18.1k citations
- European Space Research and Technology CentreNL660 papers
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14 papers · 1 filter
Edgeless Silicon Detectors for the TOTEM Experiment
G. Ruggiero
Silicon detectors for the Roman Pots of the large hadron collider TOTEM experiment aim for full sensitivity at the edge where a terminating structure is required for electrical sta…
Optical to mid-IR observations of Lyman-alpha galaxies at redshift 5 in the HUDF: a young and low mass population
Norbert Pirzkal, Sangeeta Malhotra, James E. Rhoads +1
High redshift galaxies selected on the basis of their strong Lyman-alpha emission tend to be young ages and small physical sizes. We show this by analyzing the spectral energy dist…
Swift and XMM-Newton Observations of the Extraordinary GRB 060729: An afterglow with a more than 100 days X-ray light curve
Dirk Grupe, Caryl Gronwall, Xiang-Yu Wang +8
We report the results of the Swift and XMM observations of the Swift-discovered long Gamma-Ray Burst GRB 060729 (=115s). The afterglow of this burst was exceptionally brigh…
The multi-component field topology of sunspot penumbrae - A diagnostic tool for spectropolarimetric measurements
D. A. N. Mueller, R. Schlichenmaier, G. Fritz +1
Context: Sunspot penumbrae harbor highly structured magnetic fields and flows. The moving flux tube model offers an explanation for several observed phenomena, e.g. the Evershed ef…
The Hubble Ultra Deep Field
Steven V. W. Beckwith, Massimo Stiavelli, Anton M. Koekemoer +12
This paper presents the Hubble Ultra Deep Field (HUDF), a one million second exposure of an 11 square minute-of-arc region in the southern sky with the Hubble Space Telescope. The…
Anomalous H_2CO Absorption Towards the Galactic Anticenter: A Blind Search for Dense Molecular Clouds
Monica Ivette Rodriguez, Ronald J. Allen, Laurent Loinard +1
We have carried out a blind search in the general direction of the Galactic Anticenter for absorption of the Cosmic Microwave Background (CMB) radiation near 4.83 GHz by molecular…