The Spectrum of Jupiters Great Red Spot: the Case for Ammonium Hydrosulfide (NH4SH)

Loeffler, Mark J.; Hudson, Reggie L.; Chanover, Nancy J.; Simon, Amy A.

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 (Hubble Space Telescope) spectra below 500 nanometers, suggesting that the more stable reaction products of NH4SH radiolysis are likely an important component of the Great Red Spot.

Document ID

20170002453

Document Type

Reprint (Version printed in journal)

External Source(s)

doi:10.1016/j.icarus.2016.02.010

Authors

Loeffler, Mark J. (NASA Goddard Space Flight Center Greenbelt, MD United States)

Hudson, Reggie L. (NASA Goddard Space Flight Center Greenbelt, MD United States)

Chanover, Nancy J. (New Mexico State Univ. Las Cruces, NM, United States)

Simon, Amy A. (NASA Goddard Space Flight Center Greenbelt, MD United States)

Date Acquired

March 23, 2017

Publication Date

February 10, 2016

Publication Information

Publication: ScienceDirect

Volume: 271

ISSN: 0019-1035

Subject Category

Report/Patent Number

Distribution Limits

Public

Other

Keywords

NTRS

NTRS - NASA Technical Reports Server

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