Low frequency (74 MHz) radio continuum observations of the inner 13° × 7° of the Galactic center

M. Rickert, Farhad Yusef-Zadeh, C. Brogan

Research output: Contribution to journalArticlepeer-review

Abstract

We analyze a high resolution (114″ × 60″) 74 MHz image of the Galactic center taken with the Very Large Array (VLA). We have identified several absorption and emission features in this region, and we discuss preliminary results of two Galactic center sources: the Sgr D complex (G1.1-0.1) and the Galactic center lobe (GCL). The 74 MHz image displays the thermal and nonthermal components of Sgr D and we argue the Sgr D supernova remnant (SNR) is consistent with an interaction with a nearby molecular cloud and the location of the Sgr D Hii region on the near side of the Galactic center. The image also suggests that the emission from the eastern side of the GCL contains a mixture of both thermal and nonthermal sources, whereas the western side is primarily thermal.

Original languageEnglish (US)
Pages (from-to)464-466
Number of pages3
JournalProceedings of the International Astronomical Union
Volume9
Issue numberS303
DOIs
StatePublished - Jan 1 2014

ASJC Scopus subject areas

  • Astronomy and Astrophysics

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