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Molecular Cloud Evolution VI. Measuring cloud ages
(2018-09-21)
In previous contributions, we have presented an analytical model describing the evolution and star formation rate (SFR) of molecular clouds (MCs) undergoing hierarchical gravitational contraction. The cloud’s evolution is ...
GAMA/H-ATLAS: The Local Dust Mass Function and Cosmic Density as a Function of Galaxy Type - A Benchmark for Models of Galaxy Evolution
(2018-09-01)
We present the dust mass function (DMF) of 15 750 galaxies with redshift z <0.1, drawn from the overlapping area of the GAMA and H-ATLAS surveys. The DMF is derived using the density corrected V max method, wherewe estimate ...
The origin of kinematically distinct cores and misaligned gas discs in galaxies from cosmological simulations
(2018-09-01)
Integral field spectroscopy surveys provide spatially resolved gas and stellar kinematics of galaxies. They have unveiled a range of atypical kinematic phenomena, which require detailed modelling to understand. We present ...
A catalogue of faint local radio AGN and the properties of their host galaxies
(2018-09-01)
We present a catalogue of 2210 local ( z < 0.1) galaxies that contain faint active galactic nuclei (AGN). We select these objects by identifying galaxies that exhibit a significant excess in their radio luminosities, ...
An Automated tool to detect variable sources in the Vista Variables in the Vía Láctea Survey. The VVV Variables (V^4) catalog of tiles d001 and d002
(2018-08-24)
Time-varying phenomena are one of the most substantial sources of astrophysical information, and their study has led to many fundamental discoveries in modern astronomy. We have developed an automated tool to search for ...
Violent quenching : Molecular Gas Blown to 1000 km s -1 during a Major Merger
(2018-08-23)
We present Atacama Large Millimeter/submillimeter Array observations of a massive () compact ( pc) merger remnant at z = 0.66 that is driving a 1000 km s -1 outflow of cool gas, with no observational trace of an active ...
Uncertainties in s-process nucleosynthesis in low-mass stars determined from Monte Carlo variations
(2018-08-21)
The main s-process taking place in low-mass stars produces about half of the elements heavier than iron. It is therefore very important to determine the importance and impact of nuclear physics uncertainties on this process. ...
The feedback of an HC H II region on its parental molecular core : The case of core A1 in the star-forming region G24.78+0.08
(2018-08-01)
Context. G24.78+0.08 is a well known high-mass star-forming region, where several molecular cores harboring OB young stellar objects are found inside a clump of size 1 pc. This article focuses on the most prominent of these ...
Concurrent formation of supermassive stars and globular clusters : implications for early self-enrichment
(2018-08-01)
We present a model for the concurrent formation of globular clusters (GCs) and supermassive stars (SMSs, ≳10 3M ⊙) to address the origin of the HeCNONaMgAl abundance anomalies in GCs. GCs form in converging gas flows and ...
A new near-IR window of low extinction in the Galactic plane
(2018-08-01)
Aims. The windows of low extinction in the Milky Way (MW) plane are rare but important because they enable us to place structural constraints on the opposite side of the Galaxy, which has hither to been done rarely. Methods. ...