Ticket #71 (new bug)
Incorrect HD cooling rate in the low density limit
|Reported by:||sglover||Owned by:||bwoshea|
The expression given in Galli & Palla (1998) for the low density HD cooling rate is incorrect: it includes cooling from the 0->1 and 1->2 collisional transitions, but in the low density limit this should actually be 0->1 and 0->2. (NB Daniele Galli has confirmed to me that this is a mistake in the original paper). The attached patch for calc_rates.src corrects this problem.
The revised rate gives roughly 25-30% less cooling at temperatures between 100 and 200 K.