Publications (23)
Euclid. I. Overview of the Euclid mission
Euclid Collaboration, Y. Mellier, Abdurro'uf +1134
The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…
Herschel deep far-infrared counts through the Abell 2218 cluster-lens
B. Altieri, S. Berta, D. Lutz +35
Gravitational lensing by massive galaxy clusters allows study of the population of intrinsically faint infrared galaxies that lie below the sensitivity and confusion limits of curr…
VINE -- A numerical code for simulating astrophysical systems using particles I: Description of the physics and the numerical methods
M. Wetzstein, Andrew F. Nelson, T. Naab +1
We present a Fortran 95 code for simulating the evolution of astrophysical systems using particles to represent the underlying fluid flow. The code is designed to be versatile, fle…
Euclid: The selection of quiescent and star-forming galaxies using observed colours
L. Bisigello, U. Kuchner, C. J. Conselice +71
The Euclid mission will observe well over a billion galaxies out to and beyond. This will offer an unrivalled opportunity to investigate several key questions for understa…
Collisional Stellar Dynamics, Gas Dynamics and Special Purpose Computing
R. Spurzem, J. Makino, T. Fukushige +6
Challenging stellar dynamical problems, such as the study of gravothermal oscillations in star clusters, have in the past initiated the very successful building of GRAPE special pu…
The first Herschel view of the mass-SFR link in high-z galaxies
G. Rodighiero, A. Cimatti, C. Gruppioni +37
We exploit deep observations of the GOODS-N field taken with PACS, on board of Herschel, as part of the PEP guaranteed time, to study the link between star formation and stellar ma…
Euclid: Calibrating photometric redshifts with spectroscopic cross-correlations
K. Naidoo, H. Johnston, B. Joachimi +126
Cosmological constraints from key probes of the Euclid imaging survey rely critically on the accurate determination of the true redshift distributions, , of tomographic redsh…
Euclid preparation: I. The Euclid Wide Survey
R. Scaramella, J. Amiaux, Y. Mellier +238
Euclid is an ESA mission designed to constrain the properties of dark energy and gravity via weak gravitational lensing and galaxy clustering. It will carry out a wide area imaging…
Star formation in AGN hosts in GOODS-N
L. Shao, D. Lutz, R. Nordon +40
Sensitive Herschel far-infrared observations can break degeneracies that were inherent to previous studies of star formation in high-z AGN hosts. Combining PACS 100 and 160um obser…
The Photodetector Array Camera and Spectrometer (PACS) on the Herschel Space Observatory
A. Poglitsch, C. Waelkens, N. Geis +80
The Photodetector Array Camera and Spectrometer (PACS) is one of the three science instruments on ESA's far infrared and submillimetre observatory. It employs two Ge:Ga photoconduc…
Euclid: Quick Data Release (Q1) -- Secondary nuclei in early-type galaxies
M. Fabricius, R. Saglia, F. Balzer +165
Massive early-type galaxies (ETGs) are believed to form primarily through mergers of less massive progenitors, leaving behind numerous traces of violent formation histories, such a…
Euclid preparation LX. The use of HST images as input for weak-lensing image simulations
Euclid Collaboration, D. Scognamiglio, T. Schrabback +245
Data from the Euclid space telescope will enable cosmic shear measurements with very small statistical errors, requiring corresponding systematic error control level. A common appr…
Herschel PEP: The star-formation rates of 1.5<z<2.5 massive galaxies
R. Nordon, D. Lutz, L. Shao +31
The star formation rate (SFR) is a key parameter in the study of galaxy evolution. The accuracy of SFR measurements at z~2 has been questioned following a disagreement between obse…
The effect of the high-pass filter data reduction technique on the Herschel PACS Photometer PSF and noise
P. Popesso, B. Magnelli, S. Buttiglione +36
We investigate the effect of the "high-pass filter" data reduction technique on the Herschel PACS PSF and noise of the PACS maps at the 70, 100 and 160 um bands and in medium and f…
Euclid preparation: VIII. The Complete Calibration of the Colour-Redshift Relation survey: VLT/KMOS observations and data release
Euclid Collaboration, V. Guglielmo, R. Saglia +145
The Complete Calibration of the Colour-Redshift Relation survey (C3R2) is a spectroscopic effort involving ESO and Keck facilities designed to empirically calibrate the galaxy colo…
CosmoDM and its application to Pan-STARRS data
S. Desai, J. J. Mohr, R. Henderson +3
The Cosmology Data Management system (CosmoDM) is an automated and flexible data management system for the processing and calibration of data from optical photometric surveys. It i…
Euclid: Estimation of the impact of correlated readout noise for flux measurements with the Euclid NISP instrument
A. Jimenez Munoz, J. Macias-Perez, A. Secroun +96
The Euclid satellite, to be launched by ESA in 2022, will be a major instrument for cosmology for the next decades. \Euclid\ is composed of two instruments: the Visible (VIS) instr…
PACS Evolutionary Probe (PEP) - A Herschel Key Program
D. Lutz, A. Poglitsch, B. Altieri +35
Deep far-infrared photometric surveys studying galaxy evolution and the nature of the cosmic infrared background are a key strength of the Herschel mission. We describe the scienti…
VINE -- A numerical code for simulating astrophysical systems using particles II: Implementation and performance characteristics
Andrew F. Nelson, M. Wetzstein, T. Naab +1
We continue our presentation of VINE. We begin with a description of relevant architectural properties of the serial and shared memory parallel computers on which VINE is intended…
Dissecting the cosmic infra-red background with Herschel/PEP
S. Berta, B. Magnelli, D. Lutz +34
The constituents of the cosmic IR background (CIB) are studied at its peak wavelengths (100 and 160 um) by exploiting Herschel/PACS observations of the GOODS-N, Lockman Hole, and C…
iVINE - Ionization in the parallel tree/SPH code VINE: First results on the observed age-spread around O-stars
M. Gritschneder, T. Naab, A. Burkert +3
We present a three-dimensional, fully parallelized, efficient implementation of ionizing UV radiation for smoothed particle hydrodynamics (SPH) including self-gravity. Our method i…
Euclid: Identification of asteroid streaks in simulated images using StreakDet software
M. Pöntinen, M. Granvik, A. A. Nucita +57
The ESA Euclid space telescope could observe up to 150 000 asteroids as a side product of its primary cosmological mission. Asteroids appear as trailed sources, that is streaks, in…
Do dwarf galaxies form in tidal tails?
M. Wetzstein, T. Naab, A. Burkert
The formation of tidal dwarf galaxies (TDG) inside tidal arms of interacting disk galaxies has been studied with N-body and N-body/SPH simulations at different resolutions. In pure…