Hubble Space Telescope Observations of [O~III] Emission in Nearby QSO2s: Physical Properties of the Ionised Outflows
| العنوان: | Hubble Space Telescope Observations of [O~III] Emission in Nearby QSO2s: Physical Properties of the Ionised Outflows |
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| المؤلفون: | Thaisa Storchi-Bergmann, Anna Trindade Falcao, C. M. Gaskell, Travis Fischer, Henrique R. Schmitt, D. M. Crenshaw, Martin Ward, Martin Elvis, S. B. Kraemer, Richard F. Mushotzky, T. J. Turner, Mitchell Revalski, Fred Hamann, Hagai Netzer, Marianne Vestergaard, J. B. Hutchings, Luis C. Ho |
| المصدر: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Falcao, A T, Kraemer, S B, Fischer, T C, Crenshaw, D M, Revalski, M, Schmitt, H R, Vestergaard, M, Elvis, M, Gaskell, C M, Hamann, F, Ho, L C, Hutchings, J, Mushotzky, R, Netzer, H, Storchi-Bergmann, T, Turner, T J & Ward, M J 2021, ' Hubble Space Telescope observations of [O III] emission in nearby QSO2s : physical properties of the ionized outflows ', Monthly Notices of the Royal Astronomical Society, vol. 500, no. 1, pp. 1491-1504 . https://doi.org/10.1093/mnras/staa3239 |
| بيانات النشر: | arXiv, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | ACTIVE GALACTIC NUCLEI, ULTRAVIOLET, Astrophysics::High Energy Astrophysical Phenomena, Library science, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, STAR-FORMATION, Spitzer Space Telescope, Basic research, Hubble space telescope, 0103 physical sciences, Cinemática, Astrophysics::Solar and Stellar Astrophysics, Space research, BLACK-HOLES, Quasars, 010303 astronomy & astrophysics, Naval research, Astrophysics::Galaxy Astrophysics, SEYFERT-1 GALAXIES, Kinematics and dynamics [Galaxies], Independent research, Physics, FEEDBACK, 010308 nuclear & particles physics, Astronomy and Astrophysics, Quasars [Galaxies], Astrophysics - Astrophysics of Galaxies, Active [Galaxies], Galáxias ativas, NARROW-LINE REGION, GAS, Space and Planetary Science, AGN OUTFLOWS, Astrophysics of Galaxies (astro-ph.GA), Nucleo galatico |
| الوصف: | We use Hubble Space Telescope (HST)/ Space Telescope Imaging Spectrograph (STIS) long-slit G430M and G750M spectra to analyse the extended [O~III] 5007A emission in a sample of twelve nearby (z < 0.12) luminous (L_bol > 1.6 x 10^45 erg s^-1) QSO2s. The purpose of the study is to determine the properties of the mass outflows of ionised gas and their role in AGN feedback. We measure fluxes and velocities as functions of radial distances. Using Cloudy models and ionising luminosities derived from [O~III] 5007A, we are able to estimate the densities for the emission-line gas. From these results, we derive masses of [O~III]-emitting gas, mass outflow rates, kinetic energies, kinetic luminosities, momenta and momentum flow rates as a function of radial distance for each of the targets. For the sample, masses are several times 10^3 - 10^7 solar masses and peak outflow rates are 9.3 x 10^-3 Msun/yr to 10.3 Msun/yr. The peak kinetic luminosities are 3.4 x 10^-8 to 4.9 x 10^-4 of the bolometric luminosity, which does not approach the 5.0 x 10^-3 - 5.0 x 10^-2 range required by some models for efficient feedback. For Mrk 34, which has the largest kinetic luminosity of our sample, in order to produce efficient feedback there would have to be 10 times more [O~III]-emitting gas than we detected at its position of maximum kinetic luminosity. Three targets show extended [O~III] emission, but compact outflow regions. This may be due to different mass profiles or different evolutionary histories. 14 pages, 11 Figures, accepted for publication in the MNRAS |
| وصف الملف: | application/pdf |
| DOI: | 10.48550/arxiv.2010.08050 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26f20341bb47204e77735ed6251845aa |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....26f20341bb47204e77735ed6251845aa |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.48550/arxiv.2010.08050 |
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