Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Annals of the New York Academy of Sciences
759 (1995), S. 0
ISSN:
1749-6632
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Natural Sciences in General
Notes:
The X-ray emission of SS 433 is considered to be generated in the vicinity of the base of the jet, at a distance probably two orders of magnitude or more smaller than the optical emission region1. It is therefore expected that the detailed study in X-ray would reveal the clearer information of the “central monster” who creates the antiparallel pair of the relativistic precessing jets. With the high resolution spectroscopic capability of ASCA2, the thermal and dynamical properties of the X-ray emission region of the jets is starting to be studied in detail. Here we present the diagnosis of the jet using the X-ray emission lines observed in the early phase of the ASCA mission. The temperature at the base of the jet (∼ 10 keV) and the kinetic luminosity (∼ 1039erg s−1) were derived.We also report the result of the recent contemporaneous spectroscopic observations of SS 433 in X-ray and optical bands. The precession phase at the observation in October – November 1994 was significantly advanced compared with the prediction of the earlier model parameters3. It can be interpreted either as a result of random walk of the precession phase, or due to the secular decrease of the precession period.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1749-6632.1995.tb17553.x
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