Zobrazeno 1 - 10
of 82
pro vyhledávání: '"T. R. Kallman"'
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 1, p 65 (2023)
Fitting plasma models to high-quality spectra is a crucial tool for deriving diagnostics about the physical conditions in various astrophysical sources. Despite decades of model development, this prescription often provides an unsatisfying descriptio
Externí odkaz:
https://doaj.org/article/5dbd3ddd55de428fa83e9018b2f06805
The problem of missing baryons in the local universe remains an open question. One propose alternative is that at low redshift missing baryons are in the form of the Warm Hot Intergalactic Medium (WHIM). In order to test this idea, we present a detai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b824cebdfb01eff4a90f3644b968d47e
http://arxiv.org/abs/2303.01527
http://arxiv.org/abs/2303.01527
Publikováno v:
AIP Conf Proc
The modeling of X-ray spectra from photoionized astrophysical plasmas has been significantly improved due to recent advancements in the theoretical and numerical frameworks, as well as a consolidated and reliable atomic database of inner-shell transi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b18342a86746202d0789f146b6579999
https://pubmed.ncbi.nlm.nih.gov/32747842
https://pubmed.ncbi.nlm.nih.gov/32747842
Autor:
T. R. Kallman, Anne M. Lohfink, John C. Raymond, Christopher S. Reynolds, Abderahmen Zoghbi, A. C. Fabian, Jon M. Miller, Jelle Kaastra, Mark Reynolds, N. Trueba, Daniel Proga
Publikováno v:
The Astrophysical Journal Letters
The very small accretion disks in ultra-compact X-ray binaries (UCXBs) are special laboratories in which to study disk accretion and outflows. We report on three sets of new (250 ks total) and archival (50 ks) Chandra/HETG observations of the "dippin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02c2cd312cc035b00391194e80f58a02
http://arxiv.org/abs/2008.01083
http://arxiv.org/abs/2008.01083
Autor:
A. Dorodnitsyn, T. R. Kallman
An accretion disk in an Active Galactic Nucleus (AGN) harbors and shields dust from external illumination: at the mid-plane of the disk around a $M_{\rm BH}=10^{7}M_{\odot}$ black hole, dust can exist at $0.1$pc from the black hole, compared to 0.5pc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::335ce9bb17416f4f9e8ee9fd77e77243
Publikováno v:
Kara, E, Dai, L, Reynolds, C S & Kallman, T 2018, ' Ultrafast outflow in tidal disruption event ASASSN-14li ', Monthly Notices of the Royal Astronomical Society, vol. 474, no. 3, pp. 3593-3598 . https://doi.org/10.1093/mnras/stx3004
At only 90 Mpc, ASASSN-14li is one of the nearest tidal disruption event (TDE) ever discovered, and because of this, it has been observed by several observatories at many wavelengths. In this paper, we present new results on archival XMM-Newton obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::202a644ae04cffdc7d161fda3be0aaa9
https://doi.org/10.1093/mnras/stx3004
https://doi.org/10.1093/mnras/stx3004
Autor:
Patrick Palmeri, M. C. Witthoeft, Pascal Quinet, Claudio Mendoza, Manuel A. Bautista, T. R. Kallman
This is the final report of a three-paper series on the K-shell photoabsorption and photoionization of trace elements, namely F, Na, P, Cl, K, Sc, Ti, V, Cr, Mn, Co, Cu and Zn. K lines and edges from such elements are observed in the X-ray spectra of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07a7b8fbddeb1f4a8c31c1ff4698217e
http://arxiv.org/abs/1807.02112
http://arxiv.org/abs/1807.02112
Autor:
Massimo Cappi, Łukasz Stawarz, Christopher S. Reynolds, Francesco Tombesi, V. Braito, Maurice A. Leutenegger, T. R. Kallman, Yoshihiro Ueda, James Reeves, Richard F. Mushotzky, Brian J. Williams
We present the spectral analysis of a 200~ks observation of the broad-line radio galaxy 3C~120 performed with the high energy transmission grating (HETG) spectrometer on board the \emph{Chandra} X-ray Observatory. We find (i) a neutral absorption com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee704335bb204993ffd145781dbfad6
http://arxiv.org/abs/1703.00516
http://arxiv.org/abs/1703.00516
Autor:
Norbert S. Schulz, T. R. Kallman, Frits Paerels, M. Sako, Michael L. McCollough, S. A. Trushkin, Duane A. Liedahl, Jon M. Miller, Guy G. Pooley, Karri I. I. Koljonen, Lia Corrales
Publikováno v:
The Astrophysical Journal. 874:51
We present model fits to the X-ray line spectrum of the well known High Mass X-ray binary Cyg X-3. The primary observational dataset is a spectrum taken with the $Chandra$ X-ray Observatory High Energy Transmission Grating (HETG) in 2006, though we c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af1ac620721abd124551f85ac705f5c3
https://doi.org/10.3847/1538-4357/ab09f8
https://doi.org/10.3847/1538-4357/ab09f8
Autor:
Randall K. Smith, M. C. Witthoeft, Adam R. Foster, Stuart Loch, T. R. Kallman, Connor P. Ballance
Publikováno v:
Fusion Science and Technology. 63:358-362
There have been long outstanding requests from the modeling community for uncertainty estimates on atomic data. This paper outlines a systematic approach from fundamental atomic structure and collisional calculations, through to well-known spectral d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d44dc271e01c69d45632e307c5859ce
https://doi.org/10.13182/fst13-a16442
https://doi.org/10.13182/fst13-a16442