8.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Leiden UniversityNL722 papers
- Centre National de la Recherche ScientifiqueFR633 papers
- University of AmsterdamNL630 papers
- University of GroningenNL511 papers
- Center for Astrophysics Harvard & SmithsonianUS508 papers
- Radboud University NijmegenNL424 papers
- Leiden Observatory362 papers
- Max Planck Institute for Extraterrestrial PhysicsDE362 papers
- National Institute for AstrophysicsIT342 papers
- Goddard Space Flight CenterUS333 papers
- California Institute of TechnologyUS313 papers
- University of CambridgeGB299 papers
37 papers · 2 filters
Absorption and scattering by interstellar dust in the silicon K-edge of GX 5-1
S. T. Zeegers, E. Costantini, C. P. de Vries +6
We study the absorption and scattering of X-ray radiation by interstellar dust particles, which allows us to access the physical and chemical properties of dust. The interstellar d…
Herschel / HIFI spectral line survey of the Orion Bar - Temperature and density differentiation near the PDR surface
Z. Nagy, Y. Choi, V. Ossenkopf-Okada +7
Photon Dominated Regions (PDRs) are interfaces between the mainly ionized and mainly molecular material around young massive stars. Analysis of the physical and chemical structure…
Space Telescope and Optical Reverberation Mapping Project VI: reverberating Disk Models for NGC 5548
D. Starkey, Keith Horne, M. M. Fausnaugh +90
We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continu…
Galaxy And Mass Assembly (GAMA): Active Galactic Nuclei in Pairs of Galaxies
Yjan A. Gordon, Matt S. Owers, Kevin A. Pimbblet +14
There exist conflicting observations on whether or not the environment of broad and narrow line AGN differ and this consequently questions the validity of the AGN unification model…
Detection of faint broad emission lines in type 2 AGN: I. Near infrared observations and spectral fitting
F. Onori, F. La Franca, F. Ricci +8
We present medium resolution near infrared spectroscopic observations of 41 obscured and intermediate class AGN (type 2, 1.9 and 1.8; AGN2) with redshift 0.1, selected…
Novel calibrations of virial black hole mass estimators in active galaxies based on X-ray luminosity and optical/NIR emission lines
F. Ricci, F. La Franca, F. Onori +1
Accurately weigh the masses of SMBH in AGN is currently possible for only a small group of local and bright broad-line AGN through reverberation mapping (RM). Statistical demograph…
OGLE Collection of Star Clusters. New Objects in the Outskirts of the Large Magellanic Cloud
M. Sitek, M. K. Szymański, D. M. Skowron +13
The Magellanic System (MS), consisting of the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC) and the Magellanic Bridge (MBR), contains diverse sample of star cluste…
The molecular gas mass of M33
P. Gratier, J. Braine, K. Schuster +15
[Abridged] Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done usin…
Structure and kinematics of the clouds surrounding the Galactic mini-starburst W43 MM1
T. Jacq, J. Braine, F. Herpin +2
Massive stars have a major influence on their environment yet their formation is difficult to study. W43 is a highly luminous galactic massive star forming region at a distance of…
Origin of central abundances in the hot intra-cluster medium - II. Chemical enrichment and supernova yield models
François Mernier, Jelle de Plaa, Ciro Pinto +7
The hot intra-cluster medium (ICM) is rich in metals, which are synthesised by supernovae (SNe) and accumulate over time into the deep gravitational potential well of clusters of g…
Direct probe of the inner accretion flow around the supermassive black hole in NGC 2617
M. Giustini, E. Costantini, B. De Marco +12
NGC 2617 is a nearby () active galaxy that recently switched from being a Seyfert 1.8 to be a Seyfert 1.0. At the same time, it underwent a strong increase of X-ray flu…
GAMA/H-ATLAS: Common star-formation rate indicators and their dependence on galaxy physical parameters
L. Wang, P. Norberg, M. L. P. Gunawardhana +30
We compare common star-formation rate (SFR) indicators in the local Universe in the GAMA equatorial fields (around 160 sq. deg.), using ultraviolet (UV) photometry from GALEX, far-…
Extreme star formation events in quasar hosts over
Lura K. Pitchford, Evanthia Hatziminaoglou, Anna Feltre +7
We explore the relationship between active galactic nuclei and star formation in a sample of 513 optically luminous type 1 quasars up to redshifts of 4 hosting extremely high…
The Quiescent Intracluster Medium in the Core of the Perseus Cluster
Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu +213
Clusters of galaxies are the most massive gravitationally-bound objects in the Universe and are still forming. They are thus important probes of cosmological parameters and a host…
The faint end of the 250 micron luminosity function at z < 0.5
L. Wang, P. Norberg, M. Bethermin +12
Aims. We aim to study the 250 micron luminosity function (LF) down to much fainter luminosities than achieved by previous efforts. Methods. We developed a modified stacking method…
The ionization rates of galactic nuclei and disks from Herschel/HIFI observations of water and its associated ions
Floris van der Tak, Axel Weiss, Lijie Liu +1
(Abridged) We present Herschel/HIFI spectra of the H2O 1113 GHz and H2O+ 1115 GHz lines toward five nearby prototypical starburst/AGN systems, and OH+ 971 GHz spectra toward three…
Multiwavelength campaign on Mrk 509 XV. A global modeling of the broad emission lines in the Optical, UV and X-ray bands
E. Costantini, G. Kriss, J. S. Kaastra +11
We model the broad emission lines present in the optical, UV and X-ray spectra of Mrk 509, a bright type 1 Seyfert galaxy. The broad lines were simultaneously observed during a lar…
HELP: XID+, The Probabilistic De-blender for Herschel SPIRE maps
P. D. Hurley, S. Oliver, M. Betancourt +13
We have developed a new prior-based source extraction tool, XID+, to carry out photometry in the Herschel SPIRE maps at the positions of known sources. XID+ is developed using a pr…
HELP: star formation as function of galaxy environmentwith Herschel
S. Duivenvoorden, S. Oliver, V. Buat +15
The Herschel Extragalactic Legacy Project (HELP) brings together a vast range of data from many astronomical observatories. Its main focus is on the Herschel data, which maps dust…
OGLE16aaa - a Signature of a Hungry Super Massive Black Hole
Łukasz Wyrzykowski, M. Zieliński, Z. Kostrzewa-Rutkowska +22
We present the discovery and first three months of follow-up observations of a currently on-going unusual transient detected by the OGLE-IV survey, located in the centre of a galax…
Origin of central abundances in the hot intra-cluster medium - I. Individual and average abundance ratios from XMM-Newton EPIC
François Mernier, Jelle de Plaa, Ciro Pinto +5
The hot intra-cluster medium (ICM) is rich in metals, which are synthesized by supernovae (SNe) explosions and accumulate over time into the deep gravitational potential well of cl…
XMM-Newton reveals a Seyfert-like X-ray spectrum in the z=3.6 QSO B1422+231
M. Dadina, C. Vignali, M. Cappi +5
Matter flows in the central regions of quasars during their active phases are probably responsible for the properties of the super-massive black holes and that of the bulges of hos…
Detection of Faint BLR Components in the Starburst/Seyfert Galaxy NGC 6221 and Measure of the Central BH Mass
Fabio La Franca, Francesca Onori, Federica Ricci +4
In the last decade, using single epoch virial based techniques in the optical band, it has been possible to measure the central black hole mass on large AGN1 samples. However these…
The star-formation rate density from z = 0-6
Michael Rowan-Robinson, Seb Oliver, Lingyu Wang +6
We use 3035 Herschel-SPIRE 500m sources from 20.3 sq deg of sky in the HerMES Lockman, ES1 and XMM-LSS areas to estimate the star-formation rate density at z = 1-6. 500 mu sourc…