Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/31984
Titolo: | Daily variability at milli-arcsecond scales in the radio quiet NLSy1 Mrk 110 | Autori: | PANESSA, Francesca Miguel Perez-Torres Lorena Hernandez-Garcia Piergiorgio Casella GIROLETTI, MARCELLO ORIENTI, Monica Ranieri D. Baldi Loredana Bassani FIOCCHI, MARIATERESA Fabio La Franca MALIZIA, ANGELA Ian McHardy NICASTRO, FABRIZIO PIRO, LUIGI Federico Vincentelli David R. A. Williams Pietro Ubertini |
Data pubblicazione: | 2021 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Abstract: | The origin of radio emission in the majority of Active Galactic Nuclei (AGN) is still poorly understood. Various competing mechanisms are likely involved in the production of radio emission and precise diagnostic tools are needed to disentangle them, of which variability is among the most powerful. For the first time, we show evidence for significant radio variability at 5 GHz at milli-arcsecond scales on days to weeks time scales in the highly accreting and extremely radio-quiet (RQ) Narrow Line Seyfert 1 (NLSy1) Mrk110. The simultaneous Swift/XRT light curve indicates stronger soft than hard X-ray variability. The short-term radio variability suggests that the GHz emitting region has a size smaller than ~180 Schwarzschild radii. The high brightness temperature and the radio and X-ray variability rule out a star-formation and a disc wind origin. Synchrotron emission from a low-power jet and/or an outflowing corona is then favoured. | URI: | http://hdl.handle.net/20.500.12386/31984 | URL: | http://arxiv.org/abs/2111.12595v2 https://academic.oup.com/mnras/article-abstract/510/1/718/6458365?redirectedFrom=fulltext&login=true |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stab3426 | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
2111.12595.pdf | postprint | 493.14 kB | Adobe PDF | Visualizza/apri |
Page view(s)
42
controllato il 24-apr-2024
Download(s)
12
controllato il 24-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.