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             Information from the European Southern Observatory

ESO Press Release 16/03

18 June 2003                                               [ESO Logo]

Embargoed until Wednesday, June 18, 2003, 20:00 hrs CEST (18 hrs UT)
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Cosmological Gamma-Ray Bursts and Hypernovae Conclusively Linked

Part 3 of 3

Notes

[1]: Members of the Gamma-Ray Burst Afterglow Collaboration at ESO
(GRACE) team include Jens Hjorth, Pal Jakobsson, Holger Pedersen,
Kristian Pedersen and Darach Watson (Astronomical Observatory,
NBIfAFG, University of Copenhagen, Denmark), Jesper Sollerman
(Stockholm Observatory, Sweden), Palle Moeller (ESO-Garching,
Germany), Johan Fynbo (Department of Physics and Astronomy,
University of Aarhus, Denmark), Stan Woosley (Department of Astronomy
and Astrophysics, University of California, Santa Cruz, USA), Chryssa
Kouveliotou (NSSTC, Huntsville, Alabama, USA), Nial Tanvir
(Department of Physical Sciences, University of Hertfordshire, UK),
Jochen Greiner (Max-Planck-Institut fuer extraterrestrische Physik,
Garching, Germany), Michael Andersen (Astrophysikalisches Institut,
Potsdam, Germany), Alberto Castro-Tirado (Instituto de Astrofisica de
Andalucia, Granada, Spain), Jose Mar=EDa Castro Ceron, Andy Fruchter,
Javier Gorosabel and James Rhoads (Space Telescope Science Institute,
Baltimore, Maryland, USA), Lex Kaper, Evert Rol, Ed van den Heuvel
and Ralph Wijers (Astronomical Institute Anton Pannekoek, Amsterdam,
Netherlands), Sylvio Klose (Thueringer Landessternwarte Tautenburg,
Germany), Nicola Masetti and Eliana Palazzi (Istituto di Astrofisica
Spaziale e Fisica Cosmica - Sezione di Bologna, CNR, Italy), Elena
Pian (INAF, Osservatorio Astronomico di Trieste, Italy) and Paul
Vreeswijk (ESO-Santiago, Chile)

[2]: See Circular 8114 of the International Astronomical Union,
issued on April 9, 2003.

[3]: In astronomy, the "redshift" denotes the fraction by which the
lines in the spectrum of an object are shifted towards longer
wavelengths. Since the redshift of a cosmological object increases
with distance, the observed redshift of a remote galaxy also provides
an estimate of its distance.

[4]: Wolf-Rayet stars are named after two 19th-century French
astronomers, Charles Wolf and Georges Rayet.

Contacts

Jens Hjorth
Astronomical Observatory, NBIfAFG
Copenhagen, Denmark
Phone: +45 3532 5928
email: jens{at}astro.ku.dk

Chryssa Kouveliotou
NSSTC, Huntsville
Alabama, USA
Phone: +1 256 961 7604
email: Chryssa.Kouveliotou-1{at}nasa.gov

Palle Moeller
ESO
Garching, Germany
Phone: +49 89 3200-6246
Phone (June 15 through June 20): +49 170 866 8617
email: pmoller{at}eso.org

Jesper Sollerman
Stockholm Observatory
Sweden
Phone: +46 8 55378554
email: jesper{at}astro.su.se

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