Abstract
view Abstract Citations (25) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Infrared study of the Crab Pulsar : the "shoulder" pulse and the 3.45micron pulse profile. Middleditch, J. ; Pennypacker, C. ; Burns, M. S. Abstract Infrared measurements of the Crab pulsar with the NASA IRTF 3.0 m telescope show that the spectrum of the main pulse turns downward for wavelengths longer than 3 microns. The 'shoulder' pulse discovered by Pennypacker (1981) is measured in the 0.9-2.4 microns region, but disappears at 3.5 microns. This pulse rise from 0 to 20 percent of the height of the main pulse within 1 to 2 ms after the main pulse peak and decays with a 4 to 5 ms time constant. Excess infrared flux also appears after the interpulse. The main peak itself may be narrower at 3.45 microns than in the optical to 2.2 microns band. Publication: The Astrophysical Journal Pub Date: October 1983 DOI: 10.1086/161365 Bibcode: 1983ApJ...273..261M Keywords: Crab Nebula; Infrared Astronomy; Pulsars; Astronomical Models; Fourier Analysis; Light Curve; Telescopes; Astrophysics full text sources ADS | data products SIMBAD (2)
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