Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/28232
Titolo: | Overdensity of galaxies in the environment of quasar pairs | Autori: | Sandrinelli, A. Falomo, R. Treves, A. Scarpa, R. USLENGHI, MICHELA |
Data pubblicazione: | 2018 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 474 | Fascicolo: | 4 | Da pagina:: | 4925 | Abstract: | We report on a study of the galaxy environments of low redshift physical quasars pairs. We selected 20 pairs having projected separation < 0.5 Mpc and difference of systemic velocity < 800 km s<SUP>-1</SUP>. Using Sloan Digital Sky Survey images, we evaluated the galaxy overdensity around these quasars in pairs and then compare it with that of a sample of isolated quasars with same redshift and luminosity. It is found that on average there is a systematic larger overdensity of galaxies around quasars in pairs with respect to that of isolated quasars. This may represent a significant link between nuclear activity and galaxy environment. However, at odds with that, the closest quasar pairs seem to inhabit poorer environments. Implications of present results and perspectives for future work are briefly discussed. | URI: | http://hdl.handle.net/20.500.12386/28232 | URL: | https://academic.oup.com/mnras/article/474/4/4925/4582901 https://arxiv.org/pdf/1710.10759.pdf |
ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stx2822 | Bibcode ADS: | 2018MNRAS.474.4925S | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
stx2822.pdf | Pdf editoriale | 1.07 MB | Adobe PDF | Visualizza/apri |
Page view(s)
41
controllato il 23-apr-2024
Download(s)
10
controllato il 23-apr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.