PULSED HIGH-ENERGY GAMMA-RAYS FROM PSR-1055-52

被引:92
作者
FIERRO, JM
BERTSCH, DL
BRAZIER, KT
CHIANG, J
DAMICO, N
FICHTEL, CE
HARTMAN, RC
HUNTER, SD
JOHNSTON, S
KANBACH, G
KASPI, VM
KNIFFEN, DA
LIN, YC
LYNE, AG
MANCHESTER, RN
MATTOX, JR
MAYERHASSELWANDER, HA
MICHELSON, PF
VONMONTIGNY, C
NOLAN, PL
SCHNEID, E
THOMPSON, DJ
机构
[1] MAX PLANCK INST EXTRATERR PHYS,W-8046 GARCHING,GERMANY
[2] UNIV PALERMO,IST FIS,I-90134 PALERMO,ITALY
[3] CNR,IST RADIOASTRON,I-40126 BOLOGNA,ITALY
[4] CSIRO,AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA
[5] PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08544
[6] HAMPDEN SYDNEY COLL,HAMPDEN SYDNEY,VA 23943
[7] UNIV MANCHESTER,NUFFIELD RADIO ASTRON LABS,JODRELL BANK,MACCLESFIELD SK11 9DL,CHESHIRE,ENGLAND
[8] GRUMMAN AEROSP CORP,BETHPAGE,NY 11714
[9] NASA,GODDARD SPACE FLIGHT CTR,COMPTON OBSERV SCI SUPPORT CTR,ASTRON PROGRAM,COMP SCI CORP,GREENBELT,MD 20771
关键词
GAMMA-RAYS; OBSERVATIONS; PULSARS; INDIVIDUAL; (PSR-1055-52);
D O I
10.1086/186951
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma Ray Observatory has detected a high-energy gamma-ray source at a position coincident with that of the radio pulsar PSR 1055-52. Analysis of the EGRET data at the radio pulsar period of 197 ms has revealed pulsed gamma-radiation at energies above 300 MeV, making PSR 1055-52 the fifth detected high-energy gamma-ray pulsar. The pulsed radiation from PSR 1055 - 52 has a very hard photon spectral index of -1.18 +/- 0.16 and a high efficiency for converting its rotational energy into gamma-rays. No unpulsed emission was observed.
引用
收藏
页码:L27 / L30
页数:4
相关论文
共 32 条
  • [1] PULSED HIGH-ENERGY GAMMA-RADIATION FROM GEMINGA (1E0630+178)
    BERTSCH, DL
    BRAZIER, KTS
    FICHTEL, CE
    HARTMAN, RC
    HUNTER, SD
    KANBACH, G
    KNIFFEN, DA
    KWOK, PW
    LIN, YC
    MATTOX, JR
    MAYERHASSELWANDER, HA
    VONMONTIGNY, C
    MICHELSON, PF
    NOLAN, PL
    PINKAU, K
    ROTHERMEL, H
    SCHNEID, EJ
    SOMMER, M
    SREEKUMAR, P
    THOMPSON, DJ
    [J]. NATURE, 1992, 357 (6376) : 306 - 307
  • [2] BERTSCH DL, 1989, P GAMMA RAY OBSERVAT, P2
  • [3] BERTSCH DL, 1993, IN PRESS APJ
  • [4] BRAZIER KTS, 1993, UNPUB
  • [5] BRINKMANN W, 1987, ASTRON ASTROPHYS, V182, P71
  • [6] BUCCHERI R, 1983, ASTRON ASTROPHYS, V128, P245
  • [7] PULSAR DEATH LINES AND DEATH-VALLEY
    CHEN, KY
    RUDERMAN, M
    [J]. ASTROPHYSICAL JOURNAL, 1993, 402 (01) : 264 - 270
  • [8] X-RAYS FROM RADIO PULSARS - THE DETECTION OF PSR 1055-52
    CHENG, AF
    HELFAND, DJ
    [J]. ASTROPHYSICAL JOURNAL, 1983, 271 (01) : 271 - 282
  • [9] ENERGETIC RADIATION FROM RAPIDLY SPINNING PULSARS .1. OUTER MAGNETOSPHERE GAPS
    CHENG, KS
    HO, C
    RUDERMAN, M
    [J]. ASTROPHYSICAL JOURNAL, 1986, 300 (02) : 500 - 521
  • [10] ELECTROMAGNETIC CASCADES IN PULSARS
    DAUGHERTY, JK
    HARDING, AK
    [J]. ASTROPHYSICAL JOURNAL, 1982, 252 (01) : 337 - 347