Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Max Planck SocietyDE1.2k papers
- Centre National de la Recherche ScientifiqueFR1k papers
- National Institute for AstrophysicsIT820 papers
- European Southern ObservatoryCL784 papers
- Center for Astrophysics Harvard & SmithsonianUS755 papers
- Max Planck Institute for Extraterrestrial PhysicsDE722 papers
- Ludwig-Maximilians-Universität MünchenDE639 papers
- Space Research InstituteRU602 papers
- Osservatorio Astronomico di PadovaIT600 papers
- California Institute of TechnologyUS581 papers
- Trieste Astronomical ObservatoryIT566 papers
- University of California, BerkeleyUS566 papers
256 papers · 1 filter
A Joint Chandra and XMM-Newton View of Abell 3158: Massive Off-Centre Cool Gas Clump As A Robust Diagnostic of Merger Stage
Yu Wang, Haiguang Xu, Liyi Gu +5
By analysing the Chandra and XMM-Newton archived data of the nearby galaxy cluster Abell 3158, which was reported to possess a relatively regular, relaxed morphology in the X-ray b…
Detection of solar-like oscillations from Kepler photometry of the open cluster NGC 6819
Dennis Stello, Sarbani Basu, Hans Bruntt +49
Asteroseismology of stars in clusters has been a long-sought goal because the assumption of a common age, distance and initial chemical composition allows strong tests of the theor…
AGN pairs: chance superpositions or black hole binaries?
M. Dotti, M. Ruszkowski
Several active galactic nuclei (AGN) with multiple sets of emission lines separated by over 2000 km/s have been observed recently. These have been interpreted as being due to massi…
Nebular Spectra and Explosion Asymmetry of Type Ia Supernovae
Keiichi Maeda, Stefan Taubenberger, Jesper Sollerman +4
The spectral signatures of asymmetry in Type Ia Supernova (SN Ia) explosions are investigated, using a sample of late-time nebular spectra. First, a kinematical model is constructe…
Morphologies of local Lyman break galaxy analogs II: A Comparison with galaxies at z=2-4 in ACS and WFC3 images of the Hubble Ultra Deep Field
R. A. Overzier, T. M. Heckman, D. Schiminovich +4
Lyman break galaxies (LBGs) display a range in structures (from single/compact to clumpy/extended) that is different from typical local star-forming galaxies. Recently, we have int…
Substructure of the galaxy clusters in the REXCESS sample: observed statistics and comparison to numerical simulations
H. Boehringer, G. W. Pratt, M. Arnaud +6
We study the substructure statistics of a representative sample of galaxy clusters by means of two currently popular substructure characterisation methods, power ratios and centroi…
One simulation to fit them all - changing the background parameters of a cosmological N-body simulation
Raul E. Angulo, Simon D. M. White
We demonstrate that the output of a cosmological N-body simulation can, to remarkable accuracy, be scaled to represent the growth of large-scale structure in a cosmology with param…
Local Kinematics and the Local Standard of Rest
R. Schoenrich, J. Binney, W. Dehnen
We re-examine the stellar kinematics of the Solar neighbourhood in terms of the velocity of the Sun with respect to the local standard of rest. We show that the classical determina…
Observational signatures for depletion in the Spite plateau: solving the cosmological Li discrepancy?
J. Melendez, L. Casagrande, I. Ramirez +2
We present Li abundances for 73 stars in the metallicity range -3.5 < [Fe/H] < -1.0 using improved IRFM temperatures (Casagrande et al. 2010) with precise E(B-V) values obtained mo…
On the progenitor and early evolution of the type II supernova 2009kr
M. Fraser, K. Takats, A. Pastorello +13
We report the identification of a source coincident with SN 2009kr in HST pre-explosion images. The object appears to be a single point source with an intrinsic colour V-I = 1.1 an…
The GALEX Arecibo SDSS Survey. I. Gas Fraction Scaling Relations of Massive Galaxies and First Data Release
Barbara Catinella, David Schiminovich, Guinevere Kauffmann +23
We introduce the GALEX Arecibo SDSS Survey (GASS), an on-going large program that is gathering high quality HI-line spectra using the Arecibo radio telescope for an unbiased sample…
Pulsation Period Changes as a Tool to Identify Pre-Zero Age Horizontal Branch Stars
V. Silva Aguirre, M. Catelan, A. Weiss +1
One of the most dramatic events in the life of a low-mass star is the He flash, which takes place at the tip of the red giant branch (RGB) and is followed by a series of secondary…
Weighing simulated galaxy clusters using lensing and X-ray
M. Meneghetti, E. Rasia, J. Merten +4
We aim at investigating potential biases in lensing and X-ray methods to measure the cluster mass profiles. We do so by performing realistic simulations of lensing and X-ray observ…
Large jets from small-scale magnetic fields
R. Moll
We consider the conditions under which a rotating magnetic object can produce a magnetically powered outflow in an initially unmagnetized medium stratified under gravity. 3D MHD si…
Modeling the Subsurface Structure of Sunspots
H. Moradi, C. Baldner, A. C. Birch +19
While sunspots are easily observed at the solar surface, determining their subsurface structure is not trivial. There are two main hypotheses for the subsurface structure of sunspo…
Magnetic power spectra from Faraday rotation maps - REALMAF and its use on Hydra A
Petr Kuchar, Torsten A. Ensslin
We develop a novel maximum-a-posteriori method to measure magnetic power spectra from Faraday rotation data and implement it in the REALMAF code. A sophisticated model for the magn…
Cluster Galaxies Die Hard
Simone M. Weinmann, Guinevere Kauffmann, Anja von der Linden +1
We investigate how the specific star formation rates of galaxies of different masses depend on cluster-centric radius and on the central/satellite dichotomy in both field and clust…
Numerical viscosity in hydrodynamics simulations in general relativity
Pablo Cerdá-Durán
We present an alternative method to estimate the numerical viscosity in simulations of astrophysical objects, which is based in the damping of fluid oscillations. We apply the meth…
The Stellar Mass Components of Galaxies: Comparing Semi-Analytical Models with Observation
Lei Liu, Xiaohu Yang, H. J. Mo +2
We compare the stellar masses of central and satellite galaxies predicted by three independent semianalytical models with observational results obtained from a large galaxy group c…
Particle hydrodynamics with tessellation techniques
S. Hess, V. Springel
Lagrangian smoothed particle hydrodynamics (SPH) is a well-established approach to model fluids in astrophysical problems, thanks to its geometric flexibility and ability to automa…
Neutrino Signal of Electron-Capture Supernovae from Core Collapse to Cooling
L. Huedepohl, B. Mueller, H. -Th. Janka +2
An 8.8 solar mass electron-capture supernova (SN) was simulated in spherical symmetry consistently from collapse through explosion to nearly complete deleptonization of the forming…
Sizes and ages of SDSS ellipticals: Comparison with hierarchical galaxy formation models
Francesco Shankar, Federico Marulli, Mariangela Bernardi +3
In a sample of about 45,700 early-type galaxies extracted from SDSS, we find that the shape, normalization, and dispersion around the mean size-stellar mass relation is the same fo…
A wide angle view of the Sagittarius dwarf Spheroidal Galaxy. I: VIMOS photometry and radial velocities across Sgr dSph major and minor axis
G. Giuffrida, L. Sbordone, S. Zaggia +5
The Sagittarius dwarf Spheroidal Galaxy (Sgr dSph) provides us with a unique possibility of studying a dwarf galaxy merging event while still in progress. Due to its low distance (…
The joint evolution of baryons and dark matter haloes
Susana E. Pedrosa, Patricia B. Tissera, Cecilia Scannapieco
We have studied the dark matter (DM) distribution in a approx 10^12 h^-1 M_sun mass halo extracted from a simulation consistent with the concordance cosmology, where the physics re…