activity
19942024
most citedThe Soft X-Ray Properties of a Complete Sample of Optically Selected Quasars II. Final Results

552 citations · 16.5k across the 268 of their papers we have counts for

collaborators

270 papers

astro-ph.GA2024

TREASUREHUNT: Transients and Variability Discovered with HST in the JWST North Ecliptic Pole Time Domain Field

Rosalia O'Brien, Rolf A. Jansen, Norman A. Grogin +56

The JWST North Ecliptic Pole (NEP) Time Domain Field (TDF) is a 14 arcmin diameter field optimized for multi-wavelength time-domain science with JWST. It has been observed acros…

astro-ph.IM2023★ 7 cited

Lunar Far-Side Radio Arrays: A Preliminary Site Survey

Zoe A. Le Conte, Martin Elvis, Philipp A. Gläser

The origin and evolution of structure in the Universe could be studied in the Dark Ages. The highly redshifted HI signal between 30 < z < 80 is the only observable signal from this…

astro-ph.GA2023★ 3 cited

The most luminous blue quasars at 3.0<z<3.3 -- III. LBT spectra and accretion parameters

Bartolomeo Trefoloni, Elisabeta Lusso, Emanuele Nardini +13

We present the analysis of the rest frame ultraviolet and optical spectra of 30 bright blue quasars at , selected to examine the suitability of AGN as cosmological probes.…

astro-ph.GA2023★ 42 cited

HYPerluminous quasars at the Epoch of ReionizatION (HYPERION). A new regime for the X-ray nuclear properties of the first quasars

L. Zappacosta, E. Piconcelli, F. Fiore +40

The existence of luminous quasars (QSO) at the Epoch of Reionization (EoR; i.e. z>6) powered by supermassive black holes (SMBH) with masses challenges models…

astro-ph.GA2023★ 18 cited

Deep Chandra Observations of NGC 5728: Morphology and Spectral Properties of the Extended X-ray Emission

Anna Trindade Falcao, G. Fabbiano, M. Elvis +2

Recent deep Chandra observations of nearby Compton thick (CT) AGN have produced surprising results, uncovering extended emission not only in the soft X-rays but in the hard emissio…

astro-ph.GA2023★ 20 cited

Accurate dust temperature and star formation rate in the most luminous quasar in the HYPerluminous quasars at the Epoch of ReionizatION (HYPERION) sample

Roberta Tripodi, Chiara Feruglio, Francisca Kemper +14

We present ALMA Band 9 continuum observation of the ultraluminous quasi-stellar object (QSO) SDSS J0100+2802, providing a detection at GHz. SDSS J0100+2802 is…