Characterizing Solar Center-to-Limb Radial-Velocity Variability with SDO

Authors: Palumbo III, Michael L., Saar, Steven H., Haywood, Raphaëlle D.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2404.16747

Asteroseismology and Spectropolarimetry of the Exoplanet Host Star $\lambda$ Serpentis

Authors: Metcalfe, Travis S., Buzasi, Derek, Huber, Daniel, Pinsonneault, Marc H., van Saders, Jennifer L., Ayres, Thomas R., Basu, Sarbani, Drake, Jeremy J., Egeland, Ricky, Kochukhov, Oleg, Petit, Pascal, Saar, Steven H., See, Victor, Stassun, Keivan G., Li, Yaguang, Bedding, Timothy R., Breton, Sylvain N., Finley, Adam J., Garcia, Rafael A., Kjeldsen, Hans, Nielsen, Martin B., Ong, J. M. Joel, Rorsted, Jakob L., Stokholm, Amalie, Winther, Mark L., Clark, Catherine A., Godoy-Rivera, Diego, Ilyin, Ilya V., Strassmeier, Klaus G., Jeffers, Sandra V., Marsden, Stephen C., Vidotto, Aline A., Baliunas, Sallie, Soon, Willie

Source: Astron. J. 166, 167 (2023)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2308.09808

Stellar Cycles in Fully Convective Stars and a New Interpretation of Dynamo Evolution

Authors: Irving, Zackery A., Saar, Steven H., Wargelin, Bradford J., Nascimento Jr, José-Dias do

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2303.08519

X-ray Activity Variations and Coronal Abundances of the Star-Planet Interaction candidate HD 179949

Authors: Acharya, Anshuman, Kashyap, Vinay L., Saar, Steven H., Singh, Kulinder Pal, Cuntz, Manfred

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena

Access URL: http://arxiv.org/abs/2211.01011

HD 166620: Portrait of a Star Entering a Grand Magnetic Minimum

Authors: Luhn, Jacob K., Wright, Jason T., Henry, Gregory W., Saar, Steven H., Baum, Anna C.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2207.00612

K2-79b and K2-222b: Mass measurements of two small exoplanets with periods beyond 10 days that overlap with periodic magnetic activity signals

Authors: Nava, Chantanelle, López-Morales, Mercedes, Mortier, Annelies, Zeng, Li, Giles, Helen A. C., Bieryla, Allyson, Vanderburg, Andrew, Buchhave, Lars A., Poretti, Ennio, Saar, Steven H., Dumusque, Xavier, Latham, David W., Charbonneau, David, Damasso, Mario, Bonomo, Aldo S., Lovis, Christophe, Cameron, Andrew Collier, Eastman, Jason D., Sozzetti, Alessandro, Cosentino, Rosario, Pedani, Marco, Pepe, Francesco, Molinari, Emilio, Sasselov, Dimitar, Mayor, Michel, Stalport, Manu, Malavolta, Luca, Rice, Ken, Watson, Christopher A., Fiorenzano, A. F. Martinez, Di Fabrizio, Luca

Subject Terms: Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2111.02608

Magnetic and Rotational Evolution of $\rho$ CrB from Asteroseismology with TESS

Authors: Metcalfe, Travis S., van Saders, Jennifer L., Basu, Sarbani, Buzasi, Derek, Drake, Jeremy J., Egeland, Ricky, Huber, Daniel, Saar, Steven H., Stassun, Keivan G., Ball, Warrick H., Campante, Tiago L., Finley, Adam J., Kochukhov, Oleg, Mathur, Savita, Reinhold, Timo, See, Victor, Baliunas, Sallie, Soon, Willie

Source: Astrophys. J. 921, 122 (2021)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2108.01088

Long-term stellar activity variations and their effect on radial-velocity measurements

Authors: Costes, Jean C., Watson, Christopher A., de Mooij, Ernst, Saar, Steven H., Dumusque, Xavier, Cameron, Andrew Collier, Phillips, David F., Günther, Maximilian N., Jenkins, James S., Mortier, Annelies, Thompson, Andrew P. G.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2105.01915

When Do Stalled Stars Resume Spinning Down? Advancing Gyrochronology with Ruprecht 147

Authors: Curtis, Jason Lee, Agüeros, Marcel A., Matt, Sean P., Covey, Kevin R., Douglas, Stephanie T., Angus, Ruth, Saar, Steven H., Cody, Ann Marie, Vanderburg, Andrew, Law, Nicholas M., Kraus, Adam L., Latham, David W., Baranec, Christoph, Riddle, Reed, Ziegler, Carl, Lund, Mikkel N., Torres, Guillermo, Meibom, Søren, Aguirre, Victor Silva, Wright, Jason T.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Astrophysics of Galaxies

Access URL: http://arxiv.org/abs/2010.02272

Rotation of solar analogs cross-matching Kepler and Gaia DR2

Authors: Nascimento Jr, Jose-Dias do, de Almeida, Leandro, Velloso, Eduardo Nunes, Anthony, Francys, Barnes, Sydney A, Saar, Steven H, Meibom, Soren, da Costa, Jefferson Soares, Castro, Matthieu, Galarza, Jhon Yana, Lorenzo-Oliveira, Diego, Beck, Paul G., Melendez, Jorge

Subject Terms: Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics

Access URL: http://arxiv.org/abs/2006.06204

Stars at High Spatial Resolution

Authors: Carpenter, Kenneth G., van Belle, Gerard, Brown, Alexander, Cranmer, Steven R., Drake, Jeremy, Dupree, Andrea K., Creech-Eakman, Michelle, Evans, Nancy R., Grady, Carol A., Guinan, Edward F., Harper, Graham, Karovska, Margarita, Kolenberg, Katrien, Labeyrie, Antoine, Linsky, Jeffrey, Peters, Geraldine J., Rau, Gioia, Ridgway, Stephen, Roettenbacher, Rachael M., Saar, Steven H., Walter, Frederick M., Wood, Brian

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1908.05665

Meridional motions and Reynolds stress from SDO/AIA coronal bright points data

Authors: Sudar, Davor, Saar, Steven H., Skokić, Ivica, Beljan, Ivana Poljančić, Brajša, Roman

Source: A&A 587, A29 (2016)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1601.02406

Linking Stellar Coronal Activity and Rotation at 500 Myr: A Deep Chandra Observation of M37

Authors: Núñez, Alejandro, Agüeros, Marcel A., Covey, Kevin R., Hartman, Joel D., Kraus, Adam L., Bowsher, Emily C., Douglas, Stephanie T., López-Morales, Mercedes, Pooley, David A., Posselt, Bettina, Saar, Steven H., West, Andrew A.

Source: The Astrophysical Journal, 809, Issue 2, 161N (2015)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1507.02333

X-Ray, UV, and Optical Observations of Proxima Centauri's Stellar Cycle.

Authors: Wargelin, Bradford J.¹ (AUTHOR) bwargelin@cfa.harvard.edu, Saar, Steven H.¹ (AUTHOR), Irving, Zackery A.² (AUTHOR), Slavin, Jonathan D.¹ (AUTHOR), Ratzlaff, Peter¹ (AUTHOR), Nascimento Jr, José-Dias do^1,3 (NURSE)

Source: Astrophysical Journal. 12/20/2024, Vol. 977 Issue 2, p1-16. 16p.

Subject Terms: *DWARF stars, *COOL stars (Astronomy), *STELLAR activity, *ROSSBY number, *ALPHA Centauri

Steps toward a high precision solar rotation profile: Results from SDO/AIA coronal bright point data

Authors: Sudar, Davor, Skokić, Ivica, Brajša, Roman, Saar, Steven H.

Source: A&A 575, A63 (2015)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1501.01285

Stellar Granulation as the Source of High-Frequency Flicker in Kepler Light Curves

Authors: Cranmer, Steven R., Bastien, Fabienne A., Stassun, Keivan G., Saar, Steven H.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1312.5928

Calibrating Data from the Hinode/X-Ray Telescope and Associated Uncertainties

Authors: Kobelski, Adam R., Saar, Steven H., Weber, Mark A., McKenzie, David E., Reeves, Katharine K.

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics

Access URL: http://arxiv.org/abs/1312.4850

EUV and X-Ray Observations of Comet Lovejoy (C/2011 W3) in the Lower Corona

Authors: McCauley, Patrick I., Saar, Steven H., Raymond, John C., Ko, Yuan-Kuen, Saint-Hilaire, Pascal

Subject Terms: Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1304.1544

Testing a Predictive Theoretical Model for the Mass Loss Rates of Cool Stars

Authors: Cranmer, Steven R., Saar, Steven H.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1108.4369

The Color-Period Diagram and Stellar Rotational Evolution - New Rotation Period Measurements in the Open Cluster M34

Authors: Meibom, Søren, Mathieu, Robert D., Stassun, Keivan G., Liebesny, Paul, Saar, Steven H.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1103.5171