312 citations · 397 across the 9 of their papers we have counts for
9 papers
Spot evolution in the eclipsing binary CoRoT 105895502
S. Czesla, S. Terzenbach, R. Wichmann +1
Stellar activity is ubiquitous in late-type stars. The special geometry of eclipsing binary systems is particularly advantageous to study the stellar surfaces and activity. We pres…
Kepler super-flare stars: what are they?
R. Wichmann, B. Fuhrmeister, U. Wolter +1
The Kepler mission has led to the serendipitous discovery of a significant number of `super flares' - white light flares with energies between 10^33 erg and 10^36 erg - on solar-ty…
GaBoDS: The Garching-Bonn Deep Survey; IV. Methods for the Image reduction of multi-chip Cameras
T. Erben, M. Schirmer, J. P. Dietrich +21
We present our image processing system for the reduction of optical imaging data from multi-chip cameras. In the framework of the Garching Bonn Deep Survey (GaBoDS; Schirmer et al.…
Fe XIII coronal line emission in cool M dwarfs
B. Fuhrmeister, J. H. M. M. Schmitt, R. Wichmann
We report on a search for the Fe xiii forbidden coronal line at 3388.1 Åin a sample of 15 M-type dwarf stars covering the whole spectral class as well as different levels of activi…
A Chandra LETGS observation of V4743 Sagittarius: A Super Soft X-ray Source and a Violently Variable Light Curve
J. -U. Ness, S. Starrfield, V. Burwitz +13
V4743 Sgr (Nova Sgr 2002 No. 3) was discovered on 20 September 2002. We obtained a 5ks ACIS-S spectrum in November 2002 and found that the nova was faint in X-rays. We then obtaine…
Field ZAMS stars in the solar neighborhood: Where have they come from ?
R. Wichmann, J. H. M. M. Schmitt
In the course of an all-sky survey for young stars in the solar neighborhood we have found a tight kinematic group of ten F-G type zero-age main sequence stars in the field. Here w…