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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).
  • HET 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: Fri, 10 May 2024 20:13:24 +0000 sir



Overview

The Telescope

Technical Overview

Object Observability

Performance

Non-sidereal observations

Instruments

LRS2

LRS2 Summary

LRS2 Details

LRS2 Fiber Layout and Position Angle

LRS2 Throughput

LRS2 Observing details

VIRUS

VIRUS - Summary

VIRUS - Setting up on targets

VIRUS - Misc details

VIRUS - Throughput and sensitivity

VIRUS - low surface brightness sensitivity

VIRUS - Dithers, IFUs, Tiling

VIRUS - Tiling observations

Habitable Zone Planet Finder (HPF)

HPF Details

HPF Setting up on targets

HPF Throughput and Exposure Meter

HPF Data Reductions

HRS-2 (in development)

HRS-2 Summary

HRS-2 Details

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HRS-2 exposure meter

HRS-2 Position Angle and Fiber layout

HRS-2 Throughput

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