2010 Zeldovich Medal for Vito Sguera
On 01 April 2010, the Committee on Space Research (COSPAR) has
decided to present the 2010 Zeldovich Medal for COSPAR Scientific
Commission E (Research in Astrophysics from Space) to Dr. Vito Sguera
(Istituto di Astrofisica Spaziale & Fisica Cosmica, Bologna,
Italy). The Zeldovich Medal is given to young scientists who have
demonstrated excellence and achievement in their field of research.
Zeldovich medals are conferred by COSPAR and the Russian Academy of
Sciences and honor the memory of the distinguished astrophysicist
Academician Yakov B. Zeldovich. The presentation of the award will
take place at the inaugural ceremony of the 38th COSPAR scientific
assembly in Bremen (19 July 2010).
Since its launch in 2002, the INTEGRAL observatory has played a key
role in discovering many new high mass X-ray binaries thanks to its
large field of view, continuous monitoring of the galactic plane and
good sensitivity. The majority of these systems turned out to be
persistent supergiant high mass X-ray binaries that escaped previous
detection because of their very obscured nature. The remaining ones,
named supergiant fast X-ray transients (SFXTs), were missed before
because of the very low level of quiescent X-ray luminosities
(~1032 -1033 erg s-1), occasionally
interrupted by fast X-ray flares lasting typically less than a day and
reaching peak luminosities of ~1036 erg s-1.
This peculiar transient behaviour has never been seen before from
classical persistent SGXBs, which are characterised by X-ray
luminosities in the range 1036-1038 erg
s-1 with a few of them rarely displaying flaring activity
on a timescale of a few hours. The work by Dr Vito Sguera is
contributing significantly to our knowledge on the supergiant fast
Congratulations from the INTEGRAL team at ESA.
27 April 2010
Last updated:Monday, 03-May-2010 17:41:55 EDT .