output
20182026
most citedUbiquitous cold and massive filaments in cool core clusters

154 citations

Showing astro-ph.GAShow all

14 papers · 1 filter

astro-ph.GA2026★ 1 cited

MICONIC: JWST/MIRI-MRS reveals heavily reprocessed PAH emission in the circum-nuclear disc of Centaurus A

L. Pantoni, M. Baes, L. Decin +23

Polycyclic aromatic hydrocarbons (PAHs) are key dust components in galaxies and play a fundamental role in the physics of the interstellar medium (ISM), yet their response to AGN f…

astro-ph.GA2025★ 5 cited

The Rich JWST Spectrum of the Western Nucleus of Arp 220: Shocked Hot Core Chemistry Dominates the Inner Disk

Victorine Buiten, Paul van der Werf, Serena Viti +20

We present full 3-28 JWST MIRI/MRS and NIRSpec/IFU spectra of the western nucleus of Arp 220, the nearest ultraluminous infrared galaxy. This nucleus has long been su…

astro-ph.GA2024★ 22 cited

MICONIC: Dual active galactic nuclei, star formation, and ionised gas outflows in NGC 6240 seen with MIRI/JWST

L. Hermosa Muñoz, A. Alonso-Herrero, A. Labiano +19

As part of the guaranteed time observations program Mid-Infrared Characterization Of Nearby Iconic galaxy Centers (MICONIC), we used the medium-resolution spectrometer (MRS) of the…

astro-ph.GA2023★ 41 cited

Shock excitation of H in the James Webb Space Telescope era

L. E. Kristensen, B. Godard, P. Guillard +2

(Abridged) H2 is the most abundant molecule in the Universe. Thanks to its widely spaced energy levels, it predominantly lights up in warm gas, T > 100 K, such as shocked regions,…

astro-ph.GA2023★ 29 cited

A cosmic stream of atomic carbon gas connected to a massive radio galaxy at redshift 3.8

Bjorn H. C. Emonts, Matthew D. Lehnert, Ilsang Yoon +7

The growth of galaxies in the early Universe is driven by accretion of circum- and inter-galactic gas. Simulations predict that steady streams of cold gas penetrate the dark matter…

astro-ph.GA2023★ 29 cited

Multi-phase gas interactions on subarcsec scales in the shocked IGM of Stephan's Quintet with JWST and ALMA

P. N. Appleton, P. Guillard, B. Emonts +12

We combine JWST and HST imaging with ALMA~CO(2-1) spectroscopy to study the highly turbulent multi-phase intergalactic medium (IGM) in Stephan's Quintet on 25-150 pc scales. Previo…

astro-ph.GA2022★ 28 cited

Nuclear high-ionisation outflow in the Compton-thick AGN NGC6552 as seen by the JWST mid-infrared instrument

J. Álvarez-Márquez, A. Labiano, P. Guillard +17

During the commissioning of the James Webb Space Telescope (JWST), the mid-infrared instrument (MIRI) observed NGC6552 with the MIRI Imager and the medium-resolution spectrograph (…

astro-ph.GA2022★ 22 cited

Cosmic rays and thermal instability in self-regulating cooling flows of massive galaxy clusters

Ricarda S. Beckmann, Yohan Dubois, Alisson Pellissier +5

One of the key physical processes that helps prevent strong cooling flows in galaxy clusters is the continued energy input from the central active galactic nucleus (AGN) of the clu…

astro-ph.GA2022★ 88 cited

PDRs4All: A JWST Early Release Science Program on radiative feedback from massive stars

Olivier Berné, Émilie Habart, Els Peeters +134

Massive stars disrupt their natal molecular cloud material through radiative and mechanical feedback processes. These processes have profound effects on the evolution of interstell…

astro-ph.GA2021★ 10 cited

Extremely broad Lyman-alpha line emission from the molecular intra-group medium in Stephan's Quintet: evidence for a turbulent cascade in a highly clumpy multi-phase medium?

P. Guillard, P. N Appleton, F. Boulanger +8

We present Hubble Space Telescope Cosmic Origin Spectrograph (COS) UV line spectroscopy and integral-field unit (IFU) observations of the intra-group medium in Stephan's Quintet (S…

astro-ph.GA2019★ 154 cited

Ubiquitous cold and massive filaments in cool core clusters

V. Olivares, P. Salomé, F. Combes +20

Multi-phase filamentary structures around Brightest Cluster Galaxies are likely a key step of AGN-feedback. We observed molecular gas in 3 cool cluster cores: Centaurus, Abell S110…

astro-ph.GA2019★ 11 cited

G.A.S. I: A prescription for turbulence-regulated star formation and its impact on galaxy properties

M. Cousin, P. Guillard, M. D. Lehnert

Star formation in galaxies is inefficient, and understanding how star formation is regulated in galaxies is one of the most fundamental challenges of contemporary astrophysics. Rad…

astro-ph.GA2018★ 13 cited

Evidence for shock-heated gas in the Taffy Galaxies and Bridge from Optical Emission-Line IFU spectroscopy

Bhavin A. Joshi, Philip N. Appleton, Guillermo A. Blanc +7

We present optical IFU observations of the Taffy system (UGC 12914/15); named for the radio emission that stretches between the two galaxies. Given that these gas rich galaxies are…

astro-ph.GA2018★ 22 cited

Jet-related Excitation of the [CII] Emission in the Active Galaxy NGC 4258 with SOFIA

Philip Appleton, Tanio Diaz-Santos, Dario Fadda +7

We detect widespread [CII]157.7um emission from the inner 5 kpc of the active galaxy NGC 4258 with the SOFIA integral field spectrometer FIFI-LS. The emission is found associated w…