Search Publications
The Large, Oxygen-Rich Halos of Star-Forming Galaxies Are a Major Reservoir of Galactic Metals
Sembach, K. R.; Davé, R.; Prochaska, J. X. +11 more
The circumgalactic medium (CGM) is fed by galaxy outflows and accretion of intergalactic gas, but its mass, heavy element enrichment, and relation to galaxy properties are poorly constrained by observations. In a survey of the outskirts of 42 galaxies with the Cosmic Origins Spectrograph onboard the Hubble Space Telescope, we detected ubiquitous, …
Massive Molecular Outflows and Negative Feedback in ULIRGs Observed by Herschel-PACS
Lutz, D.; Genzel, R.; Maiolino, R. +13 more
Mass outflows driven by stars and active galactic nuclei (AGNs) are a key element in many current models of galaxy evolution. They may produce the observed black-hole-galaxy mass relation and regulate and quench both star formation in the host galaxy and black hole accretion. However, observational evidence of such feedback processes through outfl…
The MCXC: a meta-catalogue of x-ray detected clusters of galaxies
Arnaud, M.; Pointecouteau, E.; Pratt, G. W. +2 more
We present the compilation and properties of a meta-catalogue of X-ray detected clusters of galaxies, the MCXC. This very large catalogue is based on publicly available ROSAT All Sky Survey-based (NORAS, REFLEX, BCS, SGP, NEP, MACS, and CIZA) and serendipitous (160SD, 400SD, SHARC, WARPS, and EMSS) cluster catalogues. Data have been systematically…
Planck early results. I. The Planck mission
Kneissl, R.; Miville-Deschênes, M. -A.; Bernard, J. -P. +272 more
The European Space Agency's Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue to gather scientific data until the end of its cryogenic lifetime. We give an overview of the history of Planck in its first y…
Map-projection-independent crater size-frequency determination in GIS environments—New software tool for ArcGIS
Neukum, G.; van Gasselt, S.; Kneissl, T.
Statistical analysis of crater size-frequency distributions (CSFDs) of impact craters on planetary surfaces is a well-established method to derive absolute ages on the basis of remotely-sensed image data. Although modelling approaches and the derivation of absolute ages from a given CSFD have been described and discussed in considerable depth sinc…
A Photometric Redshift of z ~ 9.4 for GRB 090429B
Sakamoto, T.; D'Avanzo, P.; Greiner, J. +33 more
Gamma-ray bursts (GRBs) serve as powerful probes of the early universe, with their luminous afterglows revealing the locations and physical properties of star-forming galaxies at the highest redshifts, and potentially locating first-generation (Population III) stars. Since GRB afterglows have intrinsically very simple spectra, they allow robust re…
The NEWFIRM Medium-band Survey: Photometric Catalogs, Redshifts, and the Bimodal Color Distribution of Galaxies out to z ~ 3
van Dokkum, Pieter G.; Franx, Marijn; Illingworth, Garth D. +15 more
We present deep near-IR (NIR) medium-bandwidth photometry over the wavelength range 1-1.8 µm in the All-wavelength Extended Groth strip International Survey (AEGIS) and Cosmic Evolution Survey (COSMOS) fields. The observations were carried out using the NOAO Extremely Wide-Field Infrared Imager (NEWFIRM) on the Mayall 4 m Telescope on Kitt P…
PACS Evolutionary Probe (PEP) - A Herschel key program
Berta, S.; Magnelli, B.; Nordon, R. +35 more
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 scientific motivation for the PACS Evolutionary Probe (PEP) guaranteed time key program and its role within the entire set of Herschel surveys, and the field selection that inc…
The Spitzer Ice Legacy: Ice Evolution from Cores to Protostars
Öberg, Karin I.; van Dishoeck, Ewine F.; Pontoppidan, Klaus M. +5 more
Ices regulate much of the chemistry during star formation and account for up to 80% of the available oxygen and carbon. In this paper, we use the Spitzer c2d Legacy ice survey, complimented with data sets on ices in cloud cores and high-mass protostars, to determine standard ice abundances and to present a coherent picture of the evolution of ices…
KINGFISH—Key Insights on Nearby Galaxies: A Far-Infrared Survey with Herschel: Survey Description and Image Atlas
Helou, G.; Roussel, H.; Murphy, E. J. +40 more
The KINGFISH project (Key Insights on Nearby Galaxies: a Far-Infrared Survey with Herschel) is an imaging and spectroscopic survey of 61 nearby (d < 30 Mpc) galaxies, chosen to cover a wide range of galaxy properties and local interstellar medium (ISM) environments found in the nearby universe. Its broad goals are to characterize the ISM of pre…