HIGH TIME RESOLUTION INFRARED OBSERVATIONS OF THE CRAB-NEBULA PULSAR

被引：13
|
作者：
RANSOM, SM
FAZIO, GG
EIKENBERRY, SS
MIDDLEDITCH, J
KRISTIAN, J
HAYS, K
PENNYPACKER, CR
机构：
[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545
[2] CARNEGIE INST WASHINGTON OBSERV,PASADENA,CA 91101
[3] ROCKWELL INT CORP,CTR SCI,ANAHEIM,CA 92803
[4] UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720
来源：
ASTROPHYSICAL JOURNAL | 1994年 / 431卷 / 01期
关键词：
INSTRUMENTATION; DETECTORS; PULSARS; INDIVIDUAL; (PSR; 0531+21); STARS; NEUTRON;
D O I：
10.1086/187468
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The Crab Nebula pulsar (PSR 0531+21) was observed in the infrared in J (1.2 mum), H (1.6 mum), K (2.2 mum), and a 0.9-2.5 mum band on the Las Campanas 2.5 m and Mount Hopkins 1.2 m telescopes. A new detector was used, called the Solid State Photomultiplier (SSPM), which allowed measurements of unprecedented time resolution (approximately 20-50 mus) in these bands. The infrared pulse profiles are shown to be qualitatively similar to those at ultraviolet and optical wavelengths, but the main pulse widths and the pulse/interpulse separations increase from the ultraviolet to the infrared. These observations are consistent with the predictions of the outer magnetospheric gap models of high-energy pulsar emission. No evidence was found of the infrared ''shoulder'' of the main pulse or the excess infrared flux after the interpulse previously reported.
引用
收藏
页码：L43 / L46
页数：4
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