Is there a coherent radiation component in the radio emission of SS 433?

Details Is there a coherent radiation component in the radio emission of SS 433? Is there a coherent radiation component in the radio emission of SS 433?

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196..185r&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. 185-190.

Astronomy and Astrophysics

Astrophysics

2

Coherent Electromagnetic Radiation, Eclipsing Binary Stars, Radio Emission, Stellar Radiation, X Ray Sources, Power Spectra, Pulsars, Stellar Spectra, Time Series Analysis, Variability

Scientific paper

The authors have obtained total power time-series data on SS433 at a radio frequency of 400 MHz using the Green Bank 92-m telescope and the Berkeley Fast Pulsar Search Machine in a dynamic spectrum mode. The data consist of 32-channel spectra over 1.25 MHz, collected every second. The principal motivation for the observations was to search for a component with rapid intensity variations first reported by Bonsignori-Facondi and Braccesi (1986). The authors report the absence of any rapid variations with upper limits at the 99% confidence level between 60 and 100 mJy for time-scales ranging from 4 s to 16 s. Thus, if any intrinsic variability exists, its time-scale is less than 4 s.

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