Solar Eclipse Observations from the Ground and Air from 0.31 to 5.5 Microns
Solar Eclipse Observations from the Ground and Air from 0.31 to 5.5 Microns
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从地面和空中观测 0.31 至 5.5 微米的日食
DOI:
10.1007/s11207-019-1550-3
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发表时间:
2019
期刊:
影响因子:
2.8
通讯作者:
Golub, Leon
中科院分区:
文献类型:
--
作者:
Judge, Philip;Berkey, Ben;Boll, Alyssa;Bryans, Paul;Burkepile, Joan;Cheimets, Peter;DeLuca, Edward;de Toma, Giuliana;Gibson, Keon;Golub, Leon
We present spectra and broad-band polarized light data from a novel suite of instruments deployed during the 21st August 2017 total solar eclipse. Our goals were to survey solar spectra at thermal infrared wavelengths during eclipse, and to test new technology for measuring polarized coronal light. An infrared coronal imaging spectrometer, flown at 14.3 km altitude above Kentucky, was supported on the ground by observations from Madras, Oregon (elevation 683 m) and Camp Wyoba on Casper Mountain, Wyoming (2402 m). In Wyoming we deployed a new infraredFourier Transform Spectrometer(FTS), three low-dispersion spectrometers loaned to us by Avantes, a novel visible-light camera PolarCam, sensitive to linear polarization, and one of two infrared cameras from FLIR Systems, the other operated at Madras. Circumstances of eclipse demanded that the observations spanned 17:19 to 18:26 UT. We analyze spectra of the limb photosphere, the chromosphere, prominences, and coronal lines from 310 nm to 5.5 μm. We calibrated data photometrically using the solar disk as a source. Between different spectrometers, the calibrations were consistent to better than 13%. But the sensitivities achieved were insufficient to detect coronal lines from the ground. The PolarCam data are in remarkable agreement with polarization data from the K-Cor synoptic instrument on Mauna Loa, and with FLIR intensity data acquired in Madras. We discuss new results, including a detection of the Hei1083 nm multiplet in emission during the whole of totality. The combination of the FTS and AIR-Spec spectra reveals for the first time the effects of the telluric extinction on the infrared coronal emission lines, to be observed with upcomingDaniel K. Inouye Solar Telescope.
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DOI:
10.1088/0004-637x/722/2/1411
发表时间:
2010
期刊:
The Astrophysical Journal
影响因子:
--
作者:
E. Moise;J. Raymond;J. Kuhn
通讯作者:
J. Kuhn
DOI:
10.1086/149297
发表时间:
1967
期刊:
The Astrophysical Journal
影响因子:
--
作者:
G. Münch;G. Neugebauer;D. McCammon
通讯作者:
D. McCammon
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
M. Penn;J. Arnaud;D. Mickey;B. Labonte
通讯作者:
B. Labonte
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
P. Judge;M. Carlsson
通讯作者:
M. Carlsson
DOI:
--
发表时间:
1955
期刊:
影响因子:
--
作者:
F. Hoyle
通讯作者:
F. Hoyle