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
311 papers · 1 filter
A Trio of Metal-Rich Dust and Gas Disks Found Orbiting Candidate White Dwarfs with K-Band Excess
J. Farihi, B. T. Gänsicke, P. R. Steele +4
This paper reports follow-up photometric and spectroscopic observations, including warm Spitzer IRAC photometry of seven white dwarfs from the SDSS with apparent excess flux in UKI…
On the Self-Similar Appearance of Galaxy Clusters in X-rays
Hans Boehringer, Klaus Dolag, Gayoung Chon
The largest uncertainty for cosmological studies using clusters of galaxies is introduced by our limited knowledge of the statistics of galaxy cluster structure, and of the scaling…
Faraday synthesis: The synergy of aperture and rotation measure synthesis
M. R. Bell, T. A. Enßlin
We introduce a new technique for imaging the polarized radio sky using interferometric data. The new approach, which we call Faraday synthesis, combines aperture and rotation measu…
Distances to Galaxies from the Brightest Stars in the Universe
R. -P. Kudritzki, M. A. Urbaneja
Blue Supergiants (BSGs) are the brightest stars in the universe at visual light with absolute magnitudes up to Mv=-10 mag. They are ideal stellar objects for the determination of e…
The Atlas3D Project -- XI. Dense molecular gas properties of CO-luminous early-type galaxies
Alison Crocker, Melanie Krips, Martin Bureau +24
Surveying eighteen 12CO-bright galaxies from the ATLAS3D early-type galaxy sample with the Institut de Radio Astronomie Millimétrique (IRAM) 30m telescope, we detect 13CO(1-0) and…
Oscillation mode linewidths of main-sequence and subgiant stars observed by Kepler
T. Appourchaux, O. Benomar, M. Gruberbauer +20
Solar-like oscillations have been observed by {\it Kepler} and CoRoT in several solar-type stars. We study the variations of stellar p-mode linewidth as a function of effective tem…
Metal-Poor Lithium-Rich Giants in the Radial Velocity Experiment Survey
Gregory R. Ruchti, Jon P. Fulbright, Rosemary F. G. Wyse +17
We report the discovery of eight lithium-rich field giants found in a high resolution spectroscopic sample of over 700 metal-poor stars ([Fe/H]<-0.5) selected from the RAVE survey.…
General Relativistic Explosion Models of Core-Collapse Supernovae
Bernhard Mueller, Andreas Marek, Hans-Thomas Janka +1
We present results from the first generation of multi-dimensional general relativistic neutrino hydrodynamics simulations of core-collapse supernovae. A comparison with models comp…
Core-Collapse Supernovae: Explosion Dynamics, Neutrinos and Gravitational Waves
Bernhard Mueller, Hans-Thomas Janka, Andreas Marek +3
The quest for the supernova explosion mechanism has been one of the outstanding challenges in computational astrophysics for several decades. Simulations have now progressed to a s…
Chemical element ratios of SDSS early-type galaxies
Jonas Johansson, Daniel Thomas, Claudia Maraston
We discuss chemical enrichments of ~4000 SDSS early-type galaxies using as tracers the element abundance ratios [C/Fe], [N/Fe], [O/Fe], [Mg/Fe], [Ca/Fe] and [Ti/Fe]. We utilise the…
The GALEX Arecibo SDSS Survey V: The Relation between the HI Content of Galaxies and Metal Enrichment at their Outskirts
Sean M. Moran, Timothy M. Heckman, Guinevere Kauffmann +14
We have obtained long-slit spectra of 174 star-forming galaxies with stellar masses greater than 10^10 M_\odot from the GALEX Arecibo SDSS (GASS) survey. These galaxies have both H…
Formation versus destruction: the evolution of the star cluster population in galaxy mergers
J. M. Diederik Kruijssen, F. Inti Pelupessy, Henny J. G. L. M. Lamers +3
(Abridged) Interacting galaxies are well-known for their high star formation rates and rich star cluster populations, but the rapidly changing tidal field can also efficiently dest…
Bayesian analysis of cosmic structures
Francisco-Shu Kitaura
We revise the Bayesian inference steps required to analyse the cosmological large-scale structure. Here we make special emphasis in the complications which arise due to the non-Gau…
Searching for the first stars with the Gaia mission
Rafael S. de Souza, Alberto Krone-Martins, Emille E. O. Ishida +1
We construct a theoretical model to predict the number of orphan afterglows (OA) from gamma-ray bursts (GRBs) triggered by primordial metal-free (Pop III) stars expected to be obse…
The Source Density and Observability of Pair-Instability Supernovae from the First Stars
Jacob A. Hummel, Andreas H. Pawlik, Milos Milosavljevic +1
Theoretical models predict that some of the first stars ended their lives as extremely energetic pair-instability supernovae (PISNe). With energies approaching 10^53 ergs, these su…
The effect of intergalactic helium on hydrogen reionisation: implications for the sources of ionising photons at z > 6
B. Ciardi, J. S. Bolton, A. Maselli +1
We investigate the effect of helium on hydrogen reionisation using a hydrodynamical simulation combined with the cosmological radiative transfer code CRASH. The simulations are run…
A Low Mach Number Solver: Enhancing Applicability
Natalie Happenhofer, Hannes Grimm-Strele, Friedrich Kupka +2
In astrophysics and meteorology there exist numerous situations where flows exhibit small velocities compared to the sound speed. To overcome the stringent timestep restrictions po…
The Origin of Disks and Spheroids in Simulated Galaxies
Laura V. Sales, Julio F. Navarro, Tom Theuns +5
In the simplest scenario, disk galaxies form predominantly in halos with high angular momentum and quiet recent assembly history, whereas spheroids are the slowly-rotating remnants…
The Metallicity Distribution Functions of SEGUE G and K dwarfs: Constraints for Disk Chemical Evolution and Formation
Katharine J. Schlesinger, Jennifer A. Johnson, Constance M. Rockosi +14
We present the metallicity distribution function (MDF) for 24,270 G and 16,847 K dwarfs at distances from 0.2 to 2.3 kpc from the Galactic plane, based on spectroscopy from the Slo…
Anisotropy in the matter distribution beyond the baryonic acoustic oscillation scale
A. Faltenbacher, Cheng Li, Jie Wang
Tracing the cosmic evolution of the Baryonic Acoustic Oscillation (BAO) scale with galaxy two point correlation functions is currently the most promising approach to detect dark en…
The Aquila comparison Project: The Effects of Feedback and Numerical Methods on Simulations of Galaxy Formation
C. Scannapieco, M. Wadepuhl, O. H. Parry +20
We compare the results of thirteen cosmological gasdynamical codes used to simulate the formation of a galaxy in the LCDM structure formation paradigm. The various runs differ in t…
Observing simulated galaxy clusters with PHOX: a novel X-ray photon simulator
Veronica Biffi, Klaus Dolag, Hans Boehringer +1
We present a novel, virtual X-ray observatory designed to obtain synthetic observations from hydro-numerical simulations, named PHOX. In particular, we provide a description of the…
3D hydrodynamical model atmospheres: a tool to correct radial velocities and parallaxes for Gaia
A. Chiavassa, L. Bigot, F. Thevenin +4
Convection plays an essential role in the emerging intensity for many stars that will be observed by Gaia. Convective-related surface structures affect the shape, shift, and asymme…
The Atlas3D project -- XIII. Mass and morphology of HI in early-type galaxies as a function of environment
Paolo Serra, Tom Oosterloo, Raffaella Morganti +23
We present the Atlas3D HI survey of 166 nearby early-type galaxies (ETGs) down to M(HI)~10^7 M_sun. We detect HI in ~40% of all ETGs outside the Virgo cluster and in ~10% of all ET…