VIRUS Throughput Estimates

The following are estimates for the VIRUS line and continuum flux limits in a standard 3x360s dither set (18min of total exposure time).
  • Line flux limit of 8e-17 ergs/s/cm^2 above 4300AA at S/N=10 for point source.

  • Continuum flux limit g=23 AB in 100AA at S/N=50 (similar for u=23).

It is important for the PI to realize that due to the design of the HET the effective collecting area changes over a trajectory. Near the end of a trajectory the HET has half the collecting area that it has near the middle. As such two medium length visits centered on middle of a track could be more valuable than a single long visit.

All throughput estimates are based upon center of track efficiency.

Try our VIRUS Throughput Calculator.




Last updated: Sun, 14 Apr 2019 00:08:37 -0500 stevenj



Overview

The Telescope

Technical Overview

Object Observability

Performance

Instruments

LRS2

LRS2 Summary

LRS2 Details

LRS2 Fiber Layout and Position Angle

LRS2 Throughput

LRS2 Observing details

VIRUS

VIRUS - Summary

VIRUS - Misc details

VIRUS - Throughput and sensitivity

VIRUS - IFU Layout and Target Placement

Habitable Zone Planet Finder (HPF)

HPF Details

HPF Throughput and Exposure Meter

HPF Data Reductions

HRS-2

HRS-2 Summary

HRS-2 Details

HRS-2 configurations

HRS-2 exposure meter

HRS-2 Position Angle and Fiber layout

HRS-2 Throughput

Old Instruments

LRS - old

Program Preparation

Web Management System

Other HET Documentation