CIELO-RGS : a catalogue of soft X-ray ionized emission lines
| Autor: | Junjie Mao, Peter Kretschmar, Jelle Kaastra, Matteo Guainazzi, P. M. Rodriguez-Pascual, Victoria Grinberg, A. Ibarra, Eleni Kalfountzou, Maria Santos-Lleo, Gabi Matzeu, Rosario González-Riestra, Michael Parker |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics Active galactic nucleus Computer Science::Information Retrieval Astrophysics::High Energy Astrophysical Phenomena 010401 analytical chemistry FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences Galaxy Spectral line 0104 chemical sciences Stars Space and Planetary Science 0103 physical sciences Cielo Emission spectrum Astrophysics - High Energy Astrophysical Phenomena Spectroscopy 010303 astronomy & astrophysics Equivalent width Astrophysics::Galaxy Astrophysics QC |
| Zdroj: | Astronomy and Astrophysics (0004-6361) Astronomy and Astrophysics (0004-6361), 625, A122 |
| ISSN: | 0004-6361 |
| Popis: | High-resolution X-ray spectroscopy has advanced our understanding of the hot Universe by revealing physical properties like kinematics, temperature, and abundances of the astrophysical plasmas. Despite the technical and scientific achievements, the lack of scientific products at a level higher than count spectra is hampering full scientific exploitation of high-quality data. This paper introduces the Catalogue of Ionized Emission Lines Observed by the Reflection Grating Spectrometer (CIELO-RGS) onboard the XMM-Newton space observatory. The CIELO-RGS catalogue aims to facilitate the exploitation of emission features in the public RGS spectra archive, in particular, to perform the correlation between X-ray spectral diagnostics parameters with measurements at other wavelengths. This paper focuses on the methodology of catalogue generation, describing the automated line detection algorithm. A moderate sample (~2400 observations) of high-quality RGS spectra available at XMM-Newton Science Archive is used as our starting point. A list of potential emission lines is selected based on a multi-scale peak detection algorithm in a uniform and automated way without prior assumption on the underlying astrophysical model. The candidate line list is validated via spectral fitting with simple continuum and line profile models. We also compare the catalogue content with published literature results on a small number of exemplary sources. We generate a catalogue of emission lines ~12000 detected in ~1600 observations toward stars, X-ray binaries, supernovae remnants, active galactic nuclei, and groups and clusters of galaxies. For each line, we report the observed wavelength, broadening, energy and photon flux, and equivalent width, etc. accepted to A&A |
| Databáze: | OpenAIRE |
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