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We have created a new autonomous laser-guide-star adaptive-optics (AO) instrument on the 60-inch (1.5-m) telescope at Palomar Observatory called Robo-AO. The instrument enables diffraction-limited resolution observing in the visible and…

Instrumentation and Methods for Astrophysics · Physics 2012-10-03 C. Baranec , R. Riddle , A. N. Ramaprakash , N. Law , S. Tendulkar , S. Kulkarni , R. Dekany , K. Bui , J. Davis , M. Burse , H. Das , S. Hildebrandt , S. Punnadi , R. Smith

HARMONI is the first light visible and near-IR integral field spectrograph for the ELT covering a large spectral range from 450nm to 2450nm with resolving powers from 3500 to 18000 and spatial sampling from 60mas to 4mas. It can operate in…

We are building a next-generation laser adaptive optics system, Robo-AO-2, for the UH 2.2-m telescope that will deliver robotic, diffraction-limited observations at visible and near-infrared wavelengths in unprecedented numbers. The…

Strong gravitational lensing is a powerful probe of the distribution of matter on sub-kpc scales. It can be used to test the existence of completely dark subhalos surrounding galaxies, as predicted by the standard cold dark matter model, or…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-30 Ioana A. Zelko , Anna M. Nierenberg , Tommaso Treu

MICADO is the Multi-AO Imaging Camera for Deep Observations, and it will be one of the first light instruments of the Extremely Large Telescope (ELT). Doing high precision multi-object differential astrometry behind ELT is particularly…

The MCAO Assisted Visible Imager and Spectrograph (MAVIS) Adaptive Optics Module has very demanding goals to support science in the optical: providing 15% SR in V band on a large FoV of 30arcsec diameter in standard atmospheric conditions…

Instrumentation and Methods for Astrophysics · Physics 2021-01-01 Guido Agapito , Daniele Vassallo , Cedric Plantet , Valentina Viotto , Enrico Pinna , Benoit Neichel , Thierry Fusco , Francois Rigaut

Accurate and precise measurements of the Hubble constant are critical for testing our current standard cosmological model and revealing possibly new physics. With Hubble Space Telescope (HST) imaging, each strong gravitational lens system…

EAGLE is a Phase A study of a multi-IFU, near-IR spectrometer for the European Extremely Large Telescope (E-ELT). The design employs wide-field adaptive optics to deliver excellent image quality across a large (38.5 arcmin sq.) field. When…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 C. J. Evans , M. D. Lehnert , J. -G. Cuby , S. L. Morris , M. Puech , N. Welikala , A. M. Swinbank , H. Schnetler

The Southern Robotic Adaptive Optics (SRAO) instrument will bring the proven high-efficiency capabilities of Robo-AO to the Southern-Hemisphere, providing the unique capability to image with high-angular-resolution thousands of targets per…

Instrumentation and Methods for Astrophysics · Physics 2016-11-23 Carl Ziegler , Nicholas M. Law , Andrei Tokovinin

METIS, the Mid-Infrared ELT Imager and Spectrograph, is one of the four first-generation ELT instruments scheduled to see first light in 2028. Its two main science modules are supported by an adaptive optics system featuring a pyramid…

Instrumentation and Methods for Astrophysics · Physics 2023-11-23 Markus Feldt , Horst Steuer , Carlos Correia , Andreas Obereder , Stefan Raffetseder , Thomas Bertram , Julia Shatokina , Faustine Cantalloube

The next generation ground-based extremely large telescopes (ELTs) present incredible opportunities to discover and characterize diverse planetary systems, even potentially habitable worlds. Adaptive-optics assisted thermal-IR (3-14 micron)…

MAORY is the adaptive optics module of the E-ELT that will feed the MICADO imaging camera through a gravity invariant exit port. MAORY has been foreseen to implement MCAO correction through three high order deformable mirrors driven by the…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Carmelo Arcidiacono , Laura Schreiber , Giovanni Bregoli , Emiliano Diolaiti , Italo Foppiani , Giuseppe Cosentino , Matteo Lombini , R. C. Butler , Paolo Ciliegi

This White Paper presents the scientific motivations for a multi-object spectrograph (MOS) on the European Extremely Large Telescope (E-ELT). The MOS case draws on all fields of contemporary astronomy, from extra-solar planets, to the study…

The next generation of Extremely Large Telescopes (ELT), with diameters up to 39 meters, is planned to begin operation in the next decade and promises new challenges in the development of instruments since the instrument size increases in…

Instrumentation and Methods for Astrophysics · Physics 2017-11-03 N. Blind , E. Le Coarer , P. Kern , S. Gousset

Extreme adaptive optics systems are now in operation across the globe. These systems, capable of high order wavefront correction, deliver Strehl ratios of 90% in the near-infrared. Originally intended for the direct imaging of exoplanets,…

Instrumentation and Methods for Astrophysics · Physics 2016-11-09 Nemanja Jovanovic , Christian Schwab , Nick Cvetojevic , Olivier Guyon , Frantz Martinache

The Extremely Large Telescopes currently under construction have a collecting area that is an order of magnitude larger than the present largest optical telescopes. For seeing-limited observations the performance will scale as the…

Astrophysics of Galaxies · Physics 2016-03-10 P. Turri , A. W. McConnachie , P. B. Stetson , G. Fiorentino , D. R. Andersen , J. -P. Véran , G. Bono

We report on high angular resolution near-infrared (NIR) observations of three galaxy clusters at different redshifts using adaptive optics (AO). In the case of the barred spiral \object{UGC 1347} in Abell 262 we presented the first AO…

Astrophysics · Physics 2007-05-23 W. Hackenberg , A. Eckart , R. I. Davies , S. Rabien , T. Ott , M. Kasper , S. Hippler , A. Quirrenbach

We have done theoretical calculations and simulations for infrared spectroscopy at the MMT 6.5 m with laser guide star AO, which provides almost full sky coverage. The results show we can expect 40-60% of the photons from a unresolved…

Astrophysics · Physics 2015-06-24 Jian Ge , Roger Angel , David Sandler , Chris Shelton , Don McCarthy , Jim Burge

In this contribution we would like to emphasize the usefulness of data mining multiwavelength surveys like the Sloan Digital Sky Survey (SDSS) or the ROSAT All Sky Survey (RASS) -- which have become available to the public recently -- in…

Astrophysics · Physics 2007-05-23 J. Zuther , A. Eckart , W. Voges , T. Bertram , C. Straubmeier

In this paper we present the Adaptive Optics Lucky Imager (AOLI), a state-of-the-art instrument which makes use of two well proved techniques for extremely high spatial resolution with ground-based telescopes: Lucky Imaging (LI) and…