| Issue |
2010
|
|
|---|---|---|
| Article Number | 01006 | |
| Number of page(s) | 6 | |
| Section | Astrophysical needs and high level requirements for AO on ELTs | |
| DOI | https://doi.org/10.1051/ao4elt/201001006 | |
| Published online | 24 February 2010 | |
Scientific Impact of the Operating Temperature for NFIRAOS on TMT
1
NRC Herzberg Institute of Astrophysics,
5071 W. Saanich Rd., Victoria, B.C., V9E 2E7 CANADA
2
TMT Observatory, 2632 E. Washington Blvd,
Pasadena, CA 91107, USA
3
Dept. of Physics and Astronomy, 6224 Agricultural Rd., UBC,
Vancouver B.C., V6T 1Z1, CANADA
a e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
We present the scientific gain enjoyed by client instruments when NFIRAOS is cooled. If NFIRAOS is cooled to -24 °C, the background contribution of NFIRAOS will not exceed 15% of the background from sky plus TMT (for a telescope build to current requirements on Mauna Kea). If cooled further to -30 °C, the K-band inter-OH background-limited exposure times could decrease by more than 7%. We evaluate these gains achieved by cooling NFIRAOS in light of increased technical risks and costs.
© Owned by the authors, published by EDP Sciences, 2010