Poster + Paper
13 December 2020 Spectroscopic Investigation Of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects from a stable space platform
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Conference Poster
Abstract
One of the most exciting parts of the astrophysical spectrum is the ultraviolet, with a greater density of absorption and emission lines than any other part of the electromagnetic spectra. Our primary science objective is to study the physical conditions in extended regions of the sky. These encompass many phases of the ISM, from the hot gas in supernova remnants (SNR) to the warm gas in planetary nebulae to cold gas in molecular clouds including emission lines from hot gas (CIV 1548/1550 Å) and warm gas (NIII 1750Å). SING is a near ultraviolet (NUV) spectrograph which operates in the wavelength range from 1400 Å to 2700Å, with a spectral resolution of about 2Å at 2200 Å. The spectrograph is intended to map nebulae and other extended objects at moderate spatial and spectral resolution in the NUV from a stable platform of the space station – Chinese modular space station (CSS). As the event rate in the UV is low, the spectrograph employs a photon-counting detector because of its low noise performance. In this work, we present the overview of the opto-mechanical design of SING and the estimates of its performance.
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Bharat Chandra, Mikhail Sachkov, Shanti Prabha, Ajin Prakash, Binukumar G. Nair, Margarita Safonova, Richa Rai, Rekhesh Mohan, Jayant Murthy, and Vladimir Shmagin "Spectroscopic Investigation Of Nebular Gas (SING): a dedicated NUV spectrograph to study extended objects from a stable space platform", Proc. SPIE 11444, Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray, 1144476 (13 December 2020); https://doi.org/10.1117/12.2563051
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KEYWORDS
Spectroscopes

Absorption

Clouds

Electromagnetism

Hydrogen

Signal to noise ratio

Spectral resolution

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