Lobster-ISS: An imaging X-ray all-sky monitor for the International Space Station

G. W. Fraser, A. N. Brunton, N. P. Bannister, J. F. Pearson, M. J. Ward, T. Stevenson, D. J. Watson, B. Warwick, S. Whitehead, P. T. O'brien, N. White, K. Jahoda, K. Black, S. D. Hunter, P. Deines-Jones, W. C. Priedhorsky, S. P. Brumby, K. N. Borozdin, T. Vestrand, A. C. FabianK. Nugent, A. Peele, T. H. Irving, S. Price, S. Eckersley, I. Renouf, M. Smith, A. Parmar, I. M. McHardy, P. Uttley, A. Lawrence

Research output: Contribution to journalArticlepeer-review

91 Scopus citations

Abstract

We describe the design of Lobster-ISS, an X-ray imaging all-sky monitor (ASM) to be flown as an attached payload on the International Space Station. Lobster-ISS is the subject of an ESA Phase-A study which will begin in December 2001. With an instantaneous field of view 162° × 22.5°, Lobster-ISS will map almost the complete sky every 90 minute ISS orbit, generating a confusion-limited catalogue of ∼ 250,000 sources every 2 months. Lobster-ISS will use focusing microchannel plate optics and imaging gas proportional micro-well detectors; work is currently underway to improve the MCP optics and to develop proportional counter windows with enhanced transmission and negligible rates of gas leakage, thus improving instrument throughput and reducing mass. Lobster-ISS provides an order of magnitude improvement in the sensitivity of X-ray ASMs, and will, for the first time, provide continuous monitoring of the sky in the soft X-ray region (0.1-3.5 keV). Lobster-ISS provides long term monitoring of all classes of variable X-ray source, and an essential alert facility, with rapid detection of transient X-ray sources such as Gamma-Ray Burst afterglows being relayed to contemporary pointed X-ray observatories. The mission, with a nominal lifetime of 3 years, is scheduled for launch on the Shuttle c.2009.

Original languageEnglish (US)
Pages (from-to)115-126
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4497
DOIs
StatePublished - 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • ISS: all sky monitor
  • Lobster
  • X-ray: instrumentation

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