Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28543
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kapanadze, S. | en_US |
dc.contributor.author | Kapanadze, B. | en_US |
dc.contributor.author | ROMANO, Patrizia | en_US |
dc.contributor.author | VERCELLONE, STEFANO | en_US |
dc.contributor.author | Tabagari, L. | en_US |
dc.date.accessioned | 2020-11-25T12:33:15Z | - |
dc.date.available | 2020-11-25T12:33:15Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-640X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28543 | - |
dc.description.abstract | We present the results based on the monitoring of the high energy peaked BL Lacertae object 1ES 2344+514 with the satellite Swift during 2005-2015. Our timing study shows that the source was highly variable on longer (weeks-to-months) time-scales with the 0.3-10 keV flux ranging by a factor of 13.3. The flux variability exhibited an erratic character, changing its amplitude and minimum flux level from flare to flare. In some epochs, an X-ray flare was accompanied by enhanced optical-UV activity, although the uncorrelated 0.3-10 keV and lower-frequency variabilities were also often seen. Our target was significantly passive on intra-day timescales compared to other HBLs. The logparabolic distribution of the X-ray emitting electrons and the underlying physical processes seem to be less important for this object in some epochs, since only seven out of the relatively rich spectra showed a curvature, while the majority of the 0.3-10 keV spectra fitted with a simple powerlaw well. The photon index varied on diverse timescales, and the source showed mainly a "harder-when-brighter" spectral evolution. In the hardness ratio-flux plane, 1ES 2344+514 showed both clockwise and counterclockwise loops, indicating a complex spectral evolution with the flux. | en_US |
dc.language.iso | eng | en_US |
dc.title | The swift observations of BL Lacertae object 1ES 2344+514 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1007/s10509-017-3170-4 | en_US |
dc.identifier.scopus | 2-s2.0-85029772811 | en_US |
dc.identifier.isi | 000411111800014 | en_US |
dc.identifier.url | https://link.springer.com/article/10.1007/s10509-017-3170-4 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 362 | en_US |
dc.relation.issue | 10 | en_US |
dc.relation.numberofpages | 14 | en_US |
dc.relation.article | 196 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 5 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTROPHYSICS AND SPACE SCIENCE | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017Ap&SS.362..196K | 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 | reserved | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.orcid | 0000-0003-0258-7469 | - |
crisitem.author.orcid | 0000-0003-1163-1396 | - |
crisitem.journal.journalissn | 0004-640X | - |
crisitem.journal.ance | E016259 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | Existing users please |
---|---|---|---|---|
2017ApSS362_196K.pdf | [Administrators only] | 1.1 MB | Adobe PDF |
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