On the location of the supermassive black hole in CTA102
NAGIOS: RODERIC FUNCIONANDO

On the location of the supermassive black hole in CTA102

DSpace Repository

On the location of the supermassive black hole in CTA102

Show simple item record

dc.contributor.author Fromm, Christian M.
dc.contributor.author Perucho Pla, Manuel
dc.contributor.author Ros Ibarra, Eduardo
dc.contributor.author Savolainen, Tuomas
dc.contributor.author Zensus, J. Anton
dc.date.accessioned 2015-05-15T10:44:11Z
dc.date.available 2015-05-15T10:44:11Z
dc.date.issued 2015
dc.identifier.uri http://hdl.handle.net/10550/43877
dc.description.abstract Context. Relativistic jets in active galactic nuclei are one of the most powerful phenomena in the Universe. They form in the surroundings of the supermassive black holes as a by-product of accretion onto the central black hole in active galaxies. The flow in the jets propagates at velocities close to the speed of light. The distance between the first part of the jet that is visible in radio images (core) and the black hole is still a matter of debate. Aims. Only very-long-baseline interferometry observations resolve the innermost compact regions of the radio jet. These observations can access the jet base, and by combining data at different wavelenghts, address the physical parameters of the outflow from its emission. Methods. We have performed an accurate analysis of the frequency-dependent shift of the VLBI core location for a multi-wavelength set of images of the blazar CTA 102 including data from 6 cm down to 3 mm. Results. The measure of the position of the central black hole, with mass ~10^8.93M_⊙, in the blazar CTA 102 reveals a distance of ~8 × 10^4 gravitational radii to the 86 GHz core, in agreement with similar measures obtained for other blazars and distant radio galaxies, and in contrast with recent results for the case of nearby radio galaxies, which show distances between the black hole and the radio core that can be two orders of magnitude smaller.
dc.language.iso eng
dc.relation.ispartof Astronomy and Astrophysics, 2015, vol. 576, num. A43, p. 1-4
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Fromm, Christian M. Perucho Pla, Manuel Ros Ibarra, Eduardo Savolainen, Tuomas Zensus, J. Anton 2015 On the location of the supermassive black hole in CTA102 Astronomy and Astrophysics 576 A43 1 4
dc.subject Astronomia
dc.subject Astrofísica
dc.title On the location of the supermassive black hole in CTA102
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-05-15T10:44:11Z
dc.identifier.doi http://dx.doi.org/10.1051/0004-6361/201322836
dc.identifier.idgrec 092413

View       (780.2Kb)

This item appears in the following Collection(s)

Show simple item record

Search DSpace

Advanced Search

Browse

Statistics