Resumen
The unusual behavior of the spectral lines of NGC5548 during the STORM campaign demonstrated a missing piece in the structure of AGNs. For a two-month period in the middle of the campaign, the spectral lines showed a deficit in flux and a reduced response to the variations of the UV continuum. This was the first time that this behavior was unequivocally observed in an AGN. Our previous papers explained this as being due to a variable disk wind that acts as a shield and alters the SED. Here, we use Cloudy to create an atlas of photoionization models for a variety of disk winds, in order to study their effects on the SED. We show that the winds have three different cases: Case 1 winds are transparent, fully ionized, and have minimal effects on the intrinsic SED, although they can produce some line emission, especially He II or FeKα. We propose that this is the situation in most of the AGNs. Case 2 winds, which have a He++-He+ ionization front, block part of the XUV continuum but transmit much of the Lyman continuum. They lead to the observed abnormal behavior. Case 3 winds have a H+ ionization front and block much of the Lyman continuum. The results show that the presence of these winds has important effects on the spectral lines of AGNs. They will thus have an effect on the measurements of the black hole mass and the geometry of the AGN. This atlas of spectral simulations can serve as a guide to future reverberation campaigns.
| Idioma original | English |
|---|---|
| Número de artículo | abcb91 |
| Publicación | Astrophysical Journal |
| Volumen | 906 |
| N.º | 1 |
| DOI | |
| Estado | Published - ene 1 2021 |
Nota bibliográfica
Publisher Copyright:© 2020. The Author(s).
Financiación
Support for HST program number GO-13330 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. We thank NSF (1816537, 1910687), NASA (17-ATP17-0141, 19-ATP19-0188), and STScI (HST-AR-15018, HST-AR-14556). M. C. acknowledges support from STScI (HST-AR-14556.001-A), the NSF (1910687), and NASA (19-ATP19-0188). M. C. B. gratefully acknowledges support from the NSF through grant AST-2009230 to Georgia State University. M. D., G. F., and F. G. acknowledge support from the NSF (AST-1816537), NASA (ATP 17-0141), and STScI (HST-AR-13914, HST-AR-15018), as well as the Huffaker Scholarship. M. M. is supported by the Netherlands Organization for Scientific Research (NWO) through the Innovational Research Incentives Scheme Vidi grant 639.042.525.
| Financiadores | Número del financiador |
|---|---|
| Innovational Research Incentives Scheme Vidi grant | |
| National Aeronautics and Space Administration | |
| National Science Foundation Arctic Social Science Program | 1910687, 1816537, AST-1816537, AST-2009230, HST-AR-15018, 2009230, ATP 17-0141, 19-ATP19-0188, HST-AR-13914 |
| Space Telescope Science Institute | NAS5-26555 |
| HST-AR-14556 | .001-A |
| NWO-FAPESP | 639.042.525 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
Huella
Profundice en los temas de investigación de 'Space telescope and optical reverberation mapping project. XIII. An atlas of uv and x-ray spectroscopic signatures of the disk wind in NGC 5548'. En conjunto forman una huella única.Citar esto
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