18.1k citations
- European Space Research and Technology CentreNL660 papers
- Centre National de la Recherche ScientifiqueFR540 papers
- European Space Astronomy CentreES533 papers
- National Institute for AstrophysicsIT433 papers
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- Institut d'Astrophysique de ParisFR382 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR353 papers
- Instituto de Astrofísica de CanariasES349 papers
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36 papers · 1 filter
The Hubble Deep Field South Flanking Fields
Ray A. Lucas, Stefi A. Baum, Thomas M. Brown +22
As part of the Hubble Deep Field South program, a set of shorter 2-orbit observations were obtained of the area adjacent to the deep fields. The WFPC2 flanking fields cover a conti…
Searching for Bulges at the End of the Hubble Sequence
Torsten Boeker, Rebecca Stanek, Roeland P. van der Marel
We investigate the stellar disk properties of a sample of 19 nearby spiral galaxies with low inclination and late Hubble type (Scd or later). We combine our high-resolution HST I-b…
HST observations of the metal rich globular clusters NGC6496 and NGC6352
L. Pulone, G. De Marchi, S. Covino +1
Deep exposures of the metal-rich globular clusters NGC6496 and NGC6352 were obtained with the WFPC2 camera on board the HST through the F606W and F814W filters. The resulting colou…
Is there really a Black Hole at the center of NGC 4041? - Constraints from gas kinematics
A. Marconi, D. J. Axon, A. Capetti +16
We present HST/STIS spectra of the Sbc spiral galaxy NGC 4041 which were used to map the velocity field of the gas in its nuclear region. We detect the presence of a compact (r~0.4…
Caught in the act: a helium-reionizing quasar near the line of sight to Q0302-003
P. Jakobsen, R. A. Jansen, S. Wagner +1
We report the discovery of a quasar at z=3.050+/-0.003, closely coincident in redshift with the isolated low-opacity feature seen near z~3.056 in the otherwise black portion of the…
Freshly ionized matter around the final Helium shell flash object V4334 Sgr (Sakurai's object)
F. Kerber, N. Pirzkal, Orsola De Marco +3
We report on the discovery of recently ionized hydrogen-deficient gas in the immediate circumstellar environment of the final helium shell flash star V4334 Sgr (Sakurai's object).…