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Related papers: Quantifying the Limits of TESS Stellar Rotation Me…

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The rotation period of a star is an important quantity that provides insight into its structure and state. For stars with surface features like starspots, their periods can be inferred from brightness variations as these features move…

Solar and Stellar Astrophysics · Physics 2025-05-16 Soichiro Hattori , Ruth Angus , Daniel Foreman-Mackey , Yuxi , Lu , Isabel Colman

Stellar rotation is a fundamental tracer of stellar magnetic evolution, age, and activity, with broad implications for Galactic archaeology and exoplanet characterization. The Transiting Exoplanet Survey Satellite (TESS) provides…

Solar and Stellar Astrophysics · Physics 2026-05-04 Andrew W. Boyle , Luke G. Bouma , Andrew W. Mann

For ongoing studies of the role of rotation in stellar evolution, we require large catalogs of rotation periods for testing and refining gyrochronology. While there is a wealth of data from the Kepler and K2 missions, TESS presents both an…

Solar and Stellar Astrophysics · Physics 2024-02-26 Isabel L. Colman , Ruth Angus , Trevor David , Jason Curtis , Soichiro Hattori , Yuxi Lucy Lu

The TESS mission delivers time-series photometry for millions of stars across the sky, offering a probe into stellar astrophysics, including rotation, on a population scale. However, light curve systematics related to the satellite's…

Solar and Stellar Astrophysics · Physics 2024-01-12 Zachary R. Claytor , Jennifer L. van Saders , Lyra Cao , Marc H. Pinsonneault , Johanna Teske , Rachael L. Beaton

The Transiting Exoplanet Survey Satellite (TESS) has observed nearly the entire sky, producing full-frame images (FFIs) every 30 min (Cycles 1$-$2), 10 min (Cycles 3$-$4), and now 200 s (Cycle 5+), over 27-day sectors. Light curves…

Solar and Stellar Astrophysics · Physics 2026-01-27 Matthew S. Stafford , Jason L. Curtis , Marcel A. Agüeros

The high quality light curves from the Transiting Exoplanet Survey Satellite (TESS) represent a unique laboratory for the study of stellar rotation, a fundamental observable driving stellar and planetary evolution, including planetary…

Stellar rotation is a fundamental parameter governing a star's magnetic activity and evolution. The Transiting Exoplanet Survey Satellite (TESS) provides high-precision photometric data ideal for measuring rotation periods via brightness…

Solar and Stellar Astrophysics · Physics 2025-09-17 Pratik Paudel , Daya Nidhi Chhatkuli , Bikash Sharma , Ashish Khanal , Nabaraj Khatri , Divash Rai

We used a convolutional neural network to infer stellar rotation periods from a set of synthetic light curves simulated with realistic spot evolution patterns. We convolved these simulated light curves with real TESS light curves containing…

Solar and Stellar Astrophysics · Physics 2022-03-30 Zachary R. Claytor , Jennifer L. van Saders , Joe Llama , Peter Sadowski , Brandon Quach , Ellis Avallone

Contamination from nearby sources often compromises stellar rotation periods derived from photometric light curves, particularly in data with large pixel scales such as TESS. This problem is compounded when both the target and contaminant…

Solar and Stellar Astrophysics · Physics 2025-07-14 Mariel Lares-Martiz , Terry D. Oswalt , Derek L. Buzasi , Kylie R. Boyer , Luca Guida , Ryan J. Reynolds

Stellar rotation is a complex function of mass, metallicity, and age and can be altered by binarity. To understand the importance of these parameters in main sequence stars, we have assembled a sample of observations that spans a range of…

NASA's TESS mission \citep{tess} has produced high precision photometry of millions of stars to the community. The majority of TESS observations have a duration of $\approx$27 days, corresponding to a single observation during a TESS…

Instrumentation and Methods for Astrophysics · Physics 2020-12-17 Christina Hedges , Ruth Angus , Geert Barentsen , Nicholas Saunders , Benjamin T. Montet , Michael Gully-Santiago

The Transiting Exoplanet Survey Satellite (TESS) is NASA's latest space telescope dedicated to the discovery of transiting exoplanets around nearby stars. Besides the main goal of the mission, asteroseismology is an important secondary goal…

The rotation periods of planet-hosting stars can be used for modeling and mitigating the impact of magnetic activity in radial velocity measurements and can help constrain the high-energy flux environment and space weather of planetary…

Solar and Stellar Astrophysics · Physics 2022-03-23 Yuxi , Lu , Ruth Angus , Marcel A. ~Agüeros , Kirsten Blancato , Melissa Ness , Jason L. ~Curtis , Sam Grunblatt

The proposed Transiting Exoplanet Survey Satellite (TESS) will survey the entire sky to locate the nearest and brightest transiting extrasolar planets with orbital periods up to about 36 days. Here we estimate the number and kind of…

Astrophysics · Physics 2008-12-09 Timothy M. Brown , David W. Latham

Data from the Transiting Exoplanet Survey Satellite (TESS) has produced of order one million light curves at cadences of 120 s and especially 1800 s for every ~27-day observing sector during its two-year nominal mission. These data…

The {\it Transiting Exoplanet Survey Satellite} (TESS) searches for planets transiting bright and nearby stars using high-cadence, large-scale photometric observations. Full Frame Images provided by the TESS mission include large number of…

Earth and Planetary Astrophysics · Physics 2020-01-08 A. McNeill , M. Mommert , D. E. Trilling , J. Llama , B. Skiff

Stellar RV jitter due to surface activity may bias the RV semi-amplitude and mass of rocky planets. The amplitude of the jitter may be estimated from the uncertainty in the rotation period, allowing the mass to be more accurately obtained.…

Launched on April 2018, NASA's Transiting Exoplanet Survey Satellite (TESS) has been performing a wide-field survey for exoplanets orbiting stars with a goal of producing a rich database for follow-on studies. Here we present estimates of…

Earth and Planetary Astrophysics · Physics 2019-08-14 Jonathan H. Jiang , Xuan Ji , Nicolas Cowan , Renyu Hu , Zonghong Zhu

The legacy of NASA's K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying the atmospheres of these systems. However,…

During its 2-year Prime Mission, TESS observed over 232,000 stars at a 2-min cadence across ~70% of the sky. These data provide a record of photometric variability across a range of astrophysically interesting time scales, probing stellar…

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