Deep Chandra Observations of NGC 5728: Morphology and Spectral Properties of the Extended X-Ray Emission

Falcão, Anna Trindade; Fabbiano, G.; Elvis, M.; Paggi, A.; Maksym, W. Peter

doi:10.3847/1538-4357/acd052

Cited by 6 publications

(1 citation statement)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For both lowand high-luminosity AGN feedback, the low X-ray surface brightness of this interaction zone means that CXO (the only current mission with the spatial resolution to disambiguate this emission from the bright AGN core) can only obtain a crude spectral characterization of the processes at play in the nearest systems. [32][33][34] With the combination of high-spatial resolution, throughput, low background, and improved spectral resolution, AXIS will allow high-quality imaging spectroscopy of this region in nearby luminous AGN, allowing the complex physics of the AGN-ISM interaction to be disentangled.…”

Section: Cosmic Ecosystems: Feedback In Galaxies Across All Mass Scalesmentioning

confidence: 99%

Overview of the advanced x-ray imaging satellite (AXIS)

Reynolds,

Kara,

Mushotzky

et al. 2023

UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII

View full text Add to dashboard Cite

The Advanced X-ray Imaging Satellite (AXIS) is a Probe-class concept that will build on the legacy of the Chandra x-ray Observatory by providing low-background, arcsecond-resolution in the 0.3-10 keV band across a 450 arcminute2 field of view, with an order of magnitude improvement in sensitivity. AXIS utilizes breakthroughs in the construction of lightweight segmented x-ray optics using single-crystal silicon, and developments in the fabrication of large-format, small-pixel, high readout rate CCD detectors with good spectral resolution, allowing a robust and cost-effective design. Further, AXIS will be responsive to target-of-opportunity alerts and, with onboard transient detection, will be a powerful facility for studying the time-varying x-ray universe, following on from the legacy of the Neil Gehrels (Swift) x-ray observatory that revolutionized studies of the transient x-ray Universe. In this paper, we present an overview of AXIS, highlighting the prime science objectives driving the AXIS concept and how the observatory design will achieve these objectives.

show abstract

Section: Cosmic Ecosystems: Feedback In Galaxies Across All Mass Scalesmentioning

confidence: 99%

Overview of the advanced x-ray imaging satellite (AXIS)

Reynolds,

Kara,

Mushotzky

et al. 2023

UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII

View full text Add to dashboard Cite

show abstract

GATOS: missing molecular gas in the outflow of NGC 5728 revealed by JWST

Davies,

Shimizu,

Pereira-Santaella

et al. 2024

A&A

View full text Add to dashboard Cite

The ionisation cones of NGC\,5728 have a deficit of molecular gas based on millimetre observations of CO\,(2-1) emission. Although photoionisation from the active nucleus may lead to suppression of this transition, warm molecular gas can still be present. We report the detection of eight mid-infrared rotational H$_2$ lines throughout the central kiloparsec, including the ionisation cones, using integral field spectroscopic observations with JWST/MIRI MRS. The H$_2$ line ratios, characteristic of a power-law temperature distribution, indicate that the gas is warmest where it enters the ionisation cone through disk rotation, suggestive of shock excitation. In the nucleus, where the data can be combined with an additional seven ro-vibrational H$_2$ transitions, we find that moderate velocity (30 km $) shocks in dense ($10^5$ cm$^ $) gas, irradiated by an external UV field ($G_0 = 10^3$), do provide a good match to the full set. The warm molecular gas in the ionisation cone that is traced by the H$_2$ rotational lines has been heated to temperatures $>200$ K. Outside of the ionisation cone the molecular gas kinematics are undisturbed. However, within the ionisation cone, the kinematics are substantially perturbed, indicative of a radial flow, but one that is quantitatively different from the ionised lines. We argue that this outflow is in the plane of the disk, implying a short 50 pc acceleration zone up to speeds of about 400 km s$^ $ followed by an extended deceleration over sim 700 pc where it terminates. The deceleration is due to both the radially increasing galaxy mass, and mass-loading as ambient gas in the disk is swept up.

show abstract

X-ray detection of the most extreme star-forming galaxies at the cosmic noon via strong lensing

Wang,

Diaz,

Kamieneski

et al. 2023

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

Hyper-luminous infrared galaxies (HyLIRGs) are the most extreme star-forming systems observed in the early Universe, and their properties still elude comprehensive understanding. We have undertaken a large XMM-Newton observing program to probe the total accreting black hole population in three HyLIRGs at z = 2.12, 3.25, and 3.55, gravitationally lensed by foreground galaxies. Selected from the Planck All-Sky Survey to Analyze Gravitationally-lensed Extreme Starbursts (PASSAGES), these HyLIRGs have apparent infrared luminosities >1014 L⊙. Our observations revealed X-ray emission in each of them. PJ1336+49 appears to be dominated by high-mass X-ray binaries (HMXBs). Remarkably, the luminosity of this non-AGN X-ray emission exceeds by a factor of about three the value obtained by calibration with local galaxies with much lower star formation rates. This enhanced X-ray emission most likely highlights the efficacy of dynamical HMXB production within compact clusters, which is an important mode of star formation in HyLIRGs. The remaining two (PJ0116-24 and PJ1053+60) morphologically and spectrally exhibit a compact X-ray component in addition to the extended non-AGN X-ray emission, indicating the presence of Active Galactic Nuclei (AGNs). The AGN appears to be centrally located in the reconstructed source plane images of PJ0116-24, which manifests its star-forming activity predominantly within an extended galactic disk. In contrast, the AGN in the field of PJ1053+60 is projected 60 kpc away from the extreme star-forming galaxy and could be ejected from it. These results underline the synergistic potential of deep X-ray observations with strong lensing for the study of high-energy astrophysical phenomena in HyLIRGs.

show abstract

Deep Chandra Observations of NGC 5728: Morphology and Spectral Properties of the Extended X-Ray Emission

Cited by 6 publications

References 56 publications

Overview of the advanced x-ray imaging satellite (AXIS)

Overview of the advanced x-ray imaging satellite (AXIS)

GATOS: missing molecular gas in the outflow of NGC 5728 revealed by JWST

X-ray detection of the most extreme star-forming galaxies at the cosmic noon via strong lensing

Contact Info

Product

Resources

About