Jason L. Curtis

The Factory and the Beehive. V.

Alejandro Núñez, Marcel A. Agüeros, Jason L. Curtis, Kevin R. Covey et autres

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Improving the Physical Interpretability of Gaussian Processes in Stellar Activity Modeling: A Study Case on Photometric Variability Among Stellar Clusters

Leslie Moranta, Jonathan Gagné, Jacqueline K. Faherty, Mark Popinchalk et autres

Gaussian Processes (GPs) are widely used to model stellar variability in photometric surveys, but a statistically successful fit does not guarantee that the inferred hyperparameters correspond to physically meaningful stellar properties. This is especially important for young, active stars, whose TESS light …

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Measuring Rotation Periods in Crowded Star Clusters with TESS: A Proof of Concept with NGC 3532

Matthew S. Stafford, Jason L. Curtis, Marcel A. Agüeros

Abstract The Transiting Exoplanet Survey Satellite (TESS) has observed nearly the entire sky, producing Full-Frame Images (FFIs) every 30 minutes (Cycles 1–2), 10 minutes (Cycles 3–4), and now 200 s (Cycle 5+), over 27 day sectors. Light curves extracted from FFIs can …

Measuring Rotation Periods in Crowded Star Clusters with TESS: A Proof-of-Concept with NGC 3532

Matthew S. Stafford, Jason L. Curtis, Marcel A. Agüeros

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 extracted from FFIs can be used …

Crowning the Queen: Membership, Age, Rotation, and Activity for the Open Cluster Coma Berenices

Marcel A. Agüeros, Jason L. Curtis, Alejandro Núñez, Clare Burhenne et autres

Abstract Despite being only 85 pc away, the open cluster Coma Berenices (Coma Ber) has not been extensively studied. This is due in part to its sparseness and low proper motion, which together made Coma Ber’s membership challenging to establish. Gaia data …

Crowning the Queen: Membership, Age, Rotation, and Activity for the Open Cluster Coma Berenices

Marcel A. Agüeros, Jason L. Curtis, Alejandro Núñez, Clare Burhenne et autres

Despite being only 85 pc away, the open cluster Coma Berenices (Coma Ber) has not been extensively studied. This is due in part to its sparseness and low proper motion, which together made Coma Ber's membership challenging to establish. Gaia data for …

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Evidence for a Catastrophically Disrupted Open Cluster

A. Miller, Kyle R. Tregoning, Jeff J. Andrews, Simon C. Schuler et autres

Abstract Of the many discoveries uncovered by the Gaia astrometric mission, some of the most exciting are related to nearby dispersed stellar structures. We analyze one such structure in the Milky Way disk, OCSN-49, a coeval stellar stream with 257 identified members …

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Evidence for a Catastrophically Disrupted Open Cluster

A. Miller, Kyle R. Tregoning, Jeff J. Andrews, Simon C. Schuler et autres

Of the many discoveries uncovered by the Gaia astrometric mission, some of the most exciting are related to nearby dispersed stellar structures. We analyze one such structure in the Milky Way disk, OCSN-49, a coeval stellar stream with 257 identified members spanning …

Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-period Transiting Exoplanets

Rachel B. Fernandes, Galen J. Bergsten, Gijs D. Mulders, Ilaria Pascucci et autres

Abstract Comparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time. We present an occurrence rate study of short-period (<12 days) planets between 1.8 and 10 R ⊕ around 1374 FGK stars …

Signatures of Atmospheric Mass Loss and Planet Migration in the Time Evolution of Short-Period Transiting Exoplanets

Rachel B. Fernandes, Galen J. Bergsten, Gijs D. Mulders, Ilaria Pascucci et autres

Comparative studies of young and old exoplanet populations offer a glimpse into how planets may form and evolve with time. We present an occurrence rate study of short-period ($<$12 days) planets between 1.8--10 Rearth around 1374 FGK stars in nearby (200 pc) …

Erratum: “TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet” (2022, AJ, 164, 119)

Peyton Brown, Ivan A. Strakhov, Andrew Vanderburg, F. Murgas et autres

Erratum: “TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet”

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TESS Hunt for Young and Maturing Exoplanets (THYME). VII. Membership, Rotation, and Lithium in the Young Cluster Group-X and a New Young Exoplanet

Douglas A. Caldwell, Samuel N. Quinn, Daniel Huber, Adam L. Kraus et autres

The public, all-sky surveys Gaia and TESS provide the ability to identify new young associations and determine their ages. These associations enable study of planetary evolution by providing new opportunities to discover young exoplanets. A young association was recently identified by Tang …

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