1. RRI Digital Repository
  2. 04. Astronomy and Astrophysics
  3. Research Papers (A&A)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6531
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBell, M.E.-
dc.contributor.authorMurphy, Tara-
dc.contributor.authorDeshpande, A.A.-
dc.contributor.authorPrabu, T.-
dc.contributor.authorUdaya Shankar, N.-
dc.contributor.authorSrivani, K.S.-
dc.contributor.authorSubrahmanyan, Ravi-
dc.contributor.author+35 Co-authors-
dc.date.accessioned2016-12-23T05:35:13Z-
dc.date.available2016-12-23T05:35:13Z-
dc.date.issued2016-09-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2016, Vol. 461, p 908-921en_US
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 - (online)-
dc.identifier.urihttp://hdl.handle.net/2289/6531-
dc.descriptionOpen Accessen_US
dc.description.abstractWe present 154 MHz Murchison Widefield Array imaging observations and variability information for a sample of pulsars. Over the declination range −80° < δ < 10°, we detect 17 known pulsars with mean flux density greater than 0.3 Jy. We explore the variability properties of this sample on time-scales of minutes to years. For three of these pulsars, PSR J0953+0755, PSR J0437−4715, and PSR J0630−2834, we observe interstellar scintillation and variability on time-scales of greater than 2 min. One further pulsar, PSR J0034−0721, showed significant variability, the physical origins of which are difficult to determine. The dynamic spectra for PSR J0953+0755 and PSR J0437−4715 show discrete time and frequency structure consistent with diffractive interstellar scintillation and we present the scintillation bandwidth and time-scales from these observations. The remaining pulsars within our sample were statistically non-variable. We also explore the spectral properties of this sample and find spectral curvature in pulsars PSR J0835−4510, PSR J1752−2806, and PSR J0437−4715.en_US
dc.language.isoenen_US
dc.publisherOxford University Press for The Royal Astronomical Societyen_US
dc.relation.urihttp://adsabs.harvard.edu/abs/2016MNRAS.461..908Ben_US
dc.relation.urihttp://arxiv.org/abs/1605.09100en_US
dc.relation.urihttp://dx.doi.org/ 10.1093/mnras/stw1293en_US
dc.rights2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Societyen_US
dc.titleTime-domain and spectral properties of pulsars at 154 MHzen_US
dc.typeArticleen_US
Appears in Collections:Research Papers (A&A)

Files in This Item:
File Description SizeFormat 
2016_MNRAS_461_908.pdf
  Restricted Access		Open Access1.21 MBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.