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dc.contributor.authorLoinard, Laurent
dc.contributor.authorThompson, Mark
dc.contributor.authorHoare, Melvin
dc.contributor.authorLangevelde, Huib Jan van
dc.contributor.authorEllingsen, Simon
dc.contributor.authorBrunthaler, Andreas
dc.contributor.authorForbrich, Jan
dc.contributor.authorRygl, Kazi L. J.
dc.contributor.authorRodriguez, Luis F.
dc.contributor.authorMioduszewski, Amy J.
dc.contributor.authorTorres-Lopez, Rosa M.
dc.contributor.authorDzib, Sergio A.
dc.contributor.authorOrtiz-Leon, Gisela N.
dc.contributor.authorBourke, Tyler L.
dc.contributor.authorGreen, James A.
dc.date.accessioned2017-09-15T14:15:33Z
dc.date.available2017-09-15T14:15:33Z
dc.date.issued2014-12-19
dc.identifier.citationLoinard , L , Thompson , M , Hoare , M , Langevelde , H J V , Ellingsen , S , Brunthaler , A , Forbrich , J , Rygl , K L J , Rodriguez , L F , Mioduszewski , A J , Torres-Lopez , R M , Dzib , S A , Ortiz-Leon , G N , Bourke , T L & Green , J A 2014 , Tomography of Galactic star-forming regions and spiral arms with the Square Kilometer Array . in Advancing Astrophysics with the Square Kilometre Array . Proceedings of Science (PoS) , Advancing Astrophysics with the Square Kilometre Array , Sicily , Italy , 9/06/14 .
dc.identifier.citationconference
dc.identifier.otherPURE: 12457183
dc.identifier.otherPURE UUID: e338afa0-4b80-4655-ab26-a62f7156ebe4
dc.identifier.otherArXiv: http://arxiv.org/abs/1412.6481v1
dc.identifier.otherORCID: /0000-0001-8694-4966/work/62751230
dc.identifier.urihttp://hdl.handle.net/2299/19436
dc.description© 2014 Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence https://creativecommons.org/licenses/by-nc-sa/3.0/us/. Published by Proceedings of Science http://pos.sissa.it/
dc.description.abstractVery Long Baseline Interferometry (VLBI) at radio wavelengths can provide astrometry accurate to 10 micro-arcseconds or better (i.e. better than the target GAIA accuracy) without being limited by dust obscuration. This means that unlike GAIA, VLBI can be applied to star-forming regions independently of their internal and line-of-sight extinction. Low-mass young stellar objects (particularly T Tauri stars) are often non-thermal compact radio emitters, ideal for astrometric VLBI radio continuum experiments. Existing observations for nearby regions (e.g. Taurus, Ophiuchus, or Orion) demonstrate that VLBI astrometry of such active T Tauri stars enables the reconstruction of both the regions' 3D structure (through parallax measurements) and their internal kinematics (through proper motions, combined with radial velocities). The extraordinary sensitivity of the SKA telescope will enable similar "tomographic mappings" to be extended to regions located several kpc from Earth, in particular to nearby spiral arm segments. This will have important implications for Galactic science, galactic dynamics and spiral structure theories.en
dc.format.extent8
dc.language.isoeng
dc.publisherProceedings of Science (PoS)
dc.relation.ispartofAdvancing Astrophysics with the Square Kilometre Array
dc.subjectastro-ph.SR
dc.subjectastro-ph.GA
dc.titleTomography of Galactic star-forming regions and spiral arms with the Square Kilometer Arrayen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.identifier.urlhttps://pos.sissa.it/215/
rioxxterms.versionVoR
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue


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