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Star Formation and AGN Feedback in the Local Universe: Combining LOFAR and MaNGA
(2022-09-21)
The effect of active galactic nuclei (AGN) on their host galaxies – in particular their levels of star formation – remains one of the key outstanding questions of galaxy evolution. Successful cosmological models of galaxy ...
First insights into the ISM at z > 8 with JWST: possible physical implications of a high [O III] λ4363/[O III] λ5007
(2022-09-20)
We present a detailed analysis of the rest-frame optical emission line ratios for three spectroscopically confirmed galaxies at z > 7.5. The galaxies were identified in the James Webb Space Telescope (JWST) Early Release ...
The JCMT Transient Survey : Single Epoch Transients and Variability of Faint Sources
(2022-09-15)
Short-duration flares at millimeter wavelengths provide unique insights into the strongest magnetic reconnection events in stellar coronae, and combine with longer-term variability to introduce complications to next-generation ...
Could kilomasers pinpoint supermassive stars?
(2022-09-11)
A strong nuclear kilomaser, W1, has been found in the nearby galaxy NGC 253, associated with a forming super star cluster. Kilomasers could arise from the accretion disc around supermassive stars (>10^3 Msun), hypothetical ...
Evidence of distant spiral arms in the Galactic disk quadrant IV from VVV red clump giants
(2022-09-09)
The discovery of new clear windows in the Galactic plane using the VVV near-IR extinction maps allows the study of the structure of the Milky Way (MW) disk. The ultimate goal of this work is to map the spiral arms in the ...
The environmental dependence of the stellar and gas-phase mass-metallicity relation at 2 < z < 4
(2022-08-30)
In the local universe, galaxies in clusters show different properties compared to more isolated systems. Understanding how this difference originates and whether it is already in place at high redshift is still a matter ...
The extinction law in the inner 3 × 3 deg 2of the Milky Way and the red clump absolute magnitude in the inner bar-bulge
(2022-08-01)
The extinction law from 0.9 to 8 microns in the inner 3x3 deg^2 of the Milky Way is measured using data from VISTA Variables in the Via Lactea, GLIMPSE and WISE. Absolute extinction ratios are found by requiring that the ...
Bayesian hierarchical modelling of the M*–SFR relation from 1 ≲ z ≲ 6 in ASTRODEEP
(2022-07-31)
The Hubble Frontier Fields represent the opportunity to probe the high-redshift evolution of the main sequence of star-forming galaxies to lower masses than possible in blank fields thanks to foreground lensing of massive ...
An orientation bias in observations of submillimetre galaxies
(2022-07-28)
Recent high-resolution interferometric images of submillimetre galaxies (SMGs) reveal fascinatingly complex morphologies. This raises a number of questions: how does the relative orientation of a galaxy affect its observed ...
Subarcsecond view on the high-redshift blazar GB 1508+5714 by the International LOFAR Telescope
(2022-07-12)
Context. Studies of the most distant active galactic nuclei (AGNs) allow us to test our current understanding of the physics present in radio-jetted AGNs across a range of environments, and probe their interactions with ...