Search Results - "Cao, Lyra"

The SPOTS Models: A Grid of Theoretical Stellar Evolution Tracks and Isochrones for Testing the Effects of Starspots on Structure and Colors by Somers, Garrett, Cao, Lyra, Pinsonneault, Marc H.

“…One-dimensional stellar evolution models have been successful at representing the structure and evolution of stars in diverse astrophysical contexts, but…”
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Core-envelope Decoupling Drives Radial Shear Dynamos in Cool Stars by Cao, Lyra, Pinsonneault, Marc H., van Saders, Jennifer L.

“…Abstract Differential rotation is thought to be responsible for the dynamo process in stars like our Sun, driving magnetic activity and starspots. We report…”
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TESS Stellar Rotation up to 80 Days in the Southern Continuous Viewing Zone by Claytor, Zachary R., van Saders, Jennifer L., Cao, Lyra, Pinsonneault, Marc H., Teske, Johanna, Beaton, Rachael L.

“…Abstract The Transiting Exoplanet Survey Satellite (TESS) mission delivers time-series photometry for millions of stars across the sky, offering a probe into…”
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pynucastro: A Python Library for Nuclear Astrophysics by Smith, Alexander I., Johnson, Eric T., Chen, Zhi, Eiden, Kiran, Willcox, Donald E., Boyd, Brendan, Cao, Lyra, DeGrendele, Christopher J., Zingale, Michael

“…Abstract We describe pynucastro 2.0, an open-source library for interactively creating and exploring astrophysical nuclear reaction networks. We demonstrate…”
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Magnetic Fields in M-dwarf Members of the Pleiades Open Cluster Using APOGEE Spectra by Wanderley, Fábio, Cunha, Katia, Kochukhov, Oleg, Smith, Verne V., Souto, Diogo, Cao, Lyra, Covey, Kevin, Majewski, Steven R., Martinez, Cintia, Muirhead, Philip S., Pinsonneault, Marc, Allende Prieto, C., Stassun, Keivan G.

“…Abstract Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe i lines in the…”
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ABYSS. I. Targeting Strategy for the APOGEE and BOSS Young Star Survey in SDSS-V by Kounkel, Marina, Zari, Eleonora, Covey, Kevin, Tkachenko, Andrew, Zúñiga, Carlos Román, Stassun, Keivan, Stutz, Amelia M., Stringfellow, Guy, Roman-Lopes, Alexandre, Hernández, Jesús, Ramírez, Karla Peña, Bayo, Amelia, Kim, Jinyoung Serena, Cao, Lyra, Wolk, Scott J., Kollmeier, Juna, López-Valdivia, Ricardo, Rojas-Ayala, Bárbara

“…Abstract The fifth iteration of the Sloan Digital Sky Survey is set to obtain optical and near-infrared spectra of ∼5 million stars of all ages and masses…”
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Stellar Characterization and Radius Inflation of Hyades M-dwarf Stars from the APOGEE Survey by Wanderley, Fábio, Cunha, Katia, Souto, Diogo, Smith, Verne V., Cao, Lyra, Pinsonneault, Marc, Allende Prieto, C., Covey, Kevin, Masseron, Thomas, Pascucci, Ilaria, Stassun, Keivan G., Terrien, Ryan, Bergsten, Galen J., Bizyaev, Dmitry, Fernández-Trincado, José G., Jönsson, Henrik, Hasselquist, Sten, Holtzman, Jon A., Lane, Richard R., Mahadevan, Suvrath, Majewski, Steven R., Minniti, Dante, Pan, Kaike, Serna, Javier, Sobeck, Jennifer, Stringfellow, Guy S.

“…Abstract We present a spectroscopic analysis of a sample of 48 M-dwarf stars (0.2 M ⊙ < M < 0.6 M ⊙ ) from the Hyades open cluster using high-resolution H…”
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Rotational Evolution of Classical T Tauri Stars: Models and Observations by Serna, Javier, Pinzón, Giovanni, Hernández, Jesús, Manzo-Martínez, Ezequiel, Mauco, Karina, Román-Zúñiga, Carlos G., Calvet, Nuria, Briceño, Cesar, López-Valdivia, Ricardo, Kounkel, Marina, Stringfellow, Guy S., Stassun, Keivan G., Pinsonneault, Marc, Adame, Lucia, Cao, Lyra, Covey, Kevin, Bayo, Amelia, Roman-Lopes, Alexandre, Nitschelm, Christian, Lane, Richard R.

“…Abstract We developed a grid of stellar rotation models for low-mass and solar-type classical T Tauri stars (CTTS; 0.3 M ⊙ < M * < 1.2 M ⊙ ). These models…”
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The Gasing Pangkah Collaboration. I. Asteroseismic Identification and Characterization of a Rapidly Rotating Engulfment Candidate by Ong 王, J. M. Joel 加冕, Hon, Marc Teng Yen, Soares-Furtado, Melinda, Stephan, Alexander P., van Saders, Jennifer, Tayar, Jamie, Shappee, Benjamin, Hey, Daniel R., Cao, Lyra, Yıldız, Mutlu, Orhan, Zeynep Çelik, Örtel, Sibel, Montet, Benjamin, Holoien, Thomas W.-S., Bland-Hawthorn, Joss, Buder, Sven, De Silva, Gayandhi M., Freeman, Ken C., Martell, Sarah L., Lewis, Geraint F., Sharma, Sanjib, Stello, Dennis

“…Abstract We report the discovery and characterization of TIC 350842552 (“Zvrk”), an apparently isolated, rapidly rotating ( P rot ∼ 99 days) red giant observed…”
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Star-spots and magnetism: testing the activity paradigm in the Pleiades and M67 by Cao, Lyra, Pinsonneault, Marc H.

“…ABSTRACT We measure star-spot filling fractions for 240 stars in the Pleiades and M67 open star clusters using APOGEE high-resolution H-band spectra. For this…”
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Star-spots and magnetism: testing the activity paradigm in the Pleiades and M67 by Cao, Lyra, Pinsonneault, Marc H

“…ABSTRACT We measure star-spot filling fractions for 240 stars in the Pleiades and M67 open star clusters using APOGEE high-resolution H-band spectra. For this…”
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Age Spreads and Systematics in λ Orionis with Gaia DR2 and the SPOTS Tracks by Cao, Lyra, Pinsonneault, Marc H., Hillenbrand, Lynne A., Kuhn, Michael A.

“…Abstract In this paper we investigate the robustness of age measurements, age spreads, and stellar models in young pre-main-sequence stars. For this effort, we…”
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Forcing of slow density waves in the C ring by Saturn's quasi-toroidal normal modes by Friedson, A. James, Parisi, Marzia, Cao, Lyra, Pew, Xiaohan Xue, Ding, Leon, Broad, Katherine

“…We calculate Saturn's quasi-toroidal normal modes of azimuthal order three for several candidate models for the interior stratification. We propose that these…”
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Starspots and the Magnetic Lives of Stars by Cao, Lyra

“…Stellar evolution---the study of how the observable properties of stars evolve over their life cycles---is linked to frameworks of how stars interact with…”
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Constraints on star formation in Orion A from Gaia by Alzate, Jairo A, Bruzual, Gustavo, Kounkel, Marina, Magris, Gladis, Hartmann, Lee, Calvet, Nuria, Cao, Lyra

“…ABSTRACT We develop statistical methods within a Bayesian framework to infer the star formation history from photometric surveys of pre-main-sequence…”
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Seven classes of rotational variables from a study of 50 000 spotted stars with ASAS-SN, Gaia, and APOGEE by Phillips, Anya, Kochanek, C S, Jayasinghe, Tharindu, Cao, Lyra, Christy, Collin T, Rowan, D M, Pinsonneault, Marc

“…ABSTRACT We examine the properties of ∼50 000 rotational variables from the ASAS-SN survey using distances, stellar properties, and probes of binarity from…”
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Spectroscopic identification of rapidly rotating red giant stars in APOKASC-3 and APOGEE DR16 by Patton, Rachel A, Pinsonneault, Marc H, Cao, Lyra, Vrard, Mathieu, Mathur, Savita, García, Rafael A, Tayar, Jamie, Daher, Christine Mazzola, Beck, Paul G

“…ABSTRACT Rotationally enhanced red giant stars are astrophysically interesting but rare. In this paper, we present a catalogue of 3217 active red giant…”
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The Gasing Pangkah Collaboration. I. Asteroseismic Identification and Characterization of a Rapidly Rotating Engulfment Candidate Gasing pangkah is a traditional Malay competitive game of fighting spinning tops, whose name we adopt as the name of our collaboration by Ong, J. M. Joel, Hon, Marc Teng Yen, Soares-Furtado, Melinda, Stephan, Alexander P., van Saders, Jennifer, Tayar, Jamie, Shappee, Benjamin, Hey, Daniel R., Cao, Lyra, Yıldız, Mutlu, Orhan, Zeynep Çelik, Örtel, Sibel, Montet, Benjamin, Holoien, Thomas W.-S., Bland-Hawthorn, Joss, Buder, Sven, De Silva, Gayandhi M., Freeman, Ken C., Martell, Sarah L., Lewis, Geraint F., Sharma, Sanjib, Stello, Dennis

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Starspots and Magnetism: Testing the Activity Paradigm in the Pleiades and M67 by Cao, Lyra, Pinsonneault, Marc H

“…We measure starspot filling fractions for 240 stars in the Pleiades and M67 open star clusters using APOGEE high-resolution H-band spectra. For this work we…”
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Core-envelope decoupling drives radial shear dynamos in cool stars by Cao, Lyra, Pinsonneault, Marc H, van Saders, Jennifer L

“…Differential rotation is thought to be responsible for the dynamo process in stars like our Sun, driving magnetic activity and star spots. We report that star…”
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