Stars and Relativity - I?A?kov Borisovich Zel?dovich, I. D. Novikov - Google Books

http://books.google.de/books?id=8mpnPDa4VtYC&pg=PA344&dq=%22negative+heat+capacity%22

These authors ranked among the greatest astrophysicists of the 20th century, and their work is remarkable for its deep physical insights and clarity of presentation. Originally published as Volume 1 of Relativistic Astrophysics, this book explores general…