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Flat-relative optimal extraction. A quick and efficient algorithm for stabilised spectrographs
M. Zechmeister, G. Anglada-Escudé, A. Reiners
Optimal extraction is a key step in processing the raw images of spectra as registered by two-dimensional detector arrays to a one-dimensional format. Previously reported algorithm…
An Independent Planet Search In The Kepler Dataset. II. An extremely low-density super-Earth mass planet around Kepler-87
Aviv Ofir, Stefan Dreizler, Mathias Zechmeister +1
[ABRIDGED]: Aims: two candidates in the KOI 1574 system are relatively long-period (about 114d and 191d) and in 5:3 resonance. We therefore search for TTVs in this particularly pro…
Radial velocity signatures of Zeeman broadening
Ansgar Reiners, Denis Shulyak, Guillem Anglada-Escude +5
Stellar activity signatures such as spots and plage can significantly limit the search for extrasolar planets. Current models of activity-induced radial velocity (RV) signals focus…