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The LOFAR view of FR0 radio galaxies
(2020-10-09)
We explore the low-frequency radio properties of the sources in the Fanaroff-Riley class 0 catalog (FR0CAT) as seen by the LOw Frequency ARray (LOFAR) observations at 150 MHz. This sample includes 104 compact radio active ...
The GALAH Survey : Non-LTE departure coefficients for large spectroscopic surveys
(2020-10-06)
Massive sets of stellar spectroscopic observations are rapidly becoming available and these can be used to determine the chemical composition and evolution of the Galaxy with unprecedented precision. One of the major ...
Small scale star formation as revealed by VVVX galactic cluster candidates
(2020-10-02)
We report a search and analysis of obscured cluster candidates in the "VISTA Variables in the Via Lactea eXtended (VVVX)" ESO Public Survey area encompassing the region between 229.4 < l <295.2 and -4.3 < b <4.4 of the ...
The great Kite in the sky: a LOFAR observation of the radio source in Abell 2626
(2020-09-29)
The radio source at the center of the galaxy cluster Abell 2626, also known as the Kite, stands out for its unique morphology composed of four, symmetric arcs. Previous studies have probed the properties of this source at ...
ATLASGAL -- Relationship between dense star forming clumps and interstellar masers
(2020-09-29)
We have used catalogues from several Galactic plane surveys and dedicated observations to investigate the relationship between various maser species and Galactic star forming clumps, as identified by the ATLASGAL survey. ...
Discovery of a mid-infrared protostellar outburst of exceptional amplitude
(2020-09-23)
We report the discovery of a mid-infrared outburst in a Young Stellar Object (YSO) with an amplitude close to 8 mag at lambda ~ 4.6 microns. WISEA J142238.82-611553.7 is one of 23 highly variable WISE sources discovered ...
MeerKAT HI commissioning observations of MHONGOOSE galaxy ESO 302-G014
(2020-09-22)
We present the results of three commissioning HI observations obtained with the MeerKAT radio telescope. These observations make up part of the preparation for the forthcoming MHONGOOSE nearby galaxy survey, which is a ...
The Origin of Elements from Carbon to Uranium
(2020-09-15)
To reach a deeper understanding of the origin of elements in the periodic table, we construct Galactic chemical evolution (GCE) models for all stable elements from C (A = 12) to U (A = 238) from first principles, i.e., ...
CHIMPS2 : Survey description and $^{12}$CO emission in the Galactic Centre
(2020-09-10)
The latest generation of Galactic-plane surveys is enhancing our ability to study the effects of galactic environment upon the process of star formation. We present the first data from CO Heterodyne Inner Milky Way Plane ...
Eigengalaxies: describing galaxy morphology using principal components in image space
(2020-09-02)
We demonstrate how galaxy morphologies can be represented by weighted sums of "eigengalaxies" and how eigengalaxies can be used in a probabilistic framework to enable principled and simplified approaches in a variety of ...