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A snapshot of the oldest AGN feedback phases
(2021-10-18)
Active Galactic Nuclei (AGN) inject large amounts of energy into their host galaxies and surrounding environment, shaping their properties and evolution. In particular, AGN jets inflate cosmic-ray lobes, which can rise ...
Investigating the spectra and physical nature of galaxy scale jets
(2021-10-13)
Previous studies have shown that physically small, low-luminosity radio galaxies, which we refer to as galaxy scale jets (GSJ), could potentially have a significant effect upon the host galaxy's evolution. Using 6 arcsec ...
Origin of metals in old Milky Way halo stars based on GALAH and Gaia
(2021-10-01)
Stellar and supernova nucleosynthesis in the first few billion years of the cosmic history have set the scene for early structure formation in the Universe, while little is known about their nature. Making use of stellar ...
Barium lines in high-quality spectra of two metal-poor giants in the Galactic halo
(2021-10-01)
Context. Theoretical results showed the possibility that neutron capture elements were produced in the early Universe by two different sources: a frequent s-process source hosted by rotating massive stars, and a rare ...
The Fornax3D project: Planetary nebulae catalogue and independent distance measurements to Fornax cluster galaxies
(2021-09-29)
Extragalactic planetary nebulae (PNe) offer a way to determine the distance to their host galaxies thanks to the nearly universal shape of the planetary nebulae luminosity function (PNLF). Accurate PNe distance measurements ...
Herschel Photometric Observations of LITTLE THINGS Dwarf Galaxies
(2021-08-02)
We present here far-infrared photometry of galaxies in a sample that is relatively unexplored at these wavelengths: low-metallicity dwarf galaxies with moderate star formation rates. Four dwarf irregular galaxies from the ...
Introducing the NewHorizon simulation : Galaxy properties with resolved internal dynamics across cosmic time
(2021-07-28)
Hydrodynamical cosmological simulations are increasing their level of realism by considering more physical processes and having greater resolution or larger statistics. However, usually either the statistical power of such ...
The MAGPI Survey -- science goals, design, observing strategy, early results and theoretical framework
(2021-07-26)
We present an overview of the Middle Ages Galaxy Properties with Integral Field Spectroscopy (MAGPI) survey, a Large Program on ESO/VLT. MAGPI is designed to study the physical drivers of galaxy transformation at a lookback ...
Variable stars in the VVV globular clusters. II. NGC6441, NGC6569, NGC6626 (M28), NGC6656 (M22), 2MASS-GC02, and Terzan10
(2021-07-12)
Context. The Galactic globular clusters (GGCs) located in the inner regions of the Milky Way suffer from high extinction that makes their observation challenging. High densities of field stars in their surroundings complicate ...
R-Process elements from magnetorotational hypernovae
(2021-07-08)
Neutron-star mergers were recently confirmed as sites of rapid-neutron-capture (r-process) nucleosynthesis 1–3. However, in Galactic chemical evolution models, neutron-star mergers alone cannot reproduce the observed element ...