Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740

A. Noutsos, A. A. Abdo, M. Ackermann, M. Ajello, J. Ballet, G. Barbiellini, M. G. Baring, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, E. Bonamente, A. W. Borgland, J. Bregeon, A. Brez, M. Brigida, P. Bruel, R. Buehler, G. Busetto, G. A. CaliandroR. A. Cameron, F. Camilo, P. A. Caraveo, J. M. Casandjian, C. Cecchi, Ö Çelik, S. Chaty, A. Chekhtman, J. Chiang, S. Ciprini, R. Claus, I. Cognard, J. Cohen-Tanugi, S. Colafrancesco, S. Cutini, C. D. Dermer, F. De Palma, P. S. Drell, D. Dumora, C. M. Ea, C. Favuzzi, E. C. Ferrara, W. B. Focke, M. Frailis, P. C C Freire, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, S. Germani, N. Giglietto, F. Giordano, M. Giroletti, G. Godfrey, P. Grandi, I. A. Grenier, J. E. Grove, L. Guillemot, S. Guiriec, A. K. Harding, R. E. Hughes, M. S. Jackson, G. Jóhannesson, A. S. Johnson, T. J. Johnson, W. N. Johnson, S. Johnston, T. Kamae, H. Katagiri, Jun Kataoka, J. Knödlseder, M. Kramer, M. Kuss, J. Lande, S. H. Lee, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, A. G. Lyne, A. Makeev, M. Marelli, M. N. Mazziotta, J. E. McEnery, J. Mehault, P. F. Michelson, T. Mizuno, C. Monte, M. E. Monzani, A. Morselli, I. V. Moskalenko, S. Murgia, M. Naumann-Godo, P. L. Nolan, E. Nuss, T. Ohsugi, A. Okumura, N. Omodei, E. Orlando, J. F. Ormes, J. H. Panetta, D. Parent, V. Pelassa, M. Pepe, M. Persic, M. Pesce-Rollins, F. Piron, T. A. Porter, S. Rainò, P. S. Ray, M. Razzano, A. Reimer, O. Reimer, T. Reposeur, R. W. Romani, H. F W Sadrozinski, A. Sander, P. M. Saz Parkinson, C. Sgrò, E. J. Siskind, D. A. Smith, P. D. Smith, G. Spandre, P. Spinelli, B. W. Stappers, M. S. Strickman, D. J. Suson, H. Takahashi, T. Tanaka, G. Theureau, D. J. Thompson, S. E. Thorsett, O. Tibolla, D. F. Torres, A. Tramacere, T. L. Usher, J. Vandenbroucke, G. Vianello, N. Vilchez, M. Villata, V. Vitale, A. Von Kienlin, A. P. Waite, P. Wang, K. Watters, P. Weltevrede, B. L. Winer, K. S. Wood, M. Ziegler

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    We report on the first year of Fermi γ-ray observations of pulsed high-energy emission from the old PSR J2043 + 2740. The study of the γ-ray efficiency of such old pulsars gives us an insight into the evolution of pulsars' ability to emit in γ rays as they age. The y-ray light curve of this pulsar above 0.1 GeV is clearly defined by two sharp peaks, 0.353 ± 0.035 periods apart. We have combined the γ-ray profile characteristics of PSR J2043 + 2740 with the geometrical properties of the pulsar's radio emission, derived from radio-polarization data, and constrained the pulsar-beam geometry in the framework of a two-pole caustic (TPC) and an outer gap (OG) model. The ranges of magnetic inclination and viewing angle were determined to be {α, ζ} ∼ {52°-57°, 61°-68°} for the TPC model, and {α, ζ} ∼ {62°-73°, 74°-81°} and {α, ζ,} ∼ {72°-83°, 60°-75°} for the OG model. Based on this geometry, we assess possible birth locations for this pulsar and derive a likely proper motion, sufficiently high to be measurable with VLBI. At a characteristic age of 1.2 Myr, PSR J2043 + 2740 is the third oldest of all discovered, non-recycled, γ-ray pulsars: it is twice as old as the next oldest, PSR J0357 + 32, and younger only than the recently discovered PSR J1836 + 5925 and PSR J2055 + 25, both of which are at least five and ten times less energetic, respectively.

    Original languageEnglish
    JournalAstrophysical Journal
    Volume728
    Issue number2
    DOIs
    Publication statusPublished - 2011 Feb 20

    Fingerprint

    pulsars
    rays
    radio
    geometry
    magnetic inclination
    very long baseline interferometry
    energetics
    polarization
    alkalies
    poles
    very long base interferometry
    proper motion
    radio emission
    energy
    light curve
    inclination
    profiles
    young

    Keywords

    • Gamma rays: stars

    ASJC Scopus subject areas

    • Space and Planetary Science
    • Astronomy and Astrophysics

    Cite this

    Noutsos, A., Abdo, A. A., Ackermann, M., Ajello, M., Ballet, J., Barbiellini, G., ... Ziegler, M. (2011). Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740. Astrophysical Journal, 728(2). https://doi.org/10.1088/0004-637X/728/2/77

    Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740. / Noutsos, A.; Abdo, A. A.; Ackermann, M.; Ajello, M.; Ballet, J.; Barbiellini, G.; Baring, M. G.; Bastieri, D.; Bechtol, K.; Bellazzini, R.; Berenji, B.; Bonamente, E.; Borgland, A. W.; Bregeon, J.; Brez, A.; Brigida, M.; Bruel, P.; Buehler, R.; Busetto, G.; Caliandro, G. A.; Cameron, R. A.; Camilo, F.; Caraveo, P. A.; Casandjian, J. M.; Cecchi, C.; Çelik, Ö; Chaty, S.; Chekhtman, A.; Chiang, J.; Ciprini, S.; Claus, R.; Cognard, I.; Cohen-Tanugi, J.; Colafrancesco, S.; Cutini, S.; Dermer, C. D.; De Palma, F.; Drell, P. S.; Dumora, D.; Ea, C. M.; Favuzzi, C.; Ferrara, E. C.; Focke, W. B.; Frailis, M.; Freire, P. C C; Fukazawa, Y.; Funk, S.; Fusco, P.; Gargano, F.; Germani, S.; Giglietto, N.; Giordano, F.; Giroletti, M.; Godfrey, G.; Grandi, P.; Grenier, I. A.; Grove, J. E.; Guillemot, L.; Guiriec, S.; Harding, A. K.; Hughes, R. E.; Jackson, M. S.; Jóhannesson, G.; Johnson, A. S.; Johnson, T. J.; Johnson, W. N.; Johnston, S.; Kamae, T.; Katagiri, H.; Kataoka, Jun; Knödlseder, J.; Kramer, M.; Kuss, M.; Lande, J.; Lee, S. H.; Longo, F.; Loparco, F.; Lovellette, M. N.; Lubrano, P.; Lyne, A. G.; Makeev, A.; Marelli, M.; Mazziotta, M. N.; McEnery, J. E.; Mehault, J.; Michelson, P. F.; Mizuno, T.; Monte, C.; Monzani, M. E.; Morselli, A.; Moskalenko, I. V.; Murgia, S.; Naumann-Godo, M.; Nolan, P. L.; Nuss, E.; Ohsugi, T.; Okumura, A.; Omodei, N.; Orlando, E.; Ormes, J. F.; Panetta, J. H.; Parent, D.; Pelassa, V.; Pepe, M.; Persic, M.; Pesce-Rollins, M.; Piron, F.; Porter, T. A.; Rainò, S.; Ray, P. S.; Razzano, M.; Reimer, A.; Reimer, O.; Reposeur, T.; Romani, R. W.; Sadrozinski, H. F W; Sander, A.; Saz Parkinson, P. M.; Sgrò, C.; Siskind, E. J.; Smith, D. A.; Smith, P. D.; Spandre, G.; Spinelli, P.; Stappers, B. W.; Strickman, M. S.; Suson, D. J.; Takahashi, H.; Tanaka, T.; Theureau, G.; Thompson, D. J.; Thorsett, S. E.; Tibolla, O.; Torres, D. F.; Tramacere, A.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Vilchez, N.; Villata, M.; Vitale, V.; Von Kienlin, A.; Waite, A. P.; Wang, P.; Watters, K.; Weltevrede, P.; Winer, B. L.; Wood, K. S.; Ziegler, M.

    In: Astrophysical Journal, Vol. 728, No. 2, 20.02.2011.

    Research output: Contribution to journalArticle

    Noutsos, A, Abdo, AA, Ackermann, M, Ajello, M, Ballet, J, Barbiellini, G, Baring, MG, Bastieri, D, Bechtol, K, Bellazzini, R, Berenji, B, Bonamente, E, Borgland, AW, Bregeon, J, Brez, A, Brigida, M, Bruel, P, Buehler, R, Busetto, G, Caliandro, GA, Cameron, RA, Camilo, F, Caraveo, PA, Casandjian, JM, Cecchi, C, Çelik, Ö, Chaty, S, Chekhtman, A, Chiang, J, Ciprini, S, Claus, R, Cognard, I, Cohen-Tanugi, J, Colafrancesco, S, Cutini, S, Dermer, CD, De Palma, F, Drell, PS, Dumora, D, Ea, CM, Favuzzi, C, Ferrara, EC, Focke, WB, Frailis, M, Freire, PCC, Fukazawa, Y, Funk, S, Fusco, P, Gargano, F, Germani, S, Giglietto, N, Giordano, F, Giroletti, M, Godfrey, G, Grandi, P, Grenier, IA, Grove, JE, Guillemot, L, Guiriec, S, Harding, AK, Hughes, RE, Jackson, MS, Jóhannesson, G, Johnson, AS, Johnson, TJ, Johnson, WN, Johnston, S, Kamae, T, Katagiri, H, Kataoka, J, Knödlseder, J, Kramer, M, Kuss, M, Lande, J, Lee, SH, Longo, F, Loparco, F, Lovellette, MN, Lubrano, P, Lyne, AG, Makeev, A, Marelli, M, Mazziotta, MN, McEnery, JE, Mehault, J, Michelson, PF, Mizuno, T, Monte, C, Monzani, ME, Morselli, A, Moskalenko, IV, Murgia, S, Naumann-Godo, M, Nolan, PL, Nuss, E, Ohsugi, T, Okumura, A, Omodei, N, Orlando, E, Ormes, JF, Panetta, JH, Parent, D, Pelassa, V, Pepe, M, Persic, M, Pesce-Rollins, M, Piron, F, Porter, TA, Rainò, S, Ray, PS, Razzano, M, Reimer, A, Reimer, O, Reposeur, T, Romani, RW, Sadrozinski, HFW, Sander, A, Saz Parkinson, PM, Sgrò, C, Siskind, EJ, Smith, DA, Smith, PD, Spandre, G, Spinelli, P, Stappers, BW, Strickman, MS, Suson, DJ, Takahashi, H, Tanaka, T, Theureau, G, Thompson, DJ, Thorsett, SE, Tibolla, O, Torres, DF, Tramacere, A, Usher, TL, Vandenbroucke, J, Vianello, G, Vilchez, N, Villata, M, Vitale, V, Von Kienlin, A, Waite, AP, Wang, P, Watters, K, Weltevrede, P, Winer, BL, Wood, KS & Ziegler, M 2011, 'Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740', Astrophysical Journal, vol. 728, no. 2. https://doi.org/10.1088/0004-637X/728/2/77
    Noutsos, A. ; Abdo, A. A. ; Ackermann, M. ; Ajello, M. ; Ballet, J. ; Barbiellini, G. ; Baring, M. G. ; Bastieri, D. ; Bechtol, K. ; Bellazzini, R. ; Berenji, B. ; Bonamente, E. ; Borgland, A. W. ; Bregeon, J. ; Brez, A. ; Brigida, M. ; Bruel, P. ; Buehler, R. ; Busetto, G. ; Caliandro, G. A. ; Cameron, R. A. ; Camilo, F. ; Caraveo, P. A. ; Casandjian, J. M. ; Cecchi, C. ; Çelik, Ö ; Chaty, S. ; Chekhtman, A. ; Chiang, J. ; Ciprini, S. ; Claus, R. ; Cognard, I. ; Cohen-Tanugi, J. ; Colafrancesco, S. ; Cutini, S. ; Dermer, C. D. ; De Palma, F. ; Drell, P. S. ; Dumora, D. ; Ea, C. M. ; Favuzzi, C. ; Ferrara, E. C. ; Focke, W. B. ; Frailis, M. ; Freire, P. C C ; Fukazawa, Y. ; Funk, S. ; Fusco, P. ; Gargano, F. ; Germani, S. ; Giglietto, N. ; Giordano, F. ; Giroletti, M. ; Godfrey, G. ; Grandi, P. ; Grenier, I. A. ; Grove, J. E. ; Guillemot, L. ; Guiriec, S. ; Harding, A. K. ; Hughes, R. E. ; Jackson, M. S. ; Jóhannesson, G. ; Johnson, A. S. ; Johnson, T. J. ; Johnson, W. N. ; Johnston, S. ; Kamae, T. ; Katagiri, H. ; Kataoka, Jun ; Knödlseder, J. ; Kramer, M. ; Kuss, M. ; Lande, J. ; Lee, S. H. ; Longo, F. ; Loparco, F. ; Lovellette, M. N. ; Lubrano, P. ; Lyne, A. G. ; Makeev, A. ; Marelli, M. ; Mazziotta, M. N. ; McEnery, J. E. ; Mehault, J. ; Michelson, P. F. ; Mizuno, T. ; Monte, C. ; Monzani, M. E. ; Morselli, A. ; Moskalenko, I. V. ; Murgia, S. ; Naumann-Godo, M. ; Nolan, P. L. ; Nuss, E. ; Ohsugi, T. ; Okumura, A. ; Omodei, N. ; Orlando, E. ; Ormes, J. F. ; Panetta, J. H. ; Parent, D. ; Pelassa, V. ; Pepe, M. ; Persic, M. ; Pesce-Rollins, M. ; Piron, F. ; Porter, T. A. ; Rainò, S. ; Ray, P. S. ; Razzano, M. ; Reimer, A. ; Reimer, O. ; Reposeur, T. ; Romani, R. W. ; Sadrozinski, H. F W ; Sander, A. ; Saz Parkinson, P. M. ; Sgrò, C. ; Siskind, E. J. ; Smith, D. A. ; Smith, P. D. ; Spandre, G. ; Spinelli, P. ; Stappers, B. W. ; Strickman, M. S. ; Suson, D. J. ; Takahashi, H. ; Tanaka, T. ; Theureau, G. ; Thompson, D. J. ; Thorsett, S. E. ; Tibolla, O. ; Torres, D. F. ; Tramacere, A. ; Usher, T. L. ; Vandenbroucke, J. ; Vianello, G. ; Vilchez, N. ; Villata, M. ; Vitale, V. ; Von Kienlin, A. ; Waite, A. P. ; Wang, P. ; Watters, K. ; Weltevrede, P. ; Winer, B. L. ; Wood, K. S. ; Ziegler, M. / Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740. In: Astrophysical Journal. 2011 ; Vol. 728, No. 2.
    @article{9521d99e079746c6b903db912cb69535,
    title = "Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740",
    abstract = "We report on the first year of Fermi γ-ray observations of pulsed high-energy emission from the old PSR J2043 + 2740. The study of the γ-ray efficiency of such old pulsars gives us an insight into the evolution of pulsars' ability to emit in γ rays as they age. The y-ray light curve of this pulsar above 0.1 GeV is clearly defined by two sharp peaks, 0.353 ± 0.035 periods apart. We have combined the γ-ray profile characteristics of PSR J2043 + 2740 with the geometrical properties of the pulsar's radio emission, derived from radio-polarization data, and constrained the pulsar-beam geometry in the framework of a two-pole caustic (TPC) and an outer gap (OG) model. The ranges of magnetic inclination and viewing angle were determined to be {α, ζ} ∼ {52°-57°, 61°-68°} for the TPC model, and {α, ζ} ∼ {62°-73°, 74°-81°} and {α, ζ,} ∼ {72°-83°, 60°-75°} for the OG model. Based on this geometry, we assess possible birth locations for this pulsar and derive a likely proper motion, sufficiently high to be measurable with VLBI. At a characteristic age of 1.2 Myr, PSR J2043 + 2740 is the third oldest of all discovered, non-recycled, γ-ray pulsars: it is twice as old as the next oldest, PSR J0357 + 32, and younger only than the recently discovered PSR J1836 + 5925 and PSR J2055 + 25, both of which are at least five and ten times less energetic, respectively.",
    keywords = "Gamma rays: stars",
    author = "A. Noutsos and Abdo, {A. A.} and M. Ackermann and M. Ajello and J. Ballet and G. Barbiellini and Baring, {M. G.} and D. Bastieri and K. Bechtol and R. Bellazzini and B. Berenji and E. Bonamente and Borgland, {A. W.} and J. Bregeon and A. Brez and M. Brigida and P. Bruel and R. Buehler and G. Busetto and Caliandro, {G. A.} and Cameron, {R. A.} and F. Camilo and Caraveo, {P. A.} and Casandjian, {J. M.} and C. Cecchi and {\"O} {\cC}elik and S. Chaty and A. Chekhtman and J. Chiang and S. Ciprini and R. Claus and I. Cognard and J. Cohen-Tanugi and S. Colafrancesco and S. Cutini and Dermer, {C. D.} and {De Palma}, F. and Drell, {P. S.} and D. Dumora and Ea, {C. M.} and C. Favuzzi and Ferrara, {E. C.} 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 S. Germani and N. Giglietto and F. Giordano and M. Giroletti and G. Godfrey and P. Grandi and Grenier, {I. A.} and Grove, {J. E.} and L. Guillemot and S. Guiriec and Harding, {A. K.} and Hughes, {R. E.} and Jackson, {M. S.} 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 J. Kn{\"o}dlseder and M. Kramer and M. Kuss and J. Lande and Lee, {S. H.} and F. Longo and F. Loparco and Lovellette, {M. N.} and P. Lubrano and Lyne, {A. G.} and A. Makeev and M. Marelli and Mazziotta, {M. N.} and McEnery, {J. E.} and J. Mehault and Michelson, {P. F.} and T. Mizuno and C. Monte and Monzani, {M. E.} and A. Morselli and Moskalenko, {I. V.} and S. Murgia and M. Naumann-Godo and Nolan, {P. L.} and E. Nuss and T. Ohsugi and A. Okumura and N. Omodei and E. Orlando and Ormes, {J. F.} and Panetta, {J. H.} and D. Parent and V. Pelassa and M. Pepe and M. Persic and M. Pesce-Rollins and F. Piron and Porter, {T. A.} and S. Rain{\`o} and Ray, {P. S.} and M. Razzano and A. Reimer and O. Reimer and T. Reposeur and Romani, {R. W.} and Sadrozinski, {H. F W} and A. Sander and {Saz Parkinson}, {P. M.} 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 Strickman, {M. S.} and Suson, {D. J.} and H. Takahashi and T. Tanaka and G. Theureau and Thompson, {D. J.} and Thorsett, {S. E.} and O. Tibolla and Torres, {D. F.} and A. Tramacere and Usher, {T. L.} and J. Vandenbroucke and G. Vianello and N. Vilchez and M. Villata and V. Vitale and {Von Kienlin}, A. and Waite, {A. P.} and P. Wang and K. Watters and P. Weltevrede and Winer, {B. L.} and Wood, {K. S.} and M. Ziegler",
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    day = "20",
    doi = "10.1088/0004-637X/728/2/77",
    language = "English",
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    journal = "Astrophysical Journal",
    issn = "0004-637X",
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    TY - JOUR

    T1 - Radio and γ-ray constraints on the emission geometry and birthplace of PSR j2043+2740

    AU - Noutsos, A.

    AU - Abdo, A. A.

    AU - Ackermann, M.

    AU - Ajello, M.

    AU - Ballet, J.

    AU - Barbiellini, G.

    AU - Baring, M. G.

    AU - Bastieri, D.

    AU - Bechtol, K.

    AU - Bellazzini, R.

    AU - Berenji, B.

    AU - Bonamente, E.

    AU - Borgland, A. W.

    AU - Bregeon, J.

    AU - Brez, A.

    AU - Brigida, M.

    AU - Bruel, P.

    AU - Buehler, R.

    AU - Busetto, G.

    AU - Caliandro, G. A.

    AU - Cameron, R. A.

    AU - Camilo, F.

    AU - Caraveo, P. A.

    AU - Casandjian, J. M.

    AU - Cecchi, C.

    AU - Çelik, Ö

    AU - Chaty, S.

    AU - Chekhtman, A.

    AU - Chiang, J.

    AU - Ciprini, S.

    AU - Claus, R.

    AU - Cognard, I.

    AU - Cohen-Tanugi, J.

    AU - Colafrancesco, S.

    AU - Cutini, S.

    AU - Dermer, C. D.

    AU - De Palma, F.

    AU - Drell, P. S.

    AU - Dumora, D.

    AU - Ea, C. M.

    AU - Favuzzi, C.

    AU - Ferrara, E. C.

    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 - Germani, S.

    AU - Giglietto, N.

    AU - Giordano, F.

    AU - Giroletti, M.

    AU - Godfrey, G.

    AU - Grandi, P.

    AU - Grenier, I. A.

    AU - Grove, J. E.

    AU - Guillemot, L.

    AU - Guiriec, S.

    AU - Harding, A. K.

    AU - Hughes, R. E.

    AU - Jackson, M. S.

    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 - Knödlseder, J.

    AU - Kramer, M.

    AU - Kuss, M.

    AU - Lande, J.

    AU - Lee, S. H.

    AU - Longo, F.

    AU - Loparco, F.

    AU - Lovellette, M. N.

    AU - Lubrano, P.

    AU - Lyne, A. G.

    AU - Makeev, A.

    AU - Marelli, M.

    AU - Mazziotta, M. N.

    AU - McEnery, J. E.

    AU - Mehault, J.

    AU - Michelson, P. F.

    AU - Mizuno, T.

    AU - Monte, C.

    AU - Monzani, M. E.

    AU - Morselli, A.

    AU - Moskalenko, I. V.

    AU - Murgia, S.

    AU - Naumann-Godo, M.

    AU - Nolan, P. L.

    AU - Nuss, E.

    AU - Ohsugi, T.

    AU - Okumura, A.

    AU - Omodei, N.

    AU - Orlando, E.

    AU - Ormes, J. F.

    AU - Panetta, J. H.

    AU - Parent, D.

    AU - Pelassa, V.

    AU - Pepe, M.

    AU - Persic, M.

    AU - Pesce-Rollins, M.

    AU - Piron, F.

    AU - Porter, T. A.

    AU - Rainò, S.

    AU - Ray, P. S.

    AU - Razzano, M.

    AU - Reimer, A.

    AU - Reimer, O.

    AU - Reposeur, T.

    AU - Romani, R. W.

    AU - Sadrozinski, H. F W

    AU - Sander, A.

    AU - Saz Parkinson, P. M.

    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 - Strickman, M. S.

    AU - Suson, D. J.

    AU - Takahashi, H.

    AU - Tanaka, T.

    AU - Theureau, G.

    AU - Thompson, D. J.

    AU - Thorsett, S. E.

    AU - Tibolla, O.

    AU - Torres, D. F.

    AU - Tramacere, A.

    AU - Usher, T. L.

    AU - Vandenbroucke, J.

    AU - Vianello, G.

    AU - Vilchez, N.

    AU - Villata, M.

    AU - Vitale, V.

    AU - Von Kienlin, A.

    AU - Waite, A. P.

    AU - Wang, P.

    AU - Watters, K.

    AU - Weltevrede, P.

    AU - Winer, B. L.

    AU - Wood, K. S.

    AU - Ziegler, M.

    PY - 2011/2/20

    Y1 - 2011/2/20

    N2 - We report on the first year of Fermi γ-ray observations of pulsed high-energy emission from the old PSR J2043 + 2740. The study of the γ-ray efficiency of such old pulsars gives us an insight into the evolution of pulsars' ability to emit in γ rays as they age. The y-ray light curve of this pulsar above 0.1 GeV is clearly defined by two sharp peaks, 0.353 ± 0.035 periods apart. We have combined the γ-ray profile characteristics of PSR J2043 + 2740 with the geometrical properties of the pulsar's radio emission, derived from radio-polarization data, and constrained the pulsar-beam geometry in the framework of a two-pole caustic (TPC) and an outer gap (OG) model. The ranges of magnetic inclination and viewing angle were determined to be {α, ζ} ∼ {52°-57°, 61°-68°} for the TPC model, and {α, ζ} ∼ {62°-73°, 74°-81°} and {α, ζ,} ∼ {72°-83°, 60°-75°} for the OG model. Based on this geometry, we assess possible birth locations for this pulsar and derive a likely proper motion, sufficiently high to be measurable with VLBI. At a characteristic age of 1.2 Myr, PSR J2043 + 2740 is the third oldest of all discovered, non-recycled, γ-ray pulsars: it is twice as old as the next oldest, PSR J0357 + 32, and younger only than the recently discovered PSR J1836 + 5925 and PSR J2055 + 25, both of which are at least five and ten times less energetic, respectively.

    AB - We report on the first year of Fermi γ-ray observations of pulsed high-energy emission from the old PSR J2043 + 2740. The study of the γ-ray efficiency of such old pulsars gives us an insight into the evolution of pulsars' ability to emit in γ rays as they age. The y-ray light curve of this pulsar above 0.1 GeV is clearly defined by two sharp peaks, 0.353 ± 0.035 periods apart. We have combined the γ-ray profile characteristics of PSR J2043 + 2740 with the geometrical properties of the pulsar's radio emission, derived from radio-polarization data, and constrained the pulsar-beam geometry in the framework of a two-pole caustic (TPC) and an outer gap (OG) model. The ranges of magnetic inclination and viewing angle were determined to be {α, ζ} ∼ {52°-57°, 61°-68°} for the TPC model, and {α, ζ} ∼ {62°-73°, 74°-81°} and {α, ζ,} ∼ {72°-83°, 60°-75°} for the OG model. Based on this geometry, we assess possible birth locations for this pulsar and derive a likely proper motion, sufficiently high to be measurable with VLBI. At a characteristic age of 1.2 Myr, PSR J2043 + 2740 is the third oldest of all discovered, non-recycled, γ-ray pulsars: it is twice as old as the next oldest, PSR J0357 + 32, and younger only than the recently discovered PSR J1836 + 5925 and PSR J2055 + 25, both of which are at least five and ten times less energetic, respectively.

    KW - Gamma rays: stars

    UR - http://www.scopus.com/inward/record.url?scp=84891222024&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84891222024&partnerID=8YFLogxK

    U2 - 10.1088/0004-637X/728/2/77

    DO - 10.1088/0004-637X/728/2/77

    M3 - Article

    AN - SCOPUS:84891222024

    VL - 728

    JO - Astrophysical Journal

    JF - Astrophysical Journal

    SN - 0004-637X

    IS - 2

    ER -