Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4

We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA’s Infrared Telescope Facility (IRTF), 12 spectra were collected over five consecutive nights, spanning ≈1.5 stellar rotations. Using the IRTF SpeX Spectral Library, we constructed...

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Autori principali:	Facundo Pérez Paolino, Jeffrey S. Bary, Michael S. Petersen, Kimberly Ward-Duong, Benjamin M. Tofflemire, Katherine B. Follette, Heidi Mach
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	IOP Publishing 2023-01-01
Serie:	The Astrophysical Journal
Soggetti:	T Tauri stars Star formation Early stellar evolution Starspots Pre-main sequence stars Stellar evolutionary tracks
Accesso online:	https://doi.org/10.3847/1538-4357/acbb61
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