11 citations · 26 across the 8 of their papers we have counts for
8 papers
A new era for Dual AGN science with SHARP
P. Severgnini, C. Vignali, A. De Rosa +21
The search for and the characterization of ultra-compact dual active galactic nuclei (AGN) are among the hottest topics of current extragalactic astrophysics. These systems involve…
Even a precessing clock is right twice per orbit -- The super-periods of eRO-QPE2 and challenges for quasi-periodic eruption orbital models
R. Arcodia, G. Miniutti, J. Chakraborty +25
We present OC (``observed minus calculated'') timing analysis of the quasi-periodic eruption (QPE) source eRO-QPE2 with a multi-mission X-ray campaign, which includes 32 observe…
Searching for unresolved massive black hole pairs through AGN photometric variability
Lorenzo Bertassi, Maria Charisi, Fabio Rigamonti +2
Since their discovery, AGN light curves are known to be intrinsically variable. In the optical/UV band, this variability is consistent with correlated or red noise and is particula…
Identification of periodicities with arbitrary shapes in AGN light curves
Lorenzo Bertassi, Maria Charisi, Riccardo Buscicchio +3
Massive black hole binaries are expected to be observable as periodic AGN in time-domain photometric surveys. Periodicities may originate from different physical processes, includi…
Variability in the supermassive black hole binary candidate SDSS J2320+0024: No evidence of periodic modulation
Fabio Rigamonti, Lorenzo Bertassi, Riccardo Buscicchio +5
Supermassive black hole binaries (SBHBs) are a natural outcome of galaxy mergers, and they are expected to be among the loudest gravitational-wave sources at low frequencies. The s…
Can a time evolving, asymmetric broad line region mimic a massive black hole binary?
Erika Sottocorno, Mary Ogborn, Lorenzo Bertassi +3
Gas within the influence sphere of accreting massive black holes is responsible for the emission of the broad lines observed in optical-UV spectra of unobscured active galactic nuc…
ESPRESSO reveals a single but perturbed broad-line region in the supermassive black hole binary candidate PG 1302-102
Fabio Rigamonti, Paola Severgnini, Erika Sottocorno +12
We present a new, Bayesian analysis of the highest-resolution optical spectrum of the supermassive black hole (SMBH) binary candidate PG 1302-102, obtained with ESPRESSO@VLT (R \si…
Testing compact massive black hole binary candidates through multi-epoch spectroscopy
Lorenzo Bertassi, Erika Sottocorno, Fabio Rigamonti +4
Emission from two massive black holes (MBHs) bound in a close binary is expected to be modulated by different processes, such as the Doppler boost due to the orbital motion, accret…