Physical conditions in spherical prestellar cores with analytical equations

Investigations of interstellar microscopic phenomena often are in need of a simple, standardized, yet flexible approach for macrophysical evolution of evolving molecular cloud cores. With the help of a 1D model, we provide analytical functions – polynomial equations – tracking gas and dust temperature, density, and column density in seven spherical collapsing prestellar cores in the mass range from 0.5 to 30 <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:msub> <m:mrow> <m:mi mathvariant="normal">M</m:mi> </m:mrow> <m:mrow> <m:mo>⊙</m:mo> </m:mrow> </m:msub> </m:math> {{M}} . Seven geometrical points were sampled along the radius of each core. The resulting data represent physical conditions in parcels in the early presolar nebula and other protostellar collapsing cores. The data are adapted as testbed for models focusing on chemistry or other complex processes.