Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31383
DC Field | Value | Language |
---|---|---|
dc.contributor.author | FIOCCHI, MARIATERESA | en_US |
dc.contributor.author | ONORI, FRANCESCA | en_US |
dc.contributor.author | BAZZANO, ANGELA | en_US |
dc.contributor.author | Bird, A. J. | en_US |
dc.contributor.author | Bodaghee, A. | en_US |
dc.contributor.author | Charles, P. A. | en_US |
dc.contributor.author | Lepingwell, V. A. | en_US |
dc.contributor.author | Malizia, A. | en_US |
dc.contributor.author | Masetti, N. | en_US |
dc.contributor.author | Natalucci, L. | en_US |
dc.contributor.author | Ubertini, P. | en_US |
dc.date.accessioned | 2022-02-11T11:13:57Z | - |
dc.date.available | 2022-02-11T11:13:57Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31383 | - |
dc.description.abstract | We report on a recent bright outburst from the new X-ray binary transient MAXI J1631-479, observed in January 2019. In particular, we present the 30-200 keV analysis of spectral transitions observed with INTEGRAL/IBIS during its Galactic plane monitoring program. In the MAXI and BAT monitoring period, we observed two different spectral transitions between the high/soft and low/hard states. The INTEGRAL spectrum from data taken soon before the second transition is best described by a Comptonized thermal component with a temperature of kT<SUB>e</SUB> ∼ 30 keV and a high-luminosity value of L_{2-200 keV}∼ 3× 10^{38} erg<SUP>-1</SUP> (assuming a distance of 8 kpc). During the second transition, the source shows a hard, power-law spectrum. The lack of high energy cut-off indicates that the hard X-ray spectrum from MAXI J1631-479 is due to a non-thermal emission. Inverse Compton scattering of soft X-ray photons from a non-thermal or hybrid thermal/non-thermal electron distribution can explain the observed X-ray spectrum although a contribution to the hard X-ray emission from a jet cannot be determined at this stage. The outburst evolution in the hardness-intensity diagram, the spectral characteristics, and the rise and decay times of the outburst are suggesting that this system is a black hole candidate. | en_US |
dc.language.iso | eng | en_US |
dc.title | Evolution of MAXI J1631-479 during the January 2019 outburst observed by INTEGRAL/IBIS | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa068 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/492/3/3657/5700724?login=true | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 492 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3657 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 11 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | GBR | 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 | 2020MNRAS.492.3657F | 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 | O.A. Abruzzo | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | IAPS Roma | - |
crisitem.author.orcid | 0000-0001-5697-6019 | - |
crisitem.author.orcid | 0000-0001-6286-1744 | - |
crisitem.author.orcid | 0000-0002-2017-4396 | - |
crisitem.author.orcid | 0000-0002-6558-1163 | - |
crisitem.author.orcid | 0000-0001-9487-7740 | - |
crisitem.author.orcid | 0000-0002-6601-9543 | - |
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 | |
---|---|---|---|---|
staa068.pdf | Pdf editoriale | 547.2 kB | Adobe PDF | View/Open |
2001.03034.pdf | preprint | 447.74 kB | Adobe PDF | View/Open |
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