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| DOI | 10.3847/1538-4357/AAEE6C | ||||
| Año | 2019 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We present an analysis of a sample of 69 local obscured Swift/Burst Alert Telescope active galactic nuclei (AGNs) with X-ray spectra from NuSTAR and infrared (IR) spectral energy distributions from Herschel and WISE. We combine this X-ray and IR phenomenological modeling and find a significant correlation between reflected hard X-ray emission and IR AGN emission, with suggestive indications that this correlation may be stronger than the one between intrinsic hard X-ray and IR emissions. This relation between the IR and reflected X-ray emission suggests that both are the result of the processing of intrinsic emission from the corona and accretion disk by the same structure. We explore the resulting implications on the underlying distribution of covering fraction for all AGNs, by generating mock observables for the reflection parameter and IR luminosity ratio using empirical relations found for the covering fraction with each quantity. We find that the observed distributions of the reflection parameter and IR-to-X-ray ratio are reproduced with broad distributions centered around covering fractions of at least similar to 40%-50%, whereas narrower distributions match our observations only when centered around covering fractions of similar to 70%-80%. Our results are consistent with both independent estimates of the covering fractions of individual objects and the typical covering fraction obtained on the basis of obscured fractions for samples of AGNs. These results suggest that the level of reprocessing in AGNs, including X-ray reflection, is related in a relatively straightforward way to the geometry of the obscuring material.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Lanz, L. | Mujer |
Dartmouth Coll - Estados Unidos
Dartmouth College - Estados Unidos |
| 2 | Hickox, R. | Hombre |
Dartmouth Coll - Estados Unidos
Dartmouth College - Estados Unidos |
| 3 | Balokovic, Mislav | - |
Harvard Smithsonian Ctr Astrophys - Estados Unidos
|
| 4 | Shimizu, Taro | Hombre |
Max Planck Inst Extraterr Phys - Alemania
Max Planck Institute for Extraterrestrial Physics - Alemania |
| 5 | Ricci, C. | Hombre |
Unversidad Diego Potales - Chile
Peking Univ - China CASSACA - Chile Nucleo de Astronomia de la Falcultad de Ingenieria - Chile Peking University - China Chinese Academy of Sciences South America Center for Astronomy - Chile Núcleo di Astronomía de la Facultad dei Ingeniería - Chile |
| 6 | Goulding, Andy D. | Hombre |
Princeton Univ - Estados Unidos
Princeton University - Estados Unidos |
| 7 | Ballantyne, David R. | Hombre |
Georgia Inst Technol - Estados Unidos
Georgia Institute of Technology - Estados Unidos |
| 8 | BAUER, FRANZ ERIK | Hombre |
Unversidad Diego Potales - Chile
Instituto Milenio de Astrofísica - Chile Space Sci Inst - Estados Unidos Nucleo de Astronomia de la Falcultad de Ingenieria - Chile Space Science Institute - Estados Unidos Núcleo di Astronomía de la Facultad dei Ingeniería - Chile |
| 9 | Chen, Chien-Ting | Hombre |
PENN STATE UNIV - Estados Unidos
Pennsylvania State University - Estados Unidos |
| 10 | Del Moro, Agnese | Mujer |
Max Planck Inst Extraterr Phys - Alemania
Max Planck Institute for Extraterrestrial Physics - Alemania |
| 10 | Moro, Agnese Del | Mujer |
Max Planck Institute for Extraterrestrial Physics - Alemania
Max Planck Inst Extraterr Phys - Alemania |
| 11 | Rigopoulou, Dimitra | Mujer |
Virginia Tech - Estados Unidos
Virginia Polytechnic Institute and State University - Estados Unidos |
| 12 | Michael, J. Koss | - |
Eureka Sci Inc - Estados Unidos
Eureka Scientific, Inc. - Estados Unidos |
| 12 | Koss, Michael J. | Hombre |
Eureka Scientific, Inc. - Estados Unidos
|
| 13 | LaMassa, Stephanie | Mujer |
Space Telescope Sci Inst - Estados Unidos
STScI - Estados Unidos Space Telescope Science Institute - Estados Unidos |
| 14 | Masini, A. | Hombre |
Dartmouth Coll - Estados Unidos
Istituto Nazionale di Astrofisica - Italia UNIV BOLOGNA - Italia Dartmouth College - Estados Unidos Osservatorio Astronomico Di Bologna - Italia Alma Mater Studiorum Università di Bologna - Italia Osservatorio Astronomico di Roma - Italia |
| 15 | Zappacosta, Luca | Hombre |
Istituto Nazionale di Astrofisica - Italia
Osservatorio Astronomico di Roma - Italia |
| Fuente |
|---|
| FONDECYT |
| CONICYT-Chile |
| National Science Foundation |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Comisión Nacional de Investigación Científica y Tecnológica |
| Ministerio de Economía, Fomento y Turismo, Chile |
| NASA |
| National Aeronautics and Space Administration |
| John Templeton Foundation |
| Basal-CATA |
| Ministry of Economy, Development, and Tourism's Millennium Science Initiative |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| ASI/INAF |
| NASA Headquarters under the NASA Earth and Space Science Fellowship Program |
| NASA through ADAP award |
| Istituto Nazionale di Astrofisica |
| Ministry of Economy, Development, and Tourism |
| CONICYT+PAI |
| China-CONICYT fund |
| CONICYT+PAI (Convocatoria Nacional subvencion a instalacion en la academia convocatoria ano) |
| CONICYT-Chile (Basal-CATA) |
| CONICYT-Chile (FONDECYT Regular) |
| black hole Initiative - John Templeton Foundation |
| National Science Foundation through CAREER |
| American Sheep Industry Association |
| Agradecimiento |
|---|
| We thank the referee for useful comments, which particularly strengthened the statistical analysis. L.L. and R.C.H. acknowledge support from NASA through grant No. NNX15AP24G. L.L. acknowledges support from NASA through grant No. NNX17AB58G. R.C.H acknowledges support from the National Science Foundation through CAREER grant No. 1554584. M.B. acknowledges support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program, grant No. NNX14AQ07H, and support from the black hole Initiative, which is funded by a grant from the John Templeton Foundation. C.R. acknowledges the CONICYT+PAI (Convocatoria Nacional subvencion a instalacion en la academia convocatoria ano 2017 PAI77170080) and financial support from FONDECYT 1141218, Basal-CATA PFB-06/2007, and the China-CONICYT fund. F.E.B. acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDECYT Regular 1141218), the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant No. IC120009, awarded to The Millennium Institute of Astrophysics, MAS. M.K. acknowledges support from NASA through ADAP award No. NNH16CT03C. A.M. acknowledges support from the ASI/INAF through grant No. I/037/12/0-011/13. L.Z. acknowledges financial support under ASI/INAF contract No. I/037/12/0. This work made use of ASURV Rev. 1.2 (Lavalley et al. 1992), which implements the methods presented in Isobe et al. (1986). |
| We thank the referee for useful comments, which particularly strengthened the statistical analysis. L.L. and R.C.H. acknowledge support from NASA through grant No. NNX15AP24G. L.L. acknowledges support from NASA through grant No. NNX17AB58G. R.C.H acknowledges support from the National Science Foundation through CAREER grant No. 1554584. M.B. acknowledges support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program, grant No. NNX14AQ07H, and support from the black hole Initiative, which is funded by a grant from the John Templeton Foundation. C.R. acknowledges the CONICYT+PAI (Convocatoria Nacional subvencion a instalacion en la academia convocatoria año 2017 PAI77170080) and financial support from FONDECYT 1141218, Basal-CATA PFB-06/2007, and the China-CONICYT fund. F.E.B. acknowledges support from CONICYT-Chile (Basal-CATA PFB-06/2007, FONDECYT Regular 1141218), the Ministry of Economy, Development, and Tourism’s Millennium Science Initiative through grant No. IC120009, awarded to The Millennium Institute of Astrophysics, MAS. M.K. acknowledges support from NASA through ADAP award No. NNH16CT03C. A.M. acknowledges support from the ASI/INAF through grant No. I/037/12/0-011/13. L.Z. acknowledges financial support under ASI/INAF contract No. I/037/12/0. This work made use of ASURV Rev. 1.2 (Lavalley et al. 1992), which implements the methods presented in Isobe et al. (1986). Facilities: Herschel, NuSTAR, Swift, WISE. |