Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/33013
DC Field | Value | Language |
---|---|---|
dc.contributor.author | BEDIN, Luigi | en_US |
dc.contributor.author | Fontanive, C. | en_US |
dc.date.accessioned | 2023-01-23T16:28:22Z | - |
dc.date.available | 2023-01-23T16:28:22Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/33013 | - |
dc.description.abstract | In the second paper of this series, we perfected our method of linking high-precision Hubble Space Telescope astrometry to the high-accuracy Gaia DR2 absolute reference system to overcome the limitations of relative astrometry with narrow-field cameras. Our test case here is the Y brown dwarf WISE J163940.83-684738.6, observed at different epochs spread over a 6-yr time baseline with the Infra-Red channel of the Wide Field Camera 3. We derived significantly improved astrometric parameters compared to previous determinations, finding (μ<SUB>αcos </SUB><SUB>δ</SUB>, μ<SUB>δ</SUB>, ϖ) = (577.21 ± 0.24 mas yr<SUP>-1</SUP>, -3108.39 ± 0.27 mas yr<SUP>-1</SUP>, 210.4 ± 1.8 mas). In particular, our derived absolute parallax (ϖ ) corresponds to a distance of 4.75 ± 0.05 pc for the faint ultracool dwarf. | en_US |
dc.language.iso | eng | en_US |
dc.title | Extending Gaia DR2 with HST narrow-field astrometry - II. Refining the method on WISE J163940.83-684738.6 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/staa540 | en_US |
dc.identifier.scopus | 2-s2.0-85098854942 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/494/2/2068/5775319 | en_US |
dc.identifier.url | http://arxiv.org/abs/2002.09331v1 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 494 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2068 | en_US |
dc.relation.lastpage | 2075 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020MNRAS.494.2068B | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0003-4080-6466 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
staa540.pdf | Pdf editoriale | 2.62 MB | Adobe PDF | View/Open |
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