Detection of 33.8 millisecond X-ray pulsations in SAX J0635+0533

被引:30
作者
Cusumano, G
Maccarone, MC
Nicastro, L
Sacco, B
Kaaret, P
机构
[1] CNR, Ist Fis Cosm Con Applicaz Informat, I-90146 Palermo, Italy
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
关键词
gamma rays : observations; pulsars : general; stars : individual (2EG J0635+0521; SAX J0635+0533); stars : neutron; X-rays : stars;
D O I
10.1086/312413
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We revisited the BeppoSAX observation of SAX J0635+0533, which was suggested as a possible counterpart to the gamma-ray source 2EG J0635+0521. We have discovered a 33.8 ms pulsation from the source and derived an improved position, consistent with the location of the Be star proposed as a binary companion. We interpret the periodicity as the spin period of a neutron star in a binary system with a Be companion.
引用
收藏
页码:L25 / L28
页数:4
相关论文
共 15 条
  • [1] BENDAT R, 1971, RANDOM DATA ANAL MEA
  • [2] The medium-energy concentrator spectrometer on board the BeppoSAX X-ray astronomy satellite
    Boella, G
    Chiappetti, L
    Conti, G
    Cusumano, G
    DelSordo, S
    LaRosa, G
    Maccarone, MC
    Mineo, T
    Molendi, S
    Re, S
    Sacco, B
    Tripiciano, M
    [J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02): : 327 - 340
  • [3] BeppoSAX, the wide band mission for X-ray astronomy
    Boella, G
    Butler, RC
    Perola, GC
    Piro, L
    Scarsi, L
    Bleeker, JAM
    [J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02): : 299 - 307
  • [4] BUCCHERI R, 1983, ASTRON ASTROPHYS, V128, P245
  • [5] ILLARIONOV AF, 1975, ASTRON ASTROPHYS, V39, P185
  • [6] Discovery of a hard X-ray source SAX J0635+0533, in the error box of the gamma-ray source 2EG 0635+0521
    Kaaret, P
    Piraino, S
    Halpern, J
    Eracleous, M
    [J]. ASTROPHYSICAL JOURNAL, 1999, 523 (01) : 197 - 202
  • [7] X-RAY-DETECTION OF PSR B1259-63 AT PERIASTRON
    KASPI, VM
    TAVANI, M
    NAGASE, F
    HIRAYAMA, M
    HOSHINO, M
    AOKI, T
    KAWAI, N
    ARONS, J
    [J]. ASTROPHYSICAL JOURNAL, 1995, 453 (01) : 424 - 432
  • [8] Merck M., 1996, AAS, V120, P465
  • [9] NICASTRO L, 1998, NUCL PHYS B, V69, P257
  • [10] The low-energy concentrator spectrometer on-board the BeppoSAX X-ray astronomy satellite
    Parmar, AN
    Martin, DDE
    Bavdaz, M
    Favata, F
    Kuulkers, E
    Vacanti, G
    Lammers, U
    Peacock, A
    Taylor, BG
    [J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1997, 122 (02): : 309 - 326