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The low-mass Initial Mass Function in the 30 Doradus starburst cluster
M. Andersen, H. Zinnecker, A. Moneti +5
We present deep Hubble Space Telescope (HST) NICMOS 2 F160W band observations of the central 56*57" (14pc*14.25pc) region around R136 in the starburst cluster 30 Dor (NGC 2070) loc…
Why Simple Stellar Population models do not reproduce the colours of Galactic open clusters
A. E. Piskunov, N. V. Kharchenko, E. Schilbach +3
(...) We search for an explanation of the disagreement between the observed integrated colours of 650 local Galactic clusters and the theoretical colours of present-day SSP models.…
Mid-infrared interferometry of massive young stellar objects. I. VLTI and Subaru observations of the enigmatic object M8E-IR
H. Linz, Th. Henning, M. Feldt +10
[abridged] Our knowledge of the inner structure of embedded massive young stellar objects is still quite limited. We attempt here to overcome the spatial resolution limitations of…
The H2 velocity structure of inner knots in HH 212: asymmetries and rotation
S. Correia, H. Zinnecker, S. T. Ridgway +1
High-resolution R~50 000 long-slit spectroscopy of the inner knots of the highly symmetrical protostellar outflow HH 212 was obtained in the 1-0 S(1) line of H2 at 2.12 micron with…
Spatially resolved mid-infrared observations of the triple system T Tauri
Th. Ratzka, A. A. Schegerer, Ch. Leinert +6
To enhance our knowledge of the characteristics and distribution of the circumstellar dust associated with the individual components of the young hierarchical triple system T Tau,…
The isolated neutron star RBS1774 revisited. Revised XMM-Newton X-ray parameters and an optical counterpart from deep LBT-observations
A. Schwope, T. Erben, J. Kohnert +12
We report optical B-band observations with the Large Binocular Telescope LBT of the isolated neutron star RBS1774. The stacked image with total exposure 2.5h reveals a candidate op…