ASTRO-H White Paper - New Spectral Features

R. K. Smith, H. Odaka, M. Audard, G. V. Brown, M. E. Eckart, Y. Ezoe, A. Foster, M. Galeazzi, K. Hamaguchi, K. Ishibashi, K. Ishikawa, J. Kaastra, S. Katsuda, M. Leutenegger, E. Miller, I. Mitsuishi, H. Nakajima, T. Ogawa, F. Paerels, F. S. Porter, K. Sakai, M. Sawada, Y. Takei, Y. Tanaka, Y. Tsuboi, H. Uchida, E. Ursino, S. Watanabe, H. Yamaguchi, N. Yamasaki, for the ASTRO-H Science Working Group

Published 2014-12-03Version 1

This white paper addresses selected new (to X-ray astronomy) physics and data analysis issues that will impact ASTRO-H SWG observations as a result of its high-spectral-resolution X-ray microcalorimeter, the focussing hard X-ray optics and corresponding detectors, and the low background soft gamma-ray detector. We concentrate on issues of atomic and nuclear physics, including basic bound-bound and bound-free transitions as well as scattering and radiative transfer. The major topic categories include the physics of charge exchange, solar system X-ray sources, advanced spectral model, radiative transfer, and hard X-ray emission lines and sources.