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VISIONS: The VISTA Star Formation Atlas
(2023-05-31)
VISIONS is an ESO public survey of five nearby (d < 500 pc) star-forming molecular cloud complexes that are canonically associated with the constellations of Chamaeleon, Corona Australis, Lupus, Ophiuchus, and Orion. The ...
The Andromeda Galaxy’s Last Major Merger: Constraints from the survey of Planetary Nebulae
(The International Astronomical Union, 2023-05-04)
The Andromeda galaxy (M 31) has experienced a tumultuous merger history as evidenced by the many substructures present in its inner halo. We use planetary nebulae (PNe) as chemodynamic tracers to shed light on the recent ...
Spectroscopic confirmation of four metal-poor galaxies at z=10.3-13.2
(2023-05)
Finding and characterizing the first galaxies that illuminated the early universe at cosmic dawn is pivotal to understand the physical conditions and the processes that led to the formation of the first stars. In the first ...
New mechanisms for forming multiple hotspots in radio jets
(2023-05-01)
Hotspots of radio galaxies are regions of shock-driven particle acceleration. Multiple hotspots have long been identified as potential indicators of jet movement or precession. Two frequent explanations describe a secondary ...
AGN candidates in the VVV near-IR galaxy catalogue
(2023-04-30)
The goal of this work is to search for Active Galactic Nuclei (AGN) in the Galactic disc at very low latitudes with |b|< 2°. For this, we studied the five sources from the VVV near-infrared (IR) galaxy catalogue that have ...
The SCUBA-2 Large eXtragalactic Survey: 850 m map, catalogue and the bright-end number counts of the XMM-LSS field
(2023-04-30)
We present 850um imaging of the XMM-LSS field observed for 170 hours as part of the James Clerk Maxwell Telescope SCUBA-2 Large eXtragalactic Survey (S2LXS). S2LXS XMM-LSS maps an area of 9 square degrees, reaching a ...
Measuring the giant radio galaxy length distribution with the LoTSS
(2023-04-19)
Context. Many massive galaxies launch jets from the accretion disk of their central black hole, but only ∼103 instances are known in which the associated outflows form giant radio galaxies (GRGs, or giants): luminous ...
Finding AGN remnant candidates based on radio morphology with machine learning
(2023-04-12)
Context. Remnant radio galaxies represent the dying phase of radio-loud active galactic nuclei (AGN). Large samples of remnant radio galaxies are important for quantifying the radio-galaxy life cycle. The remnants of ...
CosmoDRAGoN simulations -- I. Dynamics and observable signatures of radio jets in cosmological environments
(2023-04-12)
We present the Cosmological Double Radio Active Galactic Nuclei (CosmoDRAGoN) project: a large suite of simulated AGN jets in cosmological environments. These environments sample the intra-cluster media of galaxy clusters ...
Identification and properties of intense star-forming galaxies at redshifts z > 10
(2023-04-04)
Surveys with the James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested these candidate galaxies may be more massive and abundant ...