Sanjaya Hettiarachchi
Majoring in Astrophysics
Fulbright College of Arts and Sciences at the University of Arkansas, Class of 2027
From Fayetteville, Arkansas
Fulbright College of Arts and Sciences at the University of Arkansas, Class of 2027
From Fayetteville, Arkansas
I am a PhD graduate student who has a strong passion about Astrophysics, Quantum Physics, Astrobiology, and Astronautics. My research work is mainly based on multiwavelength galactic spiral structure analysis, galaxy evolution, galaxy morphology studies, density wave theory, black hole masses, and dark matter halo masses. Moreover, I develop scaling relations between pitch angle of spiral galaxies and its black hole and dark matter halo masses using multi-wavelength image data.
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Sanjaya Hettiarachchi was recognized for earning a spot on the Dean's List
Deans list, Faculty of Science, University of Kelaniya, Sri Lanka
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Sanjaya Hettiarachchi was recognized for graduating
Graduated from University of Kelaniya, Sri Lanka with a B.Sc. (Honors) in Mathematical Physics
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Sanjaya Hettiarachchi was recognized for enrolling
PhD in Astrophysics at the University of Arkansas with graduate teaching assistantship award
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Sanjaya Hettiarachchi was recognized for earning an academic award
Physical Science Award in Physics (for the best undergraduate research of the year), presented at the 78th annual session of the Sri Lankan Association for the Advancement of Science (SLAAS)
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Sanjaya Hettiarachchi was recognized for earning an academic award
Chambliss Student Award Finalist- American Astronomical Society 243
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European Astronomical Society
Member of the European Astronomical Society
Fulbright College of Arts and Sciences at the University of Arkansas
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American Astronomical Society
Member of the American Astronomical Society
Fulbright College of Arts and Sciences at the University of Arkansas
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Royal Astronomical Society
Fellow of the Royal Astronomical Society (FRAS)
Fulbright College of Arts and Sciences at the University of Arkansas
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Institute of Physics
Member of the Institute of Physics (MInstP)
Fulbright College of Arts and Sciences at the University of Arkansas
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American Physical Society
Member of the American Physical Society
Fulbright College of Arts and Sciences at the University of Arkansas
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The Planetary Society
Mariner Member of the Planetary Society
Fulbright College of Arts and Sciences at the University of Arkansas
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Graduate Assistant at University of Arkansas Fayetteville
August 2024 - Present
Teaching Assistant at University of Kelaniya, Sri Lanka
Conducting tutorial discussions on the Electromagnetic Theory course module for third-year undergraduates at the Electricity & Magnetism Laboratory, demonstrating laboratory classes and proctoring examinations for first and third-year undergraduates, grading laboratory reports and tutorials of first and third-year undergraduates
July 2022 - May 2023
Exploring MBH–P scaling relations in spiral galaxies: a comparative analysis of inner and outer arm structures
September 2024 -
Articles
Theoretical Study of Density Wave Theory & Standard Scaling Relations for Spiral Galaxies with Inner & Outer Arm Structures
New Orleans, LA
January 2024 -
Presentations
Theoretical study of density wave theory using pitch angle measurements of spiral galaxies
This research work verified density wave theory predictions using pitch angle measurements corresponding to six wavebands, namely 3.6 μm, 8.0 μm, B-band, Hα, HI, and CO. Black hole and dark matter halo masses were calculated for 3.6 μm waveband. Novel findings and equations were proposed related to galaxies with inner arms only and galaxies with both inner and outer arms.
July 2022 -
Research Projects
Theoretical study of density wave theory using pitch angle measurements of spiral galaxies
American Astronomical Society Meeting #241, id. 279.01. Bulletin of the American Astronomical Society, Vol. 55, No. 2 e-id 2023n2i279p01 (Bibcode: 2023AAS...24127901H)
Publications
Scaling relations between pitch angle-black hole mass and pitch angle-dark matter halo mass
Currently investigating the influence of inner and outer arms on the dark matter halo mass and black hole mass of
galaxies with both inner and outer arms. More generalized relations between pitch angle-black hole mass and
pitch angle-dark matter halo mass are proposed.
Research Projects
Density Wave Theory and Black Hole Mass/Dark Matter Halo Mass Scaling Relations of Spiral Galaxies
Mid-American Regional Astrophysics Conference (2023), Benedictine College, Atchison, kansas
Conferences
Theoretical study of density wave theory using pitch angle measurements of spiral galaxies
240th American Astronomical Society (AAS) meeting in Pasadena, California, in June 2022
Conferences
Theoretical study of density wave theory using pitch angle measurements of spiral galaxies
239th American Astronomical Society (AAS) meeting in Salt Lake City, UT, in January 2022
Conferences
A Theoretical Study of Density Wave Theory Using Pitch Angle Measurements of Spiral Galaxies
iPoster presentation with novel findings, presented at the 241st annual meeting of the American Astronomical Society, Seattle, Washington, in January 2023.
Presentations