DOI: 00.0000/X000000000000000X
Abstract. Despite the absence of artificial light pollution at Antarctic plateau sites such as Dome A, other factors such as airglow, aurorae and extended periods of twilight have the po-tential to adversely affect optical observations. We present a statistical analysis of the airglow and aurorae at...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.639.4163 http://www.phys.unsw.edu.au/jacara/Papers/pdf/iaus288/iau288-nigel_ed.pdf |
Summary: | Abstract. Despite the absence of artificial light pollution at Antarctic plateau sites such as Dome A, other factors such as airglow, aurorae and extended periods of twilight have the po-tential to adversely affect optical observations. We present a statistical analysis of the airglow and aurorae at Dome A using spectroscopic data from Nigel, an optical/near-IR spectrometer operating in the 300–850 nm range. The median auroral contribution to the B, V and R pho-tometric bands is found to be 22.9, 23.4 and 23.0 mag arcsec−2 respectively. We are also able to quantify the amount of annual dark time available as a function of wavelength; on average twilight ends when the Sun reaches a zenith distance of 102.6◦. |
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