From NVSS to RACS: Identifying truly Compact Galactic and Extragalactic sources with Steep Spectra

arXiv:2604.04577 · astro-ph.GA, astro-ph.HE · Submitted 2026-04-06 · Read on arXiv

astro-ph.GA, astro-ph.HE

Submitted: 2026-04-06

Updated: 2026-08-31

Project page: http://www.ncra.tifr.res.in/~ymaan/scope.html

Terminology

• NRAO VLA Sky Survey — 4× in this paper
• Rapid ASKAP Continuum Survey — 3× in this paper
• TIFR-GMRT Sky Survey — 2× in this paper
• AGN — 1× in this paper · explained in 1 episode
• Frequency Dependence — 1× in this paper · explained in 2 episodes

Sources

• The Rapid ASKAP Continuum Survey V: cataloguing the sky at 1367.5 MHz and the second data release of RACS-mid
• Survey of compact sources for pulsars and exotic objects -- I. Overview and initial discoveries
• Radio spectral index from NVSS and TGSS

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