598 citations · 8.2k across the 149 of their papers we have counts for
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The impact of hot mode accretion and angular momentum conservation on metallicity gradients of galactic discs
Jennifer K. S. Friske, Filippo Fraternali, Gabriele Pezzulli
The hot circumgalactic medium (CGM) of a galaxy inevitably rotates more slowly than the cold gas in the disc it surrounds, due to a higher pressure support against gravity. If it a…
Temperature asymmetry in the Milky Way's hot circumgalactic medium induced by the Magellanic Clouds
Alexandru Oprea, Filippo Fraternali, Else Starkenburg +2
The Milky Way is surrounded by a hot diffuse circumgalactic medium (CGM) with temperatures of millions of degrees. Recent X-ray observations with the eROSITA satellite discovered a…
Fast rotations in galaxies at cosmic noon indicate central concentration of stars, dark matter or massive black holes
Fernanda Roman-Oliveira, Francesca Rizzo, Filippo Fraternali
The rotation curves of regularly rotating disc galaxies are a unique probe of the gravitational potential and dark matter distribution. Until recently, matter decomposition of rota…
The inside-out quenching of the MHONGOOSE galaxy NGC 1371
S. Veronese, W. J. G. de Blok, F. Fraternali +5
We present the deepest 21-cm spectral line and 1.4 GHz broad-band continuum observations of nearby early-type spiral galaxy NGC 1371 as part of the MeerKAT HI Observations of Nearb…
Gas-rich dwarf galaxy multiples in the Apertif HI survey
B. Šiljeg, E. A. K. Adams, F. Fraternali +8
Dwarf-dwarf galaxy encounters are a key aspect of galaxy evolution as they can ignite or temporarily suppress star formation in dwarfs and can lead to dwarf mergers. However, the f…
ALMA survey of a massive node of the Cosmic Web at . II. A dynamically cold and massive disk galaxy in the proximity of a hyperluminous quasar
A. Pensabene, S. Cantalupo, W. Wang +11
Advancing our understanding of the formation and evolution of early massive galaxies and black holes requires detailed studies of dense structures in the high-redshift Universe. In…
HI within and around observed and simulated galaxy discs -- Comparing MeerKAT observations with mock data from TNG50 and FIRE-2
A. Marasco, W. J. G. de Blok, F. M. Maccagni +12
Atomic hydrogen (HI) is an ideal tracer of gas flows in and around galaxies, and it is uniquely observable in the nearby Universe. Here we make use of wide-field (~1 square degree)…
The long life of ultra diffuse galaxies inside low-density dark matter halos: the case of AGC 114905
Andrea Afruni, Federico Marinacci, Pavel E. Mancera Piña +1
It has long been known that, in the absence of a dark matter (DM) halo, galaxy discs tend to develop global gravitational instabilities that strongly modify their initial structure…
JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium
Jérémy Chastenet, Ilse De Looze, Monica Relaño +37
We present new JWST observations of the nearby, prototypical edge-on, spiral galaxy NGC 891. The northern half of the disk was observed with NIRCam in its F150W and F277W filters.…
The ALMA-ALPAKA survey II. Evolution of turbulence in galaxy disks across cosmic time: difference between cold and warm gas
F. Rizzo, C. Bacchini, M. Kohandel +8
The gas in the interstellar medium (ISM) of galaxies is supersonically turbulent. Measurements of turbulence typically rely on cold gas emission lines for low-z galaxies and warm i…
MHONGOOSE -- A MeerKAT Nearby Galaxy HI Survey
W. J. G. de Blok, J. Healy, F. M. Maccagni +57
The MHONGOOSE (MeerKAT HI Observations of Nearby Galactic Objects: Observing Southern Emitters) survey maps the distribution and kinematics of the neutral atomic hydrogen (HI) gas…
Dynamical modelling and origin of gas turbulence in z 4.5 galaxies
Fernanda Roman-Oliveira, Francesca Rizzo, Filippo Fraternali
In recent years, a growing number of regularly rotating galaxy discs have been found at z 4. Such systems provide us with the unique opportunity to study the properties of d…
The density of the Milky Way's corona at through ram pressure stripping of the Draco dSph galaxy
Asger Grønnow, Filippo Fraternali, Federico Marinacci +4
Satellite galaxies within the Milky Way's (MW) virial radius are typically devoid of cold gas due to ram pressure stripping by the MW's corona. The density of th…
Clouds accreting from the IGM are not able to feed the star formation of low-redshift disc galaxies
Andrea Afruni, Gabriele Pezzulli, Filippo Fraternali +1
Galactic halos accrete material from the intergalactic medium (IGM) and part of this accretion is expected to be in the form of cool ( K) gas. A signature of this proces…
The ALMA-ALPAKA survey I: high-resolution CO and [CI] kinematics of star-forming galaxies at z = 0.5-3.5
F. Rizzo, F. Roman-Oliveira, F. Fraternali +13
Spatially-resolved studies of the kinematics of galaxies provide crucial insights into their assembly and evolution, enabling to infer the properties of the dark matter halos, deri…
Regular rotation and low turbulence in a diverse sample of z ~ 4.5 galaxies observed with ALMA
Fernanda Roman-Oliveira, Filippo Fraternali, Francesca Rizzo
The discovery of galaxies with regularly rotating discs at redshifts has been a puzzling challenge to galaxy formation models that tend to predict chaotic gas kinematics in…
X-Ray Detection of the Galaxy's Missing Baryons in the Circum-Galactic Medium of L Galaxies
Fabrizio Nicastro, Yair Krongold, Taotao Fang +10
The amount of baryons hosted in the disks of galaxies is lower than expected based on the mass of their dark-matter halos and the fraction of baryon-to-total matter in the universe…
Fountain-driven gas accretion feeding star formation over the disc of NGC 2403
Anqi Li, Filippo Fraternali, Antonino Marasco +4
We use a dynamical model of galactic fountain to study the neutral extraplanar gas (EPG) in the nearby spiral galaxy NGC 2403. We have modelled the EPG as a combination of material…
Evidence for supernova feedback sustaining gas turbulence in nearby star-forming galaxies
C. Bacchini, F. Fraternali, G. Pezzulli +3
HI and CO observations indicate that the cold gas in galaxies is very turbulent. However, the turbulent energy is expected to be quickly dissipated, implying that some energy sourc…
The volumetric star formation law in nearby galaxies
C. Bacchini, F. Fraternali, G. Pezzulli +3
Star formation laws are empirical relations between the cold gas (HI+H) content of a galaxy and its star formation rate (SFR), being crucial for any model of galaxy formation a…
The impact of gas disc flaring on rotation curve decomposition and revisiting baryonic and dark-matter relations for nearby galaxies
Pavel E. Mancera Piña, Filippo Fraternali, Tom Oosterloo +4
Gas discs of late-type galaxies are flared, with scale heights increasing with the distance from the galaxy centres and often reaching kpc scales. We study the effects of gas disc…
The Odd Dark Matter Halos of Isolated Gas-rich Ultradiffuse Galaxies
Demao Kong, Manoj Kaplinghat, Hai-Bo Yu +2
We analyze circular velocity profiles of seven ultradiffuse galaxies (UDGs) that are isolated and gas-rich. Assuming that the dark matter halos of these UDGs have a Navarro-Frenk-W…
Intermediate- and high-velocity clouds in the Milky Way II: evidence for a Galactic fountain with collimated outflows and diffuse inflows
A. Marasco, F. Fraternali, N. Lehner +1
We model the kinematics of the high- and intermediate- velocity clouds (HVCs and IVCs) observed in absorption towards a sample of 55 Galactic halo stars with accurate distance meas…
Intermediate- and high-velocity clouds in the Milky Way I: covering factors and vertical heights
N. Lehner, J. C. Howk, A. Marasco +1
Intermediate- and high-velocity clouds (IVCs, HVCs) are a potential source of fuel for star formation in the Milky Way (MW), but their origins and fates depend sensitively on their…