Dr. Sydney Barnes

Stellar Activity

Group Head

Office: HH/111
Phone: +49 331 7499 379
sbarnes@aip.de

Leibniz-Institut
für Astrophysik Potsdam (AIP)
An der Sternwarte 16
14482 Potsdam

Publications

Latest refereed publications, retrieved from NASA ADS:

Rotation periods for cool stars in the open cluster Ruprecht 147 (NGC 6774). Implications for gyrochronology

Gruner, D., Barnes, S. A., 2020, Astronomy and Astrophysics, 644, A16
Published: December 2020

doi:10.1051/0004-6361/202038984, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity

The rotation period distribution of the rich Pleiades-age southern open cluster NGC 2516. Existence of a representative zero-age main sequence distribution

Fritzewski, D. J., Barnes, S. A., James, D. J., Strassmeier, K. G., 2020, Astronomy and Astrophysics, 641, A51
Published: September 2020

doi:10.1051/0004-6361/201936860, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity, Cosmic Magnetic Fields

Rotation of Solar Analogs Crossmatching Kepler and Gaia DR2

do Nascimento, J. -D., Jr., ... Barnes, S. A., ..., 2020, The Astrophysical Journal, 898, 2, 173
Published: August 2020

doi:10.3847/1538-4357/ab9c16, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity

Evidence of New Magnetic Transitions in Late-type Dwarfs from Gaia DR2

Lanzafame, A. C., Distefano, E., Barnes, S. A., Spada, F., 2019, The Astrophysical Journal, 877, 2, 157
Published: June 2019

doi:10.3847/1538-4357/ab1aa2, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity

Spectroscopic membership for the populous 300 Myr-old open cluster NGC 3532

Fritzewski, D. J., Barnes, S. A., ... Strassmeier, K. G., 2019, Astronomy and Astrophysics, 622, A110
Published: February 2019

doi:10.1051/0004-6361/201833587, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity, Cosmic Magnetic Fields

PEPSI deep spectra. III. Chemical analysis of the ancient planet-host star Kepler-444

Mack, C. E., Strassmeier, K. G., Ilyin, I., ... Spada, F., Barnes, S. A., 2018, Astronomy and Astrophysics, 612, A46
Published: April 2018

doi:10.1051/0004-6361/201731634, NASA ADS

Participating AIP sections and groups: Cosmic Magnetic Fields, High-resolution Spectroscopy and Polarimetry, Stellar Physics and Exoplanets / Stellar Activity

Some aspects of cool main sequence star ages derived from stellar rotation (gyrochronology)

Barnes, S. A., Spada, F., Weingrill, J., 2016, Astronomische Nachrichten, 337, 8-9, 810
Published: September 2016

doi:10.1002/asna.201612377, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity, Telescope Control and Robotics

Rotation Periods for Cool Stars in the 4 Gyr old Open Cluster M67, The Solar-Stellar Connection, and the Applicability of Gyrochronology to at least Solar Age

Barnes, S. A., Weingrill, J., Fritzewski, D., Strassmeier, K. G., Platais, I., 2016, The Astrophysical Journal, 823, 1, 16
Published: May 2016

doi:10.3847/0004-637X/823/1/16, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity, Telescope Control and Robotics, Cosmic Magnetic Fields

A color-period diagram for the open cluster M 48 (NGC 2548), and its rotational age

Barnes, S. A., Weingrill, J., Granzer, T., Spada, F., Strassmeier, K. G., 2015, Astronomy and Astrophysics, 583, A73
Published: November 2015

doi:10.1051/0004-6361/201526129, NASA ADS

Participating AIP sections and groups: Stellar Physics and Exoplanets / Stellar Activity, Telescope Control and Robotics, Cosmic Magnetic Fields

Stellar rotation, binarity, and lithium in the open cluster IC 4756

Strassmeier, K. G., Weingrill, J., Granzer, T., Bihain, G., Weber, M., Barnes, S. A., 2015, Astronomy and Astrophysics, 580, A66
Published: August 2015

doi:10.1051/0004-6361/201525756, NASA ADS

Participating AIP sections and groups: Cosmic Magnetic Fields, Telescope Control and Robotics, High-resolution Spectroscopy and Polarimetry, Stellar Physics and Exoplanets / Stellar Activity

Last update: 5. October 2020