Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27569
DC Field | Value | Language |
---|---|---|
dc.contributor.author | France, Kevin | en_US |
dc.contributor.author | Arulanantham, Nicole | en_US |
dc.contributor.author | Fossati, Luca | en_US |
dc.contributor.author | LANZA, Antonino Francesco | en_US |
dc.contributor.author | Linsky, Jeffrey L. | en_US |
dc.contributor.author | Redfield, Seth | en_US |
dc.contributor.author | Loyd, Robert | en_US |
dc.contributor.author | Schneider, Christian | en_US |
dc.date.accessioned | 2020-10-05T09:15:28Z | - |
dc.date.available | 2020-10-05T09:15:28Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27569 | - |
dc.description.abstract | Exoplanet magnetic fields have proven notoriously hard to detect, despite theoretical predictions of substantial magnetic field strengths on close-in extrasolar giant planets. It has been suggested that stellar and planetary magnetic field interactions can manifest as enhanced stellar activity relative to nominal age-rotation-activity relationships for main sequence stars or enhanced activity on stars hosting short-period massive planets. In a recent study of M and K dwarf exoplanet host stars, we demonstrated a significant correlation between the relative luminosity in high-temperature stellar emission lines (L(ion)/L_Bol) and the “star-planet interaction strength”, M_plan/a_plan. Here, we expand on that work with a survey of G, K, and M dwarf exoplanet host stars obtained in two recent far-ultraviolet spectroscopic programs with the Hubble Space Telescope. We have measured the relative luminosities of stellar lines C II, Si III, Si IV, and N V (formation temperatures from 30,000 - 150,000 K) in a sample of ~60 exoplanet host stars and an additional ~40 dwarf stars without known planets. We present results on star-planet interaction signals as a function of spectral type and line formation temperature, as well as a statistical comparison of stars with and without planets. | en_US |
dc.language.iso | eng | en_US |
dc.title | Chromospheric and Transition Region Emission Properties of G, K, and M dwarf Exoplanet Host Stars | en_US |
dc.type | Conference abstract | - |
dc.identifier.url | http://live-aas-web.pantheonsite.io/sites/default/files/2019-10/aas_231_abstracts.pdf | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 231 | en_US |
dc.relation.firstpage | 349.06 | en_US |
dc.relation.numberofpages | 1 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.note | Abstract comunicazione al congresso dell'American Astronomical Society. Nessun testo del lavoro viene pubblicato oltre l'abstract sopra riportato. | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | USA | en_US |
dc.relation.ispartofbook | American Astronomical Society Meeting Abstracts #231 | en_US |
dc.type.invited | no | en_US |
dc.relation.conferencename | 231st Meeting of the American Astronomical Society | en_US |
dc.relation.conferenceplace | Washington, DC | en_US |
dc.relation.conferencedate | January 2018 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.type.miur | 274 Abstract in Atti di convegno | - |
dc.identifier.adsbibcode | 2018AAS...23134906F | 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::PE9_2 Planetary systems sciences | 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 | Conference abstract | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.orcid | 0000-0001-5928-7251 | - |
Appears in Collections: | 3.02 Abstract in Atti di convegno |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
AAS_meeting_2018.pdf | preprint | 49.07 kB | Adobe PDF | View/Open |
Page view(s)
69
checked on Apr 19, 2024
Download(s)
12
checked on Apr 19, 2024
Google ScholarTM
Check
Items in DSpace are published in Open Access, unless otherwise indicated.