The Hawking temperature in the context of dark energy for Reissner–Nordstrom and Kerr background Goutam Manna and Debashis Gangopadhyay Eur. Phys. J. C, 74 3 (2014) 2811 Published online: 18 March 2014 DOI: 10.1140/epjc/s10052-014-2811-9