96 citations · 271 across the 8 of their papers we have counts for
8 papers
The NuSTAR Local AGN Distribution Survey (NuLANDS) I: Towards a Truly Representative Column Density Distribution in the Local Universe
Peter G. Boorman, Poshak Gandhi, Johannes Buchner +33
Hard X-ray-selected samples of Active Galactic Nuclei (AGN) provide one of the cleanest views of supermassive black hole accretion, but are biased against objects obscured by Compt…
Mapping the stellar age of the Milky Way bulge with the VVV. I. The method
F. Surot, E. Valenti, S. L. Hidalgo +8
Recent observational programmes are providing a global view of the Milky Way bulge that serves as template for detailed comparison with models and extragalactic bulges. A number of…
Dramatic X-ray spectral variability of a Compton-thick type-1 QSO at
Torben Simm, Johannes Buchner, Andrea Merloni +6
We report on the discovery of a dramatic X-ray spectral variability event observed in a broad line type-1 QSO. The XMM-Newton spectrum from the year 2000 is characterized…
X-ray photoevaporation's limited success in the formation of planetesimals by the streaming instability
Barbara Ercolano, Jeff Jennings, Giovanni Rosotti +1
The streaming instability is often invoked as solution to the fragmentation and drift barriers in planetesimal formation, catalyzing the aggregation of dust on kyr timescales to gr…
Protoplanetary disc `isochrones' and the evolution of discs in the plane
Giuseppe Lodato, Chiara E. Scardoni, Carlo F. Manara +1
In this paper, we compare simple viscous diffusion models for the disc evolution with the results of recent surveys of the properties of young protoplanetary discs. We introduce th…
The difference in metallicity distribution functions of halo stars and globular clusters as a function of galaxy type: A tracer of globular cluster formation and evolution
Henny J. G. L. M. Lamers, J. M. Diederik Kruijssen, Nate Bastian +3
Observations of globular clusters (GCs) and field stars in the halos of the giant elliptical galaxy Cen A and the spiral galaxy M31 show a large range of cluster-to-star number rat…