ar X iv : a st ro - p h / 95 06 13 8 v 1 2 9 Ju n 19 95 Galactic jet sources and the AGN connection
نویسنده
چکیده
In order to further test our hypothesis that jets and disk around compact accreting objects are symbiotic features we investigate the newly discovered superluminal galactic radio jets GRS 1915+105 and GRO J1655-40 and the two famous galactic radio jets 1E1740-2942 and SS 433 within the framework of our couple jet/disk model developed initially for active galactic nuclei (AGN) and the galactic center source Sgr A*. By comparing the “disk” and radio core luminosity of those galactic jet sources with our model prediction we can show that they can easily be understood as AGN-like jets where the accretion power onto a central compact object is scaled down by several orders of magnitude. The total power of the jets must be comparable to the disk luminosity at least for the superluminal sources. To broaden our view we also shortly discuss the situation in other galactic flat spectrum radio source associated with compact objects – the X-ray binaries Cyg X-1, Cyg X-2, Cyg X-3 and Sco X-1 – where a jet origin has been proposed earlier on theoretical grounds. In an disk/radio luminosity their radio cores also fall within our model prediction for scaled down radio loud and radio weak AGN-jets. Taking all sources together and comparing their Ldisk/radio ratio we find an indication for a similar radio loud/radio weak dichotomy as found earlier for quasar radio cores, however, a larger number of galactic jet sources is needed to confirm this trend.
منابع مشابه
ar X iv : a st ro - p h / 06 11 11 9 v 1 3 N ov 2 00 6 AGN jet models
In this review I concentrate exclusively on models for the large-scale structure created by jet flows in AGN. I briefly mention models for the evolution and emission of these objects and how they can also be applied to microquasars. While in radio-loud AGN we can directly use the radio synchrotron emission of these structures, we need to find other detection methods in microquasars. Where possi...
متن کاملar X iv : a st ro - p h / 96 06 17 9 v 1 2 9 Ju n 19 96 LECTURE 1 Coalescence of Binary Neutron Stars
متن کامل
ar X iv : a st ro - p h / 97 06 24 4 v 1 2 4 Ju n 19 97 GRS 1915 + 105 : Flares , QPOs and other events at 15 GHz
Monitoring with the Ryle Telescope at 15 GHz of the Galactic X-ray transient source GRS 1915+105 has revealed a remarkable range of rapid and extended flares which appear to be related to the X-ray emission as recorded by the RXTE all-sky monitor. Quasi-periodic oscillations in the range 20 – 40 min have been found and are probably related to oscillations in the soft X-ray flux.
متن کاملar X iv : a st ro - p h / 06 06 33 3 v 1 1 4 Ju n 20 06 On the fraction of X - ray obscured quasars in the local universe
Recent wide area hard X-ray and soft Gamma ray surveys have shown that the fraction of X-ray obscured AGNs in the local universe significantly decreases with intrinsic luminosity. In this letter we point out that two correction have to be made to the samples: 1) radio loud AGNs have to be excluded since their X-ray emission might be dominated by the jet component; 2) Compton thick sources have ...
متن کاملar X iv : a st ro - p h / 99 06 35 8 v 1 2 3 Ju n 19 99 Helical motions in the jet of blazar 1156 + 295
The blazar 1156+295 was observed by VLBA and EVN + MERLIN at 5 GHz in June 1996 and February 1997 respectively. The results show that the jet of the source has structural oscillations on the milliarcsecond scale and turns through a large angle to the direction of the arcsecond-scale extension. A helical jet model can explain most of the observed properties of the radio structure in 1156+295.
متن کامل