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Study of X-ray transients with Scanning Sky Monitor (SSM) onboard AstroSat

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Abstract

Scanning Sky Monitor (SSM) onboard AstroSat is an X-ray sky monitor in the energy range 2.5–10 keV. SSM scans the sky for X-ray transient sources in this energy range of interest. If an X-ray transient source is detected in outburst by SSM, the information will be provided to the astronomical community for follow-up observations to do a detailed study of the source in various other bands. SSM instrument, since its power-ON in orbit, has observed a number of X-ray sources. This paper discusses observations of few X-ray transients by SSM. The flux reported by SSM for few sources during its Performance Verification phase (PV phase) is studied and the results are discussed.

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Acknowledgements

SSM team would like to acknowledge the Director, ISAC, Deputy Director, SAG, ISAC and Group Director, SAG, ISAC for constant support and for the successful launch of AstroSat followed by successful operation of SSM onboard. The team also acknowledges various entities including SMG, CSG and others at ISAC and also CMSE, VSSC, who have contributed their part in making of the payload and successful completion of various processes and procedures towards delivery of the payload. SSM team also acknowledges all the members of SAG and other groups at ISAC who have contributed to the development of this successful payload.

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Authors and Affiliations

  1. Space Astronomy Group, ISRO Satellite Centre, Bangalore, 560 017, India

    M. C. Ramadevi, B. T. Ravishankar, Abhilash R. Sarwade, S. Vaishali, Nirmal Kumar Iyer, Anuj Nandi, V. Girish, Vivek Kumar Agarwal, Blessy Elizabeth Baby & Mohammed Hasan

  2. ISRO Headquarters, Bangalore, 560 231, India

    S. Seetha

  3. Inter University Centre for Astronomy and Astrophysics, Pune, 411 007, India

    Dipankar Bhattacharya

Authors
  1. M. C. Ramadevi
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  2. B. T. Ravishankar
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  3. Abhilash R. Sarwade
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  4. S. Vaishali
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  5. Nirmal Kumar Iyer
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  6. Anuj Nandi
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  7. V. Girish
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  8. Vivek Kumar Agarwal
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  9. Blessy Elizabeth Baby
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  10. Mohammed Hasan
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  11. S. Seetha
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  12. Dipankar Bhattacharya
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Correspondence to M. C. Ramadevi.

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Ramadevi, M.C., Ravishankar, B.T., Sarwade, A.R. et al. Study of X-ray transients with Scanning Sky Monitor (SSM) onboard AstroSat. J Astrophys Astron 39, 11 (2018). https://doi.org/10.1007/s12036-017-9506-1

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  • DOI: https://doi.org/10.1007/s12036-017-9506-1

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