Radio Emission from Exoplanets

TL;DR

This study used the GMRT to observe two exoplanetary systems at 150 MHz, setting upper limits on their radio emissions despite non-detections, advancing understanding of exoplanetary radio signals.

Contribution

First low-frequency observations of Epsilon Eridani and HD128311 with GMRT, establishing upper limits on their radio emissions.

Findings

No radio emission detected from either system.

Tight upper limits placed on low frequency radio flux.

Results inform models of exoplanetary magnetospheres.

Abstract

We present results from new low frequency observations of two extrasolar planetary systems (Epsilon Eridani and HD128311) taken at 150 MHz with the Giant Metrewave Radio Telescope (GMRT). We do not detect either system, but are able to place tight upper limits on their low frequency radio emission.