| Name: | Rwitika Chatterjee |
| Affiliation: | U R Rao Satellite Center, Bengaluru |
| Conference ID : | ASI2023_908 |
| Title : | Science from X-ray Spectroscopy and Timing (XSPECT) onboard XPoSat |
| Authors : | M.C. Ramadevi1, Vivek Kumar Agrawal1, Rwitika Chatterjee1, Koushal Vadodariya1, Anurag Tyagi1, Radhakrishna V.1
1 Space Astronomy Group, U. R. Rao Satellite Centre, Bangalore 560017, India
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| Mode of Presentation: | Oral |
| Abstract Category : | Stars, ISM and Galaxy |
| Abstract : | XSPECT is an X-ray Spectrometer and Timing experiment payload on the XpoSat mission to be launched in the immediate future. XPoSat also carries an X-ray Polarimeter POLIX. XSPECT has both fast timing (~1 msec) and good spectroscopy (<200 eV at 6 keV) capabilty to carry out spectro-temporal studies of X-ray sources in the soft X-ray energy (0.8 – 12 keV). Long term spectro-temporal studies along with polarimetry could play a crucial role in understanding the emission mechanisms and accretion geometry around compact objects. Therefore, XSPECT together with POLIX will provide an excellent platform to probe strong gravity effects around compact objects, which is first of its kind and will bring out niche science results.
Few key science cases that XSPECT aims to address are: (i) Long-term Spectro-temporal observations of Black Hole Binaries at best possible time cadence of about few hours (ii) measuring the spin and mass of the blackholes through continuum observations for bright sources like Cyg X-1, other transient sources during an outburst etc., (iii) iron line studies and evolution of iron line profile over days for bright transient sources (iv) evolution of X-ray spectrum NS-LMXBs, nature of soft thermal component etc. Specific science cases for select sources with simulation results considering the sensitivity limits and response of XSPECT instrument will be discussed in this presentation.
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