Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27277
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Bernardini, F. | en_US |
dc.contributor.author | DE MARTINO, Domitilla | en_US |
dc.contributor.author | Mukai, K. | en_US |
dc.contributor.author | Russell, D. M. | en_US |
dc.contributor.author | Falanga, M. | en_US |
dc.contributor.author | MASETTI, NICOLA | en_US |
dc.contributor.author | Ferrigno, C. | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.date.accessioned | 2020-09-10T10:26:45Z | - |
dc.date.available | 2020-09-10T10:26:45Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27277 | - |
dc.description.abstract | We present timing and spectral analysis of a sample of seven hard X-ray selected cataclysmic variable candidates based on simultaneous X-ray and optical observations collected with XMM-Newton, complemented with Swift/BAT and INTEGRAL /IBIS hard X-ray data and ground-based optical photometry. For six sources, X-ray pulsations are detected for the first time in the range of ∼296-6098 s, identifying them as members of the magnetic class. Swift J0927.7-6945, Swift J0958.0-4208, Swift J1701.3-4304, Swift J2113.5+5422 and possibly PBC J0801.2-4625 are intermediate polars (IPs), while Swift J0706.8+0325 is a short (1.7 h) orbital period polar, the 11th hard X-ray-selected identified so far. X-ray orbital modulation is also observed in Swift J0927.7-6945 (5.2 h) and Swift J2113.5+5422 (4.1 h). Swift J1701.3-4304 is discovered as the longest orbital period (12.8 h) deep eclipsing IP. The spectra of the magnetic systems reveal optically thin multitemperature emission between 0.2 and 60 keV. Energy-dependent spin pulses and the orbital modulation in Swift J0927.7-6945 and Swift J2113.5+5422 are due to intervening local high-density absorbing material (N<SUB>H</SUB> ∼ 10<SUP>22 - 23</SUP> cm<SUP>-2</SUP>). In Swift J0958.0-4208 and Swift J1701.3-4304, a soft X-ray blackbody (kT ∼ 50 and ∼80 eV) is detected, adding them to the growing group of `soft' IPs. White dwarf masses are determined in the range of ∼ 0.58-1.18 M<SUB>☉</SUB>, indicating massive accreting primaries in five of them. Most sources accrete at rates lower than the expected secular value for their orbital period. Formerly proposed as a long-period (9.4 h) nova-like CV, Swift J0746.3-1608 shows peculiar spectrum and light curves suggesting either an atypical low-luminosity CV or a low-mass X-ray binary. | en_US |
dc.language.iso | eng | en_US |
dc.title | Broad-band characteristics of seven new hard X-ray selected cataclysmic variables | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx1494 | en_US |
dc.identifier.scopus | 2-s2.0-85026320425 | en_US |
dc.identifier.isi | 000408207600074 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/470/4/4815/3906588 | en_US |
dc.identifier.url | https://arxiv.org/pdf/1706.04005.pdf | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 470 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 4815 | en_US |
dc.relation.lastpage | 4837 | en_US |
dc.relation.numberofpages | 23 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 8 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | USA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017MNRAS.470.4815B | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | 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. Capodimonte | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-5069-4202 | - |
crisitem.author.orcid | 0000-0001-9487-7740 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
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