11 papers
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. Å iljeg, 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)…