Max Planck Institute for Astrophysics

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2015 · astro-ph.GAShow all

82 papers · 2 filters

astro-ph.GA2015★ 11 cited

Tomography of the Galactic free electron density with the Square Kilometer Array

Maksim Greiner, Dominic H. F. M. Schnitzeler, Torsten A. Ensslin

We present a new algorithm to reconstruct the Galactic free electron density from pulsar dispersion measures. The algorithm performs a nonparametric tomography for a density field…

astro-ph.GA2015★ 12 cited

Kinematic Dynamo, Supersymmetry Breaking, and Chaos

Igor V. Ovchinnikov, Torsten Enßlin

The kinematic dynamo (KD) describes the growth of magnetic fields generated by the flow of a conducting medium in the limit of vanishing backaction of the fields onto the flow. The…

astro-ph.GA2015★ 26 cited

The discovery of lensed radio and X-ray sources behind the Frontier Fields cluster MACS J0717.5+3745 with the JVLA and Chandra

R. J. van Weeren, G. A. Ogrean, C. Jones +24

We report on high-resolution JVLA and Chandra observations of the HST Frontier Cluster MACS J0717.5+3745. MACS J0717.5+3745 offers the largest contiguous magnified area of any know…

astro-ph.GA2015★ 54 cited

On the stellar halo metallicity profile of Milky Way-like galaxies in the Auriga simulations

Antonela Monachesi, Facundo A. Gomez, Robert J. J. Grand +5

A recent observational study of haloes of nearby Milky Way-like galaxies shows that only half (four out of eight) of the current sample exhibits strong negative metallicity ([Fe/H]…

astro-ph.GA2015★ 179 cited

Vertical disc heating in Milky Way-sized galaxies in a cosmological context

Robert J. J. Grand, Volker Springel, Facundo A. Gómez +4

Vertically extended, high velocity dispersion stellar distributions appear to be a ubiquitous feature of disc galaxies, and both internal and external mechanisms have been proposed…

astro-ph.GA2015★ 20 cited

The galaxy correlation function as a constraint on galaxy formation physics

Marcel P. van Daalen, Bruno M. B. Henriques, Raul E. Angulo +1

We introduce methods which allow observed galaxy clustering to be used together with observed luminosity or stellar mass functions to constrain the physics of galaxy formation. We…

astro-ph.GA2015★ 90 cited

The 31 Deg $^{2}$ Release of the Stripe 82 X-ray Survey: The Point Source Catalog

Stephanie M. LaMassa, C. Megan Urry, Nico Cappelluti +23

We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg $^{2}$ of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy fiel…

astro-ph.GA2015★ 21 cited

H-ATLAS/GAMA: The nature and characteristics of optically red galaxies detected at submillimetre wavelengths

A. Dariush, S. Dib, S. Hony +39

We combine Herschel/SPIRE sub-millimeter (submm) observations with existing multi-wavelength data to investigate the characteristics of low redshift, optically red galaxies detecte…

astro-ph.GA2015★ 136 cited

The distribution of atomic hydrogen in EAGLE galaxies: morphologies, profiles, and HI holes

Yannick M. Bahe, Robert A. Crain, Guinevere Kauffmann +8

We compare the mass and internal distribution of atomic hydrogen (HI) in 2200 present-day central galaxies with M_star > 10^10 M_Sun from the 100 Mpc EAGLE Reference simulation to…

astro-ph.GA2015★ 599 cited

The APOSTLE simulations: solutions to the Local Group's cosmic puzzles

Till Sawala, Carlos S. Frenk, Azadeh Fattahi +13

The Local Group of galaxies offer some of the most discriminating tests of models of cosmic structure formation. For example, observations of the Milky Way (MW) and Andromeda satel…

astro-ph.GA2015★ 180 cited

Contributions to the accreted stellar halo: an atlas of stellar deposition

N. C. Amorisco

The accreted component of stellar halos is composed of the contributions of several satellites, falling onto their host with their different masses, at different times, on differen…

astro-ph.GA2015★ 478 cited

The stellar mass assembly of galaxies in the Illustris simulation: growth by mergers and the spatial distribution of accreted stars

Vicente Rodriguez-Gomez, Annalisa Pillepich, Laura V. Sales +9

We use the Illustris simulation to study the relative contributions of in situ star formation and stellar accretion to the build-up of galaxies over an unprecedentedly wide range o…

astro-ph.GA2015★ 43 cited

Panchromatic Hubble Andromeda Treasury XII. Mapping Stellar Metallicity Distributions in M31

Dylan Gregersen, Anil C. Seth, Benjamin F. Williams +14

We present a study of spatial variations in the metallicity of old red giant branch stars in the Andromeda galaxy. Photometric metallicity estimates are derived by interpolating is…

astro-ph.GA2015★ 23 cited

Impact of supernova and cosmic-ray driving on the surface brightness of the galactic halo in soft X-rays

Thomas Peters, Philipp Girichidis, Andrea Gatto +7

The halo of the Milky Way contains a hot plasma with a surface brightness in soft X-rays of the order $1 0^{- 12}$ erg cm $^{- 2}$ s $^{- 1}$ deg $^{- 2}$ . The origin of this gas is unclear…

astro-ph.GA2015★ 35 cited

Wide-field LOFAR imaging of the field around the double-double radio galaxy B1834+620: A fresh view on a restarted AGN and doubeltjes

E. Orrú, S. van Velzen, R. F. Pizzo +8

The existence of double-double radio galaxies (DDRGs) is evidence for recurrent jet activity in AGN, as expected from standard accretion models. A detailed study of these rare sour…

astro-ph.GA2015★ 134 cited

Origin and properties of dual and offset active galactic nuclei in a cosmological simulation at z=2

Lisa K. Steinborn, Klaus Dolag, Julia M. Comerford +3

In the last few years, it became possible to observationally resolve galaxies with two distinct nuclei in their centre. For separations smaller than 10kpc, dual and offset active g…

astro-ph.GA2015★ 40 cited

A multiwavelength view of the galaxy cluster Abell 523 and its peculiar diffuse radio source

M. Girardi, W. Boschin, F. Gastaldello +7

We study the structure of the galaxy cluster Abell 523 (A523) at z=0.104 using new spectroscopic data for 132 galaxies acquired at the Telescopio Nazionale Galileo, new photometric…

astro-ph.GA2015★ 159 cited

Star formation and molecular hydrogen in dwarf galaxies: a non-equilibrium view

Chia-Yu Hu, Thorsten Naab, Stefanie Walch +2

We study the connection of star formation to atomic (HI) and molecular hydrogen (H $_{2}$ ) in isolated, low metallicity dwarf galaxies with high-resolution ( $m_{gas}$ = 4 M$_\odot…

astro-ph.GA2015★ 154 cited

The angular momentum distribution and baryon content of star forming galaxies at z~1-3

A. Burkert, N. M. Förster Schreiber, R. Genzel +25

We analyze the angular momenta of massive star forming galaxies (SFGs) at the peak of the cosmic star formation epoch (z~0.8-2.6). Our sample of ~360 log(M*/Msun) ~ 9.3-11.8 SFGs i…

astro-ph.GA2015★ 489 cited

The EAGLE simulations of galaxy formation: public release of halo and galaxy catalogues

Stuart McAlpine, John C. Helly, Matthieu Schaller +16

We present the public data release of halo and galaxy catalogues extracted from the EAGLE suite of cosmological hydrodynamical simulations of galaxy formation. These simulations we…

astro-ph.GA2015★ 66 cited

The Massive End of the Stellar Mass Function

R. D'Souza, S. Vegetti, G. Kauffmann

We derive average flux corrections to the \texttt{Model} magnitudes of the Sloan Digital Sky Survey (SDSS) galaxies by stacking together mosaics of similar galaxies in bins of stel…

astro-ph.GA2015★ 7 cited

Blue Wings and Bumps via Fermi-like Acceleration of Lyman-alpha photons across Shocks

Andrew S. Chung, Mark Dijkstra, Benedetta Ciardi +1

We explore the impact of Fermi-like acceleration of Lyman-alpha (Lyα) photons across shock fronts on the observed Lyα spectral line shape. We first confirm the result of Neufeld &…