Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29549
DC Field | Value | Language |
---|---|---|
dc.contributor.author | LOTTI, Simone | en_US |
dc.contributor.author | NATALUCCI, LORENZO | en_US |
dc.contributor.author | Mori, Kaya | en_US |
dc.contributor.author | Baganoff, Frederick K. | en_US |
dc.contributor.author | Boggs, Steven E. | en_US |
dc.contributor.author | Christensen, Finn E. | en_US |
dc.contributor.author | Craig, William W. | en_US |
dc.contributor.author | Hailey, Charles J. | en_US |
dc.contributor.author | Harrison, Fiona A. | en_US |
dc.contributor.author | Hong, Jaesub | en_US |
dc.contributor.author | Krivonos, Roman A. | en_US |
dc.contributor.author | Rahoui, Farid | en_US |
dc.contributor.author | Stern, Daniel | en_US |
dc.contributor.author | Tomsick, John A. | en_US |
dc.contributor.author | Zhang, Shuo | en_US |
dc.contributor.author | Zhang, William W. | en_US |
dc.date.accessioned | 2021-01-07T13:32:27Z | - |
dc.date.available | 2021-01-07T13:32:27Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29549 | - |
dc.description.abstract | We report on the results of NuSTAR and XMM-Newton observations of the persistent X-ray source 1E1743.1-2843, located in the Galactic Center region. The source was observed between 2012 September and October by NuSTAR and XMM-Newton, providing almost simultaneous observations in the hard and soft X-ray bands. The high X-ray luminosity points to the presence of an accreting compact object. We analyze the possibilities of this accreting compact object being either a neutron star (NS) or a black hole, and conclude that the joint XMM-Newton and NuSTAR spectrum from 0.3 to 40 keV fits a blackbody spectrum with {kT}∼ 1.8 {keV} emitted from a hot spot or an equatorial strip on an NS surface. This spectrum is thermally Comptonized by electrons with {{kT}}<SUB>e</SUB>∼ 4.6 {keV}. Accepting this NS hypothesis, we probe the low-mass X-ray binary (LMXB) or high-mass X-ray binary (HMXB) nature of the source. While the lack of Type-I bursts can be explained in the LMXB scenario, the absence of pulsations in the 2 mHz-49 Hz frequency range, the lack of eclipses and of an IR companion, and the lack of a {K}<SUB>α </SUB> line from neutral or moderately ionized iron strongly disfavor interpreting this source as a HMXB. We therefore conclude that 1E1743.1-2843 is most likely an NS-LMXB located beyond the Galactic Center. There is weak statistical evidence for a soft X-ray excess which may indicate thermal emission from an accretion disk. However, the disk normalization remains unconstrained due to the high hydrogen column density ({N}<SUB>{{H</SUB>}}∼ 1.6× {10}<SUP>23</SUP> {{cm}}<SUP>-2</SUP>). | en_US |
dc.language.iso | eng | en_US |
dc.title | NuSTAR and XMM-Newton Observations of 1E1743.1-2843: Indications of a Neutron Star LMXB Nature of the Compact Object | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/822/1/57 | en_US |
dc.identifier.scopus | 2-s2.0-84968883524 | en_US |
dc.identifier.isi | 000377154100057 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/822/1/57 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 822 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 57 | en_US |
dc.type.referee | REF_1 | en_US |
dc.contributor.country | ITA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...822...57L | 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 | IAPS Roma | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.orcid | 0000-0002-3088-1561 | - |
crisitem.author.orcid | 0000-0002-6601-9543 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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NuSTAR and XMM-Newton observations of the 1E1743.1-2843 source.pdf | pdf editoriale | 1.74 MB | Adobe PDF | View/Open |
1603.02016.pdf | preprint | 1.86 MB | Adobe PDF | View/Open |
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