Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26884
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Sandrinelli, A. | en_US |
dc.contributor.author | COVINO, Stefano | en_US |
dc.contributor.author | Treves, A. | en_US |
dc.contributor.author | Lindfors, E. | en_US |
dc.contributor.author | RAITERI, Claudia Maria | en_US |
dc.contributor.author | Nilsson, K. | en_US |
dc.contributor.author | Takalo, L. O. | en_US |
dc.contributor.author | Reinthal, R. | en_US |
dc.contributor.author | Berdyugin, A. | en_US |
dc.contributor.author | Fallah Ramazani, V. | en_US |
dc.contributor.author | Kadenius, V. | en_US |
dc.contributor.author | Tuominen, T. | en_US |
dc.contributor.author | Kehusmaa, P. | en_US |
dc.contributor.author | Bachev, R. | en_US |
dc.contributor.author | Strigachev, A. | en_US |
dc.date.accessioned | 2020-08-27T12:54:51Z | - |
dc.date.available | 2020-08-27T12:54:51Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26884 | - |
dc.description.abstract | We examine the 2008-2016 γ-ray and optical light curves of three bright BL Lac objects, 0716+714, MRK 421, BL Lac, which exhibit large structured variability. We searched for periodicities by using a fully Bayesian approach. For two out of three sources investigated, no significant periodic variability was found. In the case of BL Lac, we detected a periodicity of 680 days. Although the signal related to this is modest, the coincidence of the periods in both gamma and optical bands is indicative of a physical relevance. Taking into consideration previous literature results, possibly related γ-ray and optical periodicities of about one year time scale are proposed in four bright γ-ray blazars out of the ten examined in detail. Compared with results from periodicity search of optical archives of quasars, the presence of quasi-periodicities in blazars may be more frequent by a large factor. This suggests the intriguing possibility that the basic conditions for their observability are related to the relativistic jet in the observer direction, but the overall picture remains uncertain. | en_US |
dc.language.iso | eng | en_US |
dc.title | Gamma-ray and optical oscillations of 0716+714, MRK 421, and BL Lacertae | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201630288 | en_US |
dc.identifier.scopus | 2-s2.0-85017501641 | en_US |
dc.identifier.isi | 000400754000141 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2017/04/aa30288-16/aa30288-16.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 600 | en_US |
dc.relation.firstpage | A132 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017A&A...600A.132S | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation::PE9_10 High energy and particle astronomy – X-rays, cosmic rays, gamma rays, neutrinos | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Torino | - |
crisitem.author.orcid | 0000-0001-9078-5507 | - |
crisitem.author.orcid | 0000-0003-1784-2784 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
aa30288-16.pdf | pdf editoriale | 803.96 kB | Adobe PDF | Visualizza/apri |
Page view(s)
52
controllato il 3-mag-2024
Download(s)
12
controllato il 3-mag-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.