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Article: A multiwavelength search for black widow and redback counterparts of candidate γ-ray millisecond pulsars

TitleA multiwavelength search for black widow and redback counterparts of candidate γ-ray millisecond pulsars
Authors
Keywordsstars: neutron
pulsars: general
gamma-rays: general
X-rays: binaries
Issue Date2020
PublisherRoyal Astronomical Society. The Journal's web site is located at http://www.oxfordjournals.org/our_journals/mnras/
Citation
Monthly Notices of the Royal Astronomical Society, 2020, v. 497 n. 4, p. 5364-5382 How to Cite?
AbstractThe wealth of detections of millisecond pulsars (MSPs) in γ-rays by Fermi has spurred searches for these objects among the several unidentified γ-ray sources. Interesting targets are a sub-class of binary MSPs, dubbed ‘black widows’ (BWs) and ‘redbacks’ (RBs), which are in orbit with low-mass non-degenerate companions fully or partially ablated by irradiation from the MSP wind. These systems can be easily missed in radio pulsar surveys owing to the eclipse of the radio signal by the intra-binary plasma from the ablated companion star photosphere, making them better targets for multiwavelength observations. We used optical and X-ray data from public data bases to carry out a systematic investigation of all the unidentified γ-ray sources from the Fermi Large Area Telescope Third Source Catalog, which have been pre-selected as likely MSP candidates according to a machine-learning technique analysis. We tested our procedure by recovering known binary BW/RB identifications and searched for new ones, finding two possible candidates. At the same time, we investigated previously proposed BW/RB identifications and we ruled out one of them based upon the updated γ-ray source coordinates.
Persistent Identifierhttp://hdl.handle.net/10722/294657
ISSN
2023 Impact Factor: 4.7
2023 SCImago Journal Rankings: 1.621
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBraglia, C-
dc.contributor.authorMignani, RP-
dc.contributor.authorBelfiore, A-
dc.contributor.authorMarelli, M-
dc.contributor.authorIsrael, GL-
dc.contributor.authorNovara, G-
dc.contributor.authorDe Luca, A-
dc.contributor.authorTiengo, A-
dc.contributor.authorSaz Parkinson, PM-
dc.date.accessioned2020-12-08T07:40:04Z-
dc.date.available2020-12-08T07:40:04Z-
dc.date.issued2020-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2020, v. 497 n. 4, p. 5364-5382-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/294657-
dc.description.abstractThe wealth of detections of millisecond pulsars (MSPs) in γ-rays by Fermi has spurred searches for these objects among the several unidentified γ-ray sources. Interesting targets are a sub-class of binary MSPs, dubbed ‘black widows’ (BWs) and ‘redbacks’ (RBs), which are in orbit with low-mass non-degenerate companions fully or partially ablated by irradiation from the MSP wind. These systems can be easily missed in radio pulsar surveys owing to the eclipse of the radio signal by the intra-binary plasma from the ablated companion star photosphere, making them better targets for multiwavelength observations. We used optical and X-ray data from public data bases to carry out a systematic investigation of all the unidentified γ-ray sources from the Fermi Large Area Telescope Third Source Catalog, which have been pre-selected as likely MSP candidates according to a machine-learning technique analysis. We tested our procedure by recovering known binary BW/RB identifications and searched for new ones, finding two possible candidates. At the same time, we investigated previously proposed BW/RB identifications and we ruled out one of them based upon the updated γ-ray source coordinates.-
dc.languageeng-
dc.publisherRoyal Astronomical Society. The Journal's web site is located at http://www.oxfordjournals.org/our_journals/mnras/-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectstars: neutron-
dc.subjectpulsars: general-
dc.subjectgamma-rays: general-
dc.subjectX-rays: binaries-
dc.titleA multiwavelength search for black widow and redback counterparts of candidate γ-ray millisecond pulsars-
dc.typeArticle-
dc.identifier.emailSaz Parkinson, PM: pablosp@hku.hk-
dc.identifier.authoritySaz Parkinson, PM=rp01803-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1093/mnras/staa2339-
dc.identifier.scopuseid_2-s2.0-85097399555-
dc.identifier.hkuros320426-
dc.identifier.volume497-
dc.identifier.issue4-
dc.identifier.spage5364-
dc.identifier.epage5382-
dc.identifier.isiWOS:000587739300097-
dc.publisher.placeUnited Kingdom-

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