Abstract Details
| 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 and Co-Authors : Debbijoy Bhattacharya 1, M.C. Ramadevi 2, Sreejith P. 1, P. Sreekumar 1 Abstract Type : 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. |