Real-time evolution of a large-scale relativistic jet

Context. Astrophysical jets are ubiquitous in the Universe on all scales, but their large-scale dynamics and evolution in time are hard to observe since they usually develop at a very slow pace. Aims. We aim to obtain the first observational proof of the expected large-scale evolution and interactio...

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Detalles Bibliográficos
Autores principales: Martí, Josep, Luque Escamilla, Pedro L., Romero, Gustavo Esteban, Sánchez Sutil, Juan R., Muñoz Arjonilla, Álvaro J.
Formato: Articulo Contribucion a revista
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Astronómicas
Galaxies: jets
ISM: jets and outflows
Stars: individual: GRS 1758,258
Stars: jets
X-rays: binaries
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86696
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86696
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Galaxies: jets
ISM: jets and outflows
Stars: individual: GRS 1758,258
Stars: jets
X-rays: binaries
spellingShingle Ciencias Astronómicas
Galaxies: jets
ISM: jets and outflows
Stars: individual: GRS 1758,258
Stars: jets
X-rays: binaries
Martí, Josep
Luque Escamilla, Pedro L.
Romero, Gustavo Esteban
Sánchez Sutil, Juan R.
Muñoz Arjonilla, Álvaro J.
Real-time evolution of a large-scale relativistic jet
topic_facet Ciencias Astronómicas
Galaxies: jets
ISM: jets and outflows
Stars: individual: GRS 1758,258
Stars: jets
X-rays: binaries
description Context. Astrophysical jets are ubiquitous in the Universe on all scales, but their large-scale dynamics and evolution in time are hard to observe since they usually develop at a very slow pace. Aims. We aim to obtain the first observational proof of the expected large-scale evolution and interaction with the environment in an astrophysical jet. Only jets from microquasars offer a chance to witness the real-time, full-jet evolution within a human lifetime, since they combine a "short", few parsec length with relativistic velocities. Methods. The methodology of this work is based on a systematic recalibraton of interferometric radio observations of microquasars available in public archives. In particular, radio observations of the microquasar GRS 1758-258 over less than two decades have provided the most striking results. Results. Significant morphological variations in the extended jet structure of GRS 1758-258 are reported here that were previously missed. Its northern radio lobe underwent a major morphological variation that rendered the hotspot undetectable in 2001 and reappeared again in the following years. The reported changes confirm the Galactic nature of the source. We tentatively interpret them in terms of the growth of instabilities in the jet flow. There is also evidence of surrounding cocoon. These results can provide a testbed for models accounting for the evolution of jets and their interaction with the environment.
format Articulo
Contribucion a revista
author Martí, Josep
Luque Escamilla, Pedro L.
Romero, Gustavo Esteban
Sánchez Sutil, Juan R.
Muñoz Arjonilla, Álvaro J.
author_facet Martí, Josep
Luque Escamilla, Pedro L.
Romero, Gustavo Esteban
Sánchez Sutil, Juan R.
Muñoz Arjonilla, Álvaro J.
author_sort Martí, Josep
title Real-time evolution of a large-scale relativistic jet
title_short Real-time evolution of a large-scale relativistic jet
title_full Real-time evolution of a large-scale relativistic jet
title_fullStr Real-time evolution of a large-scale relativistic jet
title_full_unstemmed Real-time evolution of a large-scale relativistic jet
title_sort real-time evolution of a large-scale relativistic jet
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/86696
work_keys_str_mv AT martijosep realtimeevolutionofalargescalerelativisticjet
AT luqueescamillapedrol realtimeevolutionofalargescalerelativisticjet
AT romerogustavoesteban realtimeevolutionofalargescalerelativisticjet
AT sanchezsutiljuanr realtimeevolutionofalargescalerelativisticjet
AT munozarjonillaalvaroj realtimeevolutionofalargescalerelativisticjet
bdutipo_str Repositorios
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