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Observations of extrasolar planets using Integral Field Spectroscopy (IFS), if coupled with an extreme Adaptive Optics system and analyzed with a Simultaneous Differential Imaging technique (SDI), are a powerful tool to detect and…

Astrophysics · Physics 2009-11-11 A. Berton , R. G. Gratton , M. Feldt , T. Henning , S. Desidera , M. Turatto , H. M. Schmid , R. Waters

Aims. We present simulations of the perfomances of the future SPHERE IFS instrument designed for imaging extrasolar planets in the near infrared (Y, J, and H bands). Methods. We used the IDL package code for adaptive optics simulation…

Instrumentation and Methods for Astrophysics · Physics 2018-12-05 D. Mesa , R. Gratton , A. Berton , J. Antichi , C. Verinaud , A. Boccaletti , M. Kasper , R. U. Claudi , S. Desidera , E. Giro , J. -L. Beuzit , K. Dohlen , M. Feldt , D. Mouillet , G. Chauvin , A. Vigan

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

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

We describe a concept for an imaging spectrograph for a large orbiting observatory such as NASA's proposed Next Generation Space Telescope (NGST) based on an imaging Fourier transform spectrograph (IFTS). An IFTS has several important…

Astrophysics · Physics 2009-10-30 James R. Graham , Mark Abrams , C. Bennett , J. Carr , K. Cook , A. Dey , J. Najita , E. Wishnow

Integral field spectroscopy (IFS) represents a powerful technique for the detection and characterization of extrasolar planets through high contrast imaging, since it allows to obtain simultaneously a large number of monochromatic images.…

Instrumentation and Methods for Astrophysics · Physics 2014-11-18 Jacopo Antichi , Kjetil Dohlen , Raffaele G. Gratton , Dino Mesa , Riccardo U. Claudi , Enrico Giro , Anthony Boccaletti , David Mouillet , Pascal Puget , Jean-Luc Beuzit

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…

We are developing the super broad band interferometer by applying the Fourier Transform Spectrometer(FTS) to aperture synthesis system in mm and sub-mm bands. We have constructed a compact system based on the Martin and Puplett type Fourier…

Astrophysics · Physics 2009-11-10 Izumi S. Ohta , Makoto Hattori , Hiroshi Matsuo

Until now, just a few extrasolar planets (~30 out of 860) have been found through the direct imaging method. This number should greatly improve when the next generation of High Contrast Instruments like Gemini Planet Imager (GPI) at Gemini…

Integral Field Spectroscopy (IFS) is an observational method to obtain spatially resolved spectra over a specific field of view (FoV) in a single exposure. In recent years, near-infrared IFS has gained importance in observing objects with…

SPHERE is an instrument designed and built by a consortium of French, German, Italian, Swiss and Dutch institutes in collaboration with ESO. The project is currently in its Phase B. The main goal of SPHERE is to gain at least one order of…

We present the performance of the Integral Field Spectrograph (IFS) of SPHERE, the high-contrast imager for the ESO VLT telescope designed to perform imaging and spectroscopy of extrasolar planets, obtained from tests performed at the…

The recovery of an exoplanet's atmospheric parameters from its spectrum requires accurate knowledge of the spectral errors and covariances. Unfortunately, the complex image processing used in high-contrast integral-field spectrograph (IFS)…

Earth and Planetary Astrophysics · Physics 2016-12-14 Johnny P. Greco , Timothy D. Brandt

We present the design and lab performance of a prototype lenslet-slicer hybrid integral field spectrograph (IFS), validating the concept for use in future instruments like SCALES/PSI-Red. By imaging extrasolar planets with IFS, it is…

Instrumentation and Methods for Astrophysics · Physics 2021-09-14 R. Deno Stelter , Andrew J. Skemer , Cyril Bourgenot

With the ever-growing number of exoplanets detected, the issue of characterization is becoming more and more relevant. Direct imaging is certainly the most efficient but the most challenging tool to probe the atmosphere of exoplanets and…

Instrumentation and Methods for Astrophysics · Physics 2009-10-23 Boccaletti Anthony

The Chinese Space Station Survey Telescope (CSST) is a next-generation Stage-IV facility renowned for its wide field of view, high image quality, and multi-band observational capabilities. Among the five instruments onboard the CSST, the…

The Fourier transform spectrometer (FTS) is a core instrument for solar observation with high spectral resolution, especially in the infrared. The Infrared System for the Accurate Measurement of Solar Magnetic Field (AIMS), working at 10-13…

Solar and Stellar Astrophysics · Physics 2021-12-08 Xianyong Bai , Zhiyong Zhang , Zhiwei Feng , Yuanyong Deng , Xingming Bao , Xiao Yang , Yongliang Song , Liyue Tong , Shuai Jing

The advent of high-contrast imaging instruments combined with medium-resolution spectrographs allows spectral and temporal dimensions to be combined with spatial dimensions to detect and potentially characterize exoplanets with higher…

Earth and Planetary Astrophysics · Physics 2024-09-11 Rakesh Nath-Ranga , Olivier Absil , Valentin Christiaens , Emily O. Garvin

We present end-to-end simulations of SCALES, the third generation thermal-infrared diffraction limited imager and low/med-resolution integral field spectrograph (IFS) being designed for Keck. The 2-5 micron sensitivity of SCALES enables…

Instrumentation and Methods for Astrophysics · Physics 2021-10-29 Zackery Briesemeister , Steph Sallum , Andrew Skemer , R. Deno Stelter , Philip Hinz , Timothy Brandt
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