dc.creator | Congiu, E. | |
dc.creator | Kharb, P. | |
dc.creator | Tarchi, A. | |
dc.creator | Berton, M. | |
dc.creator | Caccianiga, A. | |
dc.creator | Chen, S. | |
dc.creator | Crepaldi, L. | |
dc.creator | Di Mille, F. | |
dc.creator | Järvelä, E. | |
dc.creator | Jarvis, M. E. | |
dc.creator | Mura, G. la | |
dc.creator | Vietri, A. | |
dc.date.accessioned | 2021-06-16T19:50:48Z | |
dc.date.available | 2021-06-16T19:50:48Z | |
dc.date.created | 2021-06-16T19:50:48Z | |
dc.date.issued | 2020 | |
dc.identifier | MNRAS 499, 3149–3157 (2020) | |
dc.identifier | 10.1093/mnras/staa3024 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/180154 | |
dc.description.abstract | In this paper, we present the analysis of new radio and optical observations of the narrow-line Seyfert 1 galaxy Mrk 783. 1.6 GHz
observations performed with the e-MERLIN interferometer confirm the presence of the diffuse emission previously observed.
The Very Long Baseline Array (VLBA) also detects the nuclear source both at 1.6 GHz (L band) and 5 GHz (C band). While
the L-band image shows only an unresolved core, the C-band image shows the presence of a partially resolved structure at
a position angle of 60◦. The brightness temperature of the emission in both bands (>106 K) suggests that it is a pc-scale jet
produced by the active galactic nucleus. The relatively steep VLBA spectral index (αVLBA = 0.63 ± 0.03) is consistent with the
presence of optically thin emission on milliarcsecond scales. Finally, we investigated two possible scenarios that can result in
the misalignment between the kpc and pc-scale radio structure detected in the galaxy. We also analysed the optical morphology
of the galaxy, which suggests that Mrk 783 underwent a merging in relatively recent times. | |
dc.language | en | |
dc.publisher | Oxford University Press | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.source | Monthly Notices of the Royal Astronomical Society | |
dc.subject | Galaxies: individual: Mrk 783 | |
dc.subject | Galaxies: Seyfert | |
dc.subject | Radio continuum: galaxies | |
dc.title | The radio structure of the narrow-line Seyfert 1 Mrk 783 with VLBA and e-MERLIN | |
dc.type | Artículo de revista | |