109 citations · 597 across the 13 of their papers we have counts for
13 papers
Space Telescope and Optical Reverberation Mapping Project. XII. Broad-Line Region Modeling of NGC 5548
P. R. Williams, A. Pancoast, T. Treu +155
We present geometric and dynamical modeling of the broad line region for the multi-wavelength reverberation mapping campaign focused on NGC 5548 in 2014. The dataset includes photo…
Space Telescope and Optical Reverberation Mapping Project. IX. Velocity-Delay Maps for Broad Emission Lines in NGC 5548
Keith Horne, G. De Rosa, B. M. Peterson +155
We report velocity-delay maps for prominent broad emission lines, Ly_alpha, CIV, HeII and H_beta, in the spectrum of NGC5548. The emission-line responses inhabit the interior of a…
Continuum Reverberation Mapping of the Accretion Disks in Two Seyfert 1 Galaxies
M. M. Fausnaugh, D. A. Starkey, Keith Horne +69
We present optical continuum lags for two Seyfert 1 galaxies, MCG+08-11-011 and NGC 2617, using monitoring data from a reverberation mapping campaign carried out in 2014. Our light…
Linking the fate of massive black hole binaries to the active galactic nuclei luminosity function
Massimo Dotti, Andrea Merloni, Carmen Montuori
Massive black hole binaries are naturally predicted in the context of the hierarchical model of structure formation. The binaries that manage to lose most of their angular momentum…
New insights on the recoiling/binary black hole candidate J0927+2943 via molecular gas observations
Roberto Decarli, Massimo Dotti, Chiara Mazzucchelli +2
The peculiar QSO J0927+2943 shows multiple sets of emission lines in its optical spectrum. This signature has been interpreted as the relative motion between a black hole, either r…
The nature of massive black hole binary candidates: II. Spectral energy distribution atlas
Elisabeta Lusso, Roberto Decarli, Massimo Dotti +5
Recoiling supermassive black holes (SMBHs) are considered one plausible physical mechanism to explain high velocity shifts between narrow and broad emission lines sometimes observe…
The nature of massive black hole binary candidates: I. Spectral properties and evolution
Roberto Decarli, Massimo Dotti, Michele Fumagalli +5
Theoretically, bound binaries of massive black holes are expected as the natural outcome of mergers of massive galaxies. From the observational side, however, massive black hole bi…
Caught in the Act: Discovery of a Physical Quasar Triplet
E. P. Farina, C. Montuori, R. Decarli +1
We present the discovery of a triplet of quasars at z~1.51. The whole system is well accommodated within 25 arcsec (i.e., 200 kpc in projected distance). The velocity differences a…
Search of sub-parsec massive binary black holes through line diagnosis II
C. Montuori, M. Dotti, F. Haardt +2
Massive black hole binaries at sub-parsec separations may display in their spectra anomalously small flux ratios between the MgII and CIV broad emission lines, i.e. F_MgII/F_CIV <~…
Search of sub-parsec massive binary black holes through line diagnosis
C. Montuori, M. Dotti, M. Colpi +2
We investigate on the spectral properties of an active black hole, member of a massive (10^7 - 10^9 Msun) sub-parsec black hole binary. We work under the hypothesis that the binary…
The peculiar optical spectrum of 4C+22.25: Imprint of a massive black hole binary?
Roberto Decarli, Massimo Dotti, Carmen Montuori +2
We report the discovery of peculiar features in the optical spectrum of 4C+22.25, a flat spectrum radio quasar at z=0.4183 observed in the SDSS and in a dedicated spectroscopic fol…
Probing the nature of the massive black hole binary candidate SDSS J1536+0441
R. Decarli, M. Dotti, R. Falomo +5
We present an imaging study of the black hole binary candidate SDSS J1536+0441 (z=0.3893), based on deep, high resolution VzK images collected at the ESO/VLT. The images clearly sh…
SDSSJ092712.65+294344.0: a candidate massive black hole binary
M. Dotti, C. Montuori, R. Decarli +3
In this Letter we explore the hypothesis that the quasar SDSSJ092712.65+294344.0 is hosting a massive black hole binary embedded in a circumbinary disc. The lightest, secondary bla…