astropi-b

Publications

Selected journal, conference, and poster contributions in radio astronomy, cosmology, and machine learning. Also available on Google Scholar .

Upcoming

  1. A Generative Reconstruction of Low- CMB B-Mode Signal using Reverse Diffusion in Deep Learning
    Anumanchi Agastya Sai Ram Likhit, Rajib Saha
    arXiv preprint arXiv:2512.22683 • Published 2025/12/27.

    We present a score-based diffusion approach (VE-SDE) to reconstruct the primordial low B-mode angular power spectrum from contaminated observations. The reverse SDE, guided by a score model trained on primordial realizations for a fixed tensor-to-scalar ratio, iteratively denoises and delenses input spectra. Tests on simulated ECHO-like observations show robust recovery of the primordial signal while preserving its statistical structure.

    arXiv:2512.22683
  2. Two-Element Radio Interferometer: Exploring the SKA Low Frequency Band at Gauribidanur
    Abhishek R, Anumanchi Agastya Sai Ram Likhit, Katta Naveen, Roshan Kumar Dora, Deep Bhowmik, Krishna Balaji S, Arutkeerthi N, Arul Pandian B, Sahana Bhattramakki, Prabu T, Raghavendra Rao K B, Keerthipriya S, Arasi Sathyamurthy.
    Aiming to publish in Journal of Astronomy and Astrophysics.
    Paper: coming soon.

2025

  1. Innovative Web Tool for Remote Data Acquisition and Analysis: Customized for SKA Low Frequency Beamforming Test Bed LPDA Array at Gauribidanur Radio Observatory
    Anumanchi Agastya Sai Ram Likhit, Katta Naveen, Arul Pandian B, R Abhishek, Prabu T
    Published in Journal of Astronomy and Astrophysics.
    Paper

2024

  1. A Novel Sector-Based Algorithm for an Optimized Star-Galaxy Classification
    Anumanchi Agastya Sai Ram Likhit, Divyansh Tripathi, Akshay Agarwal
    Tiny Paper track, ICLR 2024.
    Paper
  2. Identifying Potential Habitats Beyond Earth: A Multilayered Statistical Analysis of NASA's Confirmed Exoplanets
    Anumanchi Agastya Sai Ram Likhit, Chintad Lohind Sai Durga
    42nd ASI Meeting, 2024.
    Extended abstract
  3. Two Element Broadband Radio Interferometer: Exploring the SKA-Low Frequency Band at Gauribidanur Radio Observatory
    Roshan Kumar Dora, Anumanchi Agastya Sai Ram Likhit, Katta Naveen, Deep Bhowmik, Krishna Balaji S, Arutkeerthi N, Abhishek R, Arul Pandian B, Sahana Bhattramakki, Prabu T, Raghavendra Rao K B, Keerthipriya S, Arasi Sathyamurthy
    42nd ASI Meeting, 2024.
    Extended abstract

2023

  1. An Innovative Web Tool for Remote Data Acquisition and Analysis: Customised for SKA Test LPDA Setups at Gauribidanur Radio Observatory
    Anumanchi Agastya Sai Ram Likhit, Katta Naveen, Arul Pandian B, R Abhishek
    META-2023.
    Poster