activity
19952021
most citedClosest Star Seen Orbiting the Supermassive Black Hole at the Centre of the Milky Way

1.2k citations · 11.5k across the 208 of their papers we have counts for

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Showing 2008Show all

7 papers · 1 filter

astro-ph2008★ 2 cited

The AstraLux large M dwarf survey

Felix Hormuth, Wolfgang Brandner, Markus Janson +2

AstraLux is the Lucky Imaging camera for the Calar Alto 2.2-m telescope and the 3.5-m NTT at La Silla. It allows nearly diffraction limited imaging in the SDSS i' and z' bands of o…

astro-ph2008★ 9 cited

Near-infrared wavefront sensing for the VLT interferometer

Stefan Hippler, Wolfgang Brandner, Yann Clénet +11

The very large telescope (VLT) interferometer (VLTI) in its current operating state is equipped with high-order adaptive optics (MACAO) working in the visible spectrum. A low-order…

astro-ph2008★ 25 cited

METIS - the Mid-infrared E-ELT Imager and Spectrograph

Bernhard R. Brandl, Rainer Lenzen, Eric Pantin +19

METIS, the Mid-infrared ELT Imager and Spectrograph (formerly called MIDIR), is a proposed instrument for the European Extremely Large Telescope (E-ELT), currently undergoing a pha…

astro-ph2008★ 40 cited

AstraLux - the Calar Alto 2.2-m telescope Lucky Imaging camera

Felix Hormuth, Wolfgang Brandner, Stefan Hippler +1

AstraLux is a Lucky Imaging camera for the Calar Alto 2.2-m telescope, based on an electron-multiplying high speed CCD. By selecting only the best 1-10% of several thousand short e…

astro-ph2008★ 47 cited

AstraLux: the Calar Alto Lucky Imaging Camera

Felix Hormuth, Stefan Hippler, Wolfgang Brandner +2

AstraLux is the Lucky Imaging camera for the Calar Alto 2.2-m telescope, based on an electron-multiplying high speed CCD. By selecting only the best 1-10% of several thousand short…

astro-ph2008★ 47 cited

A comprehensive examination of the Eps Eri system -- Verification of a 4 micron narrow-band high-contrast imaging approach for planet searches

Markus Janson, Sabine Reffert, Wolfgang Brandner +3

Due to its proximity, youth, and solar-like characteristics with a spectral type of K2V, Eps Eri is one of the most extensively studied systems in an extrasolar planet context. Bas…