GPRV workshop
All Souls College, Oxford
28-31 March 2022
Recorded talks, tutorials and discussions available here:
Programme
Day 1 (Monday, 28 March 2022)
12:00 Arrival and lunch
13:30 Suzanne Aigrain: Welcome
Chair: Belinda Nicholson
13:45: Oscar Barragán: Modelling stellar activity variations in the time domain
14:15 Jean-Baptiste Delisle: A Fast GP model for the joint analysis of RV and activity indicators time series
14:45 Sam Halverson: Activity Studies of the Sun as a Star
15:15: Poster talks
15:30 Tea break
16:00 Dan Foreman-Mackey: Scalable GP inference (tutorial)
Social event
Day 2 (Tuesday, 29 March 2022)
Chair: Louise Nielsen
9:30 Nathan Hara: An optimal exoplanet detection criterion
10:00 Sahar Shahaf: New Periodograms Separating Orbital Radial Velocities and Spectral Shape Variation
10:30 Annelies Mortier: Phase shifts between RVs and indicators
11:00 Coffee break
11:30 Lily Zhao: Summary/Discussion of the EXPRES Stellar Signals Project
12:00 Lars Buchhave: Discussion on instrumental systematics and pipelines
12:30 Lunch
Chair: Suzanne Aigrain
14:00 Baptiste Klein: Modelling stellar activity variations in the wavelength space
14:30 Florian Lienhard: Radial Velocities and Magnetic Flux Estimates via Least-Squares Deconvolution
15:00 Zoe de Beurs: Using Machine Learning to Model Stellar Activity in RV Searches
15:30 Tea break
16:00 Michael Cretignier: Correcting stellar activity by PCA applied on a compact representation of spectra
16:30 Xavier Dumusque: Discussion on the impact of instrumental and stellar signals at the spectrum level
Conference dinner
Day 3 (Wednesday, 30 March 2022)
Chair: Oscar Barragán
9:30 Rodrigo Luger: Interpretable Gaussian processes for stellar variability in EPRV datasets
10:00 Two tutorials in parallel:
Yinan Zhao: SOAP-GPU: Efficient Spectral Modelling of Stellar Activity Using Graphical Processing Units
Rodrigo Luger: starry and starry-process
11:00 Coffee break
11:30 David Hogg: Modelling the full stellar surface, and all the pixels of the spectrum (discussion)
12:30 Lunch
Chair: Norbert Zicher
14:00 João Faria: Stellar activity at the cm/s level with ESPRESSO
14:30 Marina Lafarga Magro: Activity effects on stellar spectra
15:00 Belinda Nicholson: Interpreting the hyper-parameters of GP models for activity
15:30 Tea break
16:00 Claudia Di Maio: Optimization of the radial velocity extraction in young/active stars
16:30 Alejandro Suárez Mascareño: V1298 Tau - Extracting planetary signals in extreme stellar activity
17:00 Louise Nielsen: RVs of young, active stars (discussion)
Social event
Day 4 (Thursday, 31 March 2022)
Chair: Haochuan Yu
9:30 Khaled Al Moulla: Radial Velocity Dependence on Line Formation Temperature
10:00 Eric B. Ford: GPs modeling of NEID solar spectra with an emphasis on granulation
10:30 Sharon Xuesong Wang: Modeling Stellar Oscillations in Simultaneous Photometry and RVs
11:00 Coffee break
11:30 Heather Cegla / Jennifer Burt: The EPRV roadmap (discussion)
12:30 Lunch
End of conference