193. https://doi.org/10.1126/science.1213974
    Ackermann, M. ; Ajello, M. ; Ballet, J. ; Barbiellini, G. ; Bastieri, D. ; Belfiore, A. ; Bellazzini, R. ; Berenji, B. ; Blandford, R. D. ; Bloom, E. D. ; Bonamente, E. ; Borgland, A. W. ; Bregeon, J. ; Brigida, M. ; Bruel, P. ; Buehler, R. ; Buson, S. ; Caliandro, G. A. ; Cameron, R. A. ; Caraveo, P. A. ; Cavazzuti, E. ; Cecchi, C. ; Çelik, Ö ; Charles, E. ; Chaty, S. ; Chekhtman, A. ; Cheung, C. C. ; Chiang, J. ; Ciprini, S. ; Claus, R. ; Cohen-Tanugi, J. ; Corbel, S. ; Corbet, R. H D ; Cutini, S. ; De Luca, A. ; Den Hartog, P. R. ; De Palma, F. ; Dermer, C. D. ; Digel, S. W. ; Do Couto E Silva, E. ; Donato, D. ; Drell, P. S. ; Drlica-Wagner, A. ; Dubois, R. ; Dubus, G. ; Favuzzi, C. ; Fegan, S. J. ; Ferrara, E. C. ; Focke, W. B. ; Fortin, P. ; Fukazawa, Y. ; Funk, S. ; Fusco, P. ; Gargano, F. ; Gasparrini, D. ; Gehrels, N. ; Germani, S. ; Giglietto, N. ; Giordano, F. ; Giroletti, M. ; Glanzman, T. ; Godfrey, G. ; Grenier, I. A. ; Grove, J. E. ; Guiriec, S. ; Hadasch, D. ; Hanabata, Y. ; Harding, A. K. ; Hayashida, M. ; Hays, E. ; Hill, A. B. ; Hughes, R. E. ; Jóhannesson, G. ; Johnson, A. S. ; Johnson, T. J. ; Kamae, T. ; Katagiri, H. ; Kataoka, Jun ; Kerr, M. ; Knödlseder, J. ; Kuss, M. ; Lande, J. ; Longo, F. ; Loparco, F. ; Lovellette, M. N. ; Lubrano, P. ; Mazziotta, M. N. ; McEnery, J. E. ; Michelson, P. F. ; Mitthumsiri, W. ; Mizuno, T. ; Monte, C. ; Monzani, M. E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Nakamori, T. ; Naumann-Godo, M. ; Norris, J. P. ; Nuss, E. ; Ohno, M. ; Ohsugi, T. ; Okumura, A. ; Omodei, N. ; Orlando, E. ; Ozaki, M. ; Paneque, D. ; Parent, D. ; Pesce-Rollins, M. ; Pierbattista, M. ; Piron, F. ; Pivato, G. ; Porter, T. A. ; Rainò, S. ; Rando, R. ; Razzano, M. ; Reimer, A. ; Reimer, O. ; Ritz, S. ; Romani, R. W. ; Roth, M. ; Saz Parkinson, P. M. ; Sgrò, C. ; Siskind, E. J. ; Spandre, G. ; Spinelli, P. ; Suson, D. J. ; Takahashi, H. ; Tanaka, T. ; Thayer, J. G. ; Thayer, J. B. ; Thompson, D. J. ; Tibaldo, L. ; Tinivella, M. ; Torres, D. F. ; Tosti, G. ; Troja, E. ; Uchiyama, Y. ; Usher, T. L. ; Vandenbroucke, J. ; Vianello, G. ; Vitale, V. ; Waite, A. P. ; Winer, B. L. ; Wood, K. S. ; Wood, M. ; Yang, Z. ; Zimmer, S. ; Coe, M. J. ; Di Mille, F. ; Edwards, P. G. ; Filipović, M. D. ; Payne, J. L. ; Stevens, J. ; Torres, M. A P. / Periodic emission from the gamma-ray binary 1FGL J1018.6-5856. In: Science. 2012 ; Vol. 335, No. 6065. pp. 189-193.
    @article{379c854200cf4ec7a0ec643206373d0f,
    title = "Periodic emission from the gamma-ray binary 1FGL J1018.6-5856",
    abstract = "Gamma-ray binaries are stellar systems containing a neutron star or black hole, with gamma-ray emission produced by an interaction between the components. These systems are rare, even though binary evolution models predict dozens in our Galaxy. A search for gamma-ray binaries with the Fermi Large Area Telescope (LAT) shows that 1FGL J1018.6-5856 exhibits intensity and spectral modulation with a 16.6-day period. We identified a variable x-ray counterpart, which shows a sharp maximum coinciding with maximum gamma-ray emission, as well as an O6V((f)) star optical counterpart and a radio counterpart that is also apparently modulated on the orbital period. 1FGL J1018.6-5856 is thus a gamma-ray binary, and its detection suggests the presence of other fainter binaries in the Galaxy.",
    author = "M. Ackermann and M. Ajello and J. Ballet and G. Barbiellini and D. Bastieri and A. Belfiore and R. Bellazzini and B. Berenji and Blandford, {R. D.} and Bloom, {E. D.} and E. Bonamente and Borgland, {A. W.} and J. Bregeon and M. Brigida and P. Bruel and R. Buehler and S. Buson and Caliandro, {G. A.} and Cameron, {R. A.} and Caraveo, {P. A.} and E. Cavazzuti and C. Cecchi and {\"O} {\cC}elik and E. Charles and S. Chaty and A. Chekhtman and Cheung, {C. C.} and J. Chiang and S. Ciprini and R. Claus and J. Cohen-Tanugi and S. Corbel and Corbet, {R. H D} and S. Cutini and {De Luca}, A. and {Den Hartog}, {P. R.} and {De Palma}, F. and Dermer, {C. D.} and Digel, {S. W.} and {Do Couto E Silva}, E. and D. Donato and Drell, {P. S.} and A. Drlica-Wagner and R. Dubois and G. Dubus and C. Favuzzi and Fegan, {S. J.} and Ferrara, {E. C.} and Focke, {W. B.} and P. Fortin and Y. Fukazawa and S. Funk and P. Fusco and F. Gargano and D. Gasparrini and N. Gehrels and S. Germani and N. Giglietto and F. Giordano and M. Giroletti and T. Glanzman and G. Godfrey and Grenier, {I. A.} and Grove, {J. E.} and S. Guiriec and D. Hadasch and Y. Hanabata and Harding, {A. K.} and M. Hayashida and E. Hays and Hill, {A. B.} and Hughes, {R. E.} and G. J{\'o}hannesson and Johnson, {A. S.} and Johnson, {T. J.} and T. Kamae and H. Katagiri and Jun Kataoka and M. Kerr and J. Kn{\"o}dlseder and M. Kuss and J. Lande and F. Longo and F. Loparco and Lovellette, {M. N.} and P. Lubrano and Mazziotta, {M. N.} and McEnery, {J. E.} and Michelson, {P. F.} and W. Mitthumsiri and T. Mizuno and C. Monte and Monzani, {M. E.} and A. Morselli and Moskalenko, {I. V.} and S. Murgia and T. Nakamori and M. Naumann-Godo and Norris, {J. P.} and E. Nuss and M. Ohno and T. Ohsugi and A. Okumura and N. Omodei and E. Orlando and M. Ozaki and D. Paneque and D. Parent and M. Pesce-Rollins and M. Pierbattista and F. Piron and G. Pivato and Porter, {T. A.} and S. Rain{\`o} and R. Rando and M. Razzano and A. Reimer and O. Reimer and S. Ritz and Romani, {R. W.} and M. Roth and {Saz Parkinson}, {P. M.} and C. Sgr{\`o} and Siskind, {E. J.} and G. Spandre and P. Spinelli and Suson, {D. J.} and H. Takahashi and T. Tanaka and Thayer, {J. G.} and Thayer, {J. B.} and Thompson, {D. J.} and L. Tibaldo and M. Tinivella and Torres, {D. F.} and G. Tosti and E. Troja and Y. Uchiyama and Usher, {T. L.} and J. Vandenbroucke and G. Vianello and V. Vitale and Waite, {A. P.} and Winer, {B. L.} and Wood, {K. S.} and M. Wood and Z. Yang and S. Zimmer and Coe, {M. J.} and {Di Mille}, F. and Edwards, {P. G.} and Filipović, {M. D.} and Payne, {J. L.} and J. Stevens and Torres, {M. A P}",
    year = "2012",
    month = "1",
    day = "13",
    doi = "10.1126/science.1213974",
    language = "English",
    volume = "335",
    pages = "189--193",
    journal = "Science",
    issn = "0036-8075",
    publisher = "American Association for the Advancement of Science",
    number = "6065",

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    TY - JOUR

    T1 - Periodic emission from the gamma-ray binary 1FGL J1018.6-5856

    AU - Ackermann, M.

    AU - Ajello, M.

    AU - Ballet, J.

    AU - Barbiellini, G.

    AU - Bastieri, D.

    AU - Belfiore, A.

    AU - Bellazzini, R.

    AU - Berenji, B.

    AU - Blandford, R. D.

    AU - Bloom, E. D.

    AU - Bonamente, E.

    AU - Borgland, A. W.

    AU - Bregeon, J.

    AU - Brigida, M.

    AU - Bruel, P.

    AU - Buehler, R.

    AU - Buson, S.

    AU - Caliandro, G. A.

    AU - Cameron, R. A.

    AU - Caraveo, P. A.

    AU - Cavazzuti, E.

    AU - Cecchi, C.

    AU - Çelik, Ö

    AU - Charles, E.

    AU - Chaty, S.

    AU - Chekhtman, A.

    AU - Cheung, C. C.

    AU - Chiang, J.

    AU - Ciprini, S.

    AU - Claus, R.

    AU - Cohen-Tanugi, J.

    AU - Corbel, S.

    AU - Corbet, R. H D

    AU - Cutini, S.

    AU - De Luca, A.

    AU - Den Hartog, P. R.

    AU - De Palma, F.

    AU - Dermer, C. D.

    AU - Digel, S. W.

    AU - Do Couto E Silva, E.

    AU - Donato, D.

    AU - Drell, P. S.

    AU - Drlica-Wagner, A.

    AU - Dubois, R.

    AU - Dubus, G.

    AU - Favuzzi, C.

    AU - Fegan, S. J.

    AU - Ferrara, E. C.

    AU - Focke, W. B.

    AU - Fortin, P.

    AU - Fukazawa, Y.

    AU - Funk, S.

    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 - Grove, J. E.

    AU - Guiriec, S.

    AU - Hadasch, D.

    AU - Hanabata, Y.

    AU - Harding, A. K.

    AU - Hayashida, M.

    AU - Hays, E.

    AU - Hill, A. B.

    AU - Hughes, R. E.

    AU - Jóhannesson, G.

    AU - Johnson, A. S.

    AU - Johnson, T. J.

    AU - Kamae, T.

    AU - Katagiri, H.

    AU - Kataoka, Jun

    AU - Kerr, M.

    AU - Knödlseder, J.

    AU - Kuss, M.

    AU - Lande, J.

    AU - Longo, F.

    AU - Loparco, F.

    AU - Lovellette, M. N.

    AU - Lubrano, P.

    AU - Mazziotta, M. N.

    AU - McEnery, J. E.

    AU - Michelson, P. F.

    AU - Mitthumsiri, W.

    AU - Mizuno, T.

    AU - Monte, C.

    AU - Monzani, M. E.

    AU - Morselli, A.

    AU - Moskalenko, I. V.

    AU - Murgia, S.

    AU - Nakamori, T.

    AU - Naumann-Godo, M.

    AU - Norris, J. P.

    AU - Nuss, E.

    AU - Ohno, M.

    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 - Pivato, G.

    AU - Porter, T. A.

    AU - Rainò, S.

    AU - Rando, R.

    AU - Razzano, M.

    AU - Reimer, A.

    AU - Reimer, O.

    AU - Ritz, S.

    AU - Romani, R. W.

    AU - Roth, M.

    AU - Saz Parkinson, P. M.

    AU - Sgrò, C.

    AU - Siskind, E. J.

    AU - Spandre, G.

    AU - Spinelli, P.

    AU - Suson, D. J.

    AU - Takahashi, H.

    AU - Tanaka, T.

    AU - Thayer, J. G.

    AU - Thayer, J. B.

    AU - Thompson, D. J.

    AU - Tibaldo, L.

    AU - Tinivella, M.

    AU - Torres, D. F.

    AU - Tosti, G.

    AU - Troja, E.

    AU - Uchiyama, Y.

    AU - Usher, T. L.

    AU - Vandenbroucke, J.

    AU - Vianello, G.

    AU - Vitale, V.

    AU - Waite, A. P.

    AU - Winer, B. L.

    AU - Wood, K. S.

    AU - Wood, M.

    AU - Yang, Z.

    AU - Zimmer, S.

    AU - Coe, M. J.

    AU - Di Mille, F.

    AU - Edwards, P. G.

    AU - Filipović, M. D.

    AU - Payne, J. L.

    AU - Stevens, J.

    AU - Torres, M. A P

    PY - 2012/1/13

    Y1 - 2012/1/13

    N2 - Gamma-ray binaries are stellar systems containing a neutron star or black hole, with gamma-ray emission produced by an interaction between the components. These systems are rare, even though binary evolution models predict dozens in our Galaxy. A search for gamma-ray binaries with the Fermi Large Area Telescope (LAT) shows that 1FGL J1018.6-5856 exhibits intensity and spectral modulation with a 16.6-day period. We identified a variable x-ray counterpart, which shows a sharp maximum coinciding with maximum gamma-ray emission, as well as an O6V((f)) star optical counterpart and a radio counterpart that is also apparently modulated on the orbital period. 1FGL J1018.6-5856 is thus a gamma-ray binary, and its detection suggests the presence of other fainter binaries in the Galaxy.

    AB - Gamma-ray binaries are stellar systems containing a neutron star or black hole, with gamma-ray emission produced by an interaction between the components. These systems are rare, even though binary evolution models predict dozens in our Galaxy. A search for gamma-ray binaries with the Fermi Large Area Telescope (LAT) shows that 1FGL J1018.6-5856 exhibits intensity and spectral modulation with a 16.6-day period. We identified a variable x-ray counterpart, which shows a sharp maximum coinciding with maximum gamma-ray emission, as well as an O6V((f)) star optical counterpart and a radio counterpart that is also apparently modulated on the orbital period. 1FGL J1018.6-5856 is thus a gamma-ray binary, and its detection suggests the presence of other fainter binaries in the Galaxy.

    UR - http://www.scopus.com/inward/record.url?scp=84862908430&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84862908430&partnerID=8YFLogxK

    U2 - 10.1126/science.1213974

    DO - 10.1126/science.1213974

    M3 - Article

    VL - 335

    SP - 189

    EP - 193

    JO - Science

    JF - Science

    SN - 0036-8075

    IS - 6065

    ER -