A Spatially Resolved Survey of Distant Quasar Host Galaxies. II. Photoionization and Kinematics of the ISM

Vayner, Andrey; Wright, Shelley A.; Murray, Norman; Armus, L.; Boehle, Anna; Cosens, Maren; Larkin, James E.; Mieda, Etsuko; Walth, Gregory

doi:10.3847/1538-4357/abddc1

Cited by 10 publications

(23 citation statements)

References 171 publications

(314 reference statements)

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“…The total luminosity inferred from Hα might be taken as a lower limit because of dust extinction effects, possibly leading to an underestimate of the SFR. In sources with the highest S/N spectra (3C446, 3C298, 4C22.44, and 4C04.81) covering both Hα and Hβ, we find a maximum Vband extinction of 1 magnitude (Vayner et al 2021). We can only compute a spatially integrated extinction measurement as the surface brightness sensitivity at the redshifted location of Hβ is lower compared to Hα due to degradation in the AO performance at the shorter wavelength.…”

Section: Possible Driving Source Of Outflowsmentioning

confidence: 91%

“…All quoted luminosity values are reported in Table 3. Star formation rates derived from Hα (Vayner et al 2021) and, when available, from total infrared emission (Podigachoski et al 2015;Barthel et al 2017) are presented in Table 3.…”

Section: Quasar Sample Propertiesmentioning

confidence: 99%

“…This paper will focus on searching for distinct regions that are part of an outflow. Paper II (Vayner et al 2021) focuses on distinct regions that are "dynamically quiescent. "…”

Section: Spatially Resolved Regionsmentioning

confidence: 99%

“…A second way to compute the stellar bolometric luminosity is to convert the Hα flux to an SFR. We derive the SFRs from distinct regions in Paper II (Vayner et al 2021) using the empirical Hα-SFR relation from Kennicutt (1998). We can then convert this SFR to a total infrared luminosity following Kennicutt (1998).…”

Section: Possible Driving Source Of Outflowsmentioning

confidence: 99%

“…The outflow propagates along the minor axis of the rotation disk, similar to star-formation-driven outflow in M82. Furthermore, the wind in 3C9 is emanating from the location where star formation has recently occurred based on nebular emission line ratios and the presence of extended UV emission in a galactic ring (Vayner et al 2021). For 3C9, if we assume the outflow originates in the galaxy's star-forming region, it would be more appropriate to measure the outflow radius starting from the edge of the turbulent region rather than from the quasar since the outflow itself does not extend down to the quasar.…”

Section: Summary Of Outflows Within Our Samplementioning

confidence: 99%

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A Spatially Resolved Survey of Distant Quasar Host Galaxies. I. Dynamics of Galactic Outflows

Vayner

Wright

Murray

et al. 2021

ApJ

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We present observations of ionized gas outflows in 11 z = 1.39-2.59 radio-loud quasar host galaxies. Data were taken with the integral field spectrograph OSIRIS and the adaptive optics system at the W.M. Keck Observatory targeting nebular emission lines (Hβ, [O III], Hα, [N II], and [S II]) redshifted into the near-infrared (1-2.4 μm).Outflows with velocities of 500-1700 km s −1 are detected in 10 systems on scales ranging from <1 kpc to 10 kpc with outflow rates from 8-2400 M e yr −1 . For five sources, the outflow momentum rates are 4-80 times L AGN /c, consistent with outflows being driven by an energy-conserving shock. The five other outflows are either driven by radiation pressure or an isothermal shock. The outflows are the dominant source of gas depletion, and we find no evidence for star formation along the outflow paths. For eight objects, the outflow paths are consistent with the orientation of the jets. Yet, given the calculated pressures, we find no evidence of the jets currently doing work on these galactic-scale ionized outflows. We find that galactic-scale feedback occurs well before galaxies establish a substantial fraction of their stellar mass, as expected from local scaling relationships.Unified Astronomy Thesaurus concepts: AGN host galaxies (2017); Galaxy evolution (594); Quasars (1319); Radio loud quasars (1349); Supermassive black holes (1663); Emission line galaxies (459)

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Section: Possible Driving Source Of Outflowsmentioning

confidence: 91%

Section: Quasar Sample Propertiesmentioning

confidence: 99%

“…This paper will focus on searching for distinct regions that are part of an outflow. Paper II (Vayner et al 2021) focuses on distinct regions that are "dynamically quiescent. "…”

Section: Spatially Resolved Regionsmentioning

confidence: 99%

Section: Possible Driving Source Of Outflowsmentioning

confidence: 99%

Section: Summary Of Outflows Within Our Samplementioning

confidence: 99%

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A Spatially Resolved Survey of Distant Quasar Host Galaxies. I. Dynamics of Galactic Outflows

Vayner

Wright

Murray

et al. 2021

ApJ

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Diagnosing the interstellar medium of galaxies with far-infrared emission lines

Ramos Padilla,

Wang,

van der Tak

et al. 2023

A&A

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Context. Gas cooling processes in the interstellar medium (ISM) are key to understanding how star formation occurs in galaxies. Far-infrared (FIR) fine-structure emission lines can be used to infer gas conditions and trace different phases of the ISM. Aims. We model eight of the most important FIR emission lines and explore their variation with star formation rate (SFR) out to z = 6 using cosmological hydrodynamical simulations. In addition, we study how different physical parameters, such as the interstellar radiation field (ISRF) and metallicity, impact the FIR lines and line ratios. Methods. We implemented a physically motivated multi-phase model of the ISM by post-processing the EAGLE cosmological simulation and using CLOUDY look-up tables for line emissivities. In this model we included four phases of the ISM: dense molecular gas, neutral atomic gas, diffuse ionised gas (DIG), and H II regions. Results. Our model shows reasonable agreement (to ∼0.5 dex) with the observed line luminosity–SFR relations up to z = 6 in the FIR lines analysed. For ease of comparison, we also provide linear fits to our model results. Our predictions also agree reasonably well with observations in diagnostic diagrams involving various FIR line ratios. Conclusions. We find that [C II] is the best SFR tracer of the FIR lines even though it arises from multiple ISM phases, while [O III] and [N II] can be used to understand the DIG–H II balance in the ionised gas. In addition, line ratios such as [C II]/[O III] and [N II]/[O I] are useful for deriving parameters such as ISRF, metallicity, and specific SFR. These results can help interpret the observations of the FIR lines from the local Universe to high redshifts.

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Powerful winds in high-redshift obscured and red quasars

Vayner

Zakamska

Riffel

et al. 2021

Monthly Notices of the Royal Astronomical Society

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Quasar-driven outflows must have made their most significant impact on galaxy formation during the epoch when massive galaxies were forming most rapidly. To study the impact of quasar feedback, we conducted rest-frame optical integral field spectrograph (IFS) observations of three extremely red quasars (ERQs) and one type-2 quasar at z = 2–3, obtained with the NIFS and OSIRIS instruments at the Gemini North and W. M. Keck Observatory with the assistance of laser-guided adaptive optics. We use the kinematics and morphologies of the [O iii] 5007 Å and H α 6563 Å emission lines redshifted into the near-infrared to gauge the extents, kinetic energies and momentum fluxes of the ionized outflows in the quasars host galaxies. For the ERQs, the galactic-scale outflows are likely driven by radiation pressure in a high column density environment or due to an adiabatic shock. The outflows in the ERQs carry a significant amount of energy ranging from 0.05 to 5 ${{\ \rm per\ cent}}$ of the quasar’s bolometric luminosity, powerful enough to have a significant impact on the quasar host galaxies. The outflows are resolved on kpc scales, the observed outflow sizes are generally smaller than other ionized outflows observed at high redshift. The high ratio between the momentum flux of the ionized outflow and the photon momentum flux from the quasar accretion disc and high nuclear obscuration makes these ERQs great candidates for transitional objects where the outflows are likely responsible for clearing material in the inner regions of each galaxy, unveiling the quasar accretion disc at optical wavelengths.

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A Spatially Resolved Survey of Distant Quasar Host Galaxies. II. Photoionization and Kinematics of the ISM

Cited by 10 publications

References 171 publications

A Spatially Resolved Survey of Distant Quasar Host Galaxies. I. Dynamics of Galactic Outflows

A Spatially Resolved Survey of Distant Quasar Host Galaxies. I. Dynamics of Galactic Outflows

Diagnosing the interstellar medium of galaxies with far-infrared emission lines

Powerful winds in high-redshift obscured and red quasars

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