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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38 papers · 1 filter
LOTIS, Super-LOTIS, SDSS and Tautenburg Observations of GRB 010921
H. S. Park, G. G. Williams, D. H. Hartmann +36
We present multi-instrument optical observations of the High Energy Transient Explorer (HETE-2)/Interplanetary Network (IPN) error box of GRB 010921. This event was the first gamma…
An HST Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: I. Observations and Image Analysis
Torsten Boeker, Seppo Laine, Roeland P. van der Marel +4
We present new HST I-band images of a sample of 77 nearby, late-type spiral galaxies with low inclination. The main purpose of this catalog is to study the frequency and properties…
Ongoing massive star formation in the bulge of M51
H. J. G. L. M. Lamers, N. Panagia, S. Scuderi +4
We studied the HST-WFPC2 observations of the inner kpc of the interacting galaxy M51 in six bands from 2550 to 8140 Angstrom. The images show an oval shaped area ("bulge") of 11x16…
Direct determination of quasar redshifts
Jos de Bruijne, Alastair Reynolds, Michael Perryman +6
We present observations of 11 quasars, selected in the range z = 2.2-4.1, obtained with ESA's Superconducting Tunnel Junction (STJ) camera on the WHT. Using a single template quasa…
The AGN contribution to mid-infrared surveys
Dario Fadda, Hector Flores, Guenther Hasinger +5
We provide constraints on the AGN contribution to the mid-IR extragalactic background light from a correlation analysis of deep X-ray and mid-IR observations in two regions centred…
Accurate Stellar Population Studies from Multiband Photometric Observations
Martino Romaniello, Nino Panagia, Salvatore Scuderi +1
We present a new technique based on multi-band near ultraviolet and optical photometry to measure both the stellar intrinsic properties, ie luminosity and effective temperature, an…