chara2025 : CHARA Science Meeting 2025

28-30 Apr 2025 Nice (France)

Programme

Week Mon. 28 Tue. 29 Wed. 30 List

	Mon. 28	Tue. 29	Wed. 30
08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00	Registration 8:30 - 9:00 (30min) Registration Register and collect name badges. Welcome and Overview 9:00 - 10:30 (1h30) Welcome and Overview MATISSE Jeremy Jones › Welcome - Denis Mourard, Observatoire de la Cote d'Azur 09:00-09:10 (10min) › CHARA Year in Review - Douglas Gies, CHARA 09:10-09:30 (20min) › Future Plans at the CHARA Array - Gail Schaefer, The Center for High Angular Resolution Astronomy Array 09:30-09:50 (20min) › From rebirth of optical interferometry to its future, some personal recollections. - Pierre Léna, Observatoire de Paris & Université Paris-Cité 09:50-10:10 (20min) › The promise of quantum interferometry - Stephen Ridgway, NSF's National Optical-Infrared Astronomy Research Laboratory 10:10-10:30 (20min) Coffee break 10:30 - 10:50 (20min) Coffee break SPICA Update, SPICA Science Results, and Evolved Stars 10:50 - 12:30 (1h40) SPICA Update, SPICA Science Results, and Evolved Stars MATISSE › SPICA progresses in 2024 - Denis Mourard, Laboratoire Lagrange (OCA, UNS, CNRS) 10:50-11:10 (20min) › Study of surface brightness and magnetic activity of ISSP dwarf stars. - Romina Ibañez-Bustos, Laboratoire Lagrange, Observatoire de la Côte d'Azur 11:10-11:30 (20min) › Surface brightness color relations of Cepheids calibrated by optical interferometry - Manon BAILLEUL, Observatoire de la Côte d'Azur 11:30-11:50 (20min) › Long-term CHARA observations of Binary Cepheids - Alexandre Gallenne, Universidad de Tarapaca 11:50-12:10 (20min) › Observation of asteroseismic red giant stars with SPICA, MIRCx and MYSTIC - Mathieu Vrard, Université Côte d'Azur 12:10-12:30 (20min) Lunch 12:30 - 14:00 (1h30) Lunch CHARA Staff Updates and Evolved Stars 14:00 - 15:35 (1h35) CHARA Staff Updates and Evolved Stars › Current state of CHARA telescopes and Future plans - Nic Scott, CHARA (Center for High Angular Resolution Astronomy) Array 14:00-14:15 (15min) › Progress on the CHARA Michelson Pathfinder Project - Edgar Ligon, CHARA (Center for High Angular Resolution Astronomy) Array 14:15-14:30 (15min) › The new mobile Telescope at the CHARA array - Rainer Koehler, The CHARA Array 14:30-14:45 (15min) › Updates on adaptive optics systems - Karolina Kubiak, CHARA (Center for High Angular Resolution Astronomy) Array 14:45-15:00 (15min) › Update on Silmaril - Cyprien Lanthermann, CHARA Array - Georgia State University 15:00-15:15 (15min) › Imaging of Massive Evolved Stars at CHARA - Narsireddy Anugu, CHARA 15:15-15:35 (20min) Coffee break 15:35 - 16:10 (35min) Coffee break Evolved Stars and Imaging 16:10 - 17:30 (1h20) Evolved Stars and Imaging › Exploring asymmetries in the dusty shell of the semi-regular variable V CVn with CHARA - Nicolaus Steenken, Sternwarte Freimann - Amateur Astronomer 16:10-16:30 (20min) › Radiative transfer modelling for the stellar merger remnant V838 Mon - Muhammad Mobeen, Nicolaus Copernicus University [Toruń] 16:30-16:50 (20min) › Radiative transfer simulations for interferometric observations of AGB stars - Jon Hulberg, Catholic University of America 16:50-17:10 (20min) › Limits of generative models for interferometric imaging - Fabien Baron, Georgia State University 17:10-17:30 (20min) Banquet 18:00 - 22:00 (4h) Banquet	CHARA Instruments and Research Tools 9:00 - 10:40 (1h40) CHARA Instruments and Research Tools › MIRCX-MYSTIC Updates - John Monnier, University of Michigan 09:00-09:20 (20min) › Update from the Exeter group: MIRC-X upgrades and science - Stefan Kraus, University of Exeter, Astrophysics Group 09:20-09:40 (20min) › First results of photonic-based interferometry with the CHara ARray Integrated Optics Testbed (CHARIOT) - Kevin Barjot, Universität zu Köln = University of Cologne 09:40-10:00 (20min) › JMMC News & updates - Laurent Bourgès, JMMC - CNRS 10:00-10:20 (20min) › The Science Explorer : The new digital library of Space Science - Simon Anghel, Laboratoire de Temps et Espace, Astronomical Institute of the Romanian Academy 10:20-10:40 (20min) Coffee break 10:40 - 11:10 (30min) Coffee break Stellar Disks 11:10 - 12:30 (1h20) Stellar Disks › Probing the disks around young stellar objects in terrestrial orbits with GRAVITY at VLTI - Karine Perraut, Institut de Planétologie et d'Astrophysique de Grenoble 11:10-11:30 (20min) › Chromatic Imaging and Modeling of l Puppis with VLTI/MATISSE: Unveiling Disc Asymmetries in B[e] Stars - Margaux Abello, Observatoire de la Côte d'Azur 11:30-11:50 (20min) › Imaging the inner AU of Young Stellar Objects - Noura Ibrahim, University of Michigan [Ann Arbor] 11:50-12:10 (20min) › HD 143006: Interferometric Confirmation of Misaligned Protoplanetary Disc with CHARA/MIRCX and VLTI/PIONIER - Isabelle Codron, University of Exeter 12:10-12:30 (20min) Lunch 12:30 - 14:00 (1h30) Lunch Partner Interferometers, Instruments, and CHARA Staff Updates 14:00 - 15:30 (1h30) Partner Interferometers, Instruments, and CHARA Staff Updates › Current Status of the Magdalena Ridge Observatory Interferometer - David Buscher, University of Cambridge 14:00-14:20 (20min) › Updates from the VLTI - Antoine Merand, European Southern Observatory 14:20-14:40 (20min) › SPINER: Testing the feasibility of a spectro-interferometric-échelle beam combiner. - Jeronimo Calderon Gomez, Université Côte d'Azur, Università degli Studi di Roma Tor Vergata [Roma, Italia] = University of Rome Tor Vergata [Rome, Italy] = Université de Rome Tor Vergata [Rome, Italie] 14:40-15:00 (20min) › Dual-Star Interferometry at the CHARA Array - Narsireddy Anugu, CHARA 15:00-15:15 (15min) › Overview of Modifications to the CHARA Array Delay Lines - Nils Turner, Georgia State University - CHARA Array 15:15-15:30 (15min) Coffee break 15:30 - 16:00 (30min) Coffee break CHARA Staff Updates and Stellar Fundamental Parameters 16:00 - 17:30 (1h30) CHARA Staff Updates and Stellar Fundamental Parameters › CHARA Operations and Scheduling - Christopher Farrington, CHARA (Center for High Angular Resolution Astronomy) Array 16:00-16:15 (15min) › CHARA Remote Operations and Data Access - Jeremy Jones, CHARA (Center for High Angular Resolution Astronomy) Array 16:15-16:30 (15min) › One big exoplanet family: A detailed look into the properties of the HD 219134 multi-planet system - Ashley Elliott, Department of Physics & Astronomy [Louisiana State University] 16:30-16:50 (20min) › A Study of Rotation, Convection, and Activity Across the Kraft Break - Colin Kane, Georgia State University 16:50-17:10 (20min) › Interferometry and Sun-like Stars - Rachael Roettenbacher, University of Michigan 17:10-17:30 (20min)	Stellar Fundamental Parameters and Binary Stars 9:00 - 10:40 (1h40) Stellar Fundamental Parameters and Binary Stars › Determination of fundamental parameters of stars using Interferometry. - N. Ebrahimkutty, Observatoire de la Côte d'Azur 09:00-09:20 (20min) › Uncoupling Gaia's blended binaries with Heimdallr and CHARA: precision masses for Galactic archaeology - Ireland Michael, Australian National University 09:20-09:40 (20min) › Calibrating asteroseismology scaling relation by CHARA observation on Gaia binaries - Yi Lu, School of Physics and Astronomy [Exeter] 09:40-10:00 (20min) › First results of the CHARA/SPICA ISSP binary program - Juraj Jonák, Observatoire de la Côte d'Azur 10:00-10:20 (20min) › The Radius Inflation Problem: Ditching Eclipsing Binaries - Becky Flores, Department of Physics & Astronomy, Georgia State University, The Center for High Angular Resolution Astronomy Array 10:20-10:40 (20min) Coffee break 10:40 - 11:10 (30min) Coffee break The Future of CHARA and Optical Interferometry 11:10 - 12:30 (1h20) The Future of CHARA and Optical Interferometry › Summary of the long-term prospective meeting, April 25th 2025 - Denis Mourard, Laboratoire Lagrange (OCA, UNS, CNRS) 11:10-11:30 (20min) › Discussion of the short- and long-term priorities for CHARA - Gail Schaefer, The Center for High Angular Resolution Astronomy Array - Douglas Gies, CHARA 11:30-12:30 (1h) Lunch 12:30 - 14:00 (1h30) Lunch

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