dc.contributor.author | Forbrich, Jan | |
dc.contributor.author | Berger, Edo | |
dc.contributor.author | Reid, Mark Jonathan | |
dc.date.accessioned | 2017-03-02T19:48:58Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Forbrich, Jan, Edo Berger, and Mark J. Reid. 2013. An Astrometric Search for a Sub-stellar Companion of the M8.5 Dwarf TVLM 513–46546 Using Very Long Baseline Interferometry. The Astrophysical Journal 777, no. 1: 70. doi:10.1088/0004-637x/777/1/70. | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:30496609 | |
dc.description.abstract | We conducted multi-epoch VLBI observations to search for astrometric reflex motion caused by a sub-stellar companion of the M8.5 dwarf TVLM 513–46546. The observations yield an absolute parallax corresponding to a distance of 10.762±0.027 pc and a proper motion of 78.09± 0.17 mas yr−1. From the absence of significant residual motion, we place an upper limit to any reflex motion caused by a companion, extending the parameter space covered by previous near-infrared direct-imaging searches. By covering different orbital periods, the data exclude a phase-space of companion masses and orbital periods ranging from 3.8 Mjup with an orbital radius of ∼ 0.05 AU (orbital period of 16 days) to 0.3 Mjup with an orbital radius of ∼ 0.7 AU (orbital period of 710 days). | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IOP Publishing | en_US |
dc.relation.isversionof | doi:10.1088/0004-637x/777/1/70 | en_US |
dc.relation.hasversion | https://arxiv.org/abs/1307.4117 | en_US |
dash.license | OAP | |
dc.subject | radio continuum: stars | en_US |
dc.subject | stars: low-mass | en_US |
dc.subject | brown dwarfs | en_US |
dc.subject | planetary systems | en_US |
dc.title | An Astrometric Search for a Sub-stellar Companion of the M8.5 Dwarf TVLM 513–46546 Using Very Long Baseline Interferometry | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | The Astrophysical Journal | en_US |
dash.depositing.author | Berger, Edo | |
dc.date.available | 2017-03-02T19:48:58Z | |
dc.identifier.doi | 10.1088/0004-637x/777/1/70 | * |
dash.contributor.affiliated | Reid, Mark | |
dash.contributor.affiliated | Berger, Edo | |