GEMINGA - RELATIVE PHASES OF THE X-RAY AND GAMMA-RAY PULSES

Authors
BECKER W BRAZIER KTS TRUMPER J
Citation
W. Becker et al., GEMINGA - RELATIVE PHASES OF THE X-RAY AND GAMMA-RAY PULSES, Astronomy and astrophysics, 273(2), 1993, pp. 421-424
Citations number
27
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
273
Issue
2
Year of publication
1993
Pages
421 - 424
Database
ISI
SICI code
0004-6361(1993)273:2<421:G-RPOT>2.0.ZU;2-S
Abstract
Measurements of the relative phases of pulses in separate energy bands provide important information about the geometry of pulsars' emission regions. The lack of pulsars detected in different wave bands has ham pered this approach in the past. Here we present an analysis of ROSAT data on Geminga and give the phase relationship between the X-ray and MeV-GeV lightcurves. The X-ray emission is sinusoidal and maximizes ju st before the second gamma-ray peak.