MULTI-SLITS AT KITT PEAK
A Manual for Designing and Using Entrance Masks for Low/Moderate-Resolution Spectroscopy

J. De Veny, P. Massey, and V. Sarajedini
Kitt Peak National Observatory

March 18, 1996

Abstract

Contents

• 1 Introduction
  • 1.1 What Are The Advantages and Disadvantages of Multi-Slits?
  • 1.2 Where Can I Use Multi-Slits?
  • 1.3 How Will I Use Multi-Slits?
  • 1.4 Fringing
• 2 Designing Multi-Slits
  • 2.1 Recommendations For Astrometry
  • 2.2 MSLIT - A Program to Design Multi-Slit Aperture Plates
    • 2.2.1 How Does The Program Work?
    • 2.2.2 The Input Data File
    • 2.2.3 A Sample Input File
    • 2.2.4 Special Notes for the Parameter Line
    • 2.2.5 Check Stars and Other Options
    • 2.2.6 Selection Rules for ``Drilled" Objects
  • 2.3 Slitlet Width
• 3 The Data and Data Reductions
  • 3.1 Data Format
  • 3.2 Outline of Reducing Multi-Slit Data
    • 3.2.1 Preliminary Reduction
    • 3.2.2 The Extractions
• 4 The Mask Fabrication Process
• 5 A Sample Run - MSLIT

List of Figures

• 1 A Typical Multi-Slit Mask
• 2 Typical Multi-Slit Image
• 3 The Night Sky Spectrum
• 4 Typical Plot Generated by Program MSLIT

   Staff Contacts  Telephone        Email Address
   __________________________________________________
   Daryl Willmarth (520)318-8333   willmart@noao.edu
   Buell Jannuzi   (520)318-8353   jannuzi@noao.edu
   __________________________________________________