Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Hasoglu, M. F."'
We present the first comprehensive analysis of the argon K-edge absorption region (3.1-4.2 \AA) using high-resolution HETGS {\it Chandra} spectra of 33 low-mas X-ray binaries. Utilizing R-matrix theory, we computed new K photoabsorption cross-section
Externí odkaz:
http://arxiv.org/abs/2408.02734
Autor:
Gatuzz, Efrain, Gorczyca, T. W., Hasoglu, M. F., Costantini, E., García, Javier A., Kallman, Timothy R.
We present a study S K-edge using high-resolution HETGS {\it Chandra} spectra of 36 low-mas X-ray binaries. For each source, we have estimated column densities for {\rm S}~{\sc i}, {\rm S}~{\sc ii}, {\rm S}~{\sc iii}, {\rm S}~{\sc xiv}, {\rm S}~{\sc
Externí odkaz:
http://arxiv.org/abs/2310.11498
We present a detailed analysis of the gaseous component of the Si K edge using high-resolution Chandra spectra of low-mass X-ray binaries. We fit the spectra with amodified version of the ISMabs model, including new photoabsorption cross sectionscomp
Externí odkaz:
http://arxiv.org/abs/2007.00013
We present a study of the C K-edge using high-resolution LETGS Chandra spectra of four novae during their super-soft-source (SSS) phase. We identified absorption lines due to C~ii K$\alpha$, C~iii K$\alpha$ and C~ iii K$\beta$ resonances. We used the
Externí odkaz:
http://arxiv.org/abs/1806.01274
Autor:
Gorczyca, T. W., Bautista, M. A., Hasoglu, M. F., García, J., Gatuzz, E., Kaastra, J. S., Kallman, T. R., Manson, S. T., Mendoza, C., Raassen, A. J. J., de Vries, C. P., Zatsarinny, O.
An analytical formula is developed to represent accurately the photoabsorption cross section of O I for all energies of interest in X-ray spectral modeling. In the vicinity of the Kedge, a Rydberg series expression is used to fit R-matrix results, in
Externí odkaz:
http://arxiv.org/abs/1310.1889
Autor:
Hasoglu, M. F., Abdel-Naby, Sh. A., Gatuzz, E., Garcia, J., Kallman, T. R., Mendoza, C., Gorczyca, T. W.
X-ray photoabsorption cross sections have been computed for all magnesium ions using the $R$-matrix method. A comparison with the other available data for Mg II-Mg X shows good qualitative agreement in the resultant resonance shapes. However, for the
Externí odkaz:
http://arxiv.org/abs/1303.4282
A theoretical investigation of photoabsorption and photoionization of Fe^{14+} extending beyond an earlier frame transformation R-matrix implementation is performed using a fully-correlated, Breit-Pauli R-matrix formulation including both fine-struct
Externí odkaz:
http://arxiv.org/abs/1202.4800
K-shell photoabsorption cross sections for the isonuclear C I - C IV ions have been computed using the R-matrix method. Above the K-shell threshold, the present results are in good agreement with the independent-particle results of Reilman & Manson (
Externí odkaz:
http://arxiv.org/abs/1003.3639
Autor:
Gatuzz, Efrain, Gorczyca, T W, Hasoglu, M F, Costantini, E, García, Javier A, Kallman, Timothy R
Publikováno v:
Monthly Notices of the Royal Astronomical Society; 1/15/2024, Vol. 527 Issue 2, p1648-1655, 8p
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