Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26272
DC Field | Value | Language |
---|---|---|
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | Esposito, P. | en_US |
dc.contributor.author | RODRIGUEZ CASTILLO, Guillermo Andres | en_US |
dc.contributor.author | SIDOLI, Lara | en_US |
dc.date.accessioned | 2020-07-01T14:00:49Z | - |
dc.date.available | 2020-07-01T14:00:49Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26272 | - |
dc.description.abstract | We report on the discovery of 41 new pulsating sources in the data of the Chandra Advanced CCD Imaging Spectrometer, which is sensitive to X-ray photons in the 0.3-10 keV band. The archival data of the first 15 yr of Chandra observations were retrieved and analysed by means of fast Fourier transforms, employing a peak-detection algorithm able to screen candidate signals in an automatic fashion. We carried out the search for new X-ray pulsators in light curves with more than 50 photons, for a total of about 190 000 light curves out of about 430 000 extracted. With these numbers, the ChAndra Timing Survey at Brera And Roma astronomical observatories (CATS @ BAR) - as we called the project - represents the largest ever systematic search for coherent signals in the classic X-ray band. More than 50 per cent of the signals were confirmed by further Chandra (for those sources with two or more pointings), XMM-Newton or ROSAT data. The period distribution of the new X-ray pulsators above ∼2000 s resembles that of cataclysmic variables, while there is a paucity of sources with shorter period and low fluxes. Since there is not an obvious bias against these detections, a possible interpretation is in terms of a magnetic gating mechanism in accreting neutron stars. Finally, we note that CATS @ BAR is a living project and the detection algorithm will continue to be routinely applied to the new Chandra data as they become public. Based on the results obtained so far, we expect to discover about three new pulsators every year. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Chandra ACIS Timing Survey Project: glimpsing a sample of faint X-ray pulsators | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stw1897 | en_US |
dc.identifier.scopus | 2-s2.0-84994517537 | en_US |
dc.identifier.isi | 000385231600065 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/462/4/4371/2589814 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 462 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 4371 | en_US |
dc.relation.lastpage | 4385 | en_US |
dc.relation.numberofpages | 15 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 4 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | NLD | 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 | 2016MNRAS.462.4371I | 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. Roma | - |
crisitem.author.dept | IASF Palermo | - |
crisitem.author.dept | IASF Milano | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.author.orcid | 0000-0003-3952-7291 | - |
crisitem.author.orcid | 0000-0001-9705-2883 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stw1897.pdf | Pdf editoriale | 3.71 MB | Adobe PDF | View/Open |
1608.00077.pdf | postprint | 1.28 MB | Adobe PDF | View/Open |
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