Stellar Activity Cycles

Authors: Jeffers, Sandra V., Kiefer, Rene, Metcalfe, Travis S.

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2309.14138

They Do Change After All: 25 Years of GONG Data Reveal Variation of p-Mode Energy Supply Rates

Authors: Kiefer, René, Broomhall, Anne-Marie

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2010.06287

Empirical Relations for the Sensitivities of Solar-like Oscillations to Magnetic Perturbations

Authors: Kiefer, René, Broomhall, Anne-Marie

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/2006.11058

Age dating of an early Milky Way merger via asteroseismology of the naked-eye star $\nu$ Indi

Authors: Chaplin, William J., Serenelli, Aldo M., Miglio, Andrea, Morel, Thierry, Mackereth, J. Ted, Vincenzo, Fiorenzo, Basu, Hans Kjeldsen Sarbani, Ball, Warrick H., Stokholm, Amalie, Verma, Kuldeep, Mosumgaard, Jakob Rørsted, Aguirre, Victor Silva, Mazumdar, Anwesh, Ranadive, Pritesh, Antia, H. M., Lebreton, Yveline, Ong, Joel, Appourchaux, Thierry, Bedding, Timothy R., Christensen-Dalsgaard, Jørgen, Creevey, Orlagh, García, Rafael A., Handberg, Rasmus, Huber, Daniel, Kawaler, Steven D., Lund, Mikkel N., Metcalfe, Travis S., Stassun, Keivan G., Bazot, Michäel, Beck, Paul, Bell, Keaton J., Bergemann, Maria, Buzasi, Derek L., Benomar, Othman, Bossini, Diego, Bugnet, Lisa, Campante, Tiago L., Orhan, Zeynep Çelik, Corsaro, Enrico, González-Cuesta, Lucía, Davies, Guy R., Di Mauro, Maria Pia, Egeland, Ricky, Elsworth, Yvonne P., Gaulme, Patrick, Ghasemi, Hamed, Guo, Zhao, Hall, Oliver J., Hasanzadeh, Amir, Hekker, Saskia, Howe, Rachel, Jenkins, Jon M., Jiménez, Antonio, Kiefer, René, Kuszlewicz, James S., Kallinger, Thomas, Latham, David W., Lundkvist, Mia S., Mathur, Savita, Montalbán, Josefina, Mosser, Benoit, Bedón, Andres Moya, Nielsen, Martin Bo, Örtel, Sibel, Rendle, Ben M., Ricker, George R., Rodrigues, Thaíse S., Roxburgh, Ian W., Safari, Hossein, Schofield, Mathew, Seager, Sara, Smalley, Barry, Stello, Dennis, Szabó, Róbert, Tayar, Jamie, Themeßl, Nathalie, Thomas, Alexandra E. L., Vanderspek, Roland K., van Rossem, Walter E., Vrard, Mathieu, Weiss, Achim, White, Timothy R., Winn, Joshua N., Yıldız, Mutlu

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

Access URL: http://arxiv.org/abs/2001.04653

Seismic Signatures of Stellar Magnetic Activity -- What Can We Expect from TESS?

Authors: Kiefer, René, Broomhall, Anne-Marie, Ball, Warrick H.

Source: Front. Astron. Space Sci. (2019) 6:52

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1908.01191

GONG p-mode parameters through two solar cycles

Authors: Kiefer, René, Komm, Rudi, Hill, Frank, Broomhall, Anne-Marie, Roth, Markus

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1810.09324

The Effect of Toroidal Magnetic Fields on Solar Oscillation Frequencies

Authors: Kiefer, René, Roth, Markus

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1801.07932

The Direct Effect of Toroidal Magnetic Fields on Stellar Oscillations: An Analytical Expression for the General Matrix Element

Authors: Kiefer, René, Schad, Ariane, Roth, Markus

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1709.02454

Stellar magnetic activity and variability of oscillation parameters - An investigation of 24 solar-like stars observed by Kepler

Authors: Kiefer, René, Schad, Ariane, Davies, Guy, Roth, Markus

Source: A&A 598, A77 (2017)

Subject Terms: Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1611.02029

Determination of fundamental asteroseismic parameters using the Hilbert transform

Authors: Kiefer, René, Schad, Ariane, Herzberg, Wiebke, Roth, Markus

Source: A&A 578, A56 (2015)

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1504.08066

The PAC2MAN mission: a new tool to understand and predict solar energetic events

Authors: Amaya, Jorge, Musset, Sophie, Andersson, Viktor, Diercke, Andrea, Hoöller, Christian, Iliev, Sergiu, Juhász, Lilla, Kiefer, René, Lasagni, Riccardo, Lejosne, Solène, Madi, Mohammad, Rummelhagen, Mirko, Scheucher, Markus, Sorba, Arianna, Thonhofer, Stefan

Subject Terms: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics

Access URL: http://arxiv.org/abs/1412.6390

The PAC2MAN mission: a new tool to understand and predict solar energetic events

Authors: Amaya Jorge, Musset Sophie, Andersson Viktor, Diercke Andrea, Höller Christian, Iliev Sergiu, Juhász Lilla, Kiefer René, Lasagni Riccardo, Lejosne Solène, Madi Mohammad, Rummelhagen Mirko, Scheucher Markus, Sorba Arianna, Thonhofer Stefan

Source: Journal of Space Weather and Space Climate, Vol 5, p A5 (2015)

Subject Terms: Space weather, Spacecraft, Missions, Coronal mass ejection (CME), Flare, Meteorology. Climatology, QC851-999

File Description: electronic resource

Relation: https://doaj.org/toc/2115-7251

Access URL: https://doaj.org/article/40e4066479bd47d2ab74f6d9dd904b65

They do change after all: 25 yr of GONG data reveal variation of p-mode energy supply rates.

Authors: Kiefer, René¹, R.Kiefer@warwick.ac.uk, Broomhall, Anne-Marie¹

Source: Monthly Notices of the Royal Astronomical Society; 1/30/2021, Vol. 500 Issue 3, p3095-3110, 16p

Helioseismic insights into the generation and evolution of the Sun's internal magnetic field.

Authors: Broomhall, Anne-Marie, Kiefer, René, Kosovichev, Alexander, Strassmeier, Klaus, Jardine, Moira

Source: Proceedings of the International Astronomical Union; Jun2019, Vol. 15 Issue S354, p94-106, 13p