>Citation bot at 19:15, 25 December 2020

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{{short description|Indian astronomer}}
{{Use dmy dates|date=July 2019}}
{{Infobox scientist
| honorific_prefix =
| name = Anil Kumar Das
| native_name =
| image = Anil Kumar Das.jpg
| caption = Prof. Anil Kumar Das
| honorific_suffix =
| birth_date = {{Birth date|df=yes|1902|2|1}}
| birth_place = [[Chinsura]], [[Hooghly district|Hooghly]], [[West Bengal]], [[India]]
| death_date = {{Death date and age|df=yes|1961|2|18|1902|2|1}}
| death_place = [[Hyderabad]], [[India]]
| alma_mater = {{Plainlist|
* Chuadanga High School
* Berhampore College
* [[Presidency College, Kolkata|Presidency College]]
* [[University of Calcutta]]
* [[University of Paris]]
* [[Laboratoire de Physique des Solides]], Paris, (1925-26)
}}
| fields = * [[Physics]]
* [[Astronomy]]
* [[Solar physics]]
| workplaces = {{Plainlist|
* [[Laboratoire de Physique des Solides]], Paris
* Institut für theoretische physik, Göttingen
* Geophysikalisches Institut, Göttingen
* [[Solar Physics Observatory]], Cambridge, 1934
* [[India Meteorological Department|Indian Meteorological Service]], (1930 - 1937)
* Upper Air Observatory, Agra
* Assistant director of [[Kodaikanal Solar Observatory]], (1937 - 1946)
* Director of [[Kodaikanal Solar Observatory]], (1946 - 1960)
* Professor of astronomy in [[Osmania University]], 1961
* Director of the [[Nizamia Observatory]], [[Hyderabad]], 1961
}}
| doctoral_advisor =
| academic_advisors = {{Plainlist|
* [[Prasanta Chandra Mahalanobis]]
* [[Charu Chandra Bhattacharya]]
* [[Snehamoy Dutta]]
}}
| known_for = * [[helioseismology]] investigations
| awards = {{Plainlist|
* Fellow of [[Royal Astronomical Society]], 1935
* Fellow of the ''National Institute of Science'', now known as [[Indian National Science Academy]], 1943
* [[Padma Shri]], (1960)
* [[Das (crater)]] by [[International Astronomical Union|IAU]]
}}
| signature = Sign of AKD.svg
}}
'''Anil Kumar Das''' [[Royal Astronomical Society|FRAS]], [[Indian National Science Academy|FNI]] (1 February 1902 - 18 February 1961) was an [[India]]n [[scientist]], [[astronomer]]. During the [[International Geophysical Year]], observatories in [[Madrid]], [[India]], and [[Manila]] were responsible for monitoring solar effects. The [[Kodaikanal Solar Observatory]] in [[South India]] performed this monitoring using their recently built [[Kodaikanal Solar Observatory#Solar Tunnel Telescope|solar tunnel telescope]]. Das was the director of the Kodaikanal observatory at this time. In 1960 he was responsible for installing a tower/tunnel telescope at the facility that would be used to perform some of the first helioseismology investigations.<ref name="bappu">{{cite journal|last=Bappu|first=M.K.V.|date=June 2000|title=The Kodaikanal Observatory - A Historical Account |journal= Journal of Astrophysics and Astronomy|publisher=Indian Academy of Sciences|location=Bangalore|volume=21|issue=3–4|pages=105|url=http://articles.adsabs.harvard.edu//full/seri/JApA./0021//0000105.000.html|doi=10.1007/bf02702374|bibcode=2000JApA...21..103.|s2cid=189916860}}</ref> The crater [[Das (crater)|Das]] on the [[Far side (Moon)|far side]] of the [[Moon]] is named after him.<ref name=":0" />

==Biography==
[[Image:Kodaikanal Solar Observatory-b.jpg|thumb|left|Solar Tunnel Telescope at Kodaikanal]]
After graduating ( [[Master of Science]] ) from the [[University of Calcutta]], he studied [[spectroscopy]] with [[Charles Fabry]] at the Sorbonne in [[Paris]]. After obtaining his doctorate he was in Göttingen where he worked with [[Max Born]] at the Institut für Theoretische Physik and subsequently with Gustav Augenheister at the Geophysikalisches Institut and for a short period at the [[Solar Physics Observatory]] in [[Cambridge]] . He later worked at the [[Indian Meteorological Department]] in 1930 and then moved to the [[Kodaikanal observatory]] in 1937 as assistant director and director since 1946 and where he remained until his retirement in 1960.<ref name=":1">{{Cite journal|last=Mitra|first=S.N.|date=July 1961|title=Obituary: Dr. A.K. Das (1902-1961)|url=https://prints.iiap.res.in/bitstream/2248/1704/1/akd3.pdf|journal=Journal of the IETE|volume=7|issue=4|pages=1–6|hdl=2248/1704}}</ref><ref name=":2">{{Cite journal|last=Bappu|first=M.K.V|date=March 1961|title=Obituary notices: Anil Kumar Das|url=https://prints.iiap.res.in/bitstream/2248/1701/3/akd4.pdf|journal=The Quarterly Journal of the Royal Astronomical Society|volume=2|issue=4|pages=278–279|hdl=2248/1701}}</ref>

==Scientific contributions==
Most of his scientific contributions were in the field of [[solar physics]] mainly as an experimenter in the [[Spectrophotometry|spectrophotometric study]] of sunspots and the [[chromosphere]] . He contributed significantly to the development of the equipment present at the [[Kodaikanal Observatory]] and to the growth of numerous young researchers.<ref name=":1" />

==Award and Honors==
* Fellow of the [[Royal Astronomical Society]] in 1935
* Fellow of the [[National Institute of Sciences of India]]
* The lunar crater Das (crater)<ref name=":0">{{GPN|1421|Cratere Das}}</ref> dedicated to him by [[International Astronomical Union|IAU]]
* [[Padma Shri]] by [[Indian government]]<ref name=":2" />

==References==
{{Reflist}}

==External links==
* [https://web.archive.org/web/20051120040908/http://www.vigyanprasar.com/dream/dec99/article1.htm Indian Astronomy : From Jantar-Mantar to Kavalur]

{{Authority control}}

{{DEFAULTSORT:Das, Anil Kumar}}
[[Category:1902 births]]
[[Category:1961 deaths]]
[[Category:20th-century Indian astronomers]]
[[Category:Bengali Hindus]]
[[Category:Bengali people]]
[[Category:Padma Shri Award]]
[[Category:Bengali physicists]]
[[Category:Presidency University, Kolkata]]
[[Category:University of Calcutta]]
[[Category:Indian National Science Academy]]

{{astronomer-stub}}
{{india-scientist-stub}}

Anil Kumar Das - Revision history

>Citation bot at 19:15, 25 December 2020