A multichannel Pockels cell spectropolarimeter for the Anglo-Australian Telescope
نویسندگان
چکیده
منابع مشابه
Ks-band secondary eclipses of WASP-19b and WASP-43b with the Anglo-Australian Telescope
We report new Ks-band secondary eclipse observations for the hot-Jupiters WASP-19b and WASP-43b. Using the IRIS2 infrared camera on the Anglo-Australian Telescope (AAT), we measured significant secondary eclipses for both planets, with depths of 0.287+0.020 −0.020 per cent and 0.181+0.027 −0.027 per cent for WASP-19b and WASP-43b, respectively. We compare the observations to atmosphere models f...
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Despite the influence of magnetic fields on the structure and evolution of stars is largely demonstrated from the theoretical point of view, their observational evidence in nondegenerated stars is still rather scanty and mainly circumscribed to bright objects (V<10). Stellar magnetic fields are commonly measured on the basis of circular spectropolarimetry at high/middle resolution across the pr...
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We designed, built, and calibrated a new spectropolarimeter for the HiVIS spectrograph (R∼ 12000-49000) on the AEOS telescope. We also did a polarization calibration of the telescope and instrument. We will introduce the design and use of the spectropolarimeter as well as a new data reduction package we have developed, then discuss the polarization calibration of the spectropolarimeter and the ...
متن کاملLiNbO3 Pockels cell for Q-switch of Er:YAG laser
Generation of a giant pulse of Er:YAG laser is complicated mainly due to the properties of the Er:YAG active medium itself. It is caused by the short lifetime of the Er:YAG crystal upper laser level and a small gain for one pass of the radiation through the active medium. In our case, a specially designed LiNbO3 electrooptic shutter was used for Qswitching of Er:YAG laser. Brewster angles were ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1984
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/209.3.655