Search Publications
Physics of ULIRGs with MUSE and ALMA: The PUMA project. IV. No tight relation between cold molecular outflow rates and AGN luminosities
Rigopoulou, D.; Colina, L.; van der Werf, P. +11 more
We study molecular outflows in a sample of 25 nearby (z < 0.17, d < 750 Mpc) ultra-luminous infrared galaxy (ULIRG) systems (38 individual nuclei) as part of the Physics of ULIRGs with MUSE and ALMA (PUMA) survey, using ∼400 pc (0.1-1.0″ beam FWHM) resolution ALMA CO(2-1) observations. We used a spectro-astrometry analysis to identify high-v…
Spectroscopic evolution of very massive stars at Z = 1/2.5 Z⊙
Martins, F.; Palacios, A.
Context. Stars with masses in excess of 100 M⊙ are observed in the Local Universe, but they remain rare objects. Because of the shape of the mass function, they are expected to be present only in the most massive and youngest clusters. They may thus be formed in number in highly star-forming galaxies.
Aims: Very massive stars (VMSs…
Observation-based modelling of the energetic storm particle event of 14 July 2012
Lario, D.; Vainio, R.; Poedts, S. +6 more
Aims: We model the energetic storm particle (ESP) event of 14 July 2012 using the energetic particle acceleration and transport model named `PArticle Radiation Asset Directed at Interplanetary Space Exploration' (PARADISE), together with the solar wind and coronal mass ejection (CME) model named `EUropean Heliospheric FORcasting Information A…
The chemical signature of the Galactic spiral arms revealed by Gaia DR3
Schultheis, M.; Recio-Blanco, A.; de Laverny, P. +8 more
Taking advantage of the recent Gaia Data Release 3 (DR3), we mapped chemical inhomogeneities in the Milky Way's disc out to a distance of ∼4 kpc from the Sun, using different samples of bright giant stars. The samples were selected using effective temperatures and surface gravities from the GSP-Spec module, and they are expected to trace stellar p…
Gas condensation in brightest group galaxies unveiled with MUSE. Morphology and kinematics of the ionized gas
Godard, B.; Gaspari, M.; Babul, A. +18 more
The origin of the cold gas in central galaxies in groups is still a matter of debate. We present Multi-Unit Spectroscopic Explorer (MUSE) observations of 18 optically selected local (z ≤ 0.017) brightest group galaxies (BGGs) to study the kinematics and distribution of the optical emission-line gas. MUSE observations reveal a distribution of gas m…
The galaxy group NGC 507: Newly detected AGN remnant plasma transported by sloshing
Simionescu, A.; Brunetti, G.; Gastaldello, F. +15 more
Jets from active galactic nuclei (AGN) are known to recurrently enrich their surrounding medium with mildly relativistic particles and magnetic fields. Here, we present a detailed multi-frequency analysis of the nearby (z = 0.01646) galaxy group NGC 507. In particular, we present new high-sensitivity and high-spatial-resolution radio images in the…
ATOMIUM: ALMA tracing the origins of molecules in dust forming oxygen rich M-type stars. Motivation, sample, calibration, and initial results
Waters, L. B. F. M.; Menten, K. M.; Sahai, R. +33 more
This overview paper presents ATOMIUM, a Large Programme in Cycle 6 with the Atacama Large Millimeter/submillimeter Array (ALMA). The goal of ATOMIUM is to understand the dynamics and the gas phase and dust formation chemistry in the winds of evolved asymptotic giant branch (AGB) and red supergiant (RSG) stars. A more general aim is to identify che…
The MUSE Extremely Deep Field: Evidence for SFR-induced cores in dark-matter dominated galaxies at z ≃ 1
Bacon, Roland; Brinchmann, Jarle; Contini, Thierry +14 more
Context. Disc-halo decompositions z = 1 − 2 star-forming galaxies (SFGs) at z > 1 are often limited to massive galaxies (M⋆ > 1010 M⊙) and rely on either deep integral field spectroscopy data or stacking analyses.
Aims: We present a study of the dark-matter (DM) content of nine z ≈ 1 SFGs selected among …
The MUSE eXtremely Deep Field: Individual detections of Lyα haloes around rest-frame UV-selected galaxies at z ≃ 2.9-4.4
Bacon, Roland; Tresse, Laurence; Blaizot, Jérémy +15 more
Hydrogen Lyα haloes (LAHs) are commonly used as a tracer of the circumgalactic medium (CGM) at high redshifts. In this work, we aim to explore the existence of Lyα haloes around individual UV-selected galaxies, rather than around Lyα emitters (LAEs), at high redshifts. Our sample was continuum-selected with F775W ≤ 27.5, and spectroscopic redshift…
Dust depletion of metals from local to distant galaxies. I. Peculiar nucleosynthesis effects and grain growth in the ISM
Noterdaeme, Pasquier; Heintz, Kasper E.; Jermann, Iris +8 more
Large fractions of metals are missing from the observable gas-phase in the interstellar medium (ISM) because they are incorporated into dust grains. This phenomenon is called dust depletion. It is important to study the depletion of metals into dust grains in the ISM to investigate the origin and evolution of metals and cosmic dust. We characteriz…