The XSTAR Atomic Database

Atoms

JavierA. García¹  Claudio Mendoza²  ThomasW. Gorczyca²  ManuelA. Bautista²  Efraín Gatuzz³  TimothyR. Kallman⁴  MichaelC. Witthoeft⁴  Jérôme Deprince⁵  Pascal Quinet⁵  Patrick Palmeri⁵ 

[1] Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA;Department of Physics, Western Michigan University, Kalamazoo, MI 49008, USA;Max Planck Institute for Extraterrestrial Physics, Gießenbachstraße 1, 85748 Garching bei München, Germany;NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA;Physique Atomique et Astrophysique, Université de Mons—UMONS, B-7000 Mons, Belgium;

关键词: xstar;    atomic databases;    atomic processes;    line formation;    X-rays;    high-density plasmas;   

DOI  :  10.3390/atoms9010012

来源: DOAJ

【 摘 要 】

We describe the atomic database of the xstar spectral modeling code, summarizing the systematic upgrades carried out in the past twenty years to enable the modeling of K-lines from chemical elements with atomic number $Z\le 30$ and recent extensions to handle high-density plasmas. Such plasma environments are found, for instance, in the inner region of accretion disks round compact objects (neutron stars and black holes), which emit rich information about the system’s physical properties. Our intention is to offer a reliable modeling tool to take advantage of the outstanding spectral capabilities of the new generation of X-ray space telescopes (e.g., xrism and athena) to be launched in the coming years. Data curatorial aspects are discussed and an updated list of reference sources is compiled to improve the database provenance metadata. Two xstar spin-offs—the ISMabs absorption model and the uaDB database—are also described.

【 授权许可】

Unknown