ISMabs: a comprehensive X-ray absorption model for the interstellar medium
arXiv:1412.3813 · doi:10.1088/0004-637X/800/1/29
Abstract
We present an X-ray absorption model for the interstellar medium, to be referred to as ISMabs, that takes into account both neutral and ionized species of cosmically abundant elements, and includes the most accurate atomic data available. Using high-resolution spectra from eight X-ray binaries obtained with the Chandra High Energy Transmission Grating Spectrometer, we proceed to benchmark the atomic data in the model particularly in the neon K-edge region. Compared with previous photoabsorption models, which solely rely on neutral species, the inclusion of ions leads to improved spectral fits. Fit parameters comprise the column densities of abundant contributors that allow direct estimates of the ionization states. ISMabs is provided in the appropriate format to be implemented in widely used X-ray spectral fitting packages such as XSPEC, ISIS and SHERPA.
14 page, 13 figures
References in corpus (28)
- On the Absorption of X-rays in the Interstellar Medium
- Thermonuclear (type-I) X-ray bursts observed by the Rossi X-ray Timing Explorer
- Sherpa: a Mission-Independent Data Analysis Application
- A catalogue of low-mass X-ray binaries in the Galaxy, LMC, and SMC (Fourth edition)
- GX 339-4: the distance, state transitions, hysteresis and spectral correlations
- The Optical Light Curves of Cygnus X-2 (V1341 Cyg) and the Mass of its Neutron Star
- High-Resolution X-ray Spectroscopy of the Interstellar Medium: Structure at the Oxygen Absorption Edge
- Suzaku Results on Cygnus X-1 in the Low/Hard State
- High-Resolution X-ray Spectroscopy of the Interstellar Medium II: Neon and Iron Absorption Edges
- ISM composition through X-ray spectroscopy of LMXBs
- Chandra X-ray spectroscopy of the focused wind in the Cygnus X-1 system. I. The non-dip spectrum in the low/hard state
- K-shell Photoabsorption of Oxygen Ions
- XMM-Newton observation of 4U 1820-30: Broad band spectrum and the contribution of the cold interstellar medium
- Radio detections of the neutron star X-ray binaries 4U 1820-30 and Ser X-1 in soft X-ray states
- High-Resolution X-ray Spectroscopy of the Interstellar Medium
- Absorption and scattering by interstellar dust: XMM-Newton observation of Cyg X-2
- On Neutral Absorption and Spectral Evolution in X-ray Binaries
- Nitrogen K-shell photoabsorption
- High resolution X-ray spectroscopy of the multiphase interstellar medium toward Cyg X-2
- Photoionization modeling of oxygen K absorption in the interstellar medium:the Chandra grating spectra of XTE J1817-330
- A search for iron emission lines in the Chandra X-ray spectra of neutron star low-mass X-ray binaries
- A Comprehensive X-ray Absorption Model for Atomic Oxygen
- Determining the grain composition of the interstellar medium with high resolution X-ray spectroscopy
- Wavelength Measurements of K Transitions of Oxygen, Neon, and Magnesium with X-ray Absorption Lines
- K-shell photoionization of Na-like to Cl-like ions of Mg, Si, S, Ar, and Ca
- Physical properties of the interstellar medium using high-resolution Chandra spectra: O K-edge absorption
- Modeling the oxygen K absorption in the interstellar medium: an {\it XMM}-Newton view of Sco X-1
- K-Shell Photoabsorption of Magnesium Ions
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- Long term variability of Cygnus X-1: VII. Orbital variability of the focussed wind in Cyg X-1 / HDE 226868 system
- Oxygen, neon, and iron X-ray absorption in the local interstellar medium
- Probing the structure of the gas in the Milky Way through X-ray high resolution spectroscopy
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- What we learn from the X-ray grating spectra of Nova SMC 2016
- X-ray Absorption in Young Core-Collapse Supernova Remnants
- Photoionization of astrophysically relevant atomic ions at PIPE
- On the detectability of CO molecules in the Interstellar Medium via X-ray spectroscopy
- Carbon X-ray absorption in the local ISM: fingerprints in X-ray Novae spectra
- Searching for the warm-hot intergalactic medium using XMM-Newton high-resolution X-ray spectra
- Nitrogen X-ray absorption in the local ISM
- CO-to-H_2 Conversion Factor of Molecular Clouds using X-Ray Shadows
- High-Resolution X-Ray Spectroscopy of Interstellar Iron Toward Cygnus X-1 and GX 339-4
- Probing the physical properties of the intergalactic medium using blazars
- A search for the missing baryons with X--ray absorption lines towards the blazar 1ES 1553+113
- On the discrepancy between the X-ray and UV absorption measurements of OVI in the local ISM
- 3D mapping of the neutral X-ray absorption in the local interstellar medium: The Gaia and XMM-Newton synergy
- Rearrangement of electron shells and interchannel interaction in the K photoabsorption of Ne
- Argon X-ray absorption in the local ISM
- Excess Galactic molecular absorption toward the radio galaxy 3C 111
- SRG/eROSITA 3D mapping of the ISM using X-ray absorption spectroscopy
- Characterization of the warm--hot intergalactic medium near the Coma cluster through high--resolution spectroscopy of X Comae
- A constant pressure model for the warm absorber in Mrk 509