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Person, Michael J.; Bosh, Amanda S.; Zuluaga, Carlos A.; Sickafoose, Amanda A.; Levine, Stephen E.; Pasachoff, Jay M.; Babcock, Bryce A.; Dunham, Edward W.; McLean, Ian S.; Wolf, Jürgen; Abe, Fumio; Becklin, E.E.; Bida, Thomas A.; Bright, Len P.; Brothers, Tim; Christie, Grant; Durst, Rebecca F.; Gilmore, Alan C.; Hamilton, Ryan T.; Harris, Hugh C.; Johnson, Chris; Kilmartin, Pamela M.; Kosiarek, Molly; Leppik, Karina; Logsdon, Sarah E.; Lucas, Robert; Mathers, Shevill; Morley, C.J.K.; Nelson, Peter; Ngan, Haydn; Pfüller, Enrico; Natusch, Tim; Sallum, Stephanie; Savage, Maureen L.; Seeger, Christina H.; Siu, Ho Chit; Stockdale, Chris; Suzuki, Daisuke; Thanathibodee, Thanawuth; Tilleman, Trudy; Tristram, Paul J.; Vacca, William D.; Van Cleve, Jeffrey; Varughese, Carolle; Weisenbach, Luke W.; Widen, Elizabeth; Wiedemann, Manuel
Icarus (New York, N.Y. 1962), 03/2021, Letnik: 356Journal Article
On UT 29 June 2015, the occultation by Pluto of a bright star (r′ = 11.9) was observed from the Stratospheric Observatory for Infrared Astronomy (SOFIA) and several ground-based stations in New Zealand and Australia. Pre-event astrometry allowed for an in-flight update to the SOFIA team with the result that SOFIA was deep within the central flash zone (~22 km from center). Analysis of the combined data leads to the result that Pluto's middle atmosphere is essentially unchanged from 2011 and 2013 (Person et al. 2013; Bosh et al. 2015); there has been no significant expansion or contraction of the atmosphere. Additionally, our multi-wavelength observations allow us to conclude that a haze component in the atmosphere is required to reproduce the light curves obtained. This haze scenario has implications for understanding the photochemistry of Pluto's atmosphere.
