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dc.contributor.authorKirsten, Franz
dc.contributor.authorVlemmings, W.
dc.contributor.authorCampbell, R.
dc.contributor.authorKramer, M.
dc.contributor.authorChatterjee, S.
dc.date.accessioned2017-01-30T12:30:01Z
dc.date.available2017-01-30T12:30:01Z
dc.date.created2016-02-01T00:47:10Z
dc.date.issued2015
dc.identifier.citationKirsten, F. and Vlemmings, W. and Campbell, R. and Kramer, M. and Chatterjee, S. 2015. Revisiting the birth locations of pulsars B1929+10, B2020+28, and B2021+51. Astronomy and Astrophysics. 577 (A111).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/22228
dc.identifier.doi10.1051/0004-6361/201425562
dc.description.abstract

We present new proper motion and parallax measurements obtained with the European VLBI Network (EVN) at 5GHz for the three isolated pulsars B1929+10, B2020+28, and B2021+51. For B1929+10 we combined our data with earlier VLBI measurements and confirm the robustness of the astrometric parameters of this pulsar. For pulsars B2020+28 and B2021+51 our observations indicate that both stars are almost a factor of two closer to the solar system than previously thought, placing them at a distance of 1.39-0.06+0.05 and 1.25-0.17+ 0.14kpc. Using our new astrometry, we simulated the orbits of all three pulsars in the Galactic potential with the aim to confirm or reject previously proposed birth locations. Our observations ultimately rule out a claimed binary origin of B1929+10 and the runaway star ζ Ophiuchi in Upper Scorpius. A putative common binary origin of B2020+28 and B2021+51 in the Cygnus Superbubble is also very unlikely.

dc.publisherEDP Sciences
dc.titleRevisiting the birth locations of pulsars B1929+10, B2020+28, and B2021+51
dc.typeJournal Article
dcterms.source.volume577
dcterms.source.issn0004-6361
dcterms.source.titleAstronomy and Astrophysics
curtin.note

Reproduced with permission from Astronomy & Astrophysics, © ESO

curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusOpen access


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