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We describe the specifications, characteristics, calibration, and analysis of data from the University of New South Wales Infrared Fabry-Perot (UNSWIRF) etalon. UNSWIRF is a near-infrared tunable imaging spectrometer, used primarily in…

We demonstrate for the first time an efficient, photonic-based astronomical spectrograph on the 8-m Subaru Telescope. An extreme adaptive optics system is combined with pupil apodiziation optics to efficiently inject light directly into a…

Instrumentation and Methods for Astrophysics · Physics 2017-08-29 N. Jovanovic , N. Cvetojevic , B. Norris , C. Betters , C. Schwab , J. Lozi , O. Guyon , S. Gross , F. Martinache , P. Tuthill , D. Doughty , Y. Minowa , N. Takato , J. Lawrence

We explore the use of Integral Field Spectroscopy (IFS) to observe extrasolar planet transits. Although this technique should find its full potential in space observations (e.g. JWST, TPF), we have tested its basics with ground based time…

The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is the science module of the Canadian-built Fine Guidance Sensor (FGS) onboard the James Webb Space Telescope (JWST). NIRISS has four observing modes: 1) broadband imaging…

FIRST (Fibered Imager foR a Single Telescope instrument) is a post-AO instrument that enables high contrast imaging and spectroscopy at spatial scales below the diffraction limit. FIRST achieves sensitivity and accuracy by a unique…

Instrumentation and Methods for Astrophysics · Physics 2021-02-15 K. Barjot , E. Huby , S. Vievard , N. Cvetojevic , S. Lacour , G. Martin , V. Deo , V. Lapeyrere , D. Rouan , O. Guyon , J. Lozi , N. Jovanovic , C. Cassagenettes , G. Perrin , F. Marchis , G. Duchêne , T. Kotani

IRIS is a near-infrared (0.84 to 2.4 microns) integral field spectrograph and wide-field imager being developed for first light with the Thirty Meter (TMT). It mounts to the advanced optics (AO) system NFIRAOS and has integrated…

We have obtained spectra for 1273 stars using the 0.9m Coud\'e Feed telescope at Kitt Peak National Observatory. This telescope feeds the coud\'e spectrograph of the 2.1m telescope. The spectra have been obtained with the #5 camera of the…

Astrophysics · Physics 2011-06-21 Francisco Valdes , Ranjan Gupta , James A. Rose , Harinder P. Singh , David J. Bell

Infrared-Faint Radio Sources (IFRSs) are a class of radio objects found in the Australia Telescope Large Area Survey (ATLAS) which have no observable mid-infrared counterpart in the Spitzer Wide-area Infrared Extragalactic (SWIRE) survey.…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-30 M. T. Huynh , R. P. Norris , B. Siana , E. Middelberg

The ISS (Integral-field Spectrograph System) has been designed as part of the EAGLE Phase A Instrument Study for the E-ELT. It consists of two input channels of 1.65x1.65 arcsec field-of-view, each reconfigured spatially by an image-slicing…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 P. R. Hastings , B. Stobie , S. Vives , P. Vola , M. Wells , C. J. Evans

This paper presents how photonics associated with new arising detection technologies is able to provide fully integrated instrument for coherent beam combination applied to astrophysical interferometry. The feasibility and operation of…

Instrumentation and Methods for Astrophysics · Physics 2010-11-02 Pierre Kern , Etienne Le Coärer , Pierre Benech

Protoplanets accreting matter seem to feature a strong emission at $\text{H}\alpha$ wavelength and the contrast of the system is then weaker at these wavelengths and thus more accessible. Measuring this emission from a protoplanet allow to…

Instrumentation and Methods for Astrophysics · Physics 2023-10-04 Kévin Barjot

The Gemini Multiobject Spectrograph (GMOS) installed on the Gemini-North telescope has a facility for integral field spectroscopy over the wavelength range 0.4-1.0um. GMOS is converted to this mode by the remote insertion of an integral…

Photonic technologies have received growing consideration for incorporation into next-generation astronomical instrumentation, owing to their miniature footprint and inherent robustness. In this paper we present results from the first…

Instrumentation and Methods for Astrophysics · Physics 2012-08-23 N. Cvetojevic , N. Jovanovic , C. Betters , J. S. Lawrence , S. C. Ellis , G. Robertson , J. Bland-Hawthorn

One of the most important techniques for astrophysics with adaptive optics is the ability to do spectroscopy at diffraction limited scales. The extreme difficulty of positioning a faint target accurately on a very narrow slit can be avoided…

Astrophysics · Physics 2015-06-24 R. Davies , M. Kasper , N. Thatte , M. Tecza , L. E. Tacconi-Garman , S. Anders , T. Herbst

An Integral Field Unit (IFU) based on image-slicers has been added to the GREGOR Infrared Spectrograph (GRIS). This upgrade to the instrument makes possible 2D spectropolarimetry in the near-infrared by simultaneously recording the full…

Instrumentation and Methods for Astrophysics · Physics 2022-06-30 C. Dominguez-Tagle , M. Collados , R. Lopez , J. J. Vaz Cedillo , M. A. Esteves , O. Grassin , N. Vega , A. Mato , J. Quintero , H. Rodriguez , S. Regalado , F. Gonzalez

There are several high-performance adaptive optics systems that deliver diffraction-limited imaging on ground-based telescopes, which renewed the interest of single-mode fiber (SMF) spectroscopy for exoplanet characterization. However, the…

Instrumentation and Methods for Astrophysics · Physics 2021-05-19 S. Y. Haffert

Atomic Force Microscopy - Infrared (AFM-IR) spectroscopy allows spectroscopic studies in the mid-infrared spectral region with a spatial resolution better than 50 nm. We show that the high spatial resolution can be used to perform…

Quantitative Methods · Quantitative Biology 2017-04-06 Luca Quaroni , Katarzyna Pogoda , Joanna-Wiltowska Zuber , Wojciech Kwiatek

We have developed an analytic model for generic image transfer using microlens-coupled fibers to determine the telescope input beam speed that optimizes the lenslet clear aperture and minimizes fiber focal-ratio degradation. Assuming fibers…

Instrumentation and Methods for Astrophysics · Physics 2020-12-29 Sabyasachi Chattopadhyay , Matthew A. Bershady , Marsha J. Wolf , andMichael P. Smith

We demonstrate a new approach to classical fiber-fed spectroscopy. Our method is to use a photonic lantern that converts an arbitrary (e.g. incoherent) input beam into N diffraction-limited outputs. For the highest throughput, the number of…

Instrumentation and Methods for Astrophysics · Physics 2013-10-28 Christopher H. Betters , Sergio G. Leon-Saval , J. Gordon Robertson , Joss Bland-Hawthorn

We describe the APERture Tile In Focus (Apertif) system, a phased array feed (PAF) upgrade of the Westerbork Synthesis Radio Telescope which has transformed this telescope into a high-sensitivity, wide field-of-view L-band imaging and…