Search

Image Details

View Article Bookmark & Share

Choose export citation format:

Export Citation
Large resolution
Hi-Resolution Export to PDF

First Look at the High-resolution X-Ray Spectra in the Highly Absorbed High-mass X-Ray Binary IGR J16318−4848 with Chandra

  • Authors: Pragati Pradhan, David P. Huenemoerder, Biswajit Paul, Roberta Amato, Ralf Ballhausen, Claude Canizares, Joel B. Coley, Camille M. Diez, Felix Fürst, Poshak Gandhi, Victoria Grinberg, Sean Gunderson, Richard Ignace, Peter Kretschmar, Maximilian Lorenz, Christian Malacaria, Antonios Manousakis, Silvia Martínez-Núñez, Katja Pottschmidt, Jérôme Rodriguez, Richard E. Rothschild, José M. Torrejón, Bert Vander Meulen, Jörn Wilms

Pragati Pradhan et al 2026 The Astrophysical Journal 1004 .

  • Provider: AAS Journals

Caption: Figure 6.

Variation of spectral parameters with orbital phase. From top to bottom: absorption (NH, 1022 cm−2), power-law normalization (photons keV−1 cm−2 s−1), Fe Kα1 line intensity (photons cm−2 s−1), Fe Kα1 line energy (keV), Compton shoulder normalization (photons cm−2 s−1), Fe Kβ normalization (photons cm−2 s−1), Fe Kβ line energy (keV), and Ni Kα normalization (photons cm−2 s−1). The photon index and the Ni Kα line energy were fixed to their phase-averaged values. Note the increased absorption at phase 0.33 is accompanied by larger normalization of the Compton shoulder. Also, note that the energy of the Fe Kα line shows a periodic orbital modulation. Errors are quoted at 90% confidence level.

Other Images in This Article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Image in this article
Copyright and Terms & Conditions

Additional terms of reuse