期刊
ASTRONOMY & ASTROPHYSICS
卷 549, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201219834
关键词
atmospheric effects; instrumentation: spectrographs; methods: observational; techniques: imaging spectroscopy
资金
- CNRS/IN2P3
- CNRS/INSU
- CNRS/PNC
- DFG [TRR33]
- National Natural Science Foundation of China [10903010]
- Office of Science, Office of High Energy and Nuclear Physics
- Office of Advanced Scientific Computing Research, of the US Department of Energy (DOE) [DE-FG02-92ER40704, DE-AC02-05CH11231, DE-FG02-06ER06-04]
- Gordon & Betty Moore Foundation
- National Science Foundation [AST-0407297, 0087344, 0426879, AST-0838261]
- Henri Chretien International Research Grant
- France-Berkeley Fund
- Region Rhone-Alpes
- Direct For Computer & Info Scie & Enginr
- Office of Advanced Cyberinfrastructure (OAC) [0426879] Funding Source: National Science Foundation
- Office of Advanced Cyberinfrastructure (OAC)
- Direct For Computer & Info Scie & Enginr [0087344] Funding Source: National Science Foundation
We present a new atmospheric extinction curve for Mauna Kea spanning 3200-9700 angstrom. It is the most comprehensive to date, being based on some 4285 standard star spectra obtained on 478 nights spread over a period of 7 years obtained by the Nearby SuperNova Factory using the SuperNova Integral Field Spectrograph. This mean curve and its dispersion can be used as an aid in calibrating spectroscopic or imaging data from Mauna Kea, and in estimating the calibration uncertainty associated with the use of a mean extinction curve. Our method for decomposing the extinction curve into physical components, and the ability to determine the chromatic portion of the extinction even on cloudy nights, is described and verified over the wide range of conditions sampled by our large dataset. We demonstrate good agreement with atmospheric science data obtain at nearby Mauna Loa Observatory, and with previously published measurements of the extinction above Mauna Kea.
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