MAVEN and EMM make first observations of Mars' patchy proton aurora

Dragon

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Post n°1

MAVEN and EMM make first observations of Mars' patchy proton aurora

Post by Dragon Thu Sep 01, 2022 3:01 am

NASA's MAVEN (Mars Atmosphere and Volatile Evolution) mission and the United Arab Emirates' Emirates Mars Mission (EMM) have released joint observations of dynamic proton aurora events at Mars.

Remote auroral observations by EMM paired with in-situ plasma observations made by MAVEN open new avenues for understanding the Martian atmosphere.

Source

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MAVEN and EMM make first observations of Mars' patchy proton aurora 334pu7m

Dragon

Dragon: Senior Administrator; Posts : 10680
Points : 31627
Times User Thanked: : 1256
Join date : 2018-01-18

Post n°2

Re: MAVEN and EMM make first observations of Mars' patchy proton aurora

Post by Dragon Thu Sep 01, 2022 3:03 am

MAVEN and EMM make first observations of Mars' patchy proton aurora Maven-and-emm-make-fir

Credit: EMM/EMUS

Patchy proton aurora on Mars form when turbulent conditions around the planet allow charged hydrogen particles from the Sun to stream into the Martian atmosphere.

Images from August 5 show the typical atmospheric conditions, in which the EMM instrument EMUS detects no unusual activity at two wavelengths associated with the hydrogen atom.

But on August 11 and August 30, the instrument observed patchy aurora at both wavelengths, indicating turbulent interactions with the solar wind.

Source

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MAVEN and EMM make first observations of Mars' patchy proton aurora 334pu7m