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- European Space Research and Technology CentreNL660 papers
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371 papers · 1 filter
Near-IR spectroscopic ages of massive star clusters in M82
A. Lançon, J. S. Gallagher, M. Mouhcine +3
Like other starburst galaxies, M82 hosts compact, massive young star clusters that are interesting both in their own right and as benchmarks for population synthesis models. Can sp…
The Spitzer c2d Legacy Results: Star Formation Rates and Efficiencies; Evolution and Lifetimes
Neal J. Evans, Michael M. Dunham, Jes K. Jørgensen +15
(Abridged) The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. This paper combines informatio…
Simultaneous polarization monitoring of supernovae SN2008D/XT080109 and SN2007uy: isolating geometry from dust
J. Gorosabel, A. de Ugarte Postigo, A. J. Castro-Tirado +16
The possible existence of a continuum encompassing the diversity of explosive stellar deaths,ranging from ordinary SNe to relativistic hypernovae associated with long duration GRBs…
Stellar kinematics in double-barred galaxies: the sigma-hollows
A. de Lorenzo-Cáceres, J. Falcón-Barroso, A. Vazdekis +1
We present SAURON integral-field stellar velocity and velocity dispersion maps for four double-barred early-type galaxies: NGC2859, NGC3941, NGC4725 and NGC5850. The presence of th…
A New Hubble Space Telescope Distance to NGC 1569: Starburst Properties and IC 342 Group Membership
Aaron J. Grocholski, Alessandra Aloisi, Roeland P. van der Marel +8
We present deep HST ACS/WFC photometry of the dwarf irregular galaxy NGC 1569, one of the closest and strongest nearby starburst galaxies. These data allow us, for the first time,…
The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale
Letizia Stanghellini, Richard A. Shaw, Eva Villaver
Galactic planetary nebula (PN) distances are derived, except in a small number of cases, through the calibration of statistical properties of PNe. Such calibrations are limited by…