Context. In this work, we test feedback propagation models on the test case of 2MASS 0918+2117 (2M0918), a z = 0.149 X-ray variable AGN that shows tentative evidence for nuclear ultra-fast outflows (UFOs) in a 2005 XMM-Newton observation. We also investigate whether UFOs can be related to the observed X-ray variability. Aims. We observed 2M0918 with XMM-Newton and NuSTAR in 2020 to confirm the presence of and characterize the UFOs. We performed a kinematic analysis of the publicly available 2005 SDSS optical spectrum to reveal and measure the properties of galaxy-scale ionized outflows. Furthermore, we constructed 20-year-long light curves of observed flux, line-of-sight column density, and intrinsic accretion rate from the spectra of the first four SRG/eROSITA all-sky surveys and archival observations from Chandra and XMM-Newton. Methods. We detect UFOs with v ~ 0.16c and galaxy-scale ionized outflows with velocities of ~700 km s-1. We also find that the drastic X-ray variability (factors > 10) can be explained in terms of variable obscuration and variable intrinsic luminosity. Results. Comparing the energetics of the two outflow phases, 2M0918 is consistent with momentum-driven wind propagation. 2M0918 expands the sample of AGN with both UFOs and ionized gas winds from 5 to 6 and brings the sample of AGN hosting multiscale outflows to 19, contributing to a clearer picture of feedback physics. From the variations in accretion rate, column density, and ionization level of the obscuring medium, we propose a scenario that connects obscurers, an accretion enhancement, and the emergence of UFOs.

Baldini, P., Lanzuisi, G., Brusa, M., Merloni, A., Gkimisi, K., Perna, M., et al. (2024). Winds of change: The nuclear and galaxy-scale outflows and the X-ray variability of 2MASS 0918+2117. ASTRONOMY & ASTROPHYSICS, 686, 1-17 [10.1051/0004-6361/202349071].

Winds of change: The nuclear and galaxy-scale outflows and the X-ray variability of 2MASS 0918+2117

Baldini P.
Writing – Original Draft Preparation
;
Brusa M.
Conceptualization
;
Musiimenta B.
Membro del Collaboration Group
;
Vignali C.
Writing – Review & Editing
;
Marchesi S.
Writing – Review & Editing
;
2024

Abstract

Context. In this work, we test feedback propagation models on the test case of 2MASS 0918+2117 (2M0918), a z = 0.149 X-ray variable AGN that shows tentative evidence for nuclear ultra-fast outflows (UFOs) in a 2005 XMM-Newton observation. We also investigate whether UFOs can be related to the observed X-ray variability. Aims. We observed 2M0918 with XMM-Newton and NuSTAR in 2020 to confirm the presence of and characterize the UFOs. We performed a kinematic analysis of the publicly available 2005 SDSS optical spectrum to reveal and measure the properties of galaxy-scale ionized outflows. Furthermore, we constructed 20-year-long light curves of observed flux, line-of-sight column density, and intrinsic accretion rate from the spectra of the first four SRG/eROSITA all-sky surveys and archival observations from Chandra and XMM-Newton. Methods. We detect UFOs with v ~ 0.16c and galaxy-scale ionized outflows with velocities of ~700 km s-1. We also find that the drastic X-ray variability (factors > 10) can be explained in terms of variable obscuration and variable intrinsic luminosity. Results. Comparing the energetics of the two outflow phases, 2M0918 is consistent with momentum-driven wind propagation. 2M0918 expands the sample of AGN with both UFOs and ionized gas winds from 5 to 6 and brings the sample of AGN hosting multiscale outflows to 19, contributing to a clearer picture of feedback physics. From the variations in accretion rate, column density, and ionization level of the obscuring medium, we propose a scenario that connects obscurers, an accretion enhancement, and the emergence of UFOs.
2024
Baldini, P., Lanzuisi, G., Brusa, M., Merloni, A., Gkimisi, K., Perna, M., et al. (2024). Winds of change: The nuclear and galaxy-scale outflows and the X-ray variability of 2MASS 0918+2117. ASTRONOMY & ASTROPHYSICS, 686, 1-17 [10.1051/0004-6361/202349071].
Baldini, P.; Lanzuisi, G.; Brusa, M.; Merloni, A.; Gkimisi, K.; Perna, M.; Lopez, I. E.; Bertola, E.; Igo, Z.; Waddell, S.; Musiimenta, B.; Aydar, C.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1002412
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