Stellar Astrophysics and Exoplanet Science with the Maunakea Spectroscopic Explorer (MSE)

Maria Bergemann, Daniel Huber, Vardan Adibekyan, George Angelou, Daniela Barría, Timothy C. Beers, Paul G. Beck, Earl P. Bellinger, Joachim M. Bestenlehner, Bertram Bitsch, Adam Burgasser, Derek Buzasi, Santi Cassisi, Márcio Catelan, Ana Escorza, Scott W. Fleming, Boris T. Gänsicke, Davide Gandolfi, Rafael A. García, Mark Gieles, Amanda Karakas, Yveline Lebreton, Nicolas Lodieu, Carl Melis, Thibault Merle, Szabolcs Mészáros, Andrea Miglio, Karan Molaverdikhani, Richard Monier, Thierry Morel, Hilding R. Neilson, Mahmoudreza Oshagh, Jan Rybizki, Aldo Serenelli, Rodolfo Smiljanic, Gyula M. Szabó, Silvia Toonen, Pier-Emmanuel Tremblay, Marica Valentini, Sophie Van Eck, Konstanze Zwintz, Amelia Bayo, Jan Cami, Luca Casagrande, Maksim Gabdeev, Patrick Gaulme, Guillaume Guiglion, Gerald Handler, Lynne Hillenbrand, Mutlu Yildiz, Mark Marley, Benoit Mosser, Adrian M. Price-Whelan, Andrej Prsa, Juan V. Hernández Santisteban, Victor Silva Aguirre, Jennifer Sobeck, Dennis Stello, Robert Szabo, Maria Tsantaki, Eva Villaver, Nicholas J. Wright, Siyi Xu, Huawei Zhang, Borja Anguiano, Megan Bedell, Bill Chaplin, Remo Collet, Devika Kamath, Sarah Martell, Sérgio G. Sousa, Yuan-Sen Ting, Kim Venn

Stellar Astrophysics and Exoplanet Science with the Maunakea Spectroscopic Explorer (MSE)
See arXiv version
31 pages, 11 figures; To appear as a chapter for the Detailed Science Case of the Maunakea Spectroscopic Explorer


The Maunakea Spectroscopic Explorer (MSE) is a planned 11.25-m aperture facility with a 1.5 square degree field of view that will be fully dedicated to multi-object spectroscopy. A rebirth of the 3.6m Canada-France-Hawaii Telescope on Maunakea, MSE will use 4332 fibers operating at three different resolving powers (R ~ 2500, 6000, 40000) across a wavelength range of 0.36-1.8mum, with dynamical fiber positioning that allows fibers to match the exposure times of individual objects. MSE will enable spectroscopic surveys with unprecedented scale and sensitivity by collecting millions of spectra per year down to limiting magnitudes of g ~ 20-24 mag, with a nominal velocity precision of ~100 m/s in high-resolution mode. This white paper describes science cases for stellar astrophysics and exoplanet science using MSE, including the discovery and atmospheric characterization of exoplanets and substellar objects, stellar physics with star clusters, asteroseismology of solar-like oscillators and opacity-driven pulsators, studies of stellar rotation, activity, and multiplicity, as well as the chemical characterization of AGB and extremely metal-poor stars.

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