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The CARMENES search for exoplanets around M dwarfs. Radial velocities and activity indicators from cross-correlation functions with weighted binary masks
M. Lafarga, I. Ribas, C. Lovis +24
For years, the standard procedure to measure radial velocities (RVs) of spectral observations consisted in cross-correlating the spectra with a binary mask, that is, a simple stell…
The calibration procedure of the LINC-NIRVANA ground and high layer WFS
Carmelo Arcidiacono, Kalyan Kumar Radhakrishnan Santhakumari, Valentina Viotto +12
LINC--NIRVANA (LN) is an MCAO module currently mounted on the Rear Bent Gregorian focus of the Large Binocular Telescope (LBT). It mounts a camera originally designed to realize th…
Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators
M. Zechmeister, A. Reiners, P. J. Amado +18
Context: The CARMENES survey is a high-precision radial velocity (RV) programme that aims to detect Earth-like planets orbiting low-mass stars. Aims: We develop least-squares fitti…
Pathfinder first light: alignment, calibration, and commissioning of the LINC-NIRVANA ground-layer adaptive optics subsystem
Derek Kopon, Al Conrad, Carmelo Arcidiacono +15
We present descriptions of the alignment and calibration tests of the Pathfinder, which achieved first light during our 2013 commissioning campaign at the LBT. The full LINC-NIRVAN…
Laboratory Results and Status Update for Pathfinder at LBT, The LINC-NIRVANA NGS Ground- Layer AO Subsystem
Derek Kopon, Al Conrad, Thomas Bertram +20
The full LINC-NIRVANA instrument will be one of the most complex ground-based astronomical systems ever built. It will consist of multiple subsystems, including two multi-conjugate…
Astrometry with the MCAO instrument MAD - An analysis of single-epoch data obtained in the layer-oriented mode
Eva Meyer, Martin Kuerster, Carmelo Arcidiacono +2
Context: Current instrument developments at the largest telescopes worldwide have provisions for Multi-Conjugated Adaptive Optics (MCAO) modules. The large field of view and more u…
The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms
M. Zechmeister, M. Kürster
The Lomb-Scargle periodogram is a common tool in the frequency analysis of unequally spaced data equivalent to least-squares fitting of sine waves. We give an analytic solution for…