Singhal, Akshat ; Srinivasan, Rahul ; Bhalerao, Varun ; Bhattacharya, Dipankar ; Rao, A. R. ; Vadawale, Santosh (2021) Using collimated CZTI as all-sky X-ray detector based on Earth occultation technique Journal of Astrophysics and Astronomy, 42 (2). ISSN 0250-6335
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Official URL: http://doi.org/10.1007/s12036-021-09743-1
Related URL: http://dx.doi.org/10.1007/s12036-021-09743-1
Abstract
All-sky monitors can measure the fluxes of astrophysical sources by measuring the changes in observed counts as the source is occulted by the Earth. Such measurements have typically been carried out by all-sky monitors like CGRO-BATSE and Fermi-GBM. We demonstrate for the first time the application of this technique to measure fluxes of sources using a collimated instrument: the Cadmium Zinc Telluride detector on AstroSat. Reliable flux measurements are obtained for the Crab nebula and pulsar, and for Cyg X–1 by carefully selecting the best occultation data sets. We demonstrate that CZTI can obtain such measurements for hard sources with intensities ≳1 Crab.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| ID Code: | 133973 |
| Deposited On: | 03 Jan 2023 04:37 |
| Last Modified: | 03 Jan 2023 04:37 |
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