Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32467
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kong, Ling-Da | en_US |
dc.contributor.author | Zhang, Shu | en_US |
dc.contributor.author | Ji, Long | en_US |
dc.contributor.author | Doroshenko, Victor | en_US |
dc.contributor.author | Santangelo, Andrea | en_US |
dc.contributor.author | ORLANDINI, MAURO | en_US |
dc.contributor.author | Frontera, Filippo | en_US |
dc.contributor.author | Li, Jian | en_US |
dc.contributor.author | Chen, Yu-Peng | en_US |
dc.contributor.author | Wang, Peng-Ju | en_US |
dc.contributor.author | Chang, Zhi | en_US |
dc.contributor.author | Qu, Jin-Lu | en_US |
dc.contributor.author | Zhang, Shuang-Nan | en_US |
dc.date.accessioned | 2022-07-13T13:24:29Z | - |
dc.date.available | 2022-07-13T13:24:29Z | - |
dc.date.issued | 2022 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32467 | - |
dc.description.abstract | We have performed phase-resolved spectral analysis of the accreting pulsar 1A 0535+262 based on observations of Insight-HXMT during the 2020 type II outburst of the source. We focus on the two-dimensional dependence of the cyclotron resonance scattering features (CRSFs) along the outburst time and at different phases. The fundamental CRSF line (f-CRSF) shows different time- and phase-dependent behaviors. At higher luminosity, the phase profile of the f-CRSF energy changes from a single peak to double peaks, with the transition occurring at MJD 59185. On the contrary, the first harmonic CRSF (first CRSF) at ∼100 keV is only detected within a narrow phase range (0.8−1.0) accompanied by a shallow f-CRSF line. Based on these results, we speculate that when the source enters the supercritical regime, the higher accretion column height can significantly enhance the harmonic line at a narrow phase through an "anti-pencil" beam at a higher energy band. At the same time, it will also affect the behavior of the fundamental line. | en_US |
dc.language.iso | eng | en_US |
dc.title | Phase-dependent Evolution within the Large Luminosity Range of 1A 0535+262 Observed by Insight-HXMT during 2020 Giant Outburst | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-4357/ac6e66 | en_US |
dc.identifier.isi | 000813912400001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-4357/ac6e66 | en_US |
dc.identifier.url | https://arxiv.org/pdf/2204.11222 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 932 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 106 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 13 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | CHN | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2022ApJ...932..106K | 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.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-0946-3151 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Kong_2022_ApJ_932_106.pdf | PDF editoriale | 1.17 MB | Adobe PDF | View/Open |
2204.11222.pdf | Postprint | 1.26 MB | Adobe PDF | View/Open |
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