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Airglow and Aurorae from Dome A, Antarctica

Published online by Cambridge University Press:  30 January 2013

Geoff Sims
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
Michael C. B. Ashley
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
Xiangqun Cui
Affiliation:
Nanjing Institute of Astronomical Optics & Technology, Nanjing 210042, China
Jon R. Everett
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
LongLong Feng
Affiliation:
Purple Mountain Observatory, Nanjing 210008, China Chinese Center for Antarctic Astronomy, China
Xuefei Gong
Affiliation:
Nanjing Institute of Astronomical Optics & Technology, Nanjing 210042, China Chinese Center for Antarctic Astronomy, China
Shane Hengst
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
Zhongwen Hu
Affiliation:
Nanjing Institute of Astronomical Optics & Technology, Nanjing 210042, China Chinese Center for Antarctic Astronomy, China
Jon S. Lawrence
Affiliation:
Department of Physics and Astronomy, Macquarie University, Sydney NSW 2109, Australia Australian Astronomical Observatory, Sydney NSW 1710, Australia
Daniel M. Luong-Van
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
Anna M. Moore
Affiliation:
Caltech Optical Observatories, Pasadena, CA, USA
Reed Riddle
Affiliation:
Caltech Optical Observatories, Pasadena, CA, USA
Zhaohui Shang
Affiliation:
Chinese Center for Antarctic Astronomy, China Tianjin Normal University, Tianjin 300074, China
John W. V. Storey
Affiliation:
School of Physics, University of New South Wales, Sydney NSW 2052, Australia email: g.sims@unsw.edu.au
Nick Tothill
Affiliation:
University of Western Sydney, Sydney NSW, Australia
Tony Travouillon
Affiliation:
Caltech Optical Observatories, Pasadena, CA, USA
Lifan Wang
Affiliation:
Purple Mountain Observatory, Nanjing 210008, China Chinese Center for Antarctic Astronomy, China Department of Physics and Astronomy, Texas A&M University, College Station 77843, USA
Huigen Yang
Affiliation:
Chinese Center for Antarctic Astronomy, China Polar Research Institute of China, Shanghai 200136, China
Ji Yang
Affiliation:
Purple Mountain Observatory, Nanjing 210008, China
Xu Zhou
Affiliation:
Chinese Center for Antarctic Astronomy, China National Astronomical Observatories, Chinese Academy of Science, Beijing 100012, China
Zhenxi Zhu
Affiliation:
Purple Mountain Observatory, Nanjing 210008, China Chinese Center for Antarctic Astronomy, China
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Abstract

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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 potential 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 photometric 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°.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

Moore, A.et al. 2010, Proc. SPIE, 7733, 77331SGoogle Scholar
Sims, G.et al. 2010, Proc. SPIE, 7733, 77334MGoogle Scholar
Sims, G.et al. 2012, Publ. Astron. Soc. Pac., 124, 637Google Scholar