14 papers
Diverse ionized gas conditions in a dynamically hot, interacting galaxy at revealed by JWST/NIRSpec IFU
Ryota Ikeda, Takahiro Morishita, Massimo Stiavelli +1
We present a spatially and spectrally resolved study of an interacting galaxy, Gz9p3 at , using the James Webb Space Telescope NIRSpec/G395H IFU observation with high-spect…
A recoiling supermassive black hole in a powerful quasar
Marco Chiaberge, Takahiro Morishita, Matteo Boschini +14
Supermassive black holes (SMBH) are thought to grow through accretion of matter and mergers. Models of SMBH mergers have long suffered the final parsec problem, where SMBH binaries…
Pristine Massive Star Formation Caught at the Break of Cosmic Dawn
Takahiro Morishita, Zhaoran Liu, Massimo Stiavelli +3
The existence of galaxies with no heavy elements is a key prediction of cosmological models. So far no "zero-metallicity", or Population~III, galaxies have been identified. Here, w…
Possible evidence for a pair-instability supernova nature of ultra-early JWST sources
Andrea Ferrara, Stefano Carniani, Takahiro Morishita +1
Recent JWST observations have revealed a population of unexpectedly bright sources at ultra-high redshift (), challenging current models of early galaxy formation. One extr…
JWST Spectroscopic Insights Into the Diversity of Galaxies in the First 500 Myr: Short-Lived Snapshots Along a Common Evolutionary Pathway
Guido Roberts-Borsani, Pascal Oesch, Richard Ellis +21
We investigate the nature and spectroscopic diversity of early galaxies from a sample of 41 sources at z>10 with JWST/NIRSpec prism observations. We compare the properties of stron…
The BoRG- Survey: Analogs at to the UV-luminous Galaxy Population at
SofÃa Rojas-Ruiz, Guido Roberts-Borsani, Takahiro Morishita +7
The population of bright galaxies at discovered by JWST, including the so-called "blue monsters", has been difficult to reconcile with standard galaxy evolution models…