| Name: | Debbijoy Bhattacharya |
| Affiliation: | Manipal Centre for Natural Sciences, Manipal Academy of Higher Education |
| Conference ID : | ASI2024_698 |
| Title : | Design requirements for a future Wide Field X-ray Spectroscopic mission: followup to AstroSat |
| Authors : | Debbijoy Bhattacharya 1, M.C. Ramadevi 2, Sreejith P. 1, P. Sreekumar 1
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| Authors Affiliation: | 1 Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education,
Manipal 576104, India
2 Space Astronomy Group, PDMSA, U. R. Rao Satellite Centre, Bangalore 560017, India
3 Indian Space Research Organisation, Bangalore, India
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| Mode of Presentation: | Oral |
| Abstract Category : | Facilities, Technologies and Data science |
| Abstract : | AstroSat, as India’s first multiwavelength astronomy satellite, continues to contribute much towards multiwavelength monitoring of sources from UV to hard X-rays. While the Scanning Sky Monitor and CZTI instruments on AstroSat have the ability to monitor large parts of the sky due to wider field-of-views (FOVs), the low-resolution imaging and lower signal-to-noise ratios have limited observations to bright sources only. In the emerging era of large, sensitive all-sky studies at many wavelengths by LSST, gravitational wave laboratories, eRositta sky survey, SKA, etc, the demand for expanded sky coverage of x-ray counterparts is expected to be high. Here, we present calculations used to optimise requirements for a wide-field x-ray monitor with good spectral resolution in the soft x-ray band of 0.5-10 keV and with arcmin imaging capabilities to detect transient x-rays. This instrument will also simultaneously study the soft x-ray flux variations of a large set of previously known x-ray sources within its FOV. The approach that led to convergence on detectors and optics and the result of studies for optimising grasp = (effective area x FOV), a measure of the scientific capability of the instrument for the proposed multi-source study will be presented.
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