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Large Area X-ray Proportional Counter (LAXPC) in orbit performance: Calibration, background, analysis software

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Abstract

The Large Area X-ray Proportional Counter (LAXPC) instrument on-board AstroSat has three nominally identical detectors for timing and spectral studies in the energy range of 3–80 keV. The performance of these detectors during the five years after the launch of AstroSat is described. Currently, only one of the detector is working nominally. The variation in pressure, energy resolution, gain and background with time are discussed. The capabilities and limitations of the instrument are described. A brief account of available analysis software is also provided.

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Notes

  1. https://astrobrowse.issdc.gov.in/astro_archive/archive/Home.jsp.

  2. https://www.tifr.res.in/~astrosat_laxpc/laxpclog.lc-hdr.html.

  3. https://www.tifr.res.in/~astrosat_laxpc/LaxpcSoft_v1.0/gaina8.dat.

  4. https://www.tifr.res.in/~astrosat_laxpc/laxpc10.pdf.

  5. ID: 20160714_G05_219T01_9000000540

  6. ID: 20171107_A04_024T04_9000001670.

  7. ID: 202190507_SLEW_01234_9000002893.

  8. ID: 20190808_SLEW_01234_9000003079.

  9. https://www.tifr.res.in/ãstrosat_laxpc/LAXPC_lvl2_pipeline.html.

  10. https://www.tifr.res.in/ãstrosat_laxpc/LaxpcSoft.html.

  11. http://astrosat-ssc.iucaa.in/?q=data_and_analysis.

  12. http://astrosat-ssc.iucaa.in/?q=laxpcData.

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Acknowledgements

We acknowledge the strong support from Indian Space Research Organization (ISRO) in various aspects of instrument building, testing, software development and mission operation and data dissemination. We acknowledge support of the scientific and technical staff of the LAXPC instrument team as well as staff of the TIFR Workshop in the development and testing of the LAXPC instrument.

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Authors and Affiliations

  1. Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, India

    H. M. Antia, P. C. Agrawal, Dhiraj Dedhia, Tilak Katoch, Kallol Mukerjee & P. Shah

  2. Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD, 4300, Australia

    R. K. Manchanda

  3. Inter-University Centre for Astronomy & Astrophysics, Ganeshkhind, Pune, 411 007, India

    Ranjeev Misra & Jayashree Roy

  4. School of Physics and Astronomy, University of Southampton, Highfield Campus, Southampton, SO17 1BJ, UK

    Mayukh Pahari

  5. Department of Physics, Indian Institute of Technology, Hyderabad, Hyderabad, 502 285, India

    Mayukh Pahari

  6. Department of Physics, Indian Institute of Technology, Kanpur, Kanpur, 208 016, India

    J. S. Yadav

Authors
  1. H. M. Antia
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  2. P. C. Agrawal
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  3. Dhiraj Dedhia
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  4. Tilak Katoch
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  5. R. K. Manchanda
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  6. Ranjeev Misra
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  7. Kallol Mukerjee
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  8. Mayukh Pahari
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  9. Jayashree Roy
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  10. P. Shah
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  11. J. S. Yadav
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Corresponding author

Correspondence to H. M. Antia.

Additional information

This article is part of the Special Issue on “AstroSat: Five Years in Orbit”.

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Antia, H.M., Agrawal, P.C., Dedhia, D. et al. Large Area X-ray Proportional Counter (LAXPC) in orbit performance: Calibration, background, analysis software. J Astrophys Astron 42, 32 (2021). https://doi.org/10.1007/s12036-021-09712-8

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  • DOI: https://doi.org/10.1007/s12036-021-09712-8

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