IRAM Newsletter 19 (January 1995 )

Note: this is the on-line version of the IRAM Newsletter. A Postscript version is also available. You may also access previous issues, or proposal forms and style files.

Calendar

Observing proposals:

Proposals for the period May 15, 1995 to Nov. 15, 1995 should be submitted before Tuesday, February 28th 1995

• Contents
• 1.3 mm and 3 mm VLBI between Plateau de Bure and Pico Veleta
• Software
• Interferometer
  • Baseline Extension
  • Observations
  • Telephone Numbers
• Frequency Switching at the 30m Telescope
  • Results
  • Limitations
    • frequency throw
    • switching rate
  • Special Considerations
  • Efficiency
• Call for Observing Proposals on the 30m Telescope
  • News
  • Applications
  • Observing time estimates
  • Long programmes
  • Service observing
  • Programmes for the Nov. 94 -- May 1995 period
  • Relevant Information about the 30 m Telescope
    • Receivers
      • 3 mm Continuum Receiver
      • 3 mm SIS receiver
      • 2 mm Receiver
      • 1.3 mm heterodyne Receivers
      • Polarimeter
      • General point about receiver operations
    • Service observing
    • Backends
    • Pointing / Focussing
    • Wobbler
    • Calibrated spectral lines
  • References
• Call for Observing Proposals on the Plateau de Bure Interferometer
• Scientific Results
  • Dense gas in nearby galaxies IX. A survey for HNC
  • CO, HCO and HCN absorption in the gravitational lens candidate B0218+357 at z=0.685
  • 6cm and 2mm HCO Absorption Toward Compact Extragalactic mm-wave Continuum Sources
  • The distorted kinematics of Molecular Gas in the center of NGC 891
  • Carbon Monoxide Outgassing from Comet P/Schwassmann-Wachmann 1.
• New Preprints
• Cookbook Formulae for Estimating Observing Times at the 30m Telescope
  • Foreword
  • Telescope efficiencies
  • Receiver characteristics
  • Receiver tunings
  • Backend characteristics
  • Dead times
  • Examples of calculation of time efficiency ratios
  • Example of calculation of integration times
    • Applying the radiometer formula
    • Application of the formulae: one practical example
  • Overheads
  • References
• About this document ...