Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar

Details Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar

2000-06-06

arxiv.org/abs/astro-ph/0006075v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in the Astrophysical Journal. 10 pages, 3 Tables, 4 Figures

Scientific paper

10.1086/317063

A dedicated stroboscopic device was used to obtain optical spectra of the Crab main-pulse and inter-pulse as well as the spectrum of the underlying nebula when the pulsar is turned off. As the nebular emission is very inhomogeneous, our ability to effectively subtract the nebular background signal is crucial. No spectral lines intrinsic to the pulsar are detected. The main-pulse and the inter-pulse behave as power laws, both with the same de-reddened index Alpha = +0.2 +- 0.1. This value was obtained by subtracting the nebular spectrum at the exact position of the pulsar. The underlying nebula is redder, Alpha = -0.4 +- 0.1. Its emission lines are split into approaching (sim. -1200 km/s) and receding (sim. +600 km/s) components. The strength of emission line components and the flux in nebular continuum vary on arcsec scale. The nebular line and continuum intensities along the N-S slit are given.

Affiliated with

Also associated with

No associations

Rating

Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical Spectrum of Main-, Inter- and Off-pulse Emission from Crab Pulsar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-482232