Search Publications
New predictions for radiation-driven, steady-state mass-loss and wind-momentum from hot, massive stars. III. Updated mass-loss rates for stellar evolution
Puls, J.; Najarro, F.; Sundqvist, J. O. +2 more
Context. Massive stars lose a large fraction of their mass to radiation-driven winds throughout their entire life. These outflows impact both the life and death of these stars and their surroundings.
Aims: Theoretical mass-loss rates of hot, massive stars are derived to be used in applications such as stellar evolution. The behaviour of these…
Gas phase Elemental abundances in Molecular cloudS (GEMS). VII. Sulfur elemental abundance
Bachiller, R.; Gerin, M.; Goicoechea, J. R. +18 more
Context. Gas phase Elemental abundances in molecular CloudS (GEMS) is an IRAM 30-m Large Program aimed at determining the elemental abundances of carbon (C), oxygen (O), nitrogen (N), and sulfur (S) in a selected set of prototypical star-forming filaments. In particular, the elemental abundance of S remains uncertain by several orders of magnitude…
The hidden side of cosmic star formation at z > 3. Bridging optically dark and Lyman-break galaxies with GOODS-ALMA
Magnelli, B.; Daddi, E.; Elbaz, D. +37 more
Our current understanding of the cosmic star formation history at z > 3 is primarily based on UV-selected galaxies (Lyman-break galaxies, i.e., LBGs). Recent studies of H-dropouts (HST-dark galaxies) have revealed that we may be missing a large proportion of star formation that is taking place in massive galaxies at z > 3. In this work, we e…
ALMA-IMF. VI. Investigating the origin of stellar masses: Core mass function evolution in the W43-MM2&MM3 mini-starburst
Galván-Madrid, R.; Cunningham, N.; Schneider, N. +35 more
Context. Among the most central open questions regarding the initial mass function (IMF) of stars is the impact of environment on the shape of the core mass function (CMF) and thus potentially on the IMF.
Aims: The ALMA-IMF Large Program aims to investigate the variations in the core distributions (CMF and mass segregation) with cloud charact…
A sensitive APEX and ALMA CO(1-0), CO(2-1), CO(3-2), and [CI](1-0) spectral survey of 40 local (ultra-)luminous infrared galaxies
Weiss, A.; Aravena, M.; Severgnini, P. +8 more
We present a high sensitivity, ground-based spectral line survey of low-J carbon monoxide (CO(Jup → Jup − 1) with Jup = 1, 2, 3) and neutral carbon [CI] 3P1−3P0 ([CI](1-0)) in 36 local ultra-luminous infrared galaxies (ULIRGs) and 4 additional LIRGs, all of which have pre…
CONCERTO: Simulating the CO, [CII], and [CI] line emission of galaxies in a 117 deg2 field and the impact of field-to-field variance
Hu, W.; Catalano, A.; Lagache, G. +29 more
In the submillimeter regime, spectral line scans and line intensity mapping (LIM) are new promising probes for the cold gas content and star formation rate of galaxies across cosmic time. However, both of these two measurements suffer from field-to-field variance. We study the effect of field-to-field variance on the predicted CO and [CII] power s…
SRG/eROSITA X-ray shadowing study of giant molecular clouds
Ponti, G.; Freyberg, M. J.; Sasaki, M. +3 more
Context. SRG/eROSITA is situated in a halo orbit around L2 where the highly variable solar wind charge exchange (SWCX) emission from Earth's magnetosheath is expected to be negligible. The soft X-ray foreground emissions from the local hot bubble (LHB) and the remaining heliospheric SWCX emissions could be studied in unprecedented detail with eROS…
Optical and mid-infrared line emission in nearby Seyfert galaxies
Pozzi, F.; Feltre, A.; Marchetti, L. +24 more
Line ratio diagnostics provide valuable clues as to the source of ionizing radiation in galaxies with intense black hole accretion and starbursting events, such as local Seyfert galaxies or galaxies at the peak of their star formation history. We aim to provide a reference joint optical and mid-IR line ratio analysis for studying active galactic n…
High-angular-resolution NIR view of the Orion Bar revealed by Keck/NIRC2
Le Gal, Romane; Bron, Emeric; Wolfire, Mark G. +7 more
Context. Nearby photo-dissociation regions (PDRs), where the gas and dust are heated by the far-ultraviolet (FUV) irradiation emitted from stars, are ideal templates with which to study the main stellar feedback processes.
Aims: With this study, we aim to probe the detailed structures at the interfaces between ionized, atomic, and molecular g…
Mother of dragons. A massive, quiescent core in the dragon cloud (IRDC G028.37+00.07)
Bigiel, F.; Parker, R. J.; Longmore, S. N. +15 more
Context. Core accretion models of massive star formation require the existence of massive, starless cores within molecular clouds. Yet, only a small number of candidates for such truly massive, monolithic cores are currently known.
Aims: Here we analyse a massive core in the well-studied infrared-dark cloud (IRDC) called the `dragon cloud' (a…