Felix Hormuth

Catalogue of ISO LWS observations of asteroids (2009)

Hormuth, Felix, Müller, Thomas G.

(Abridged) The Long Wavelength Spectrometer (LWS) onboard the Infrared Space Observatory (ISO) observed the four large main-belt asteroids (1) Ceres, (2) Pallas, (4) Vesta, and (10) Hygiea multiple...

The AstraLux large M dwarf survey (2008)

Hormuth, Felix, Brandner, Wolfgang, Janson, Markus, Hippler, Stefan, Henning, Thomas

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 objects as faint as...

Near-infrared wavefront sensing for the VLT interferometer (2008)

Hippler, Stefan, Brandner, Wolfgang, Clénet, Yann, Hormuth, Felix, Gendron, Eric, Henning, Thomas, ...

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 near-infrared...

AstraLux: the Calar Alto Lucky Imaging Camera (2008)

Hormuth, Felix, Hippler, Stefan, Brandner, Wolfgang, Wagner, Karl, Henning, Thomas

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 exposure frames,...

MicroLux: high-precision timing of high-speed photometric observations (2008)

Hormuth, Felix

MicroLux is a GPS-based high precision and high speed timing add-on to the Calar Alto Lucky Imaging camera AstraLux. It allows timestamping of individual CCD exposures at frame rates of more than 1...

AstraLux - the Calar Alto 2.2-m telescope Lucky Imaging camera (2008)

Hormuth, Felix, Brandner, Wolfgang, Hippler, Stefan, Henning, Thomas

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 exposure frames,...

NGC 346 in the Small Magellanic Cloud. IV. Triggered star formation in the H II region N66 (2008)

Gouliermis, Dimitrios A., Chu, You-Hua, Henning, Thomas, Brandner, Wolfgang, Gruendl, Robert A., Hennekemper, Eva, ...

Stellar feedback, expanding H II regions, wind-blown bubbles, and supernovae are thought to be important triggering mechanisms of star formation. Stellar associations, being hosts of significant...

The rapid outbursting star GM Cep: an EXor in Tr 37? (2008)

Sicilia-Aguilar, Aurora, Merí­n, Bruno, Hormuth, Felix, Ãbrahám, Peter, Henning, Thomas, Kun, Mária, ...

We present optical, IR, and millimeter observations of the solar-type star 13-277, also known as GM Cep, in the 4 Myr old cluster Tr 37. GM Cep experiences rapid magnitude variations of more than 2...

MicroLux: high-precision timing of high-speed photometric observations (2008)

Hormuth, Felix

MicroLux is a GPS-based high precision and high speed timing add-on to the Calar Alto Lucky Imaging camera AstraLux. It allows timestamping of individual CCD exposures at frame rates of more than 1...

AstraLux: the Calar Alto lucky imaging camera (2008)

Hormuth, Felix, Hippler, Stefan, Brandner, Wolfgang, Wagner, Karl, Henning, Thomas

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 exposure frames,...

Near-infrared wavefront sensing for the VLT interferometer (2008)

Hippler, Stefan, Brandner, Wolfgang, Clénet, Yann, Hormuth, Felix, Gendron, Eric, Henning, Thomas, ...

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 near-infrared...

The Rapid Outbursting Star GM Cep: An EX-or in Tr 37? (2007)

Sicilia-Aguilar, Aurora, Merin, Bruno, Hormuth, Felix, Abraham, Peter, Henning, Thomas, Kun, Maria, ...

We present optical, IR and millimeter observations of the solar-type star 13-277, also known as GM Cep, in the 4 Myr-old cluster Tr 37. GM Cep experiences rapid magnitude variations of more than 2...

NGC 346 in The Small Magellanic Cloud. IV. Triggered Star Formation in the HII Region N66 (2007)

Gouliermis, Dimitrios A., Chu, You-Hua, Henning, Thomas, Brandner, Wolfgang, Gruendl, Robert A., Hennekemper, Eva, ...

Stellar feedback, expanding HII regions, wind-blown bubbles, and supernovae are thought to be important triggering mechanisms of star formation. Stellar associations, being hosts of significant...

Direct imaging of the young spectroscopic binary HD 160934 (2006)

Hormuth, Felix, Brandner, Wolfgang, Hippler, Stefan, Janson, Markus, Henning, Thomas

We report on the direct detection of a close companion to HD 160934, a young active star, SB1 spectroscopic binary, and suggested member of the AB Doradus moving group. High angular resolution at the...

Atmosphere-like turbulence generation with surface-etched phase-screens (2006)

Hippler, Stefan, Hormuth, Felix, Butler, David J., Brandner, Wolfgang, Henning, Thomas

We built and characterized an optical system that emulates the optical characteristics of an 8m-class telescope like the Very Large Telescope. The system contains rotating glass phase-screens to...

Atmosphere-like turbulence generation with surface-etched phase-screens (2006)

Hippler, Stefan, Hormuth, Felix, Butler, David J., Brandner, Wolfgang, Henning, Thomas

We built and characterized an optical system that emulates the optical characteristics of an 8m-class telescope like the Very Large Telescope. The system contains rotating glass phase-screens to...

The MPIA multipurpose laboratory atmospheric turbulence simulator MAPS (2006)

Hippler, Stefan, Hormuth, Felix, Brandner, Wolfgang, Butler, David J., Henning, Thomas, Egner, Sebastian

We built an optical system that emulates the optical characteristics of an 8m-class telescope like the VLT and that contains rotating glass plates phase screens to generate realistic atmosphere-like...