@article{046cc9ec18c54e3abfc4c2ebb5483b16,
title = "The spectrum of Jupiter's Great Red Spot: The case for ammonium hydrosulfide (NH4SH)",
abstract = "Here we present new ultraviolet-visible spectra of irradiated ammonium hydrosulfide (NH4SH), a reported jovian atmospheric cloud component, for a range of temperatures and radiation doses and make assignments to the spectral features. We show that the combination of radiolysis and thermal annealing of NH4SH causes the originally featureless ultraviolet-visible reflectance spectrum to evolve into one that absorbs in the ultraviolet-visible region. Furthermore, we find that our laboratory spectra resemble HST spectra below 500nm, suggesting that the more stable reaction products of NH4SH radiolysis are likely an important component of the Great Red Spot.",
keywords = "Atmospheres, chemistry, Experimental techniques, Geophysics, Ices, UV spectroscopy, Jupiter atmosphere",
author = "Loeffler, {Mark J.} and Hudson, {Reggie L.} and Chanover, {Nancy J.} and Simon, {Amy A.}",
note = "Funding Information: The support of NASA's Planetary Atmospheres and Outer Planets Research programs is gratefully acknowledged. Steve Brown, Tom Ward, and Eugene Gerashchenko, members of the NASA Goddard Radiation Effects Facility, operated and maintained the Van de Graaff accelerator. This work used NASA/ESA Hubble Space Telescope observations retrieved from the Data Archive at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. The observations are associated with programs GO5313, GO11498, and GO13937, and using these program numbers all data can be retrieved from http://archive.stsci.edu/hst/search.php at the Hubble archive. Publisher Copyright: {\textcopyright} 2016.",
year = "2016",
month = jun,
day = "1",
doi = "10.1016/j.icarus.2016.02.010",
language = "English (US)",
volume = "271",
pages = "265--268",
journal = "Icarus",
issn = "0019-1035",
publisher = "Academic Press Inc.",
}