Chapter 13:
Spectroscopic
Reference Material

13.1 Introduction

13.2 Using the Information in this Chapter

13.2.1 Wavelength Ranges

13.2.2 Grating Sensitivities and Throughputs

13.2.3 Signal-To-Noise Plots

13.2.4 Plate Scales

13.2.5 Apertures

13.2.6 Fiducials on Bars

13.2.7 Spatial Profiles

13.2.8 Line Spread Functions (Instrumental Profiles)

13.3 Gratings

First-Order Grating G750L

First-Order Grating G750M

First-Order Grating G430L

First-Order Grating G430M

First-Order Grating G230LB

Comparison of G230LB and G230L

First-Order Grating G230MB

Comparison of G230MB and G230M

First-Order Grating G230L

First-Order Grating G230M

First-Order Grating G140L

First-Order Grating G140M

Echelle Grating E230M

Echelle Grating E230H

Echelle Grating E140M

Echelle Grating E140H

PRISM

PRISM Wavelength Relationship

13.4 Apertures

52X0.05 Aperture

52X0.05E1 and 52X0.05D1 Pseudo-Apertures

52X0.1 Aperture

52X0.1E1and 52X0.1D1 Pseudo-Apertures

52X0.2 Aperture

52X0.2E1, 52X0.2E2, and 52X0.2D1 Pseudo-Apertures

52X0.5 Aperture

52X0.5E1, 52X0.5E2, and 52X0.5D1 Pseudo-Apertures

52X2 Aperture

52X2E1, 52X2E2, and 52X2D1 Pseudo-Apertures

52X0.2F1 Aperture

0.2X0.06 Aperture

0.2X0.2 Aperture

0.2X0.09 Aperture

6X0.2 Aperture

0.1X0.03 Aperture

FP-SPLIT Slits0.2X0.06FP(A-E) Apertures

FP-SPLIT Slits0.2X0.2FP(A-E) Apertures

0.2X0.05ND Aperture

0.3X0.05ND Aperture

F25NDQ Aperture

13.5 Spatial Profiles

First-Order Spatial Profiles

Echelle Spatial Profiles

13.6 Line Spread Functions

First-Order Line Spread Functions

Echelle Line Spread Functions

13.7 Spectral Purity, Order Confusion, and Peculiarities

13.7.1 Recommendations for Stellar Observations with Narrow Slits

13.7.2 Order Overlap and Scattered Light for Echelle Gratings

13.7.3 Spectroscopic Mode Peculiarities

13.7.4 Railroad Tracks

13.8 MAMA Spectroscopic Bright Object Limits