CIELO-RGS: a catalogue of soft X-ray ionized emission lines

Junjie Mao, Jelle S. Kaastra, Matteo Guainazzi, Rosario González-Riestra, Maria Santos-Lleó, Peter Kretschmar, Victoria Grinberg, Eleni Kalfountzou, Aitor Ibarra, Gabi Matzeu, Michael Parker, Pedro Rodríguez-Pascual

Research output: Contribution to journalArticle

Abstract

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.
LanguageEnglish
Article numberA122
Number of pages16
JournalAstronomy and Astrophysics
Volume625
DOIs
Publication statusPublished - 24 May 2019

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catalogs
spectrometer
gratings
spectrometers
x rays
XMM-Newton telescope
exploitation
lists
newton
astrophysics
wavelength
data quality
X-ray spectroscopy
supernova remnants
active galactic nuclei
wavelengths
observatory
physical property
kinematics
observatories

Keywords

  • x-rays
  • spectroscopic
  • spectroscopy

Cite this

Mao, J., Kaastra, J. S., Guainazzi, M., González-Riestra, R., Santos-Lleó, M., Kretschmar, P., ... Rodríguez-Pascual, P. (2019). CIELO-RGS: a catalogue of soft X-ray ionized emission lines. Astronomy and Astrophysics, 625, [A122]. https://doi.org/10.1051/0004-6361/201935368
Mao, Junjie ; Kaastra, Jelle S. ; Guainazzi, Matteo ; González-Riestra, Rosario ; Santos-Lleó, Maria ; Kretschmar, Peter ; Grinberg, Victoria ; Kalfountzou, Eleni ; Ibarra, Aitor ; Matzeu, Gabi ; Parker, Michael ; Rodríguez-Pascual, Pedro. / CIELO-RGS : a catalogue of soft X-ray ionized emission lines. In: Astronomy and Astrophysics. 2019 ; Vol. 625.
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Mao, J, Kaastra, JS, Guainazzi, M, González-Riestra, R, Santos-Lleó, M, Kretschmar, P, Grinberg, V, Kalfountzou, E, Ibarra, A, Matzeu, G, Parker, M & Rodríguez-Pascual, P 2019, 'CIELO-RGS: a catalogue of soft X-ray ionized emission lines' Astronomy and Astrophysics, vol. 625, A122. https://doi.org/10.1051/0004-6361/201935368

CIELO-RGS : a catalogue of soft X-ray ionized emission lines. / Mao, Junjie; Kaastra, Jelle S.; Guainazzi, Matteo; González-Riestra, Rosario; Santos-Lleó, Maria; Kretschmar, Peter; Grinberg, Victoria; Kalfountzou, Eleni; Ibarra, Aitor; Matzeu, Gabi; Parker, Michael; Rodríguez-Pascual, Pedro.

In: Astronomy and Astrophysics, Vol. 625, A122, 24.05.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - CIELO-RGS

T2 - Astronomy and Astrophysics

AU - Mao, Junjie

AU - Kaastra, Jelle S.

AU - Guainazzi, Matteo

AU - González-Riestra, Rosario

AU - Santos-Lleó, Maria

AU - Kretschmar, Peter

AU - Grinberg, Victoria

AU - Kalfountzou, Eleni

AU - Ibarra, Aitor

AU - Matzeu, Gabi

AU - Parker, Michael

AU - Rodríguez-Pascual, Pedro

PY - 2019/5/24

Y1 - 2019/5/24

N2 - 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.

AB - 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.

KW - x-rays

KW - spectroscopic

KW - spectroscopy

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DO - 10.1051/0004-6361/201935368

M3 - Article

VL - 625

JO - Astronomy and Astrophysics

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Mao J, Kaastra JS, Guainazzi M, González-Riestra R, Santos-Lleó M, Kretschmar P et al. CIELO-RGS: a catalogue of soft X-ray ionized emission lines. Astronomy and Astrophysics. 2019 May 24;625. A122. https://doi.org/10.1051/0004-6361/201935368