Jovian atmospheric studies with the Galileo near infrared mapping spectrometer: An update
ADV SPACE RES 23:9 (1999) 1623-1632
Abstract:
In its first two years of operation since arrival at Jupiter in December 1995, the Near Infrared Mapping spectrometer (NIMS) on the Galileo orbiter spacecraft obtained extensive coverage of the planet, including detailed coverage of the north equatorial belt (NEB) 'hot spot' region and the Great Red Spot. We will present the current state of data analysis including recent results on the abundances and variability of several minor constituents (H2O, CH4, NH3, GeH4, CH3D and PH3) and the cloud structure and morphology. (C) 1999 COSPAR. Published by Elsevier Science Ltd.Mixing of an advected-diffused tracer in the lower stratosphere: probability distribution functions of tracer gradients and differences
12TH CONFERENCE ON ATMOSPHERIC AND OCEANIC FLUID DYNAMICS (1999) 303-306
Molecular gas distribution and dynamics in the luminous merger NGC 6240
ASTROPHYS SPACE SCI 266:1-2 (1999) 157-162
Abstract:
We present the results of our subarcsecond resolution interferometric observations of the 1.3 mm CO J = 2-->1 line in the luminous merger NGC 6240. Roughly half of the CO flux is contained in a rotating and highly turbulent thick disk centered between the two radio and near-infrared nuclei. In this disk the molecular gas has velocity widths which reach FWZP line widths of up to 1000 km s(-1). The mass of this gas concentration makes up between 30%-70% of the dynamical mass in this region. NGC 6240 may be in an earlier merging stage than typical ULIRGs such as Arp 220. We compare these results from NGC 6240 with those of other luminous, gas-rich interacting galaxies and mergers.Spatially inhomogeneous random advection
12TH CONFERENCE ON ATMOSPHERIC AND OCEANIC FLUID DYNAMICS (1999) 307-311
Subtropical water vapor as a mediator of rapid global climate change
Chapter in Mechanisms of Global Climate Change at Millennial Time Scales, American Geophysical Union (1999) 339-361