A new powerful and highly variable disc wind in an AGN–star-forming galaxy, the case of MCG-03-58-007

Braito, V.; Reeves, J. N.; Matzeu, G. A.; Severgnini, P.; Ballo, L.; Caccianiga, A.; Campana, S.; Cicone, C.; Ceca, R. Della; Turner, T. J.

doi:10.1093/mnras/sty1697

Cited by 35 publications

(39 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The Fe K absorber Abs1 is observed in both XMM-Newton observations and is consistent with a Fe xxv. Abs2, a candidate UFO, is characterised by a mildly outflowing velocity (v out =(0.23±0.03)c) and its ionisation and column density are compatible with what often observed for UFOs (Tombesi et al 2011;Parker et al 2017;Reeves et al 2018;Parker et al 2018;Braito et al 2018;Serafinelli et al 2019;Matzeu et al 2019).…”

Section: Conclusion and Summarysupporting

confidence: 80%

A broadband X-ray view of the NLSy1 1E 0754.6+3928

Middei

Tombesi

Vagnetti

et al. 2020

A&A

View full text Add to dashboard Cite

Context. The soft X-ray band of many active galactic nuclei (AGN) is affected by obscuration due to partially ionised matter crossing our line of sight. In this context, two past XMM-Newton observations (6 months apart) and a simultaneous NuSTAR-Swift (∼8 years later) exposure of the Narrow Line Seyfert 1 galaxy 1E 0754.6+392.8 revealed an intense and variable WA and hints of additional absorbers in the Fe Kα band. Aims. We aim at providing the first X-ray characterisation of this AGN discussing its broadband (0.3-79 keV) spectrum and temporal properties. Methods. We conduct a temporal and spectroscopic analysis on two ∼10 ks (net exposure) XMM-Newton snapshots performed in April and October 2006. We also study the high energy behaviour of 1E 0754.6+392.8 modelling its broadband spectrum using simultaneous Swift-NuSTAR data. Both phenomenological and physically motivated models are tested. Results. We find the presence of flux variability (∼150% and 30% for 0.3-2 and 2-10 keV bands, respectively) and spectral changes at months timescales (∆Γ ∼0.4). A reflection component that is consistent with being constant over years and arising from relatively cold material far from the central super massive black hole is detected. The main spectral feature shaping the 1E 0754.6+392.8 spectrum is a warm absorber. Such a component is persistent over the years and variability of its ionisation and column density is observed down on months in the ranges 3×10 22 cm −2 N H 7.2 × 10 22 cm −2 and 1.5 log(ξ/erg s −1 cm) 2.1. Despite the short exposures, we find possible evidence of two additional high-ionisation and high-velocity outflow components in absorption. Conclusions. Our analysis suggests the existence of a complex system of absorbers in 1E 0754.6+392.8. Longer exposures are mandatory in order to characterise, on more solid grounds, the absorbers in this AGN.

show abstract

Section: Conclusion and Summarysupporting

confidence: 80%

A broadband X-ray view of the NLSy1 1E 0754.6+3928

Middei

Tombesi

Vagnetti

et al. 2020

A&A

View full text Add to dashboard Cite

show abstract

“…Direct evidence for AGN feedback in this source was found with the discovery of an X-ray highly ionized UFO with v 0.1c and log(ξ/erg cm s −1 ) ∼ 5.5 ( 2 ) in the Suzaku spectrum in 2010 (Braito et al 2018;Matzeu et al 2019). Two deep absorption troughs at E = 7.4 keV and E = 8.5 keV, which can be associated with the blue-shifted transitions of Fe XXV and Fe XXVI, strongly indicate the presence of two highly ionized, high column density and fast outflowing absorbers with velocities of v 1 ∼ 0.1c and v 2 ∼ 0.2c.…”

Section: The Target Galaxy: Mcg-03-58-007mentioning

confidence: 87%

“…Two deep absorption troughs at E = 7.4 keV and E = 8.5 keV, which can be associated with the blue-shifted transitions of Fe XXV and Fe XXVI, strongly indicate the presence of two highly ionized, high column density and fast outflowing absorbers with velocities of v 1 ∼ 0.1c and v 2 ∼ 0.2c. Follow-up XMM-Newton and NuSTAR observations in 2015 confirmed the presence of the v 1 = 0.1c zone of the wind and possibly of an even faster zone (Braito et al 2018). These observations also showed an occultation event consistent with an increase of the disk-wind opacity.…”

Section: The Target Galaxy: Mcg-03-58-007mentioning

confidence: 88%

“…MCG-03-58-007 is a nearby (z = 0.03236, redshift measurement refined in this work, see section 3.1) Seyfert type 2 galaxy (L AG N ∼ 3 · 10 45 erg s −1 ( 1 ), for details see Braito et al 2018) and LIRG (L I R = 2.3 · 10 11 L , Gruppioni et al 2016). A star formation rate of SFR=20.1 ± 0.9 M yr −1 was estimated by Gruppioni et al (2016), by using the Kennicutt (1998) relation converted to a Chabrier IMF.…”

Section: The Target Galaxy: Mcg-03-58-007mentioning

confidence: 99%

“…Indeed, in IRAS F11119+3257 the molecular outflow energetics revisited using new ALMA data appears more consistent with the momentum conserving scenario (Veilleux et al 2017). Another notable recent counter example is the quasar PDS 456, where energy-conserving feedback seems to have been ruled out (Bischetti et al 2019). Increased sample sizes are delivering a much broader range of momentum-boost values (García-Burillo et al 2015;Pereira-Santaella et al 2018;Fluetsch et al 2019).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Testing the blast-wave AGN feedback scenario in MCG-03-58-007

Sirressi

Cicone

Severgnini

et al. 2019

Monthly Notices of the Royal Astronomical Society

Self Cite

View full text Add to dashboard Cite

We report the first Atacama large millimeter/submillimeter array observations of MCG-03-58-007, a local (z = 0.03236±0.00002, this work) AGN (L AG N ∼ 10 45 erg s −1 ), hosting a powerful X-ray ultra-fast (v = 0.1c) outflow (UFO). The CO(1-0) line emission is observed across ∼ 18 kpc scales with a resolution of ∼ 1 kpc. About 78% of the CO(1-0) luminosity traces a galaxy-size rotating disk. However, after subtracting the emission due to such rotating disk, we detect with a S/N=20 a residual emission in the central ∼ 4 kpc. Such residuals may trace a low velocity (v LOS = 170 km s −1 ) outflow. We compare the momentum rate ( P) and kinetic power ( E) of such putative molecular outflow with that of the X-ray UFO and find P mol / P U FO ∼ 0.4 and E mol / E U FO ∼ 4 · 10 −3 . This result is at odds with the energy-conserving scenario suggested by the large momentum boosts measured in some other molecular outflows. An alternative interpretation of the residual CO emission would be a compact rotating structure, distinct from the main disk, which would be a factor of ∼ 10 − 100 more extended and massive than typical circumnuclear disks revealed in Seyferts. In conclusion, in both scenarios, our results rule out the hypothesis of a momentum-boosted molecular outflow in this AGN, despite the presence of a powerful X-ray UFO.

show abstract

Multiphase quasar-driven outflows in PG 1114+445

Serafinelli

Tombesi

Vagnetti

et al. 2019

A&A

View full text Add to dashboard Cite

Substantial evidence in the last few decades suggests that outflows from supermassive black holes (SMBH) may play a significant role in the evolution of galaxies. These outflows, powered by active galactic nuclei (AGN), are thought to be the fundamental mechanism by which the SMBH transfers a significant fraction of its accretion energy to the surrounding environment. Large-scale outflows known as warm absorbers (WA) and fast disk winds known as ultra-fast outflows (UFO) are commonly found in the spectra of many Seyfert galaxies and quasars, and a correlation has been suggested between them. Recent detections of low ionization and low column density outflows, but with a high velocity comparable to UFOs, challenge such initial possible correlations. Observations of UFOs in AGN indicate that their energetics may be enough to have an impact on the interstellar medium (ISM). However, observational evidence of the interaction between the inner high-ionization outflow and the ISM is still missing. We present here the spectral analysis of 12 XMM-Newton/EPIC archival observations of the quasar PG 1114+445, aimed at studying the complex outflowing nature of its absorbers. Our analysis revealed the presence of three absorbing structures. We find a WA with velocity v ∼ 530 km s −1 , ionization log ξ/erg cm s −1 ∼ 0.35, and column density log N H /cm −2 ∼ 22, and a UFO with v out ∼ 0.145c, log ξ/erg cm s −1 ∼ 4, and log N H /cm −2 ∼ 23. We also find an additional absorber in the soft X-rays (E < 2 keV) with velocity comparable to that of the UFO (v out ∼ 0.120c), but ionization (log ξ/erg cm s −1 ∼ 0.5) and column density (log N H /cm −2 ∼ 21.5) comparable with those of the WA. The ionization, velocity, and variability of the three absorbers indicate an origin in a multiphase and multiscale outflow, consistent with entrainment of the clumpy ISM by an inner UFO moving at ∼ 15% the speed of light, producing an entrained ultra-fast outflow (E-UFO).

show abstract

A new powerful and highly variable disc wind in an AGN–star-forming galaxy, the case of MCG-03-58-007

Cited by 35 publications

References 73 publications

A broadband X-ray view of the NLSy1 1E 0754.6+3928

A broadband X-ray view of the NLSy1 1E 0754.6+3928

Testing the blast-wave AGN feedback scenario in MCG-03-58-007

Multiphase quasar-driven outflows in PG 1114+445

Contact Info

Product

Resources

About