Aims: We aim to study the structure and kinematics of the broad line region (BLR) of a sample of 27 gravitationally lensed quasars with up to five different...
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PublicationMicrolensing of the broad emission lines in 27 gravitationally lensed quasars. Broad line region structure and kinematics
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PublicationMultiwavelength observations of the extraordinary accretion event AT2021lwx
We present observations from X-ray to mid-infrared wavelengths of the most energetic non-quasar transient ever observed, AT2021lwx. Our data show a single...
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PublicationOzDES Reverberation Mapping Program: Hβ lags from the 6-yr survey
Reverberation mapping measurements have been used to constrain the relationship between the size of the broad-line region and luminosity of active galactic...
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PublicationPrimary Black Hole Spin in OJ 287 as Determined by the General Relativity Centenary Flare
OJ 287 is a quasi-periodic quasar with roughly 12 year optical cycles. It displays prominent outbursts that are predictable in a binary black hole model. The...
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PublicationProbing the roles of orientation and multiscale gas distributions in shaping the obscuration of active galactic nuclei through cosmic time
The origin of obscuration in active galactic nuclei (AGNs) is still an open debate. In particular, it is unclear what drives the relative contributions to the...
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PublicationProbing the roles of orientation and multiscale gas distributions in shaping the obscuration of active galactic nuclei through cosmic time
The origin of obscuration in active galactic nuclei (AGNs) is still an open debate. In particular, it is unclear what drives the relative contributions to the...
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PublicationRevealing the structure of the lensed quasar Q 0957+561. II. Supermassive black hole mass via gravitational redshift
Aims: We intend to use the impact of microlensing on the Fe III λλ2039−2113 emission line blend along with a measure of its gravitational redshift to estimate...
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NewsSimilar states of activity identified in supermassive and stellar mass black holes
The researchers Juan A. Fernández-Ontiveros, of the Istituto Nazionale di Astrofisica (INAF) in Rome and Teo Muñoz-Darias, of the Instituto de Astrofísica de...
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PublicationSpace Telescope and Optical Reverberation Mapping Project. IX. Velocity-Delay Maps for Broad Emission Lines in NGC 5548
In this contribution, we achieve the primary goal of the active galactic nucleus (AGN) STORM campaign by recovering velocity-delay maps for the prominent broad...