FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2902144479> ?p ?o ?g. }

• W2902144479 endingPage "A131" @default.
• W2902144479 startingPage "A131" @default.
• W2902144479 abstract "Stellar activity is one of the primary limitations to the detection of low-mass exoplanets using the radial-velocity (RV) technique. We propose to estimate the variations in shape of the CCF by fitting a Skew Normal (SN) density which, unlike the commonly employed Normal density, includes a skewness parameter to capture the asymmetry of the CCF induced by stellar activity and the convective blueshift. The performances of the proposed method are compared to the commonly employed Normal density using both simulations and real observations, with different levels of activity and signal-to-noise ratio. When considering real observations, the correlation between the RV and the asymmetry of the CCF and between the RV and the width of the CCF are stronger when using the parameters estimated with the SN density rather than the ones obtained with the commonly employed Normal density. Using the proposed SN approach, the uncertainties estimated on the RV defined as the median of the SN are on average 10% smaller than the uncertainties calculated on the mean of the Normal. The uncertainties estimated on the asymmetry parameter of the SN are on average 15% smaller than the uncertainties measured on the Bisector Inverse Slope Span (BIS SPAN), which is the commonly used parameter to evaluate the asymmetry of the CCF. We also propose a new model to account for stellar activity when fitting a planetary signal to RV data. Based on simple simulations, we were able to demonstrate that this new model improves the planetary detection limits by 12% compared to the model commonly used to account for stellar activity. The SN density is a better model than the Normal density for characterizing the CCF since the correlations used to probe stellar activity are stronger and the uncertainties of the RV estimate and the asymmetry of the CCF are both smaller." @default.
• W2902144479 created "2018-12-11" @default.
• W2902144479 creator A5002040439 @default.
• W2902144479 creator A5051770899 @default.
• W2902144479 creator A5084594696 @default.
• W2902144479 date "2019-02-01" @default.
• W2902144479 modified "2023-09-26" @default.
• W2902144479 title "Measuring precise radial velocities and cross-correlation function line-profile variations using a Skew Normal density" @default.
• W2902144479 cites W1883251007 @default.
• W2902144479 cites W1974618482 @default.
• W2902144479 cites W1975189402 @default.
• W2902144479 cites W1986316936 @default.
• W2902144479 cites W1992599695 @default.
• W2902144479 cites W1999762477 @default.
• W2902144479 cites W2039003808 @default.
• W2902144479 cites W2056162032 @default.
• W2902144479 cites W2060999063 @default.
• W2902144479 cites W2079641157 @default.
• W2902144479 cites W2083772753 @default.
• W2902144479 cites W2087070363 @default.
• W2902144479 cites W2088072491 @default.
• W2902144479 cites W2096799072 @default.
• W2902144479 cites W2101167036 @default.
• W2902144479 cites W2132427241 @default.
• W2902144479 cites W2134181193 @default.
• W2902144479 cites W2135634498 @default.
• W2902144479 cites W2156739165 @default.
• W2902144479 cites W2169324725 @default.
• W2902144479 cites W2256578114 @default.
• W2902144479 cites W2277208279 @default.
• W2902144479 cites W2297162316 @default.
• W2902144479 cites W2583557750 @default.
• W2902144479 cites W3098012332 @default.
• W2902144479 cites W3098283500 @default.
• W2902144479 cites W3099657827 @default.
• W2902144479 cites W3100805953 @default.
• W2902144479 cites W3101310883 @default.
• W2902144479 cites W3101396829 @default.
• W2902144479 cites W3101772800 @default.
• W2902144479 cites W3103970831 @default.
• W2902144479 cites W4213040489 @default.
• W2902144479 cites W4289237005 @default.
• W2902144479 cites W4292309267 @default.
• W2902144479 cites W4292331632 @default.
• W2902144479 cites W4292511619 @default.
• W2902144479 cites W4292953523 @default.
• W2902144479 cites W4292953735 @default.
• W2902144479 cites W4292954813 @default.
• W2902144479 cites W4292955386 @default.
• W2902144479 cites W4292956610 @default.
• W2902144479 cites W4292956617 @default.
• W2902144479 cites W4296502198 @default.
• W2902144479 cites W621293842 @default.
• W2902144479 doi "https://doi.org/10.1051/0004-6361/201833895" @default.
• W2902144479 hasPublicationYear "2019" @default.
• W2902144479 type Work @default.
• W2902144479 sameAs 2902144479 @default.
• W2902144479 citedByCount "10" @default.
• W2902144479 countsByYear W29021444792019 @default.
• W2902144479 countsByYear W29021444792020 @default.
• W2902144479 countsByYear W29021444792021 @default.
• W2902144479 countsByYear W29021444792022 @default.
• W2902144479 countsByYear W29021444792023 @default.
• W2902144479 crossrefType "journal-article" @default.
• W2902144479 hasAuthorship W2902144479A5002040439 @default.
• W2902144479 hasAuthorship W2902144479A5051770899 @default.
• W2902144479 hasAuthorship W2902144479A5084594696 @default.
• W2902144479 hasBestOaLocation W29021444791 @default.
• W2902144479 hasConcept C105795698 @default.
• W2902144479 hasConcept C121332964 @default.
• W2902144479 hasConcept C122342681 @default.
• W2902144479 hasConcept C1276947 @default.
• W2902144479 hasConcept C198352243 @default.
• W2902144479 hasConcept C199360897 @default.
• W2902144479 hasConcept C2524010 @default.
• W2902144479 hasConcept C2779843651 @default.
• W2902144479 hasConcept C30475298 @default.
• W2902144479 hasConcept C33923547 @default.
• W2902144479 hasConcept C38976095 @default.
• W2902144479 hasConcept C41008148 @default.
• W2902144479 hasConcept C43711488 @default.
• W2902144479 hasConcept C44870925 @default.
• W2902144479 hasConcept C62520636 @default.
• W2902144479 hasConceptScore W2902144479C105795698 @default.
• W2902144479 hasConceptScore W2902144479C121332964 @default.
• W2902144479 hasConceptScore W2902144479C122342681 @default.
• W2902144479 hasConceptScore W2902144479C1276947 @default.
• W2902144479 hasConceptScore W2902144479C198352243 @default.
• W2902144479 hasConceptScore W2902144479C199360897 @default.
• W2902144479 hasConceptScore W2902144479C2524010 @default.
• W2902144479 hasConceptScore W2902144479C2779843651 @default.
• W2902144479 hasConceptScore W2902144479C30475298 @default.
• W2902144479 hasConceptScore W2902144479C33923547 @default.
• W2902144479 hasConceptScore W2902144479C38976095 @default.
• W2902144479 hasConceptScore W2902144479C41008148 @default.
• W2902144479 hasConceptScore W2902144479C43711488 @default.
• W2902144479 hasConceptScore W2902144479C44870925 @default.
• W2902144479 hasConceptScore W2902144479C62520636 @default.

• next