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Laurent, O.; Mirabel, I.F.; Charmandaris, V.; Gallais, P.; Madden, S.C.; Sauvage, M.; Vigroux, L.; Cesarsky, C. "Mid-infrared diagnostics to distinguish AGNs from starbursts" (2000) Astronomy and Astrophysics. 359(3):887-899
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Abstract:

We present new mid-infrared (MIR) diagnostics to distinguish emission of active galactic nuclei (AGN) from that originating in starburst regions. Our method uses empirical spectroscopic criteria based on the fact that MIR emission from star forming or active galaxies arises mostly from HII regions, photo-dissociation regions (PDRs) and AGNs. The analysis of the strength of the 6.2 μm Unidentified Infrared Band (UIB) and the MIR continuum shows that UIBs are very faint or absent in regions harboring the intense and hard radiation fields of AGNs and pure HII regions, where the UIB carriers could be destroyed. The MIR signature of AGNs is the presence of an important continuum in the 3-10 μm band which originates from very hot dust heated by the intense AGN radiation field. Using these two distinct spectral properties found in our MIR templates, we build diagnostic diagrams which provide quantitative estimates of the AGN, PDR and HII region contribution in a given MIR spectrum. This new MIR classification can be used to reveal the presence of AGNs highly obscured by large columns of dust.

Registro:

Documento: Artículo
Título:Mid-infrared diagnostics to distinguish AGNs from starbursts
Autor:Laurent, O.; Mirabel, I.F.; Charmandaris, V.; Gallais, P.; Madden, S.C.; Sauvage, M.; Vigroux, L.; Cesarsky, C.
Filiación:CEA/DSM/DAPNIA, Service d'Astrophysique, 91191 Gif-sur-Yvette, France
Max-Planck-Institut für Extraterrestrische Physik, Postfach 1603, 85740 Garching, Germany
Instituto de Astronomía, Fisica del Espacio. cc 67, 1428 Buenos Aires, Argentina
Observatoire de Paris, DEMIRM, 61 Av. de l'Observatoire, 75014 Paris, France
Astronomy Department, Cornell University, Ithaca, NY 14853, United States
European Southern Observatory, 85748 Garching, Germany
Palabras clave:Galaxies: active; Galaxies: starburst; Infrared: galaxies
Año:2000
Volumen:359
Número:3
Página de inicio:887
Página de fin:899
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v359_n3_p887_Laurent

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Citas:

---------- APA ----------
Laurent, O., Mirabel, I.F., Charmandaris, V., Gallais, P., Madden, S.C., Sauvage, M., Vigroux, L.,..., Cesarsky, C. (2000) . Mid-infrared diagnostics to distinguish AGNs from starbursts. Astronomy and Astrophysics, 359(3), 887-899.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v359_n3_p887_Laurent [ ]
---------- CHICAGO ----------
Laurent, O., Mirabel, I.F., Charmandaris, V., Gallais, P., Madden, S.C., Sauvage, M., et al. "Mid-infrared diagnostics to distinguish AGNs from starbursts" . Astronomy and Astrophysics 359, no. 3 (2000) : 887-899.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v359_n3_p887_Laurent [ ]
---------- MLA ----------
Laurent, O., Mirabel, I.F., Charmandaris, V., Gallais, P., Madden, S.C., Sauvage, M., et al. "Mid-infrared diagnostics to distinguish AGNs from starbursts" . Astronomy and Astrophysics, vol. 359, no. 3, 2000, pp. 887-899.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v359_n3_p887_Laurent [ ]
---------- VANCOUVER ----------
Laurent, O., Mirabel, I.F., Charmandaris, V., Gallais, P., Madden, S.C., Sauvage, M., et al. Mid-infrared diagnostics to distinguish AGNs from starbursts. Astron. Astrophys. 2000;359(3):887-899.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v359_n3_p887_Laurent [ ]