| dc.creator | Romero, Gustavo Esteban | |
| dc.creator | Combi, Jorge Ariel | |
| dc.creator | Vucetich, Héctor | |
| dc.date | 1995 | |
| dc.date | 2022-11-15T13:45:15Z | |
| dc.date.accessioned | 2023-07-15T05:04:28Z | |
| dc.date.available | 2023-07-15T05:04:28Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/145833 | |
| dc.identifier | issn:0004-640X | |
| dc.identifier | issn:1572-946X | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7471987 | |
| dc.description | We present an intrinsic interpretation for the recently reported radio variability in the southern blazar PKS 0521-365. A shockedjet model can account for the quasi-periodical variations in the flux density of the source by means of inhomogeneities in the electron density with a quasi-periodic distribution along a jet in which a relativistic strong shock is propagating. These inhomogeneities are naturally produced by the effects of Kelvin-Helmholtz instabilities in the hypersonic parsec scale jet. The quasi-linear evolution of the polarization position angle can be understood as an effect of the “illumination” of successive cross sections with different mean field orientation or as a consequence of the shock propagation through a turbulent region in the jet. The high brightness temperature problem introduced by the short timescale varibility is solved invocating relativistic boosting with a moderately small viewing angle in agreement with the known structure of the source. In this context, several parameters are estimated. | |
| dc.description | Instituto Argentino de Radioastronomía | |
| dc.description | Facultad de Ciencias Astronómicas y Geofísicas | |
| dc.format | application/pdf | |
| dc.format | 183-204 | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Ciencias Astronómicas | |
| dc.subject | Brightness temperature | |
| dc.subject | Position angle | |
| dc.subject | Shock propagation | |
| dc.subject | Polarization position | |
| dc.subject | Field orientation | |
| dc.title | Rapid variability in the southern blazar PKS 0521-365 | |
| dc.type | Articulo | |
| dc.type | Articulo | |
