P
Padma Yanamandra-Fisher
Researcher at Space Science Institute
Publications - 10
Citations - 195
Padma Yanamandra-Fisher is an academic researcher from Space Science Institute. The author has contributed to research in topics: Planet & Jupiter. The author has an hindex of 4, co-authored 10 publications receiving 180 citations. Previous affiliations of Padma Yanamandra-Fisher include California Institute of Technology & Microsoft.
Papers
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Journal ArticleDOI
Semi-annual oscillations in Saturn's low-latitude stratospheric temperatures.
Glenn S. Orton,Padma Yanamandra-Fisher,Brendan Fisher,A. James Friedson,Paul D Parrish,Jesse F Nelson,Amber Bauermeister,Leigh N. Fletcher,Daniel Y. Gezari,Frank Varosi,Alan T. Tokunaga,John Caldwell,Kevin H. Baines,Joseph L. Hora,Michael E. Ressler,Takuya Fujiyoshi,Tetsuharu Fuse,Hagop Hagopian,Terry Z Martin,Jay T Bergstralh,Carly Howett,William F. Hoffmann,Lynne K. Deutsch,Jeffrey Van Cleve,Eldar Noe,J. D. Adams,M. Kassis,Eric V. Tollestrup +27 more
TL;DR: The existence of similar oscillations in Saturn's atmosphere is reported, from an analysis of over two decades of spatially resolved observations of its 7.8-μm methane and 12.2- μm ethane stratospheric emissions, to support the interpretation of vertical and meridional variability of temperatures in Saturn’s stratosphere as a manifestation of a wave phenomenon similar to that on the Earth and in Jupiter.
Journal ArticleDOI
Polar lightning and decadal-scale cloud variability on Jupiter.
Kevin H. Baines,Amy A. Simon-Miller,Glenn S. Orton,Harold A. Weaver,Allen W. Lunsford,Thomas W. Momary,John R. Spencer,Andrew F. Cheng,Dennis C. Reuter,Donald E. Jennings,G. R. Gladstone,Jeffrey M. Moore,S. Alan Stern,Leslie A. Young,Henry B. Throop,Padma Yanamandra-Fisher,Brendan Fisher,Joseph L. Hora,Michael E. Ressler +18 more
TL;DR: Optical observations from the New Horizons spacecraft have identified lightning at high latitudes above Jupiter up to 80°N and 74°S, demonstrating that vertical dynamical processes are time-varying on seasonal scales at mid- and low latitudes on Jupiter.
Journal ArticleDOI
Infrared studies of epsilon aurigae in eclipse
Robert E. Stencel,Brian Kloppenborg,Randall E. Wall,Jeffrey L. Hopkins,Steve B. Howell,D. W. Hoard,John Rayner,Schelte J. Bus,Alan T. Tokunaga,Michael L. Sitko,Michael L. Sitko,Suellen Bradford,Suellen Bradford,Ray W. Russell,David K. Lynch,Heidi B. Hammel,Barbara A. Whitney,Glenn S. Orton,Padma Yanamandra-Fisher,Joseph L. Hora,Philip M. Hinz,William F. Hoffmann,Andrew J. Skemer +22 more
TL;DR: In this paper, a series of medium-resolution spectro-photometric observations of the enigmatic long period eclipsing binary epsilon Aurigae, during its eclipse interval of 2009-2011, using near-infrared spectra obtained with SpeX on the Infrared Telescope Facility (IRTF), mid-inf infrared spectra acquired with BASS on AOES and IRTF, MIRSI on IRTF and MIRAC4 on the MMT, along with midinfrared photometry using MIRSA on IRTA, plus 1995-2000 timeframe published phot
Journal ArticleDOI
Recovery and characterization of Neptune's near-polar stratospheric hot spot
Glenn S. Orton,Leigh N. Fletcher,Junjun Liu,Tapio Schneider,Padma Yanamandra-Fisher,Imke de Pater,M. L. Edwards,Thomas R. Geballe,Heidi B. Hammel,Takuya Fujiyoshi,Thérèse Encrenaz,Eric Pantin,Olivier Mousis,Tetsuharu Fuse +13 more
TL;DR: Orton et al. as discussed by the authors revealed a near-polar hot spot near 70°S latitude that was detectable in filters sampling both stratospheric methane (7 μm) and ethane (∼12 μm).
Posted Content
The need for Professional-Amateur collaborations in studies of Jupiter and Saturn
E. Kardasis,John H. Rogers,Glenn S. Orton,Marc Delcroix,Apostolos A. Christou,Mike Foulkes,Padma Yanamandra-Fisher,Michel Jacquesson,Grigoris Maravelias +8 more
TL;DR: In this paper, the authors present examples of such collaborations that: (i) engage systematic multi-wavelength observations and databases, (ii) examine the variability of cloud features over timescales from days to decades, (iii) provide, by ground-based professional and amateur observations, the necessary spatial and temporal resolution of features that will be studied by the interplanetary mission Juno, (iv) investigate video observations of Jupiter to identify impacts of small objects, and carry out stellar-occultation campaigns.