Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/32283
Titolo: | Variable oxygen emission from the accretion disk of Mrk 110 | Autori: | Reeves, J. N. Porquet, D. BRAITO, Valentina Grosso, N. Lobban, A. |
Data pubblicazione: | 2021 | Rivista: | ASTRONOMY & ASTROPHYSICS | Numero: | 649 | Da pagina:: | L3 | Abstract: | Six XMM-Newton observations of the bright narrow line Seyfert 1, Mrk 110, from 2004-2020, are presented. The analysis of the grating spectra from the Reflection Grating Spectrometer (RGS) reveals a broad component of the He-like Oxygen (OVII) line, with a full width at half maximum (FWHM) of $15900\pm1800$ km s$^{-1}$ measured in the mean spectrum. The broad OVII line in all six observations can be modelled with a face-on accretion disk profile, where from these profiles the inner radius of the line emission is inferred to lie between about 20-100 gravitational radii from the black hole. The derived inclination angle, of about 10 degrees, is consistent with studies of the optical Broad Line Region in Mrk 110. The line also appears variable and for the first time, a significant correlation is measured between the OVII flux and the continuum flux from both the RGS and EPIC-pn data. Thus the line responds to the continuum, being brightest when the continuum flux is highest, similar to the reported behaviour of the optical HeII line. The density of the line emitting gas is estimated to be $n_{\rm e}\sim10^{14}$ cm$^{-3}$, consistent with an origin in the accretion disk. | URI: | http://hdl.handle.net/20.500.12386/32283 | URL: | http://arxiv.org/abs/2104.14584v1 https://www.aanda.org/articles/aa/full_html/2021/05/aa40953-21/aa40953-21.html |
ISSN: | 0004-6361 | DOI: | 10.1051/0004-6361/202140953 | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
2104.14584.pdf | preprint | 518.84 kB | Adobe PDF | Visualizza/apri |
aa40953-21.pdf | PDF editoriale | 512.14 kB | Adobe PDF | Visualizza/apri |
Page view(s)
47
controllato il 17-lug-2024
Download(s)
17
controllato il 17-lug-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.