Radio emission from massive protostellar objects

TL;DR

This paper reviews how radio observations help understand the complex processes involved in the formation of massive stars, highlighting historical findings and new survey data.

Contribution

It discusses the role of radio astronomy in unveiling the early stages of massive star formation and reports new survey data relevant to this field.

Findings

Radio observations reveal hidden early phases of massive star formation.

Historical data connect low and high energy phenomena in star formation.

New surveys provide valuable data for future research.

Abstract

The study of the formation of massive stars presents complex challenges from both theoretical and observational points of view. The initial phases of evolution, for instance, remain almost hidden except at radio and IR wavelengths. In this article, after stating some of the problems of massive star formation, the role of radio observations to disclose the involved physics is discussed. Historical observational findings are briefly outlined, and the connection between low energy and high energy aspects of the phenomenon is addressed. Finally, data availability in the form of some new surveys is reported.