STEVE: Difference between revisions
Revert, unsourced. Please provide a reliable source; in the original movie clip it's pronounced differently. Undid revision 791300750 by 216.164.138.88 (talk) |
?? Find me another pron. that is sourced. Just going off how my professor says it, it's different from the movie, in which it's just the common male name. |
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[[File:Optical Steve.jpg|thumb|This image of Steve was taken August 17, 2015 at Little Bow Resort, AB, Canada. Photo by Elfie Hall.]] |
[[File:Optical Steve.jpg|thumb|This image of Steve was taken August 17, 2015 at Little Bow Resort, AB, Canada. Photo by Elfie Hall.]] |
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'''Steve''' is an [[Atmospheric optics|atmospheric optical phenomenon]], which appears as a light ribbon in the sky, formally discovered in 2017 by [[aurora]] watchers from [[Alberta|Alberta, Canada]]. According to Eric Donovan's analysis of the [[Swarm (spacecraft)|Swarm]] satellite data, it was caused by a 25 km wide ribbon of hot [[gas]]ses at an altitude of 300 km, temperature of 3000 °C and flowing at a speed of 6 km/s (compared to 10 m/s outside the ribbon). The phenomenon is not rare, but nobody had looked into it in detail prior to that.<ref name=":0">{{Cite news|url=https://www.sciencealert.com/introducing-steve-a-newly-discovered-light-in-the-sky|title=Introducing Steve - a Newly Discovered Astronomical Phenomenon|last=McRae|first=Mike|date=24 April 2017|work=ScienceAlert|access-date=|archive-url=|archive-date=|dead-url=}}</ref><ref>{{Cite news|url=http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/When_Swarm_met_Steve|title=When Swarm Met Steve|last=|first=|date=21 April 2017|work=ESA|access-date=|archive-url=|archive-date=|dead-url=}}</ref> |
'''Steve''' ({{IPAc-en|ˈ|s|t|ɛ|v|eɪ}} {{Respell|STE-vay}}) is an [[Atmospheric optics|atmospheric optical phenomenon]], which appears as a light ribbon in the sky, formally discovered in 2017 by [[aurora]] watchers from [[Alberta|Alberta, Canada]]. According to Eric Donovan's analysis of the [[Swarm (spacecraft)|Swarm]] satellite data, it was caused by a 25 km wide ribbon of hot [[gas]]ses at an altitude of 300 km, temperature of 3000 °C and flowing at a speed of 6 km/s (compared to 10 m/s outside the ribbon). The phenomenon is not rare, but nobody had looked into it in detail prior to that.<ref name=":0">{{Cite news|url=https://www.sciencealert.com/introducing-steve-a-newly-discovered-light-in-the-sky|title=Introducing Steve - a Newly Discovered Astronomical Phenomenon|last=McRae|first=Mike|date=24 April 2017|work=ScienceAlert|access-date=|archive-url=|archive-date=|dead-url=}}</ref><ref>{{Cite news|url=http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/When_Swarm_met_Steve|title=When Swarm Met Steve|last=|first=|date=21 April 2017|work=ESA|access-date=|archive-url=|archive-date=|dead-url=}}</ref> |
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== Discovery and naming == |
== Discovery and naming == |
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Revision as of 12:54, 19 July 2017
Steve (/ˈstɛveɪ/ STE-vay) is an atmospheric optical phenomenon, which appears as a light ribbon in the sky, formally discovered in 2017 by aurora watchers from Alberta, Canada. According to Eric Donovan's analysis of the Swarm satellite data, it was caused by a 25 km wide ribbon of hot gasses at an altitude of 300 km, temperature of 3000 °C and flowing at a speed of 6 km/s (compared to 10 m/s outside the ribbon). The phenomenon is not rare, but nobody had looked into it in detail prior to that.[1][2]
Discovery and naming
Originally the aurora watchers, members of a Facebook group called Alberta Aurora Chasers, attributed the phenomenon to a proton aurora and erroneously called them "proton arcs",[3] but when physics professor Eric Donovan from the University of Calgary saw the pictures, he suspected that was not the case, because proton auroras are not visible.[4] As he correlated the time and location of the phenomenon with European Space Agency (ESA)'s Swarm satellite data, the phenomenon was very clearly distinguished. More details will be published by Donovan and his team later, including the suspected cause of the phenomenon.[1][needs update]
One of the aurora watchers, photographer Chris Ratzlaff,[5] suggested the name "Steve" from Over the Hedge, an animated comedy movie of 2006, in which its characters chose that name for something unknown.[6] Reportage of the heretofore undescribed unusual "aurora" went viral as an example of citizen science on Aurorasaurus.[7][8]
A member of Alberta Aurora Chasers suggested "Strong Thermal Emission Velocity Enhancement" as a backronym of STEVE in April 2017.[9]
See also
References
- ^ a b McRae, Mike (24 April 2017). "Introducing Steve - a Newly Discovered Astronomical Phenomenon". ScienceAlert.
{{cite news}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "When Swarm Met Steve". ESA. 21 April 2017.
{{cite news}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Meet Steve". European Space Agency. Retrieved 2017-04-24.
- ^ "Aurora photographers find new night sky lights and call them Steve". BBC News. 23 April 2017.
{{cite news}}: Cite has empty unknown parameter:|dead-url=(help) - ^ "Amateur Sky-Watchers Discover Celestial Phenomenon, Name It 'Steve'". 24 April 2017.
{{cite news}}: Cite has empty unknown parameter:|1=(help) - ^ "New atmospheric phenomenon named Steve discovered by aurora watchers". ABC News. 24 April 2017.
{{cite news}}: Cite has empty unknown parameter:|dead-url=(help) - ^ Rozell, Ned (2015-04-02). "Citizen science meets the aurora". University of Alaska Fairbanks Geophysical Institute.
- ^ "7 Things to Know About "STEVE"". Aurorasaurus. 2017-03-14.
- ^ "Introducing Steve – a newly discovered astronomical phenomenon". Googply News. 2017-04-24. Retrieved 2017-04-25.
External links
- Eric Donovan's presentation at 2017 ESA Earth Explorer Missions Science Meeting (1:08:30 - 1:26:00)
- Alberta Aurora Chasers
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