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context: The combination of image restoration and a Fabry-P\'{e}rot interferometer (FPI) based instrument in solar observations results in specific calibration issues. FPIs generally show variations over the field-of-view, while in the…

Solar and Stellar Astrophysics · Physics 2015-05-20 R. S. Schnerr , J. de la Cruz Rodriguez , M. van Noort

We check the performance of the FRODOSpec integral-field spectrograph for observations of faint sources in crowded fields. Although the standard processing pipeline L2 yields too noisy fibre spectra, we present a new processing software…

Instrumentation and Methods for Astrophysics · Physics 2014-05-09 Vyacheslav N. Shalyapin , Luis J. Goicoechea

IRIS (InfraRed Imaging Spectrograph) is the diffraction-limited first light instrument for the Thirty Meter Telescope (TMT) that consists of a near-infrared (0.84 to 2.4 $\mu$m) imager and integral field spectrograph (IFS). The IFS makes…

The InfraRed Imaging Spectrograph (IRIS) is a first-light instrument for the Thirty Meter Telescope (TMT) that will be used to sample the corrected adaptive optics field by the Narrow-Field Infrared Adaptive Optics System (NFIRAOS) with a…

Observations of transient objects, such as short gamma-ray bursts (GRBs) and electromagnetic counterparts of gravitational wave sources, require prompt spectroscopy. To carry out prompt spectroscopy, we developed an optical-fiber integral…

Instrumentation and Methods for Astrophysics · Physics 2019-09-26 Kazuya Matsubayashi , Kouji Ohta , Fumihide Iwamuro , Ikuru Iwata , Eiji Kambe , Hironori Tsutsui , Hideyuki Izumiura , Michitoshi Yoshida , Takashi Hattori

Image Phase Alignment Super-Sampling (ImPASS) is a computational imaging algorithm for converting a sequence of displaced low-resolution images into a single high-resolution image. The method consists of a unique combination of Phase…

Optics · Physics 2025-09-01 James N. Caron

The use of integral field units is now commonplace at all major observatories offering efficient means of obtaining spectral as well as imaging information at the same time. IFU instrument designs are complex and spectral images have…

Instrumentation and Methods for Astrophysics · Physics 2015-06-04 Carina Lagerholm , Harald Kuntschner , Michele Cappellari , Davor Krajnovic , Richard McDermid , Marina Rejkuba

The Fan Observatory Bench Optical Spectrograph (FOBOS) is intended for single-object optical spectroscopy at moderate resolution (R~1500-3000) using a fiber-fed, bench-mounted design to maintain stability. Whenever possible, the instrument…

NIRPS (Near Infra-Red Planet Searcher) is an AO-assisted and fiber-fed spectrograph for high precision radial velocity measurements in the YJH-bands. NIRPS also has the specificity to be an SCAO assisted instrument, enabling the use of…

Instrumentation and Methods for Astrophysics · Physics 2022-07-29 N. Blind , U. Conod , A. de Meideros , F. Wildi , F. Bouchy , S. Bovay , D. Brousseau , A. Cabral , L. Genolet , J. Kolb , R. Schnell , A. Segovia , M. Sordet , S. Thibault , B. Wehbe , G. Zins

We present preliminary results on on-sky test of sky subtraction methods for fiber-fed spectrograph. Using dedicated observation with FLAMES/VLT in I-band, we have tested the accuracy of the sky subtraction for 4 sky subtraction methods:…

This manual is specific to the procedure of reducing galaxy long-slit spectroscopic data from the Boller and Chivens Spectrograph aboard the 90 inch Bok telescope at Kitt Peak National Observatory. The Image Reduction Analysis Facility…

Astrophysics of Galaxies · Physics 2025-02-04 Sara Holeman , Sanchayeeta Borthakur

NIRPS (Near Infra-Red Planet Searcher) is an AO-assisted and fiber-fed spectrograph for high precision radial velocity measurements that will operate in the YJH-bands. While using an AO system in such instrument is generally considered to…

Instrumentation and Methods for Astrophysics · Physics 2017-11-03 N. Blind , U. Conod , F. Wildi

High-multiplex and deep spectroscopic follow-up of upcoming panoramic deep-imaging surveys like LSST, Euclid, and WFIRST is a widely recognized and increasingly urgent necessity. No current or planned facility at a U.S. observatory meets…

We describe the recent modifications to the data reduction technique for observations acquired with the scanning Fabry-Perot interferometer (FPI) mounted on the 6-m telescope of the Special Astrophysical Observatory that allow the…

Instrumentation and Methods for Astrophysics · Physics 2015-12-09 A. V. Moiseev

FIRBACK is one of the deepest cosmological surveys performed in the far infrared, using ISOPHOT. We describe this survey, its data reduction and analysis. We present the maps of fields at 175 microns. We point out some first results: source…

The LOw Frequency ARray (LOFAR) is capable of imaging spectroscopy of the Sun in the 10-240 MHz frequency range, with high spectral, temporal, and spatial resolution. However, the complex and rapidly varying nature of solar radio emission -…

Solar and Stellar Astrophysics · Physics 2025-08-15 Soham Dey , Divya Oberoi , Pietro Zucca , Mattia Mancini , Deepan Patra , Devojyoti Kansabanik

This paper presents an integrated modeling software to analyze the PSF of wide-field telescopes affected by misalignments. Even relatively small misalignments in the optical system of a telescope can significantly deteriorate the image…

Instrumentation and Methods for Astrophysics · Physics 2021-12-14 Salvatore Savarese , Pietro Schipani , Giulio Capasso , Mirko Colapietro , Sergio D'Orsi , Marcella Iuzzolino , Laurent Marty , Francesco Perrotta , Giacomo Basile

With the maturation of near-infrared high-resolution spectroscopy, especially when used for precision radial velocity, data reduction has faced unprecedented challenges in terms of how one goes from raw data to calibrated, extracted, and…

We describe the reduction of data taken with the PACS instrument on board the Herschel Space Observatory in the Science Demonstration Phase of the Herschel-ATLAS (H-ATLAS) survey, specifically data obtained for a 4x4-deg^2 region using…

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…

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