367 citations · 2.1k across the 95 of their papers we have counts for
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GA-NIFS: JWST discovers an offset AGN 740 million years after the Big Bang
Hannah Übler, Roberto Maiolino, Pablo G. Pérez-González +24
A surprising finding of recent studies is the large number of Active Galactic Nuclei (AGN) associated with moderately massive black holes (), i…
GA-NIFS: The core of an extremely massive proto-cluster at the Epoch of Reionization probed with JWST/NIRSpec
Santiago Arribas, Michele Perna, Bruno Rodríguez Del Pino +24
The SPT0311-58 system resides in a massive dark matter halo at z ~ 6.9. It hosts two dusty galaxies (E and W) with a combined star formation rate of ~3500 Msun/yr. Its surrounding…
JADES: A large population of obscured, narrow line AGN at high redshift
Jan Scholtz, Roberto Maiolino, Francesco D'Eugenio +35
We present the identification of 42 narrow-line active galactic nuclei (type-2 AGN) candidates in the two deepest observations of the JADES spectroscopic survey with JWST/NIRSpec.…
Metal enrichment and evolution in four z > 6.5 quasar sightlines observed with JWST/NIRSpec
L. Christensen, P. Jakobsen, C. Willott +7
We present JWST/NIRSpec R~2700 spectra of four high-redshift quasars: VDES J0020-3653 (z = 6.860), DELS J0411-0907 (z = 6.825), UHS J0439+1634 (z = 6.519) and ULAS J1342+0928 (z =…
GA-NIFS: High number of dual active galactic nuclei at z~3
Michele Perna, Santiago Arribas, Isabella Lamperti +23
Merger events can trigger gas accretion onto supermassive black holes (SMBHs) located at the centre of galaxies, and form close pairs of AGN. The fraction of AGN in pairs offers cr…
GA-NIFS: co-evolution within a highly star-forming galaxy group at z=3.7 witnessed by JWST/NIRSpec IFS
B. Rodríguez Del Pino, M. Perna, S. Arribas +17
We present NIRSpec IFS observations of a galaxy group around the massive GS_4891 galaxy at z=3.7 in GOODS-South that includes two other two systems, GS_4891_n to the north and GS_2…
The impact of environmental effects on AGN: a decline in the incidence of ionized outflows
B. Rodríguez Del Pino, S. Arribas, A. L. Chies-Santos +3
AGN have been generally considered to be less frequent in denser environments due to the lower number of galaxy-galaxy interactions and/or the removal of their gas-rich reservoirs…
The ultra-dense, interacting environment of a dual AGN at z 3.3 revealed by JWST/NIRSpec IFS
M. Perna, S. Arribas, M. Marshall +18
LBQS 0302-0019 is a blue quasar (QSO) at z ~ 3.3, hosting powerful outflows, and residing in a complex environment consisting of an obscured AGN candidate, and multiple companions,…
Carbonaceous dust grains seen in the first billion years of cosmic time
Joris Witstok, Irene Shivaei, Renske Smit +39
Large dust reservoirs (up to ) have been detected in galaxies out to redshift , when the age of the universe was only about 600 Myr. Genera…
GA-NIFS: Black hole and host galaxy properties of two z6.8 quasars from the NIRSpec IFU
Madeline A. Marshall, Michele Perna, Chris J. Willott +20
Integral Field Spectroscopy (IFS) with JWST NIRSpec will significantly improve our understanding of the first quasars, by providing spatially resolved, infrared spectroscopic capab…
In-orbit Performance of the Near-Infrared Spectrograph NIRSpec on the James Webb Space Telescope
T. Böker, T. L. Beck, S. M. Birkmann +47
The Near-Infrared Spectrograph (NIRSpec) is one of the four focal plane instruments on the James Webb Space Telescope. In this paper, we summarize the in-orbit performance of NIRSp…