Skip to main content

TRIP: a cold telescope for measurements of the Near Infrared Cosmological Background at balloon altitudes

Abstract

A cooled telescope (250 mm, F/2) has been designed and prepared for measurements of both local and cosmological Near Infrared backgrounds in the waveband 1–5 μm at balloon altitudes (40 km). The separation of various foreground contributions should be possible by applying observing strategies based on multiple sky scans with different filters. The whole apparatus will be tested in flight by using a detection system based on a linear array of 32 InSb pixels cryogenically cooled and thermally controlled at 52 K. The instrument sensitivity will allow the measurement of most of the local backgrounds. The focal plane could be easily re-arranged to house bidimensional array detectors cooled down to ∼ 35 K with performance improvements of a factor at least 100 ÷ 200. A description is given of the main characteristics of the instrument (optics, cryostat, detector), of the control subsystems (cryogenics, pointing systems, electronics, ground equipment) and of the expected performance based on laboratory test results.

This is a preview of subscription content, access via your institution.

References

  • J.N. Bahacall, R.M. Soneira, 1980, Ap. J. Suppl., 44, 73

    Google Scholar 

  • M.C. Bird, PhD Thesis, Univ. of Edimborough, 1988

  • A. Boscaleri et al, 1990, S.P.I.E. Proceedings, 127–136

  • A. Boscaleri et al., 1994, Meas. Sci. Technol., 5, 190–196

    Google Scholar 

  • A. Brighenti et al., “The TRIP ground controller”, TE.S.R.E./CNR Internal Report N. 148, December 1990

  • S. Cortiglioni et al., “The TRIP pressure control system”, TE.S.R.E./CNR Internal Report N. 119, December 1986

  • S. Cortiglioni, M. Trabisondi, Rev. Sci. Instrum., 1993, Vol. 64, N. 6

  • R.M. Davies, C.A. Nyblack, 1986 S.P.I.E. Proceedings, 627, 438

    Google Scholar 

  • A. Franceschini et al., 1991. Astr. Ap. J. Supp., 89, 285

    Google Scholar 

  • A. Franceschini, Private communication, 1990

  • C. Greco, Thesis, Univ. of Bologna, 1989

  • W. Hoffman et al., Nature Phis. Sci., 1973, 243, 140

    Google Scholar 

  • F. X. Kneizys et al., AFGL-TR-88-0177, User guide to LOWTRAN 7, 1988

  • R.A. MacClatchey et al., 1972, AFCRL-TR-55-213

  • R.A. MacClatchey et al., 1973. Agard Conf. Proc. 183

  • A.G. Mamon, R.M. Soneira, 1982, Ap.J., 255, 181

    Google Scholar 

  • T. Matsumoto et al., 1988, Ap. J., 332, 575

    Google Scholar 

  • R. Morroi, Thesis, Univ. of Bologna, 1989

  • T.L. Murdock, S.D. Price, 1985, A.J., 90, 375

    Google Scholar 

  • T. Nishimura, Publ. Astr. Soc. Ipn., 1973, 25, 375

    Google Scholar 

  • C.A. Nyblack, Proc. of the 28th Midwest Symposium on circuits and Systems Conference, Louisville 1985, 4

  • H. Okuda, Infrared Phys., 1991, 32, 365

    Google Scholar 

  • J.P. Ostriker, L.L. Cowie, 1981, Ap. J., 273, L127

    Google Scholar 

  • M. Rowan-Robinson, B.J. Carr, 1988, in “The Post Recombination Universe”, pp 125, eds N. Kaiser and A.N. Lasenby, Kluwer Acad. Publ.

  • W.A. Traub, M.K. Stier, Appl. Opt., 1976, 15, 364

    Google Scholar 

  • A. Vallance Jones, Sp. Sci. Rev., 1973, 15, 355

    Google Scholar 

  • G. Ventura, “The TRIP Service Electronics”, TE.S.R.E/CNR Internal Report N. 159, April 1992.

  • G. Ventura et al., “The TRIP experiment”, TE.S.R.E./CNR Internal Report N. 169, July 1994

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Ventura, G., Malaspina, M., Boscaleri, A. et al. TRIP: a cold telescope for measurements of the Near Infrared Cosmological Background at balloon altitudes. Exp Astron 6, 59–82 (1995). https://doi.org/10.1007/BF00421126

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00421126

Keywords

  • cosmology
  • balloon-borne instrumentation
  • infrared detection
  • cryogenics