To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

4,5
Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
Languages
Recent
Show all languages
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.
.
Leo
Newton
Brights
Milds

Jan van Paradijs

From Wikipedia, the free encyclopedia

Jan van Paradijs
Jan van Paradijs at work at NASA/Marshall in early 1993 during BATSE observations aboard the Compton Gamma Ray Observatory
Jan van Paradijs in 1993
Born(1946-06-09)9 June 1946
Haarlem, Netherlands
Died2 November 1999(1999-11-02) (aged 53)[2]
Amsterdam, Netherlands
NationalityDutch
Alma materUniversity of Amsterdam
Spouse
(m. 1992)
[3]
AwardsBruno Rossi Prize (1998)[1]
Scientific career
FieldsAstrophysics
Institutions

Johannes A. van Paradijs (9 June 1946 – 2 November 1999) was a Dutch high-energy astrophysicist. He is best known for discovering the first optical afterglow of a gamma-ray burst, GRB 970228, in February 1997, together with two of his students,[3] and for establishing that gamma-ray bursts are extragalactic events. He was married to the astrophysicist Chryssa Kouveliotou.

YouTube Encyclopedic

  • 1/2
    Views:
    1 637
    477
  • DE LAATSTE PERSOON DIE HET PARADIJS ZAL BETREDEN - ZEER EMOTIONEEL HD YouTube
  • Sheikh Sa'd Ash-Shathrie - Mensen van het Allerhoogste Paradijs

Transcription

Research

Van Paradijs determined the first mass of a neutron star, the X-ray pulsar Vela X-1 in 1975. In 1978 he showed that X-ray bursters are neutron stars in binary systems. Using spectroscopic mapping, he was the first to spatially resolve an accretion disk.[2]

Academic career

Van Paradijs obtained his PhD at the University of Amsterdam, Netherlands, in 1975, working on cool giant stars. His thesis was entitled "Studies of line spectra of G- and K-type stars"[4] and his supervisor was David Koelbloed. Afterwards he started working on X-ray binaries. In 1988 he was appointed full professor at the University of Amsterdam, and later he worked part-time at the University of Alabama in Huntsville, U.S. He published over 400 scientific papers, including many with long-time collaborator Walter Lewin of MIT.[2]

The minor planet 9259 Janvanparadijs was named after him.

References

  1. ^ "HEAD AAS Rossi Prize Winners". American Astronomical Society. Retrieved October 18, 2016.
  2. ^ a b c van den Heuvel, Ed. "Jan A. van Paradijs (1946 – 1999)". American Astronomical Society. Archived from the original on October 19, 2016. Retrieved October 18, 2016.
  3. ^ a b Glanz, James (November 4, 1999). "Johannes van Paradijs, 53; Helped Explain Gamma Rays". The New York Times. Retrieved October 18, 2016.
  4. ^ "Physics Tree - Jan A. van Paradijs". academictree.org. Retrieved 2020-04-26.

External links

This page was last edited on 12 January 2023, at 15:33
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.