Souvik Bose

Last updated

Dr.
Souvik Bose
F.R.A.S
Born
Souvik Bose

(1991-01-09) 9 January 1991 (age 34)
Alipurduar, West Bengal, India
Nationality India
Citizenship India
Education UIT Burdwan
Alma mater University of Burdwan (B.E.)
IIA Bangalore (M.Tech)
University of Oslo (Ph.D)
Scientific career
Fields Solar Physics
Theoretical Physics
Electronics Engineering
Machine Learning
Institutions NASA
Lockheed Martin
SETI Institute
Thesis On the dynamics of spicules and mass flows in the solar atmosphere  (2021)
Doctoral advisor Luc Rouppe van der Voort
Website Souvik Bose

Souvik Bose is an Indian research scientist, astrophysicist, and electronics engineer who works at Lockheed Martin Solar & Astrophysics Lab, in Palo Alto, California, in collaboration with NASA Ames Research Center. He is known for his work on Solar moss [1] which was discovered by NASA's TRACE spacecraft in 1999, appearing as sponge-like patches in extreme ultraviolet light in the Sun's atmosphere. He is a fellow of the Royal Astronomical Society. [2] [3] [4]

Academic career

Souvik was born on 9 January 1991 in Guwahati, Assam, India. After completing his schooling in Alipurduar, he began studying Electronics & Communication Engineering at the UIT Burdwan in 2010. [5] He completed his Bachelor of Engineering degree with first-class honours in 2014 and commenced post-graduate studies at IIA Bangalore, where he obtained his M.Tech in Astronomical Instrumentation and Solar Physics. His master's thesis was titled High Precision full Stokes Spectropolarimetry of the Sun-as-a-Star: Instrument Design Aspects [6] . In 2017, he was awarded the opportunity to pursue a doctorate in Astrophysics at University of Oslo. He completed his Ph.D. in 2021. [7] [8]

Scientific career

His work on solar spicules has provided significant insights into the multi-thermal nature of spicular downflows. This research contributes to resolving the long-standing challenge of the coronal heating problem, a central question in solar physics. [9] . Bose’s research integrates data from NASA's Solar Dynamics Observatory(SDO) and other ground-based facilities to explore the behaviour and properties of the solar chromosphere and transition region. [10] [11]

In his work with NASA’s Ames Research Center and Lockheed Martin, Bose has focused on developing models to simulate solar atmospheric dynamics. His studies on solar spicules have enhanced our understanding of solar wind origins, particularly the dynamics of spicules, which contribute to the mass and energy flux of the solar corona. [12] [13] [14]

He has contributed to solar physics by applying machine learning techniques to improve data analysis methods, such as using U-Net [15] [16] to create virtual observations of the solar corona. [17] [18] . His innovations have helped reduce the telemetry needs of solar missions such as SDO and extended the capabilities of future heliophysics missions. [19] [20]

Related Research Articles

<span class="mw-page-title-main">NGC 6240</span> Galaxy merger remnant in the constellation Ophiuchus

NGC 6240, also known as the Starfish Galaxy, is a nearby ultraluminous infrared galaxy (ULIRG) in the constellation Ophiuchus. It was discovered by French astronomer Édouard Stephan on 12 July 1871.

<span class="mw-page-title-main">Triangulum Galaxy</span> Spiral galaxy in the constellation Triangulum

The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. With the D25 isophotal diameter of 18.74 kiloparsecs (61,100 light-years), the Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way.

<span class="mw-page-title-main">Supermassive black hole</span> Largest type of black hole

A supermassive black hole is the largest type of black hole, with its mass being on the order of hundreds of thousands, or millions to billions, of times the mass of the Sun (M☉). Black holes are a class of astronomical objects that have undergone gravitational collapse, leaving behind spheroidal regions of space from which nothing can escape, including light. Observational evidence indicates that almost every large galaxy has a supermassive black hole at its center. For example, the Milky Way galaxy has a supermassive black hole at its center, corresponding to the radio source Sagittarius A*. Accretion of interstellar gas onto supermassive black holes is the process responsible for powering active galactic nuclei (AGNs) and quasars.

<span class="mw-page-title-main">Galactic Center</span> Rotational center of the Milky Way galaxy

The Galactic Center is the barycenter of the Milky Way and a corresponding point on the rotational axis of the galaxy. Its central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, a compact radio source which is almost exactly at the galactic rotational center. The Galactic Center is approximately 8 kiloparsecs (26,000 ly) away from Earth in the direction of the constellations Sagittarius, Ophiuchus, and Scorpius, where the Milky Way appears brightest, visually close to the Butterfly Cluster (M6) or the star Shaula, south to the Pipe Nebula.

<span class="mw-page-title-main">Sagittarius A*</span> Supermassive black hole at the center of the Milky Way

Sagittarius A*, abbreviated as Sgr A*, is the supermassive black hole at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, visually close to the Butterfly Cluster (M6) and Lambda Scorpii.

<span class="mw-page-title-main">Solar spicule</span> Jet of plasma in the Suns chromosphere

In solar physics, a spicule, also known as a fibril or mottle, is a dynamic jet of plasma in the Sun's chromosphere about 300 km in diameter. They move upwards with speeds between 15 and 110 km/s from the photosphere and last a few minutes each before falling back to the solar atmosphere. They were discovered in 1877 by Angelo Secchi, but the physical mechanism that generates them is still hotly debated.

<span class="mw-page-title-main">Messier 88</span> Galaxy in the constellation Coma Berenices

Messier 88 is a spiral galaxy about 50 to 60 million light-years away from Earth in the constellation Coma Berenices. It was discovered by Charles Messier in 1781.

<span class="mw-page-title-main">NGC 1300</span> Galaxy in the constellation Eridanus

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<span class="mw-page-title-main">NGC 5548</span> Type I Seyfert galaxy in the constellation Boötes

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<span class="mw-page-title-main">MS 0735.6+7421</span> Galaxy cluster in the constellation Camelopardalis

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<span class="mw-page-title-main">Markarian 231</span> Seyfert galaxy in the constellation Ursa Major

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<span class="mw-page-title-main">NGC 7674</span> Galaxy located in the constellation Pegasus

NGC 7674 is a spiral galaxy located in the constellation Pegasus. It is located at a distance of about 350 million light years from Earth, which, given its apparent dimensions, means that NGC 7674 is about 125,000 light years across. It was discovered by John Herschel on August 16, 1830.

<span class="mw-page-title-main">NGC 6951</span> Galaxy in the constellation Cepheus

NGC 6951 is a barred spiral galaxy located in the constellation Cepheus. It is located at a distance of about 75 million light-years from Earth, which, given its apparent dimensions, means that NGC 6951 is about 100,000 light-years across. It was discovered by Jérôme Eugène Coggia in 1877 and independently by Lewis Swift in 1878.

<span class="mw-page-title-main">NGC 1460</span> Galaxy in the constellation Eridanus

NGC 1460 is a barred lenticular galaxy with a peanut-shaped bar approximately 65 million light-years away from Earth in the constellation of Eridanus. It was discovered by astronomer John Herschel on November 28, 1837. It is a member of the Fornax cluster.

<span class="mw-page-title-main">NGC 1369</span> Galaxy of the Fornax Cluster

NGC 1369 is a barred lenticular galaxy located 59 million light years away in constellation of Eridanus. The galaxy was discovered by astronomer Julius Schmidt on January 19, 1865, and is a member of the Fornax Cluster. NGC 1369 is a host to a supermassive black hole with an estimated mass of 1.8 million solar masses.

<span class="mw-page-title-main">NGC 3998</span> Galaxy in the constellation of Ursa Major

NGC 3998 is a lenticular galaxy located in the constellation Ursa Major. It was discovered on April 14, 1789, by the astronomer William Herschel. At a distance of 45 million light-years, it is located relatively nearby, making it a well-studied object.

<span class="mw-page-title-main">SDSS J1430+2303</span> Galaxy with an active nucleus

SDSS J1430+2303 is a galaxy with an active galactic nucleus that has been claimed to be undergoing a periodic brightness variability that is speeding up. One explanation for the purported behavior is that it could be a supermassive black hole binary. Initial trajectory models suggested the pair could be merging either before the end of 2022 or, alternatively, no later than 2025.

<span class="mw-page-title-main">Alcyoneus (galaxy)</span> Large radio galaxy

Alcyoneus is a low-excitation, Fanaroff–Riley class II radio galaxy located 3.5 billion light-years from Earth, with host galaxy SDSS J081421.68+522410.0. It is located in the constellation Lynx and it was discovered in Low-Frequency Array (LOFAR) data by a team of astronomers led by Martijn Oei. As of 2024, it has the second-largest extent of radio structure of any radio galaxy identified, with lobed structures spanning 5 megaparsecs across, described by its discoverers at the time as the "largest known structure of galactic origin." It has since been superseded by another radio galaxy, Porphyrion, with lobed structures of 7 megaparsecs.

<span class="mw-page-title-main">Solar moss</span>

Solar moss is a distinctive feature in the Sun's atmosphere discovered by NASA's Transition Region and Coronal Explorer (TRACE) spacecraft in 1999. It appears as bright, "sponge-like" patches in extreme ultraviolet light, occurring 1,000-3,000 miles above the Sun's visible surface at the base of hot coronal loops in active regions.

References

  1. ↑ Bose, Souvik; De Pontieu, Bart; Hansteen, Viggo; Sainz Dalda, Alberto; Savage, Sabrina; Winebarger, Amy (June 2024). "Chromospheric and coronal heating in an active region plage by dissipation of currents from braiding". Nature Astronomy. 8 (6): 697–705. arXiv: 2211.08579 . Bibcode:2024NatAs...8..697B. doi: 10.1038/s41550-024-02241-8 . ISSN   2397-3366.
  2. ↑ "NASA's Young Researcher from Alipurduar". AajTak. Retrieved 15 January 2025.
  3. ↑ "Alipurduar Scientist Souvik Basu Gets Call from NASA". Get Bengal. Retrieved 15 January 2025.
  4. ↑ "FRAS". LinkedIn. Retrieved 15 January 2025.
  5. ↑ "Kerala-Bengal Sunshine Story". Mathrubhumi. 29 April 2024. Retrieved 15 January 2025.
  6. ↑ "High Precision Full Stokes Spectropolarimetry of the Sun-as-a-Star: Instrument Design Aspects". ResearchGate. Retrieved 15 January 2025.
  7. ↑ "Alipurduar Students Get Chance to Study at NASA". ETV Bharat. 14 May 2019. Retrieved 15 January 2025.
  8. ↑ "NASA Opportunity for West Bengal's Alipurduar Boy". Ei Samay. 15 May 2019. Retrieved 15 January 2025.
  9. ↑ "Article on Supermassive Black Holes" (PDF). Astronomy & Astrophysics. Retrieved 15 January 2025.
  10. ↑ Bose, Souvik; Joshi, Jayant; Henriques, Vasco M. J. (March 2021). "Abs on Quenching Mechanisms in Galaxies". Astronomy & Astrophysics. 647: A147. doi:10.1051/0004-6361/202040014 . Retrieved 15 January 2025.
  11. ↑ "Souvik Bose of Alipurduar Goes to NASA for Research". Ei Muhurte. 15 November 2021. Retrieved 15 January 2025.
  12. ↑ "Supermassive Black Holes and Star Formation". doi: 10.3847/1538-4357/aaccf1 .{{cite web}}: Missing or empty |url= (help)
  13. ↑ Bose, Souvik; Henriques, Vasco M. J.; Pereira, Tiago M. D. (July 2019). "Star Formation Quenching in Galaxies". Astronomy & Astrophysics. 627: A46. doi:10.1051/0004-6361/201935289 . Retrieved 15 January 2025.{{cite journal}}: Missing |author3= (help)
  14. ↑ "New Insights into Galaxy Evolution" (PDF). Astronomy & Astrophysics. Retrieved 15 January 2025.
  15. ↑ "The Supermassive Black Hole Influence". doi: 10.3847/1538-4357/ac867b .{{cite web}}: Missing or empty |url= (help)
  16. ↑ Mathur, Harsh; Joshi, Jayant; Nagaraju, K.; Bose, Souvik (December 2022). "Galaxies and Black Hole Influence in Star Formation". Astronomy & Astrophysics. 668: A153. doi:10.1051/0004-6361/202244332 . Retrieved 15 January 2025.{{cite journal}}: Missing |author4= (help)
  17. ↑ Salvatelli, Valentina; Neuberg, Brad; Dos Santos, Luiz F. G.; Bose, Souvik; Cheung, Mark C. M.; Janvier, Miho; Jin, Meng; Gal, Yarin; Güneş Baydın, Atılım (2022). "Research on Black Hole Activity". Zenodo. Bibcode:2022zndo...6954828S. doi:10.5281/zenodo.6954828 . Retrieved 15 January 2025.
  18. ↑ Salvatelli, Valentina; Bose, Souvik; Neuberg, Brad; dos Santos, Luiz F. G.; Cheung, Mark; Janvier, Miho; Atilim Gunes Baydin; Gal, Yarin; Jin, Meng (2019). "SNITCH: Research on Star Formation". arXiv: 1911.04006 [astro-ph.SR].
  19. ↑ Bose, Souvik; De Pontieu, Bart; Hansteen, Viggo; Sainz Dalda, Alberto; Savage, Sabrina; Winebarger, Amy (June 2024). "Observations on Solar Wind Heating". Nature Astronomy. 8 (6): 697–705. Bibcode:2024NatAs...8..697B. doi:10.1038/s41550-024-02241-8 . Retrieved 15 January 2025.
  20. ↑ "NASA Observations on Moss and the Sun". NASA Science. 16 April 2024. Retrieved 15 January 2025.
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