We study the Hα equivalent width (EW(Hα)) maps of 19 galaxies at 0.6 < z < 2.2 in the Hubble Ultra Deep Field using NIRISS slitless spectroscopy as part of the...
-
PublicationNGDEEP Epoch 1: Spatially Resolved Hα Observations of Disk and Bulge Growth in Star-forming Galaxies at z ∼ 0.6–2.2 from JWST NIRISS Slitless Spectroscopy
-
PublicationNon-instantaneous gas recycling and chemical evolution in N-body disk galaxies
After briefly recalling basic facts about the metallicity gradients inspiral galaxies, we summarize two recent N-body gas-dynamical modelsthat implement a non...
-
NewsOMAIRA GONZÁLEZ MARTÍN: “The Canary Observatories have been essential in the advance of the study of nuclear activity in galaxies”
For astronomers one of the biggest obstacles is the darkness of the Universe itself, above all the darkness caused by the gas and dust which surround active...
-
TalkOn the extreme properties of massive galaxies at high redshifts
Massive (≥ 1011 M⊙) galaxies at high redshift (z ≥ 1.5) remain mysterious objects. Their extremely small sizes (effective radii of 1-2 kpc) make them as dense...
-
PublicationOn the Nature of Disks at High Redshift Seen by JWST/CEERS with Contrastive Learning and Cosmological Simulations
Visual inspections of the first optical rest-frame images from JWST have indicated a surprisingly high fraction of disk galaxies at high redshifts. Here, we...
-
PublicationPhotometric Signature of Ultraharmonic Resonances in Barred Galaxies
Bars may induce morphological features, such as rings, through their resonances. Previous studies suggested that the presence of "dark gaps," or regions of a...
-
TalkPlanning the WHT future: the WEAVE wide-field massive-multiplex spectrograph
The vision for the use of the WHT in the coming decade is taking shape. A key element is the construction and deployment of WEAVE, a wide-field massive...
-
TalkProbing the early Universe with radio galaxies
Luminous high-redshift radio galaxies (HzRGs) are associated with the most massive known galaxies in the early Universe. These galaxies have the properties...
-
StayPROF. DAISUKE KAWATA (Mullard Space Science Laboratory, University College London, UK)
Prof. Kawata is a Professor of Astronomy at Mullard Space Science Laboratory, University College London, UK. He got his PhD from Tohoku University in Japan in...