138 citations · 729 across the 15 of their papers we have counts for
11 papers · 1 filter
The properties of the AGN torus as revealed from a set of unbiased NuSTAR observations
X. Zhao, S. Marchesi, M. Ajello +4
The obscuration observed in active galactic nuclei (AGN) is mainly caused by dust and gas distributed in a torus-like structure surrounding the supermassive black hole (SMBH). Howe…
The tilting rate of the Milky Way's disc
Samuel W. F. Earp, Victor P. Debattista, Andrea V. Macciò +1
We present tilting rates for galaxies comparable to the Milky Way (MW) in a cold dark matter cosmological hydrodynamical simulation, and compare these with the predicted tiltin…
The kinematics of σ-drop bulges from spectral synthesis modelling of a hydrodynamical simulation
Elisa Portaluri, Victor P. Debattista, Maximillian Fabricius +7
A minimum in stellar velocity dispersion is often observed in the central regions of disc galaxies. To investigate the origin of this feature, known as a σ-drop, we analyse the ste…
A centrally heated dark halo for our Galaxy
David R. Cole, James Binney
We construct a new family of models of our Galaxy in which dark matter and disc stars are both represented by distribution functions that are analytic functions of the action integ…
Spatial and kinematic segregation in star cluster merger remnants
David R. Cole, Victor P. Debattista, Anna Lisa Varri +2
Globular clusters which exhibit chemical and dynamical complexity have been suggested to be the stripped nuclei of dwarf galaxies (e.g., M54, Cen). We use -body simulations…
A Kiloparsec-Scale Nuclear Stellar Disk in the Milky Way as a Possible Explanation of the High Velocity Peaks in the Galactic Bulge
Victor P. Debattista, Melissa Ness, Samuel W. F. Earp +1
The Apache Point Observatory Galactic Evolution Experiment has measured the stellar velocities of red giant stars in the inner Milky Way. We confirm that the line of sight velocity…
Nuclear Star Clusters and Bulges
David R. Cole, Victor P. Debattista
Nuclear star clusters are among the densest stellar systems known and are common in both early- and late-type galaxies. They exhibit scaling relations with their host galaxy which…
Internal Alignments of Red Versus Blue Discs in Dark Matter Halos
Victor P. Debattista, Frank C. van den Bosch, Rok Roskar +3
Large surveys have shown that red galaxies are preferentially aligned with their halos while blue galaxies have a more isotropic distribution. Since halos generally align with thei…
The formation of stellar nuclear discs in bar-induced gas inflows
David R. Cole, Victor P. Debattista, Peter Erwin +2
The role of gas in the mass assembly at the nuclei of galaxies is still subject to some uncertainty. Stellar nuclear discs bridge the gap between the large-scale galaxy and the cen…
Young stars in an old bulge: a natural outcome of internal evolution in the Milky Way
M. Ness, Victor. P. Debattista, T. Bensby +5
The center of our disk galaxy, the Milky Way, is dominated by a boxy/peanut-shaped bulge. Numerous studies of the bulge based on stellar photometry have concluded that the bulge st…
Thermal instabilities in cooling galactic coronae: fuelling star formation in galactic discs
Alexander Hobbs, Justin Read, Chris Power +1
We investigate the means by which cold gas can accrete onto Milky Way mass galaxies from a hot corona of gas, using a new smoothed particle hydrodynamics code, 'SPHS'. We find that…