4 papers
Selection Rules and Channel Structure in a Base Octave Model of Collatz Dynamics
Katharina Lodders
The Collatz iteration is governed by two distinct update rules, depending on the parity of the current iterate: n(i+1)=3n(i)+1 for odd n(i), and n(i+1)=n(i)/2 for even n(i). We sho…
Effects of Metallicity on Graphite, TiC, and SiC Condensation in Carbon Stars
Gabrielle Adams, Katharina Lodders
From transmission electron microscopy and other laboratory studies of presolar grains, the implicit condensation sequence of carbon-bearing condensates in circumstellar envelopes o…
Condensation and the Volatility Trend of the Earth
Katharina Lodders, Bruce Fegley, Klaus Mezger +1
This article describes condensation of the elements and use of condensation temperatures (Tcond) to interpret the volatility trend of the Earth. Major points are: (1) a listing of…
Sulfur in the Giant Planets, their Moons, and Extrasolar Gas Giant Planets
Katharina Lodders, Bruce Fegley
We review sulfur chemistry of the gas giant planets and their moons where sulfur compounds are observed. The major S-bearing gas in the upper atmospheres of the giant planets is H2…