Matches in SemOpenAlex for { <https://semopenalex.org/work/W2801480355> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2801480355 abstract "The study of exoplanetary atmospheres epitomises a continuous quest for higher accuracy measurements. Systematic effects and noise associated with both the stellar activity and the instrument can bias the results and thus limit the precision of the analysis. To reach a high photometric and spectroscopic precision, it is therefore essential to correct for these effects. We present here a novel non-parametric approach, named Gaussian Process method for Star Characterization (GPSC), to remove effects of stellar activity and instrumental systematics on planetary signals, with a view to preserve the atmospheric contribution which can be as small as 10$^{-4}$ or even 10$^{-5}$ the flux of the star. We applied our method to data recorded with Kepler, focussing on a sample of lightcurves with different effective temperatures and flux modulations. We found that GPSC can very effectively correct for the short and long term stellar activity and instrumental systematics. Additionally we run the GPSC on both real and simulated transit data, finding transit depths consistent with the original ones. Consequently we considered 10 hours of continuous observations: daily, every other day and weekly, and we used the GPSC to reconstruct the lightcurves. When data are recorded more frequently than once every five days we found that our approach is able to extrapolate the stellar flux at the 10$^{-4}$ level compared to the full stellar flux. These results show a great potential of GPSC to isolate the relevant astrophysical signal and achieve the precision needed for the correction of short and long term stellar activity." @default.
- W2801480355 created "2018-05-17" @default.
- W2801480355 creator A5022203760 @default.
- W2801480355 creator A5068049945 @default.
- W2801480355 creator A5078898595 @default.
- W2801480355 date "2013-04-24" @default.
- W2801480355 modified "2023-09-24" @default.
- W2801480355 title "Detrending the long-term stellar activity and the systematics of the Kepler data with a non-parametric approach" @default.
- W2801480355 hasPublicationYear "2013" @default.
- W2801480355 type Work @default.
- W2801480355 sameAs 2801480355 @default.
- W2801480355 citedByCount "0" @default.
- W2801480355 crossrefType "posted-content" @default.
- W2801480355 hasAuthorship W2801480355A5022203760 @default.
- W2801480355 hasAuthorship W2801480355A5068049945 @default.
- W2801480355 hasAuthorship W2801480355A5078898595 @default.
- W2801480355 hasConcept C105795698 @default.
- W2801480355 hasConcept C117251300 @default.
- W2801480355 hasConcept C121332964 @default.
- W2801480355 hasConcept C1276947 @default.
- W2801480355 hasConcept C150846664 @default.
- W2801480355 hasConcept C17744445 @default.
- W2801480355 hasConcept C191897082 @default.
- W2801480355 hasConcept C192562407 @default.
- W2801480355 hasConcept C199539241 @default.
- W2801480355 hasConcept C207963374 @default.
- W2801480355 hasConcept C2778022998 @default.
- W2801480355 hasConcept C33923547 @default.
- W2801480355 hasConcept C44870925 @default.
- W2801480355 hasConcept C539828613 @default.
- W2801480355 hasConcept C61797465 @default.
- W2801480355 hasConcept C68709404 @default.
- W2801480355 hasConceptScore W2801480355C105795698 @default.
- W2801480355 hasConceptScore W2801480355C117251300 @default.
- W2801480355 hasConceptScore W2801480355C121332964 @default.
- W2801480355 hasConceptScore W2801480355C1276947 @default.
- W2801480355 hasConceptScore W2801480355C150846664 @default.
- W2801480355 hasConceptScore W2801480355C17744445 @default.
- W2801480355 hasConceptScore W2801480355C191897082 @default.
- W2801480355 hasConceptScore W2801480355C192562407 @default.
- W2801480355 hasConceptScore W2801480355C199539241 @default.
- W2801480355 hasConceptScore W2801480355C207963374 @default.
- W2801480355 hasConceptScore W2801480355C2778022998 @default.
- W2801480355 hasConceptScore W2801480355C33923547 @default.
- W2801480355 hasConceptScore W2801480355C44870925 @default.
- W2801480355 hasConceptScore W2801480355C539828613 @default.
- W2801480355 hasConceptScore W2801480355C61797465 @default.
- W2801480355 hasConceptScore W2801480355C68709404 @default.
- W2801480355 hasLocation W28014803551 @default.
- W2801480355 hasOpenAccess W2801480355 @default.
- W2801480355 hasPrimaryLocation W28014803551 @default.
- W2801480355 hasRelatedWork W1876950794 @default.
- W2801480355 hasRelatedWork W2048603501 @default.
- W2801480355 hasRelatedWork W2056545135 @default.
- W2801480355 hasRelatedWork W2098655244 @default.
- W2801480355 hasRelatedWork W2103862754 @default.
- W2801480355 hasRelatedWork W2171816114 @default.
- W2801480355 hasRelatedWork W2472445438 @default.
- W2801480355 hasRelatedWork W2562327876 @default.
- W2801480355 hasRelatedWork W2570035963 @default.
- W2801480355 hasRelatedWork W2767505813 @default.
- W2801480355 hasRelatedWork W2772817572 @default.
- W2801480355 hasRelatedWork W2952067700 @default.
- W2801480355 hasRelatedWork W2970535157 @default.
- W2801480355 hasRelatedWork W3012066253 @default.
- W2801480355 hasRelatedWork W3086934168 @default.
- W2801480355 hasRelatedWork W3088492978 @default.
- W2801480355 hasRelatedWork W3098201595 @default.
- W2801480355 hasRelatedWork W3099047720 @default.
- W2801480355 hasRelatedWork W3099958273 @default.
- W2801480355 hasRelatedWork W3104823637 @default.
- W2801480355 isParatext "false" @default.
- W2801480355 isRetracted "false" @default.
- W2801480355 magId "2801480355" @default.
- W2801480355 workType "article" @default.