Persistent starspot signals on M dwarfs: multi-wavelength Doppler observations with the Habitable-zone Planet Finder and Keck/HIRES

Young, rapidly-rotating M dwarfs exhibit prominent starspots, which create quasiperiodic signals in their photometric and Doppler spectroscopic measurements. The periodic Doppler signals can mimic radial velocity (RV) changes expected from orbiting exoplanets. Exoplanets can be distinguished from ac...

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Veröffentlicht in:	arXiv.org 2020-05
Hauptverfasser:	Robertson, Paul, Stefansson, Gudmundur, Mahadevan, Suvrath, Endl, Michael, Cochran, William D, Beard, Corey, Bender, Chad F, Diddams, Scott A, Duong, Nicholas, d, Eric B, Connor, Fredrick, Halverson, Samuel, Hearty, Fred, Holcomb, Rae, Juan, Lydia, Kanodia, Shubham, Lubin, Jack, Metcalf, Andrew J, Monson, Andrew, Ninan, Joe P, Palafoutas, Jonathan, Ramsey, Lawrence W, Roy, Arpita, Schwab, Christian, Terrien, Ryan C, Wright, Jason T
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Chromaticity Coherence Extrasolar planets Incoherence M stars Modulation Optical counterparts (astronomy) Photometry Physics - Earth and Planetary Astrophysics Physics - Solar and Stellar Astrophysics Planetary orbits Planetary rotation Radial velocity Red dwarf stars Starspots Stellar magnetic fields Stellar rotation Telescopes
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