ISSIS: the imaging and slitless spectroscopy instrument for surveys in the World Space Observatory-Ultraviolet telescope

Castro, Ana Inés Gómez de; Sánchez, Néstor; Sestito, P.; Rodríguez, P.; Gómez, Maite; Seijas, Juan; López-Martínez, F.; Quintana, J. M.; Ubierna, Marcos; Munoz, J. R.

doi:10.1117/12.925346

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…A more detailed description of the science case can be found in Gómez de Castro et al (2011a) and also in the contributions by Blay et al (2011), García et al (2011), Goicoechea et al (2011), Maiz et al (2011 in this special volume.…”

Section: The Science Case For Issismentioning

confidence: 95%

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The imaging and slitless spectroscopy instrument for surveys (ISSIS) for the world space observatory-ultraviolet (WSO-UV)

Castro

Maíz

Rodríguez³

et al. 2011

Astrophys Space Sci

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ISSIS is the Imaging and Slitless Spectroscopy Instrument for the World Space Observatory-Ultraviolet (WSO-UV) mission. ISSIS is a multipurpose instrument designed to carry out high resolution (< 0.1 arcsec) imaging in the far UV with fields of view ≥ 2 × 2 arcmin 2 . ISSIS has two acquisition channels: the High Sensitivity Channel (HSC) and the Channel for Surveys (CfS). The HSC is equipped with an MCP-type detector to guarantee high sensitivity in the 1150-1750 Å range and high rejection of lower energy radiation. The CfS is equipped with a large CCD detector (4k×4k) to obtain images from the far UV to the red (1150-8500 Å); the CfS is implemented to allow observing UV bright sources such as reflection nebulae or nearby massive star forming regions. The design drivers and the current status of the instrument are described in this contribution.A.I. Gómez de Castro ( ) ·

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Section: The Science Case For Issismentioning

confidence: 95%

“…ISSIS has evolved from is previous Phase A design into a two channels configuration due to power, space and weight constraints imposed by the platform (see Gómez de Castro et al 2011b for details). These channels are:…”

Section: Issis Designmentioning

confidence: 99%

The imaging and slitless spectroscopy instrument for surveys (ISSIS) for the world space observatory-ultraviolet (WSO-UV)

Castro

Maíz

Rodríguez³

et al. 2011

Astrophys Space Sci

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“…Presently, there are only two instruments working in the UV-Vis: the STIS instrument onboard the Hubble Space Telescope [ 27 ] and the Blue Photometer on board the GAIA satellite [ 28 ]. Other instrumental concepts were proposed and subsequently abandoned (e.g., ISSIS [ 29 ]).…”

Section: The Cs Based Uv-vis Imaging Spectrometer For Stellar Spectro...mentioning

confidence: 99%

Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis

Nardino

Guzzi

Lastri

et al. 2023

Sensors

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Compressive sensing (CS) has been proposed as a disruptive approach to developing a novel class of optical instrumentation used in diverse application domains. Thanks to sparsity as an inherent feature of many natural signals, CS allows for the acquisition of the signal in a very compact way, merging acquisition and compression in a single step and, furthermore, offering the capability of using a limited number of detector elements to obtain a reconstructed image with a larger number of pixels. Although the CS paradigm has already been applied in several application domains, from medical diagnostics to microscopy, studies related to space applications are very limited. In this paper, we present and discuss the instrumental concept, optical design, and performances of a CS imaging spectrometer for ultraviolet-visible (UV–Vis) stellar spectroscopy. The instrument—which is pixel-limited in the entire 300 nm–650 nm spectral range—features spectral sampling that ranges from 2.2 nm@300 nm to 22 nm@650 nm, with a total of 50 samples for each spectrum. For data reconstruction quality, the results showed good performance, measured by several quality metrics chosen from those recommended by CCSDS. The designed instrument can achieve compression ratios of 20 or higher without a significant loss of information. A pros and cons analysis of the CS approach is finally carried out, highlighting main differences with respect to a traditional system.

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“…1 (see also, Gómez de Castro et al 2010,2012a, 2012b. The WSO-UV Fine Guiding Sensors (FGS) focus the telescope beam on the entrance slits of the spectrographs.…”

Section: Issis Optical Design and Expected Performancesmentioning

confidence: 99%

“…Slitless spectroscopy is required as an efficient tool for classification and analysis of astronomical objects. With these conditions, a list of well-defined key programs to be carried out with ISSIS was elaborated (Gómez de Castro et al 2012a), requiring:…”

Section: Scientific Requirementsmentioning

confidence: 99%

The Imaging and Slitless Spectroscopy Instrument for Surveys (ISSIS): expected radiometric performance, operation modes and data handling

Castro

Perea-Abarca

Sánchez

et al. 2014

Astrophys Space Sci

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ISSIS: the imaging and slitless spectroscopy instrument for surveys in the World Space Observatory-Ultraviolet telescope

Cited by 6 publications

References 5 publications

The imaging and slitless spectroscopy instrument for surveys (ISSIS) for the world space observatory-ultraviolet (WSO-UV)

The imaging and slitless spectroscopy instrument for surveys (ISSIS) for the world space observatory-ultraviolet (WSO-UV)

Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis

The Imaging and Slitless Spectroscopy Instrument for Surveys (ISSIS): expected radiometric performance, operation modes and data handling

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