We present high-angular-resolution optical I-band imaging of 451 late K to mid-M nearby stars. These observations have been performed with Astralux and FastCam...
NGC 6240: A triple nucleus system in the advanced or final state of merging
Aims: NGC 6240 is a well-studied nearby galaxy system in the process of merging. Based on optical, X-ray, and radio observations, it is thought to harbor two...
NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69 b
Context. Near-infrared high-resolution échelle spectrographs unlock access to fundamental properties of exoplanets, from their atmospheric escape and...
NIRPS joining HARPS at ESO 3.6 m: On-sky performance and science objectives
Context. The Near-InfraRed Planet Searcher (NIRPS) is a high-resolution, high-stability near-infrared (NIR) spectrograph equipped with an adaptive optics (AO)...
Observation of global solar oscillations with a modified optical resonance spectrometer.
In order to test the calibration technique to be used on the GOLF solar oscillation resonant scattering spectrometer on the SOHO mission, observations with a...
On-sky demonstration of matched filters for wavefront measurements using ELT-scale elongated laser guide stars
The performance of adaptive optics systems is partially dependent on the algorithms used within the real-time control system to compute wavefront slope...
Optical intensity interferometry observations using the MAGIC Imaging Atmospheric Cherenkov Telescopes
Imaging Atmospheric Cherenkov Telescopes (IACTs) currently in operation feature large mirrors and order of 1 ns time response to signals of a few photo...
Optimal Filter Systems for Photometric Redshift Estimation
In the coming years, several cosmological surveys will rely on imaging data to estimate the redshift of galaxies, using traditional filter systems with 4-5...
The hardware of the OSIRIS instrument is nearly complete. The instrument commissioning will continue with the validation of the remaining observing modes that...