PSR J2030+3641: RADIO DISCOVERY AND GAMMA-RAY STUDY OF A MIDDLE-AGED PULSAR IN THE NOW IDENTIFIED FERMI-LAT SOURCE 1FGL J2030.0+3641

被引:19
作者
Camilo, F. [1 ]
Kerr, M. [2 ,3 ]
Ray, P. S. [4 ]
Ransom, S. M. [5 ]
Johnston, S. [6 ]
Romani, R. W. [2 ,3 ]
Parent, D. [7 ]
DeCesar, M. E. [8 ]
Harding, A. K. [8 ]
Donato, D. [8 ,9 ,10 ,11 ]
Parkinson, P. M. Saz [12 ,13 ]
Ferrara, E. C. [8 ]
Freire, P. C. C. [14 ]
Guillemot, L. [14 ]
Keith, M. [6 ]
Kramer, M. [14 ,15 ]
Wood, K. S. [4 ]
机构
[1] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA
[2] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA
[3] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA
[4] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA
[5] Natl Radio Astron Observ, Charlottesville, VA 22903 USA
[6] Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW 1710, Australia
[7] George Mason Univ, Ctr Earth Observing & Space Res, Coll Sci, Fairfax, VA 22030 USA
[8] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[9] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[10] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[11] CRESST, Greenbelt, MD 20771 USA
[12] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA
[13] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
[14] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[15] Univ Manchester, Jodrell Bank, Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England
关键词
gamma rays: stars; pulsars: individual (PSR J2030+3641); LARGE-AREA TELESCOPE; BLIND FREQUENCY SEARCHES; MILLISECOND PULSARS; LIGHT CURVES; POLARIZATION; EMISSION; ACCELERATION; RADIATION; GEOMETRY; PROFILE;
D O I
10.1088/0004-637X/746/1/39
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In a radio search with the Green Bank Telescope of three unidentified low Galactic latitude Fermi Large Area Telescope (LAT) sources, we have discovered the middle-aged pulsar J2030+3641 associated with 1FGL J2030.0+3641 (2FGL J2030.0+3640). Following the detection of gamma-ray pulsations using a radio ephemeris, we have obtained a phase-coherent timing solution based on gamma-ray and radio pulse arrival times which spans the entire Fermi mission. With a rotation period of 0.2 s, a spin-down luminosity of 3 x 10(34) erg s(-1), and a characteristic age of 0.5 Myr, PSR J2030+3641 is a middle-aged neutron star with spin parameters similar to those of the exceedingly gamma-ray-bright and radio-undetected Geminga. Its gamma-ray flux is 1% that of Geminga, primarily because of its much larger distance, as suggested by the large integrated column density of free electrons, DM = 246 pc cm(-3). We fit the gamma-ray light curve, along with limited radio polarimetric constraints, to four geometrical models of magnetospheric emission, and while none of the fits have high significance some are encouraging and suggest that further refinements of these models may be worthwhile. We argue that not many more non-millisecond radio pulsars may be detected along the Galactic plane that are responsible for LAT sources, but that modified methods to search for gamma-ray pulsations should be productive-PSR J2030+3641 would have been found blindly in gamma rays if only >= 0.8 GeV photons had been considered, owing to its relatively flat spectrum and location in a region of high soft background.
引用
收藏
页数:8
相关论文
共 54 条
[1]   TeV gamma-ray sources from a survey of the Galactic plane with Milagro [J].
Abdo, A. A. ;
Allen, B. ;
Berley, D. ;
Casanova, S. ;
Chen, C. ;
Coyne, D. G. ;
Dingus, B. L. ;
Ellsworth, R. W. ;
Fleysher, L. ;
Fleysher, R. ;
Gonzalez, M. M. ;
Goodman, J. A. ;
Hays, E. ;
Hoffman, C. M. ;
Hopper, B. ;
Huentemeyer, P. H. ;
Kolterman, B. E. ;
Lansdell, C. P. ;
Linnemann, J. T. ;
McEnery, J. E. ;
Mincer, A. I. ;
Nemethy, P. ;
Noyes, D. ;
Ryan, J. M. ;
Parkinson, P. M. Saz ;
Shoup, A. ;
Sinnis, G. ;
Smith, A. J. ;
Sullivan, G. W. ;
Vasileiou, V. ;
Walker, G. P. ;
Williams, D. A. ;
Xu, X. W. ;
Yodh, G. B. .
ASTROPHYSICAL JOURNAL, 2007, 664 (02) :L91-L94
[2]   PSR J0007+7303 IN THE CTA1 SUPERNOVA REMNANT: NEW GAMMA-RAY RESULTS FROM TWO YEARS OF FERMI LARGE AREA TELESCOPE OBSERVATIONS [J].
Abdo, A. A. ;
Wood, K. S. ;
DeCesar, M. E. ;
Gargano, F. ;
Giordano, F. ;
Ray, P. S. ;
Parent, D. ;
Harding, A. K. ;
Miller, M. Coleman ;
Wood, D. L. ;
Wolff, M. T. .
ASTROPHYSICAL JOURNAL, 2012, 744 (02)
[3]   FERMI LARGE AREA TELESCOPE FIRST SOURCE CATALOG [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Allafort, A. ;
Antolini, E. ;
Atwood, W. B. ;
Axelsson, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Belli, F. ;
Berenji, B. ;
Bisello, D. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonamente, E. ;
Bonnell, J. ;
Borgland, A. W. ;
Bouvier, A. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Busetto, G. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Campana, R. ;
Canadas, B. ;
Caraveo, P. A. ;
Carrigan, S. ;
Casandjian, J. M. ;
Cavazzuti, E. ;
Ceccanti, M. ;
Cecchi, C. ;
Celik, Oe. ;
Charles, E. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Cillis, A. N. ;
Ciprini, S. ;
Claus, R. ;
Cohen-Tanugi, J. ;
Conrad, J. .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2010, 188 (02) :405-436
[4]   THE FIRST FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Atwood, W. B. ;
Axelsson, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Baring, M. G. ;
Bastieri, D. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Berenji, B. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonamente, E. ;
Borgland, A. W. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Camilo, F. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cecchi, C. ;
Celik, Oe ;
Charles, E. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Ciprini, S. ;
Claus, R. ;
Cognard, I. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Corbet, R. ;
Cutini, S. ;
den Hartog, P. R. ;
Dermer, C. D. ;
de Angelis, A. ;
de Luca, A. ;
de Palma, F. ;
Digel, S. W. ;
Dormody, M. .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2010, 187 (02) :460-494
[5]   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 [J].
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. ;
Celik, Oe. ;
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. .
ASTROPHYSICAL JOURNAL, 2010, 712 (02) :957-963
[6]   PSR J1907+0602: A RADIO-FAINT GAMMA-RAY PULSAR POWERING A BRIGHT TeV PULSAR WIND NEBULA [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Berenji, B. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonamente, E. ;
Borgland, A. W. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Buson, S. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Camilo, F. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cecchi, C. ;
Celik, Oe. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Ciprini, S. ;
Claus, R. ;
Cognard, I. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Cutini, S. ;
de Angelis, A. ;
de Palma, F. ;
Digel, S. W. ;
Dingus, B. L. ;
Dormody, M. ;
do Couto e Silva, E. ;
Drell, P. S. ;
Dubois, R. ;
Dumora, D. ;
Farnier, C. ;
Favuzzi, C. ;
Fegan, S. J. .
ASTROPHYSICAL JOURNAL, 2010, 711 (01) :64-74
[7]   Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Anderson, B. ;
Atwood, W. B. ;
Axelsson, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Baring, M. G. ;
Bastieri, D. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Berenji, B. ;
Bignami, G. F. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonamente, E. ;
Borgland, A. W. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cecchi, C. ;
Celik, Oe ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Ciprini, S. ;
Claus, R. ;
Cohen-Tanugi, J. ;
Conrad, J. ;
Cutini, S. ;
Dermer, C. D. ;
de Angelis, A. ;
de Luca, A. ;
de Palma, F. ;
Digel, S. W. ;
Dormody, M. ;
do Couto e Silva, E. ;
Drell, P. S. ;
Dubois, R. ;
Dumora, D. ;
Farnier, C. .
SCIENCE, 2009, 325 (5942) :840-844
[8]   A Population of Gamma-Ray Millisecond Pulsars Seen with the Fermi Large Area Telescope [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Atwood, W. B. ;
Axelsson, M. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Baring, M. G. ;
Bastieri, D. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Berenji, B. ;
Bignami, G. F. ;
Blandford, R. D. ;
Bloom, E. D. ;
Bonamente, E. ;
Borgland, A. W. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Camilo, F. ;
Caraveo, P. A. ;
Carlson, P. ;
Casandjian, J. M. ;
Cecchi, C. ;
Celik, Oe ;
Charles, E. ;
Chekhtman, A. ;
Cheung, C. C. ;
Chiang, J. ;
Ciprini, S. ;
Claus, R. ;
Cognard, I. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Corbet, R. ;
Cutini, S. ;
Dermer, C. D. ;
Desvignes, G. ;
de Angelis, A. ;
de Luca, A. ;
de Palma, F. ;
Digel, S. W. .
SCIENCE, 2009, 325 (5942) :848-852
[9]  
Abdo AA, 2009, ASTROPHYS J LETT, V700, pL127, DOI 10.1088/0004-637X/700/2/L127
[10]   PULSED GAMMA-RAYS FROM PSR J2021+3651 WITH THE FERMI LARGE AREA TELESCOPE [J].
Abdo, A. A. ;
Ackermann, M. ;
Ajello, M. ;
Atwood, W. B. ;
Baldini, L. ;
Ballet, J. ;
Barbiellini, G. ;
Bastieri, D. ;
Battelino, M. ;
Baughman, B. M. ;
Bechtol, K. ;
Bellazzini, R. ;
Berenji, B. ;
Bloom, E. D. ;
Bogaert, G. ;
Borgland, A. W. ;
Bregeon, J. ;
Brez, A. ;
Brigida, M. ;
Bruel, P. ;
Burnett, T. H. ;
Caliandro, G. A. ;
Cameron, R. A. ;
Camilo, F. ;
Caraveo, P. A. ;
Casandjian, J. M. ;
Cecchi, C. ;
Charles, E. ;
Chekhtman, A. ;
Chen, A. W. ;
Cheung, C. C. ;
Chiang, J. ;
Ciprini, S. ;
Cognard, I. ;
Cohen-Tanugi, J. ;
Cominsky, L. R. ;
Conrad, J. ;
Cutini, S. ;
Demorest, P. ;
Dermer, C. D. ;
de Angelis, A. ;
de Luca, A. ;
de Palma, F. ;
Digel, S. W. ;
Dormody, M. ;
do Couto E Silva, E. ;
Drell, P. S. ;
Dubois, R. ;
Dumora, D. ;
Espinoza, C. .
ASTROPHYSICAL JOURNAL, 2009, 700 (02) :1059-1066