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Simultaneous absolute timing of the Crab pulsar at radio and optical wavelengths

2008/06/23 by T. Oosterbroek, I. Cognard, Aaron Golden +10
Physics and Astronomy · #Astronomy #Astrophysics #Context (archaeology) #Crab Pulsar #Electromagnetic spectrum #Geology #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Radio Astronomy Observations and Technology #Radio telescope #Superconducting and THz Device Technology #Telescope #Wavelength #astro-ph

paper · pdf · doi:10.1051/0004-6361:200809751

8 pages; accepted for publication in Astronomy and Astrophysics

arxiv created 2008/06/23 · openalex publication_date 2008/06/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Context. The Crab pulsar emits across a large part of the electromagnetic spectrum. Determining the time delay between the emission at different wavelengths will allow to better constrain the site and mechanism of the emission. We have simultaneously observed the Crab Pulsar in the optical with S-Cam, an instrument based on Superconducting Tunneling Junctions (STJs) with μs time resolution and at 2 GHz using the Nançay radio telescope with an instrument doing coherent dedispersion and able to record giant pulses data.

Citations