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We recently started to investigate how liquid-crystal on silicon (LCOS) spatial light modulator (SLM) would perform as programmable focal-plane phase mask (FPM) coronagraphs. Such "adaptive coronagraphs" could potentially help adapt to…

Instrumentation and Methods for Astrophysics · Physics 2021-02-08 Jonas G. Kühn , Laurent Jolissaint , Audrey Bouxin , Polychronis Patapis

We present two design concepts and the science drivers of a proposed near-infrared interferometric integral field spectrograph for the LBT. This instrument will expand the capabilities of the currently-under-construction interferometric…

Astrophysics · Physics 2009-11-13 F. Mueller Sanchez , C. Gal , F. Eisenhauer , A. Krabbe , M. Haug , C. Iserlohe , T. M. Herbst

We present here a new robotic telescope called TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope). Equipped with a high-quality CCD camera mounted on a 0.6 meter light weight optical tube, TRAPPIST has been installed in April…

Earth and Planetary Astrophysics · Physics 2015-05-27 M. Gillon , E. Jehin , P. Magain , V. Chantry , D. Hutsemekers , J. Manfroid , D. Queloz , S. Udry

In this paper we describe the design and characterization of the optical system of LSPE/Strip, a coherent polarimeter array that will observe the microwave sky from the Teide Observatory in Tenerife in two frequency bands centred at 43 and…

Instrumentation and Methods for Astrophysics · Physics 2022-01-27 S. Realini , C. Franceschet , F. Villa , M. Sandri , G. Addamo , P. Alonso-Arias , M. Bersanelli , F. Cuttaia , M. Jones , M. Maris , F. P. Mena , A. Mennella , R. Molina , G. Morgante , M. Tomasi , M. Zannoni

We present the first astronomical observations of the Livermore Imaging Fourier Transform Spectrograph for visible-band astronomy using the 3.5-meter Apache Point Observatory.

We introduce the Chromospheric Telescope (ChroTel) at the Observatorio del Teide in Izana on Tenerife as a new multi-wavelength imaging telescope for full-disk synoptic observations of the solar chromosphere. We describe the design of the…

Solar and Stellar Astrophysics · Physics 2015-05-30 C. Bethge , H. Peter , T. J. Kentischer , C. Halbgewachs , D. F. Elmore , C. Beck

SINFONI, the SINgle Faint Object Near-infrared Investigation, is an instrument for the Very Large Telescope (VLT), which will start its operation mid 2002 and allow for the first time near infrared (NIR) integral field spectroscopy at the…

Astrophysics · Physics 2015-06-24 S. Mengel , F. Eisenhauer , M. Tecza , N. Thatte , C. Roehrle , K. Bickert , J. Schreiber

We propose a spectropolarimeter a covering wavelength range of 3200--7000 {\AA} [3200{\AA} chosen as lower limit to go to the atmospheric cut-off. It's ``needed" for some Serkowski curves and would make the instrument even more unique] for…

Astrophysics of Galaxies · Physics 2024-05-24 Archana Soam , Siddharth Maharana , B-G Andersson , A. N. Ramaprakash

We discuss a cryogenic, multi-object near-infrared spectrometer as a second generation instrument for the VLT. The spectrometer combines 20 to 40 independent integral eld units (IFUs), which can be positioned by a cryogenic robot over the…

Astrophysics · Physics 2009-11-07 R. Genzel , R. Hofmann , D. Tomono , N. Thatte , F. Eisenhauer , M. Lehnert , M. Tecza , R. Bender

Next year the second generation instrument SPHERE will begin science operations at the Very Large Telecope (ESO). This instrument will be dedicated to the search for exoplanets through the direct imaging techniques, with the new generation…

Instrumentation and Methods for Astrophysics · Physics 2015-06-16 A. Zurlo , A. Vigan , C. Moutou , D. Mesa , R. Gratton , M. Langlois , J. -L. Beuzit , A. Costille , S. Desidera , K. Dolhen , C. Gry , F. Madec , D. Le Mignant , D. Mouillet , J. -F. Sauvage

SPIFFI is the near-infrared integral-field spectrometer for the VLT. Assisted by the SINFONI adaptive optics module, the instrument will be offered to the astronomical community in 2004. We outline the scientific rationale for infrared…

Astrophysics · Physics 2009-11-07 F. Eisenhauer , P. van der Werf , N. Thatte , T. de Zeeuw , M. Tecza , M. Franx , C. Iserlohe

Past millimeter-wave galaxy surveys have primarily probed the brightest starburst galaxies only and suffered heavily from confusion. The interpretation of existing surveys has also been hindered by the lack of reliable redshift indicators…

Instrumentation and Methods for Astrophysics · Physics 2025-12-05 Attila Kovács , Garrett K. Keating , Thomas R. Greve , Timothy Norton

The world's first ever ''adaptive stellar coronagraph'' facility will be the PLACID instrument, installed on Turkey's new national observatory 4-m DAG telescope. PLACID incorporates a customized spatial light modulator (SLM) acting as a…

Instrumentation and Methods for Astrophysics · Physics 2024-08-21 Ruben Tandon , Liurong Lin , Axel Potier , Laurent Jolissaint , Audrey Baur , Derya Öztürk Çetni , Jonas G. Kühn

The 2dF (Two-degree Field) facility at the prime focus of the Anglo-Australian Telescope provides multiple object spectroscopy over a 2 degree field of view. Up to 400 target fibres can be independently positioned by a complex robot. Two…

The upcoming space missions that will characterize exoplanets, such as PLATO and Ariel, will collect huge amounts of data that will need to be complemented with ground-based observations. The aim of the PLATOSpec project is to perform…

Integral-field-spectroscopy and multi-object-spectroscopy provide the high multiplex gain required for efficient use of the upcoming generation of extremely large telescopes. We present instrument developments and designs for both concepts,…

Astrophysics · Physics 2007-05-23 F. Eisenhauer , M. Tecza , N. Thatte , S. Mengel , R. Hofmann , R. Genzel

The Near-Inrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) is a very versatile instrument, offering multiobject and integral field spectroscopy with varying spectral resolution ($\sim$30 to $\sim$3000) over a wide…

The prototype Robo-AO system at the Palomar Observatory 1.5-m telescope is the world's first fully automated laser adaptive optics instrument. Scientific operations commenced in June 2012 and more than 12,000 observations have since been…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Christoph Baranec , Reed Riddle , Nicholas M. Law , Mark R. Chun , Jessica R. Lu , Michael S. Connelley , Donald Hall , Dani Atkinson , Shane Jacobson

The FORS2 instrument is one of the most widely used and productive instruments on the Very Large Telescope. This article reports on a project to improve the quality of the reduced FORS2 spectra that can be produced with the software…

Instrumentation and Methods for Astrophysics · Physics 2015-04-23 Sabine Moehler , C. E. García Dabo , Henri Boffin , Gero Rupprecht , Ivo Saviane , Wolfram Freudling

Integral field, or 3D, spectroscopy is the technique of obtaining spectral information over a two-dimensional, hopefully contiguous, field of view. While there is some form of astronomical 3D spectroscopy at all wavelengths, there has been…

Astrophysics · Physics 2007-08-17 Bryan W. Miller