Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25001
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Karoff, Christoffer | en_US |
dc.contributor.author | Albrecht, Simon | en_US |
dc.contributor.author | BONANNO, Alfio Maurizio | en_US |
dc.contributor.author | Faurschou Knudsen, Mads | en_US |
dc.date.accessioned | 2020-05-20T13:11:38Z | - |
dc.date.available | 2020-05-20T13:11:38Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25001 | - |
dc.description.abstract | It has been hypothesized that the presence of closely orbiting giant planets is associated with enhanced chromospheric emission of their host stars. The main cause for such a relation would likely be enhanced dynamo action induced by the planet. We present measurements of chromospheric emission in 234 planet candidate systems from the Kepler mission. This ensemble includes 37 systems with giant-planet candidates, which show a clear emission enhancement. The enhancement, however, disappears when systems that are also identified as eclipsing binary candidates are removed from the ensemble. This suggests that a large fraction of the giant-planet candidate systems with chromospheric emission stronger than the Sun are not giant-planet systems, but false positives. Such false-positive systems could be tidally interacting binaries with strong chromospheric emission. This hypothesis is supported by an analysis of 188 eclipsing binary candidates that show increasing chromospheric emission as function of decreasing orbital period. | en_US |
dc.language.iso | eng | en_US |
dc.title | Chromospheric Emission of Planet Candidate Host Stars: A Way to Identify False Positives | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/2041-8205/830/1/L7 | en_US |
dc.identifier.scopus | 2-s2.0-84991583857 | en_US |
dc.identifier.isi | 000401603000001 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/2041-8205/830/1/L7/meta | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 830 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L7 | 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 | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...830L...7K | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | 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. Catania | - |
crisitem.author.orcid | 0000-0003-3175-9776 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Karoff_2016_ApJL_830_L7.pdf | PDF editoriale | 261.61 kB | Adobe PDF | View/Open |
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