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Keywords

H II regions
Individual: GGD 14
ISM: Jets and outflows
Stars: Pre-main sequence

How to Cite

The Nature of the Cluster of Radio Sources in GGD 14. (2003). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 15(1), 136-136. https://astronomia.unam.mx/journals/rmxac/article/view/2003rmxac..15..136g
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Abstract

We present sensitive radio continuum observations at 3.6 and 6 cm made simultaneously toward the star-forming region GGD 14. The observations reveal the presence of nine extremely compact ( <= 0''.3) and faint radio sources in a region of 30 arcsec around the bright cometary H II region, VLA 1. Eight of these sources show variability at radio wavelengths, and their spectral indices are characteristically negative. Four of the faint sources have an IR counterpart. We propose that gyrosynchrotron radiation from an active magnetosphere explains the emission from almost all the faint compact sources, suggesting that the GGD 14 region harbors a cluster of low-mass, pre-main-sequence stars. The only sources that do not show time variability are VLA 1, the cometary H II region, and VLA 7, the powering source of the molecular outflow.