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Bohdan Paczyński
Bohdan Paczyński
Born	8 February 1940; Vilnius, Lithuania
Died	19 April 2007 (aged 67); Princeton, New Jersey, United States
Nationality	Polish
Alma mater	University of Warsaw
Known for	Paczyński-Wiita potential
Awards	Karl Schwarzschild Medal (1981); Eddington Medal (1987); Heineman Prize (1992); Prize of the Foundation for Polish Science (1996); Henry Draper Medal (1997); Gold Medal of the Royal Astronomical Society (1999); Bruno Rossi Prize (2000); Marian Smoluchowski Medal (2000); Bruce Medal (2002); Henry Norris Russell Lectureship (2006);
	Scientific career
Fields	Astronomy
Institutions	Polish Academy of Sciences; Princeton University;
Doctoral advisor	Stefan Piotrowski; Włodzimierz Zonn;

Bohdan Paczyński or Bohdan Paczynski (8 February 1940 – 19 April 2007) was a Polish astronomer notable for his theories and work in the fields of stellar evolution, accretion discs, and gamma ray bursts. He is the recipient of the Eddington Medal (1987), the Henry Draper Medal (1997), the Gold Medal of the Royal Astronomical Society (1999), and the Order of Polonia Restituta (2007).

Life and career

Paczyński was born on 8 February 1940 in Vilnius, Lithuania,^[1] to a lawyer and a teacher of Polish literature. In 1945 his family chose to leave for Poland and settled in Kraków, and then in 1949 in Warsaw. At the age of 18, Paczyński published his first scientific article in Acta Astronomica. Between 1959 and 1962 he studied astronomy at the University of Warsaw. Two years later he received a doctorate under the tutelage of Stefan Piotrowski and Włodzimierz Zonn.

In 1962 Paczyński became a member of the Centre of Astronomy of the Polish Academy of Sciences, where he continued to work for nearly 20 years. In 1974 he received habilitation and in 1979 became a professor. Thanks to his works on theoretical astronomy, at the age of 36 he became the youngest member of the Polish Academy of Sciences.^[2]

In 1981 Paczyński visited the United States, where he gave a series of lectures at Caltech to former interns at his Warsaw-based institute. After the introduction of the Martial Law in Poland he decided to stay abroad.^[3] He was the Lyman Spitzer Jr. Professor of Astrophysics at Princeton University.^[4]

Paczyński was the initiator of time-domain sky surveys: Optical Gravitational Lensing Experiment (OGLE, led by Andrzej Udalski of Warsaw University Observatory)^[5] and All Sky Automated Survey (ASAS, created together with Grzegorz Pojmański).^[6]

His new methods of discovering cosmic objects and measuring their mass by using gravitational lenses gained him international recognition, and he is acknowledged for coining the term microlensing. He was also an early proponent of the idea that gamma-ray bursts are at cosmological distances.

In 1997, Paczyński hypothesized that hypernovae were supernovae from rapidly spinning stars.^[7]

His research concentrated on stellar evolution, gravitational lensing and gravitational microlensing, variable stars, gamma-ray bursts, and galactic structure.^[8]

In 1999, he became the first astronomer to receive all three major awards of the Royal Astronomical Society,^[9] by winning the Gold Medal, having won the Eddington Medal in 1987 and the George Darwin Lectureship in 1995.^[10]

He was honoured with the title of doctor honoris causa by Wrocław University in Poland (on June 29, 2005) and Nicolaus Copernicus University in Toruń in Poland (on September 22, 2006).

In January 2006 he was awarded Henry Norris Russell Lectureship of the American Astronomical Society, "for his highly original contributions to a wide variety of fields including advanced stellar evolution, the nature of gamma ray bursts, accretion in binary systems, gravitational lensing, and cosmology. His research has been distinguished by its creativity and breadth, as well as the stimulus it has provided to highly productive observational investigations".

He published over 200 scientific papers, which have been cited over 30,000 times by 2022, making him one of the most cited Polish scientists.^[11]

He died of brain cancer on April 19, 2007, in Princeton, New Jersey.^[12]

Honors

Awards

1981 – Karl Schwarzschild Medal of Astronomische Gesellschaft
1982 – Jurzykowski Prize conferred by the Alfred Jurzykowski Foundation in New York
1985 – Medaille de l’Adion
1987 – Eddington Medal of the Royal Astronomical Society for investigations of outstanding merit in theoretical astrophysics
1992 – Heineman Prize of the American Astronomical Society and American Institute of Physics
1995 – George Darwin Lectureship granted by the Royal Astronomical Society
1996 – Prize of the Foundation for Polish Science^[13]
1997 – Henry Draper Medal of the National Academy of Sciences^[14]
1998 – Antoinette de Vaucouleurs Memorial Lectureship and Medal by the University of Texas at Austin
1999 – Gold Medal of the Royal Astronomical Society^[15]
1999 – Marc Aaronson Memorial Lectureship of the University of Arizona Department of Astronomy^[16]
2000 – Bruno Rossi Prize of the High Energy Astrophysics division of the American Astronomical Society
2000 – Marian Smoluchowski Medal of the Polish Physical Society
2002 – Bruce Medal of the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy^[17]
2005 – Honorary degree of the University of Wrocław
2006 – Honorary degree of the Nicolaus Copernicus University in Toruń^[18]
2006 – Henry Norris Russell Lectureship the American Astronomical Society in recognition of a lifetime of excellence in astronomical research^[19]
2007 – Commander's Cross with Star of the Order of Polonia Restituta^[20]

Named after him

Asteroid 11755 Paczynski
One of ASAS-SN telescopes, located in CTIO, Chile
Bohdan Paczynski Visitor program, Princeton University. Past scholars include Joachim Wambsganss (2008), Yasushi Suto (2009), Steven Balbus (2010).
Bohdan Paczyński Medal of the Polish Astronomical Society

References

^ Draine, Bruce T.; Ostriker, Jeremiah P. (27 June 2007). "Bohdan Paczyński (1940–2007)". Nature. 447 (7148): 1064. doi:10.1038/4471064a. PMID 17597752. Retrieved 30 October 2023.
^ "Bohdan Paczyński" (in Polish). Gazeta Wyborcza. 10 October 2007. Archived from the original on 1 August 2012.
^ Thomas H. Maugh II (26 April 2007). "Bohdan Paczynski, 67; a key figure in the search for dark matter and planets". Los Angeles Times. Retrieved 30 October 2023.
^ Liz Fuller-Wright (1 November 2017). "Neutron star merger confirms decades of predictions by Princeton researchers". princeton.edu. Retrieved 30 October 2023.
^ Steven Schultz. "Paczynski 'OGLEs' the sky for answers to cosmic questions". pr.princeton.edu. Retrieved 30 October 2023.
^ "The All Sky Automated Survey and Bohdan Paczyński's idea of astronomy with small telescopes". researchgate.net. Retrieved 30 October 2023.
^ Paczynski (1997). GRBs as Hypernovae. Huntsville Gamma-Ray Burst Symposium. arXiv:astro-ph/9712123. Bibcode:1997astro.ph.12123P.
^ Bruce T. Draine. "Bohdan Paczyński (1940–2007)" (PDF). nasonline.org. Retrieved 30 October 2023.
^ Trimble, Virginia (20 July 2007). "Professor Bohdan Paczynski". Obituary. The Independent on Sunday. Retrieved 10 August 2008.^{[dead link‍]}
^ Spergel, David (7 July 2020). "Bohdan Paczynski (1940–2007)". Bulletin of the AAS. 39 (4). Bulletin of the American Astronomical Society. Archived from the original on 14 August 2021.
^ "Bohdan Paczyński". ui.adsabs.harvard.edu. Retrieved 28 October 2023.
^ Pearce, Jeremy (26 April 2007). "Bohdan Paczynski, Pioneering Astrophysicist, Dies at 67". The New York Times. Archived from the original on 5 June 2015.
^ "PROF. DR HAB. BOHDAN PACZYŃSKI – LAUREAT NAGRODY FNP 1996". fnp.org.pl (in Polish). Retrieved 28 October 2023.
^ "Henry Draper Medal". National Academy of Sciences. Archived from the original on 26 January 2013.
^ "Winners of the Gold Medal of the Royal Astronomical Society". Royal Astronomical Society. Archived from the original on 25 May 2011.
^ Dziembowski, W. (2007). "Bohdan Paczyński". Publications of the Astronomical Society of the Pacific. 119 (858): 836–841. doi:10.1086/521711. JSTOR 10.1086/521711.
^ "Past Winners of the Catherine Wolfe Bruce Gold Medal". Astronomical Society of the Pacific. Archived from the original on 21 July 2011.
^ "DOKTORZY HONORIS CAUSA". umk.pl (in Polish). Retrieved 30 October 2023.
^ "Grants, Prizes and Awards". American Astronomical Society. Archived from the original on 22 December 2010.
^ "Prezydent RP odznaczył pośmiertnie Bohdana Krzysztofa Paczyńskiego" [The President of the Republic of Poland posthumously awarded Bohdan Krzysztof Paczyński] (in Polish). 9 July 2007. Archived from the original on 7 March 2017.

External links

[1] Draine, Bruce T.; Ostriker, Jeremiah P. (27 June 2007). "Bohdan Paczyński (1940–2007)". Nature. 447 (7148): 1064. doi:10.1038/4471064a. PMID 17597752. Retrieved 30 October 2023.

[GW-2] "Bohdan Paczyński" (in Polish). Gazeta Wyborcza. 10 October 2007. Archived from the original on 1 August 2012.

[3] Thomas H. Maugh II (26 April 2007). "Bohdan Paczynski, 67; a key figure in the search for dark matter and planets". Los Angeles Times. Retrieved 30 October 2023.

[4] Liz Fuller-Wright (1 November 2017). "Neutron star merger confirms decades of predictions by Princeton researchers". princeton.edu. Retrieved 30 October 2023.

[5] Steven Schultz. "Paczynski 'OGLEs' the sky for answers to cosmic questions". pr.princeton.edu. Retrieved 30 October 2023.

[6] "The All Sky Automated Survey and Bohdan Paczyński's idea of astronomy with small telescopes". researchgate.net. Retrieved 30 October 2023.

[paczynski1997-7] Paczynski (1997). GRBs as Hypernovae. Huntsville Gamma-Ray Burst Symposium. arXiv:astro-ph/9712123. Bibcode:1997astro.ph.12123P.

[8] Bruce T. Draine. "Bohdan Paczyński (1940–2007)" (PDF). nasonline.org. Retrieved 30 October 2023.

[9] Trimble, Virginia (20 July 2007). "Professor Bohdan Paczynski". Obituary. The Independent on Sunday. Retrieved 10 August 2008.^{[dead link‍]}

[10] Spergel, David (7 July 2020). "Bohdan Paczynski (1940–2007)". Bulletin of the AAS. 39 (4). Bulletin of the American Astronomical Society. Archived from the original on 14 August 2021.

[11] "Bohdan Paczyński". ui.adsabs.harvard.edu. Retrieved 28 October 2023.

[nytobit-12] Pearce, Jeremy (26 April 2007). "Bohdan Paczynski, Pioneering Astrophysicist, Dies at 67". The New York Times. Archived from the original on 5 June 2015.

[13] "PROF. DR HAB. BOHDAN PACZYŃSKI – LAUREAT NAGRODY FNP 1996". fnp.org.pl (in Polish). Retrieved 28 October 2023.

[Draper-14] "Henry Draper Medal". National Academy of Sciences. Archived from the original on 26 January 2013.

[15] "Winners of the Gold Medal of the Royal Astronomical Society". Royal Astronomical Society. Archived from the original on 25 May 2011.

[16] Dziembowski, W. (2007). "Bohdan Paczyński". Publications of the Astronomical Society of the Pacific. 119 (858): 836–841. doi:10.1086/521711. JSTOR 10.1086/521711.

[17] "Past Winners of the Catherine Wolfe Bruce Gold Medal". Astronomical Society of the Pacific. Archived from the original on 21 July 2011.

[18] "DOKTORZY HONORIS CAUSA". umk.pl (in Polish). Retrieved 30 October 2023.

[AAS-19] "Grants, Prizes and Awards". American Astronomical Society. Archived from the original on 22 December 2010.

[20] "Prezydent RP odznaczył pośmiertnie Bohdana Krzysztofa Paczyńskiego" [The President of the Republic of Poland posthumously awarded Bohdan Krzysztof Paczyński] (in Polish). 9 July 2007. Archived from the original on 7 March 2017.

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PROFILPELAJAR.COM

Bohdan Paczyński

Life and career

Honors

See also

References

External links

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