dc.contributor.author | Forbrich, Jan | |
dc.contributor.author | Dzib, Sergio A. | |
dc.contributor.author | Reid, Mark J. | |
dc.contributor.author | Menten, Karl M. | |
dc.date.accessioned | 2021-01-29T00:08:43Z | |
dc.date.available | 2021-01-29T00:08:43Z | |
dc.date.issued | 2021-01-04 | |
dc.identifier.citation | Forbrich , J , Dzib , S A , Reid , M J & Menten , K M 2021 , ' A VLBA Survey of radio stars in the Orion Nebula Cluster: I. The nonthermal radio population ' , The Astrophysical Journal , vol. 906 , no. 1 , 23 . https://doi.org/10.3847/1538-4357/abc68e | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2011.09329v1 | |
dc.identifier.other | ORCID: /0000-0001-8694-4966/work/87789597 | |
dc.identifier.uri | http://hdl.handle.net/2299/23796 | |
dc.description | Funding Information: We thank the anonymous referee for helpful and constructive comments that lead to an improved presentation of our results. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. Publisher Copyright: © 2021. The American Astronomical Society. | |
dc.description.abstract | We present first results of a four-epoch VLBA survey for nonthermal emission toward all 556 compact radio sources previously identified in a deep VLA survey of the Orion Nebula Cluster (ONC). We identify VLBA counterparts toward an unprecedented 123 sources. Of these, 41 do not have X-ray counterparts, of which 34 also do not display near-infrared counterparts. Since these cannot be explained by extragalactic background sources, this suggests a component of the ONC population of young stellar objects that are too deeply embedded for even X-rays to be detectable. We find pervasive variability and detect even most of the highest-S/N sources in only one out of four epochs. Neither a negative spectral index nor extreme variability in the VLA data is a good predictor of a VLBA detection. | en |
dc.format.extent | 193544 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | Astronomy and Astrophysics | |
dc.subject | Space and Planetary Science | |
dc.title | A VLBA Survey of radio stars in the Orion Nebula Cluster: I. The nonthermal radio population | en |
dc.contributor.institution | Centre for Astrophysics Research | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85099239820&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.3847/1538-4357/abc68e | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |