Simultaneous view of the FRB~180301 with FAST and NICER during a bursting phase

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dc.contributor.authorLaha, Sibasish
dc.contributor.authorYounes, George
dc.contributor.authorWadiasingh, Zorawar
dc.contributor.authorWang, Bo-Jun
dc.contributor.authorLee, Ke-Jia
dc.contributor.authorKlingler, Noel
dc.contributor.authorZhang, Bing
dc.contributor.authorXu, Heng
dc.contributor.authorZhang, Chin-Feng
dc.contributor.authorZhu, Wei-Wei
dc.contributor.authorGhosh, Ritesh
dc.contributor.authorLien, Amy
dc.contributor.authorTroja, Eleonora
dc.contributor.authorCenko, S. Bradley
dc.contributor.authorOates, Samantha
dc.contributor.authorNicholl, Matt
dc.contributor.authorBecerra, Josefa G.
dc.contributor.authorMeyer, Eileen
dc.contributor.authorParsotan, Tyler
dc.date.accessioned2022-04-19T16:40:53Z
dc.date.available2022-04-19T16:40:53Z
dc.date.issued2022-03-14
dc.description.abstractFRB180301 is one of the most actively repeating fast radio bursts (FRBs) which has shown polarization angle changes in its radio burst emission, an indication for their likely origin in the magnetosphere of a highly-magnetized neutron star. We carried out a multi-wavelength campaign with the FAST radio telescope and NICER X-ray observatory to investigate any possible X-ray emission temporally coincident with the bright radio bursts. The observations took place on 2021 March 4, 9 and 19. We detected five bright radio bursts with FAST, four of which were strictly simultaneous with the NICER observations. The peak flux-density of the radio bursts ranged between 28 − 105 mJy, the burst fluence between 27 − 170 mJy-ms, and the burst durations between 1.7 − 12.3 ms. The radio bursts from FRB 180301 exhibited complex time domain structure, and subpulses were detected in individual bursts, with no significant circular polarisation. The linear degree of polarisation in L-band reduced significantly compared to the 2019 observations. We do not detect any X-ray emission in excess of the background during the 5 ms, 10 ms, 100 ms, 1 sec and 100 sec time intervals at/around the radio-burst barycenter-corrected arrival times, at a > 5σ confidence level. The 5σ upper limits on the X-ray a) persistent flux is < 7.64 × 10⁻¹² erg cm⁻² s⁻¹, equivalent to LX < 2.50 × 10⁴⁵ erg s⁻¹ and b) 5 ms fluence is < 2 × 10⁻¹¹ erg cm⁻², at the radio burst regions. Using the 5 ms X-ray fluence upper limit, we can estimate the radio efficiency ηR/X ≡ LRadio/LX−ray & 10⁻⁸. The derived upper limit on ηR/X is consistent with both magnetospheric models and synchrotron maser models involving relativistic shocks.en_US
dc.description.sponsorshipThe material is based upon work supported by NASA under award number 80GSFC21M0002. MN is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 948381) and by a Fellowship from the Alan Turing Institute.en_US
dc.description.urihttps://arxiv.org/abs/2203.07465en_US
dc.format.extent13 pagesen_US
dc.genrejournal articlesen_US
dc.genrepreprintsen_US
dc.identifierdoi:10.13016/m2oovz-ztxb
dc.identifier.urihttps://arxiv.org/abs/2203.07465
dc.identifier.urihttps://doi.org/10.48550/arXiv.2203.07465
dc.identifier.urihttp://hdl.handle.net/11603/24554
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Physics Department
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleSimultaneous view of the FRB~180301 with FAST and NICER during a bursting phaseen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0003-2714-0487en_US
dcterms.creatorhttps://orcid.org/0000-0002-7676-9962en_US

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