Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO

Sulis, S.; Lendl, M.; Cegla, H.; Díaz, Luisa Fernanda Rodríguez; Bigot, L.; Grootel, V. Van; Bekkelien, A.; Collier, Cameron, A.; Maxted, P. F. L.; Simon, A. E.; Lovis, C.; Scandariato, G.; Bruno, G.; Nardiello, D.; Bonfanti, A.; Fridlund, M.; Persson, C. M.; Salmon, S.; Sousa, S. G.; Wilson, T. G.; Krenn, A.; Hoyer, S.; Santerne, A.; Ehrenreich, D.; Alibert, Y.; Alonso, R.; Anglada, G.; Bárczy, T.; Navascués, D. Barrado y; Barros, S. C. C.; Baumjohann, W.; Beck, M.; Beck, T.; Benz, W.; Billot, N.; Bonfils, X.; Borsato, L.; Brandeker, A.; Broeg, C.; Cabrera, J.; Charnoz, S.; Damme, C. Corral Van; Csizmadia, Sz.; Davies, M. B.; Deleuil, M.; Deline, A.; Delrez, L.; Demory, B. -O.; Erikson, A.; Fortier, A.; Gandolfi, D.; Gillon, M.; Güdel, M.; Heng, K.; Isaak, K. G.; Kiss, L. L.; Laskar, J.; Étangs, A. Lecavelier des; Magrin, D.; Munari, M.; Nascimbeni, V.; Olofsson, G.; Ottensamer, R.; Pagano, I.; Pallé, E.; Peter, G.; Piotto, G.; Pollacco, D.; Queloz, D.; Ragazzoni, R.; Rando, N.; Rauer, H.; Ribas, I.; Rieder, M.; Santos, N. C.; Ségransan, D.; Smith, Alan M.; Steinberger, M.; Steller, M.; Szabó, Gy. M.; N., Thomas,; Udry, S.; Walton, N. A.; Wolter, D.

doi:10.48550/arxiv.2211.14398

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“…The behaviour of the indicators in Sun-like stars has been studied in Gomes da Silva et al (2011, Gomes da Silva et al (2012), Figueira et al (2013, Santerne et al (2015), Lanza et al (2018), Suárez Mascareño et al (2020. The effect of granulation on RV and photometry has been studied in Sulis et al (2022) with simultaneous CHEOPS and ESPRESSO observations of two stars, of spectral type G and F.…”

Section: B2 Stellar Signalmentioning

confidence: 99%

Statistical Methods for Exoplanet Detection with Radial Velocities

Hara

2023

Annu. Rev. Stat. Appl.

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Exoplanets can be detected with various observational techniques. Among them, the radial velocity (RV) has the key advantages of revealing the architecture of planetary systems and measuring orbital eccentricities and mass. RV observations are poised to play a key role in the detection and characterization of Earth twins. However, the detection of such small planets is not yet possible due to very complex, temporally correlated instrumental and astrophysical stochastic signals. Furthermore, exploring the large parameter space of RV models exhaustively and efficiently presents difficulties. In this review, we frame RV data analysis as a problem of detection and parameter estimation in unevenly sampled, multivariate time series. The objective of this review is two-fold: to introduce the motivation, methodological challenges, and numerical challenges of RV data analysis to nonspecialists, and to unify the existing advanced approaches in order to identify areas for improvement. Expected final online publication date for the Annual Review of Statistics and Its Application, Volume 10 is March 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Section: B2 Stellar Signalmentioning

confidence: 99%

Statistical Methods for Exoplanet Detection with Radial Velocities

Hara

2023

Annu. Rev. Stat. Appl.

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Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO

Cited by 1 publication

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Statistical Methods for Exoplanet Detection with Radial Velocities

Statistical Methods for Exoplanet Detection with Radial Velocities

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