Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/27768
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Dai, S. | en_US |
dc.contributor.author | Johnston, S. | en_US |
dc.contributor.author | Weltevrede, P. | en_US |
dc.contributor.author | Kerr, M. | en_US |
dc.contributor.author | BURGAY, MARTA | en_US |
dc.contributor.author | Esposito, P. | en_US |
dc.contributor.author | ISRAEL, Gian Luca | en_US |
dc.contributor.author | POSSENTI, ANDREA | en_US |
dc.contributor.author | Rea, N. | en_US |
dc.contributor.author | Sarkissian, J. | en_US |
dc.date.accessioned | 2020-10-13T14:22:46Z | - |
dc.date.available | 2020-10-13T14:22:46Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27768 | - |
dc.description.abstract | We present the spin frequency and profile evolution of the radio pulsar J1119 - 6127 following magnetar-like X-ray bursts from the system in 2016 July. Using data from the Parkes radio telescope, we observe a smooth and fast spin-down process subsequent to the X-ray bursts resulting in a net change in the pulsar rotational frequency of ∆ν ≈ -4 × 10<SUP>-4</SUP> Hz. During the transition, a net spin-down rate increase of ∆ \dot{ν }≈ -1× 10^{-10} Hz s<SUP>-1</SUP> is observed, followed by a return of \dot{ν } to its original value. In addition, the radio pulsations disappeared after the X-ray bursts and reappeared about two weeks later with the flux density at 1.4 GHz increased by a factor of 5. The flux density then decreased and undershot the normal flux density followed by a slow recovery back to normal. The pulsar's integrated profile underwent dramatic and short-term changes in total intensity, polarization, and position angle. Despite the complex evolution, we observe correlations between the spin-down rate, pulse profile shape, and radio flux density. Strong single pulses have been detected after the X-ray bursts with their energy distributions evolving with time. The peculiar but smooth spin frequency evolution of PSR J1119-6127 accompanied by systematic pulse profile and flux density changes are most likely to be a result of either reconfiguration of the surface magnetic fields or particle winds triggered by the X-ray bursts. The recovery of spin-down rate and pulse profile to normal provides us the best case to study the connection between high magnetic-field pulsars and magnetars. | en_US |
dc.language.iso | eng | en_US |
dc.title | Peculiar spin frequency and radio profile evolution of PSR J1119-6127 following magnetar-like X-ray bursts | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty2063 | en_US |
dc.identifier.scopus | 2-s2.0-85055181092 | en_US |
dc.identifier.isi | 000449616200054 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article-abstract/480/3/3584/5063582 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 480 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3584 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | 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 | 2018MNRAS.480.3584D | 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 | 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. Cagliari | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0002-8265-4344 | - |
crisitem.author.orcid | 0000-0001-5480-6438 | - |
crisitem.author.orcid | 0000-0001-5902-3731 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
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