Abinash Das.Physics · Georgia Institute of Technology
Curriculum vitae

CV.

Ph.D. Student in Physics, School of Physics, Georgia Institute of Technology · Center for Relativistic Astrophysics
adas406@gatech.edu · github.com/abinashphys

Education

Ph.D. in Physics, in progress

Fall 2024–Present

Georgia Institute of Technology

  • Co-advisors: David R. Ballantyne and Tamara Bogdanović (Summer 2026–Present).
  • Research focus: Radio emission and detectability of dual active galactic nuclei.

M.S. in Physics, non-thesis option

Summer 2025

Georgia Institute of Technology

  • Completed during doctoral study; M.S. major GPA: 3.80/4.00.

B.S. in Physics and Astronomy

August 2020–May 2024

University of Arizona

Academic Affiliation

Center for Relativistic Astrophysics

Summer 2026–Present

Georgia Institute of Technology

Peer-Reviewed Publications

P. Abdolghader, R. Jafari, A. Das, B. Banerjee, E. P. Duchrist Crews, R. Trebino. Optics, 7(3), 42. doi:10.3390/opt7030042

Research Experience

Graduate Researcher, Center for Relativistic Astrophysics, Georgia Institute of Technology

Co-advisors: David R. Ballantyne (PI) and Tamara Bogdanović (Co-PI) · Funding: NSF AST-2407658, “The Population and Evolution of Dual AGNs at Radio Wavelengths: Predictions for the ngVLA”

  • Develop a theoretical and computational framework for predicting radio emission from dual AGNs in post-merger galaxies, with applications to searches for SMBH pairs.
  • Connect host-galaxy and SMBH properties from IllustrisTNG with pre-existing orbital-evolution calculations to model the evolving accretion and radio-emission properties of the pair.
  • Model accretion from magnetized gas and relativistic jet power, considering the dependence on the black holes’ motion and the surrounding galactic environment.
  • Calculate radio synchrotron spectra, including synchrotron self-absorption, to predict the fluxes and spectral properties of the two AGN cores.
  • Investigate how radio detectability depends on projected separation, redshift, host-galaxy properties, and observing frequency, toward predictions for next-generation Very Large Array (ngVLA) surveys.

Graduate Researcher, School of Physics, Georgia Institute of Technology

Advisor: Rick Trebino

  • Co-wrote the peer-reviewed paper.
  • Wrote and implemented the computational code for computing runs in the differences between measured and retrieved FROG traces, used for the statistical characterization of pulse-train instability.
  • Worked on the mathematical and analytical proofs in the paper, including Appendix A on the invariance of the weighted runs statistic under time–bandwidth-preserving rescaling.

Gamma-Ray Bursts as Standard Candles

September 2023–January 2024

Undergraduate Researcher, Theoretical Cosmology, University of Arizona

Advisor: Fulvio Melia

  • Investigated the use of gamma-ray bursts as standard candles for extending the Hubble diagram beyond the redshift range accessible to conventional distance indicators.
  • Incorporated the Platinum and LGRB95 gamma-ray-burst data sets into the analysis.

Intrinsic Alignments and Weak Lensing

April 2022–January 2024

Undergraduate Researcher, Arizona Cosmology Lab, University of Arizona

Advisor: Tim Eifler

  • Investigated intrinsic galaxy alignments using the tidal alignment and tidal torquing (TATT) model in the context of weak gravitational lensing.
  • Implemented algorithms to generate synthetic data for predictions of Large Synoptic Survey Telescope (LSST) observations.
  • Examined model parameters through statistical analysis and visualization, assessing their effects on cosmic shear and galaxy–galaxy lensing signals.

Summer Researcher, Asteroids Laboratory, University of Arizona

Advisor: Jekan Thanga

  • Developed a CubeSat mission concept targeting the atmosphere of Venus, including instrument selection and mission-feasibility assessment.
  • Designed a hybrid power-system concept for a proposed scientific base on Deimos, considering energy supply for an extraterrestrial environment.

Selected Academic Projects

Cosmological Initial Conditions: CMB Power Spectra and the Zel'dovich Approximation

Fall 2025

PHYS 7127: Cosmology & Galaxies, Georgia Institute of Technology

Computational term project · Instructor: John Wise

  • Used the Boltzmann solver CAMB with Planck 2018 parameters to compute CMB temperature and linear matter power spectra, located the first acoustic peak (ℓ ≈ 220) and compared its scale with the sound horizon at last scattering, and studied the effects of baryon fraction, curvature, low dark-matter density, early reionization and massive neutrinos.
  • Wrote Python code to generate cosmological initial conditions at z = 99 in a (20 comoving Mpc)³, 64³ volume: Gaussian random density fields sampled from the CAMB matter power spectrum with FFTs, and Zel'dovich dark-matter particle displacements and velocities, for Planck 2018 and open (ΩΛ = 0) cosmologies.

Photometric Analysis of the Eclipsing Binary GALEX J19444+5459

December 2022

ASTR 302, University of Arizona

Collaborators: R. Basant and A. Olson

  • Obtained V-band observations with the Kuiper 61-inch telescope and reduced the imaging data using IRAF, including noise and cosmic-ray correction and photometry.
  • Constructed light curves, determined the orbital period and primary and secondary eclipse depths, and estimated component radii for the brown dwarf and subdwarf B star.

Numerical Solution of the Two-Dimensional Schrödinger Equation

May 2023

PHYS 305, University of Arizona

  • Applied finite-difference methods and eigenvalue calculations to solve the two-dimensional Schrödinger equation for different potentials.
  • Analyzed energy levels and wave functions and visualized the resulting quantum states.

ATMO 436A, University of Arizona

Collaborator: G. Fabian

  • Examined the cyclone’s formation, intensity, and contributing meteorological factors, alongside its effects on human life, the environment, and agriculture.
  • Project report: doi:10.13140/RG.2.2.32826.98242.

Teaching Experience

PHYS 2212: Principles of Physics II

Spring 2025; Summer 2025; Fall 2025; Summer 2026

Graduate Teaching Assistant, School of Physics, Georgia Institute of Technology

  • Supported laboratory instruction in introductory electricity and magnetism, helping students carry out experiments and connect their observations to physical principles.
  • Facilitated collaborative group problem-solving sessions, guiding students through conceptual reasoning, mathematical setup, and quantitative solutions.
  • Proctored and graded course examinations.

PHYS 3208: Modern Optics Laboratory

Spring 2026

Graduate Teaching Assistant, School of Physics, Georgia Institute of Technology

Instructor: Colin Parker

  • Provided hands-on assistance with experimental setup, optical measurements, and laboratory procedures in geometrical and wave optics.
  • Guided students through experiments on reflection and refraction, imaging, polarization, diffraction, and interferometry.
  • Graded laboratory reports, evaluating experimental methods, quantitative data analysis, interpretation of results, and scientific communication.

Subject Tutor, Academic Support for Student-Athletes

August–October 2022

CATS Academics, University of Arizona

  • Tutored college algebra, Calculus I and II, and introductory mechanics; monitored student progress and coordinated with academic support staff to address learning needs.

Professional Experience

Summer Intern, TIMESTEP Summer Tech Internship Program

May–August 2023

Delta Thermal Inc., Tucson, Arizona

  • Developed Python tools to analyze temperatures in MLX90640 thermal-camera images and an algorithm for automated image-translation estimation.
  • Analyzed temperature time series from the Asarco Ray site, using AWS for data management and machine-learning methods to investigate temperature trends.

Service and Outreach

Judge, 7th Annual Harrison Science & Engineering Fair

January 2025

  • Evaluated high-school student research projects in a virtual fair using video presentations, project boards, and the provided judging rubric, with attention to scientific methodology and clarity of presentation.

Former Volunteer Teacher

Jeevan Rekha Parishad, Bhubaneswar, India

  • Taught students from disadvantaged backgrounds and provided preparation for Indian competitive examinations, including JEE Main and Advanced.
  • Developed educational plans to support students’ academic development and participated in the organization’s community initiatives.

Honors and Awards

Global Wildcat Scholarship

University of Arizona

Academic Year Academic Distinction

2022

University of Arizona

Dean’s List

Spring 2021; Spring 2022

University of Arizona

Dean’s List with Distinction

Fall 2021

University of Arizona

Presentations

“Academia to Industry, My Journey as an Intern at Delta Thermal Inc.”

September 2023

TIMESTEP Summer Tech Internship Symposium, Arizona Space Institute, University of Arizona

Internship symposium

“Rotational Properties of 21 Sc Galaxies with a Large Range of Luminosities and Radii, from NGC 4605 (R = 4 kpc) to UGC 2885 (R = 122 kpc).”

Fall 2025

PHYS 7127, Cosmology and Galaxies, Georgia Institute of Technology

Seminal-paper presentation on the work of V. C. Rubin, W. K. Ford, Jr., and N. Thonnard (1980)

“The 1999 Odisha Tropical Cyclone.”

May 2023

ATMO 436A, University of Arizona

Course presentation

“Synchrotron Radiation: Insights into Cosmic Phenomena.”

May 2023

ASTR 300B, University of Arizona

Course presentation

“Investigating the Eclipsing Binary GALEX J19444+5459.”

December 2022

ASTR 302 Final Project Presentation, Steward Observatory, University of Arizona

Course presentation

Selected Coursework

Physics and mathematical methods

Electromagnetism; Quantum Mechanics I and II; Statistical Mechanics I; Mathematical Methods in Physics I.

Astrophysics and optics

Cosmology and Galaxies; Radiative Processes; Optics.

Additional undergraduate preparation

Computational Physics; Differential Equations; Classical Mechanics; Electricity and Magnetism I and II; Stellar Structure and Evolution; Dynamics and Mechanics in Astrophysics.

Technical Skills

Programming

Python, MATLAB, C++, Java.

Scientific methods

Numerical modeling, finite-difference methods, eigenvalue calculations, statistical analysis, time-series analysis, machine learning, photometric data reduction.

Computing and research tools

High-performance computing, AWS, Git, Jupyter, IRAF, Linux, LaTeX.

Full descriptions of each research project are on the Research page. The PDF is the authoritative version of this CV.