English
Related papers

Related papers: The VIMOS Integral Field Unit: data reduction meth…

200 papers

KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable cryogenic pick-off arms. Inevitably, data processing is a complex task that requires careful calibration and quality control. In this paper we describe all…

Fibre-fed spectrographs now have throughputs equivalent to slit spectrographs. However, the sky subtraction accuracy that can be reached has often been pinpointed as one of the major issues associated with the use of fibres. Using technical…

In a few years, the second generation instruments of the Very Large Telescope Interferometer (VLTI) will routinely provide observations with 4 to 6 telescopes simultaneously. To reach their ultimate performance, they will need a fringe…

We propose a new methodology for probing the cosmological variability of alpha from pairs of FeII lines (SIDAM, single ion differential alpha measurement) observed in individual exposures from a high resolution spectrograph. By this we…

Astrophysics · Physics 2009-11-10 S. A. Levshakov , M. Centurion , P. Molaro , S. D'Odorico

Due to its simultaneous deep imaging and integral field spectroscopic capability, an Imaging Fourier Transform Spectrograph (IFTS) is ideally suited to the Next Generation Space Telescope (NGST) mission, and offers opportunities for…

Astrophysics · Physics 2007-05-23 James R. Graham

The X-ray Integral Field Unit (X-IFU) is the high resolution X-ray spectrometer of the ESA Athena X-ray observatory. Over a field of view of 5' equivalent diameter, it will deliver X-ray spectra from 0.2 to 12 keV with a spectral resolution…

Instrumentation and Methods for Astrophysics · Physics 2018-07-18 Didier Barret , Thien Lam Trong , Jan-Willem den Herder , Luigi Piro , Massimo Cappi , Juhani Huovelin , Richard Kelley , J. Miguel Mas-Hesse , Kazuhisa Mitsuda , Stéphane Paltani , Gregor Rauw , Agata Rozanska , Joern Wilms , Simon Bandler , Marco Barbera , Xavier Barcons , Enrico Bozzo , Maria Teresa Ceballos , Ivan Charles , Elisa Costantini , Anne Decourchelle , Roland den Hartog , Lionel Duband , Jean-Marc Duval , Fabrizio Fiore , Flavio Gatti , Andrea Goldwurm , Brian Jackson , Peter Jonker , Caroline Kilbourne , Claudio Macculi , Mariano Mendez , Silvano Molendi , Piotr Orleanski , François Pajot , Etienne Pointecouteau , Frederick Porter , Gabriel W. Pratt , Damien Prêle , Laurent Ravera , Kosuke Sato , Joop Schaye , Keisuke Shinozaki , Tanguy Thibert , Luca Valenziano , Veronique Valette , Jacco Vink , Natalie Webb , Michael Wise , Noriko Yamasaki , Françoise Delcelier-Douchin , Jean-Michel Mesnager , Bernard Pontet , Alice Pradines , Graziella Branduardi-Raymont , Esra Bulbul , Mauro Dadina , Stefano Ettori , Alexis Finoguenov , Yasushi Fukazawa , Agnieszka Janiuk , Jelle Kaastra , Pasquale Mazzotta , Jon Miller , Giovanni Miniutti , Yaël Nazé , Fabrizio Nicastro , Salvatore Sciortino , Aurora Simionescu , Jose Miguel Torrejon , Benoît Frezouls , Hervé Geoffray , Philippe Peille , Corinne Aicardi , Jérôme André , Antoine Clénet , Christophe Daniel , Christophe Etcheverry , Emilie Gloaguen , Gilles Hervet , Antoine Jolly , Aurélien Ledot , Irwin Maussang , Alexis Paillet , Roseline Schmisser , Bruno Vella , Jean-Charles Damery , Kevin Boyce , Michael DiPirro , Simone Lotti , Denis Schwander , Stephen Smith , Bert-Joost van Leeuwen , Henk van Weers , Nicolas Clerc , Beatriz Cobo , Thomas Dauser , Jelle de Plaa , Christian Kirsch , Edoardo Cucchetti , Megan Eckart , Philippe Ferrando , Lorenzo Natalucci

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…

Hyperspectral imaging (HSI) captures hundreds of narrow, contiguous wavelength bands, making it a powerful tool in biology, agriculture, and environmental monitoring. However, interpreting Vision Transformers (ViTs) in this setting remains…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Xi Xiao , Aristeidis Tsaris , Anika Tabassum , John Lagergren , Larry M. York , Tianyang Wang , Xiao Wang

Maximizing the grating efficiency is a key goal for the first light instrument IRIS (Infrared Imaging Spectrograph) currently being designed to sample the diffraction limit of the TMT (Thirty Meter Telescope). Volume Phase Holographic (VPH)…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Shaojie Chen , Elliot Meyer , Shelley A. Wright , Anna M. Moore , James E. Larkin , Jerome Maire , Etsuko Mieda , Luc Simard

ESO's two FOcal Reducer and low dispersion Spectrographs (FORS) are the primary imaging cameras for the VLT. Since they are not direct-imaging cameras, the accuracy of photometry which can routinely be obtained is limited by significant sky…

Astrophysics · Physics 2007-05-23 W. Freudling , M. Romaniello , F. Patat , P. Moller , E. Jehin , K. O'Brien

The fields of view of Extremely Large Telescopes will contain vast numbers of spatial sampling elements (spaxels) as their Adaptive Optics systems approach the diffraction limit over wide fields. Since this will exceed the detection…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 G. J. Murray , J. R. Allington-Smith

A fully autonomous data reduction pipeline has been developed for FRODOSpec, an optical fibre-fed integral field spectrograph currently in use at the Liverpool Telescope. This paper details the process required for the reduction of data…

Instrumentation and Methods for Astrophysics · Physics 2015-06-03 R. M. Barnsley , R. J. Smith , I. A. Steele

Instrumentation designed to characterize potentially habitable planets may combine adaptive optics and high-resolution spectroscopy techniques to achieve the highest possible sensitivity to spectral signs of life. Detecting the weak signal…

Instrumentation and Methods for Astrophysics · Physics 2018-11-13 Garreth Ruane , Ji Wang , Dimitri Mawet , Nemanja Jovanovic , Jacques-Robert Delorme , Bertrand Mennesson , J. Kent Wallace

Volume-phase holographic gratings (VPHGs) are widely used in astronomical spectrographs due to their adaptability and high diffraction efficiency. Most VPHGs in operation use dichromated gelatin as a recording material, whose performance is…

Moving the detection wavelength in vibrational sum-frequency generation (VSFG) spectroscopy to the near-infrared (> 700 nm) can potentially enable the study of molecular interfaces absorbing in the visible and give access to buried…

Optics · Physics 2024-05-10 Zsuzsanna Heiner , Valentin Petrov , Mark Mero

Field ion microscopy (FIM) allows to image individual surface atoms by exploiting the effect of an intense electric field. Widespread use of atomic resolution imaging by FIM has been hampered by a lack of efficient image processing/data…

The reduction of integral-field spectrograph (IFS) data is demanding work. Many repetitive operations are required in order to convert raw data into, typically a large number of, spectra. This effort can be markedly simplified through the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-18 C. Sandin , T. Becker , M. M. Roth , J. Gerssen , A. Monreal-Ibero , P. Böhm , P. Weilbacher

Among spectroscopic techniques, Integral Field Spectroscopy (IFS) is regarded as one of the most versatile and powerful, but it is limited by small FoVs, complex designs, and high costs. We hereby present ROSSINI: the ROtational Slitless…

Instrumentation and Methods for Astrophysics · Physics 2026-05-29 Jerry Jun-Yan Zhang , Francesco Sinigaglia

The X-ray Integral Field Unit (X-IFU) on board the Advanced Telescope for High-ENergy Astrophysics (Athena) will provide spatially resolved high-resolution X-ray spectroscopy from 0.2 to 12 keV, with 5 arc second pixels over a field of view…

Instrumentation and Methods for Astrophysics · Physics 2016-08-30 Didier Barret , Thien Lam Trong , Jan-Willem den Herder , Luigi Piro , Xavier Barcons , Juhani Huovelin , Richard Kelley , J. Miguel Mas-Hesse , Kazuhisa Mitsuda , Stéphane Paltani , Gregor Rauw , Agata Rożanska , Joern Wilms , Marco Barbera , Enrico Bozzo , Maria Teresa Ceballos , Ivan Charles , Anne Decourchelle , Roland den Hartog , Jean-Marc Duval , Fabrizio Fiore , Flavio Gatti , Andrea Goldwurm , Brian Jackson , Peter Jonker , Caroline Kilbourne , Claudio Macculi , Mariano Mendez , Silvano Molendi , Piotr Orleanski , François Pajot , Etienne Pointecouteau , Frederick Porter , Gabriel W. Pratt , Damien Prêle , Laurent Ravera , Etienne Renotte , Joop Schaye , Keisuke Shinozaki , Luca Valenziano , Jacco Vink , Natalie Webb , Noriko Yamasaki , Françoise Delcelier-Douchin , Michel Le Du , Jean-Michel Mesnager , Alice Pradines , Graziella Branduardi-Raymont , Mauro Dadina , Alexis Finoguenov , Yasushi Fukazawa , Agnieszka Janiuk , Jon Miller , Yaël Nazé , Fabrizio Nicastro , Salvatore Sciortino , Jose Miguel Torrejon , Hervé Geoffray , Isabelle Hernandez , Laure Luno , Philippe Peille , Jérôme André , Christophe Daniel , Christophe Etcheverry , Emilie Gloaguen , Jérémie Hassin , Gilles Hervet , Irwin Maussang , Jérôme Moueza , Alexis Paillet , Bruno Vella , Gonzalo Campos Garrido , Jean-Charles Damery , Chantal Panem , Johan Panh , Simon Bandler , Jean-Marc Biffi , Kevin Boyce , Antoine Clénet , Michael DiPirro , Pierre Jamotton , Simone Lotti , Denis Schwander , Stephen Smith , Bert-Joost van Leeuwen , Henk van Weers , Thorsten Brand , Beatriz Cobo , Thomas Dauser , Jelle de Plaa , Edoardo Cucchetti