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Astronomy and Astrophysics, ISSN 0004-6361, 2009, Volume 497, Issue 2, pp. 511 - 520
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 01/2018, Volume 609, p. A39
Most physical data sets contain a stochastic contribution produced by measurement noise or other random sources along with the signal. Usually, neither the... 
Methods: statistical | Methods: data analysis | Methods: numerical | methods: statistical | methods: data analysis | methods: numerical | ASTRONOMY & ASTROPHYSICS
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 06/2010, Volume 515, Issue 11, p. A98
Context. Do extrasolar planets affect the activity of their host stars? Indications for chromospheric activity enhancement have been found for a handful of... 
Stars: coronae | Stars: statistics | X-rays: stars | Stars: activity | Planet-star interactions | EXTRASOLAR GIANT PLANETS | HOT JUPITERS | stars: statistics | ASTRONOMY & ASTROPHYSICS | X-RAY-EMISSION | planet-star interactions | stars: coronae | stars: activity | COMPANION | Physics - Solar and Stellar Astrophysics
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 03/2019, Volume 623, p. A107
Stellar activity is ubiquitous in late-type stars. The special geometry of eclipsing binary systems is particularly advantageous to study the stellar surfaces... 
Binaries: eclipsing | Stars: individual: CoRoT 105895502 | Stars: activity | binaries: eclipsing | stars: individual: CoRoT 105895502 | MODELS | ASTRONOMY & ASTROPHYSICS | MASS | STARS | stars: activity | DIFFERENTIAL ROTATION | LONGITUDES | Physics - Solar and Stellar Astrophysics
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 04/2017, Volume 600, p. A120
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 06/2018, Volume 477, Issue 1, pp. 808 - 815
Magnetic stellar activity of exoplanet hosts can lead to the production of large amounts of high-energy emission, which irradiates extrasolar planets, located... 
HAT-P-11 | WASP-19 | Stars: Individual: Kepler-63 | Stars: Low-mass | Kepler-210 | Stars: Coronae | Late-type | Stars: Activity | Planetary systems
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 2016, Volume 594, p. A41
We use high accuracy photometric data obtained with the Kepler satellite to monitor the activity modulations of the Kepler-210 planet host star over a time... 
Starspots | Stars: Activity | Stars: rotation | STATISTICS | MISSION | ASTRONOMY & ASTROPHYSICS | ARCHITECTURE | SYSTEMS | starspots | stars: activity | stars: rotation | Differential rotation | Planets | Modulation | Stars | Spots | Stellar evolution | Seasons | Stellar surfaces | Physics - Solar and Stellar Astrophysics
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 01/2009, Volume 493, Issue 3, pp. 1099 - 1107
We present measurements of chromospheric Ca II H&K activity for 481 solar-like stars. To determine the activity we used the Mount Wilson method and a newly... 
Stars: Rotation | Stars: Chromospheres | Stars: Activity | MAIN-SEQUENCE STARS | COOL STARS | NSTARS PROJECT | F-STARS | DIFFERENTIAL ROTATION | K-EMISSION | stars: chromospheres | SPECTROSCOPY | PHOTOMETRY | ASTRONOMY & ASTROPHYSICS | stars: activity | stars: rotation | CHROMOSPHERIC VARIATIONS | MAGNETIC-STRUCTURE
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 10/2018, Volume 480, Issue 2, pp. 2137 - 2143
We present an empirical study of the strength of magnetic stellar activity among cool giant stars on the red and asymptotic giant branches using the Ca II H&K... 
Stars: chromospheres | Supergiants | Stars: activity | MAIN-SEQUENCE STARS | X-RAY OBSERVATIONS | MG-II | K-EMISSION | stars: chromospheres | ASTRONOMY & ASTROPHYSICS | LINE | HYBRID STARS | supergiants | stars: activity | CHROMOSPHERIC VARIATIONS | MAGNETIC-STRUCTURE | CORONAL GRAVEYARD | CA-II H
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 05/2016, Volume 589, p. A48
We present extremely high time resolution observations of the visual flare star binary UV Cet obtained with the Optical Pulsar Timing Analyzer (OPTIMA) at the... 
Stars: flare | Stars: low-mass | Stars: Activity | ROSAT | SEARCH | RESOLUTION | BURSTS | CORONA | RAY | stars: flare | ASTRONOMY & ASTROPHYSICS | CN LEONIS | stars: low-mass | stars: activity | EMISSION | EV LACERTAE | Bursts | Binary stars | Analyzers | Flares | Decay | Time | Photons | Flare stars
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 2016, Volume 594, p. A42
The deviations of the mid-transit times of an exoplanet from a linear ephemeris are usually the result of gravitational interactions with other bodies in the... 
Occultations | Starspots | Methods: data analysis | Stars: activity | Eclipses | Planetary systems | BINARY STARS | methods: data analysis | MISSION | PLANET | starspots | eclipses | DIFFERENTIAL ROTATION | KEPLER | planetary systems | GAMMA DORADUS STARS | EVOLUTION | CATALOG | ASTRONOMY & ASTROPHYSICS | VARIABLES | stars: activity | occultations | PULSATIONS | Data points | Extrasolar planets | Stars | Spots | Light curve | Time measurements | Transit | Photometry
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 10/2009, Volume 505, Issue 3, pp. 1277 - 1282
Light curves have long been used to study stellar activity and have more recently become a major tool in the field of exoplanet research. We discuss the... 
Techniques: photometric | Starspots | Stars: activity | Stars: individual: CoRoT-2a | Planetary systems | stars: individual: CoRoT-2a | planetary systems | MODELS | techniques: photometric | COROT SPACE MISSION | TRANSITING EXOPLANETS | ASTRONOMY & ASTROPHYSICS | starspots | stars: activity | Physics - Solar and Stellar Astrophysics
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 2016, Volume 591, p. A20
Journal Article
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