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  • NAM2017
    • Timetable
    • Delegates
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  • Science
    • Parallel sessions
    • Plenary talks
    • Posters
    • Publishing workshop
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Abstract details

id
A cm to mm study of DG Tau B
Date Submitted
2017-04-26 14:16:27
ComPlan
Raeesa Parker
University of Central Lancashire (UCLan)
Poster
Derek Ward-Thompson (UCLan), Emily Drabek-Maunder (Cardiff), Jane Greaves (Cardiff), Anita Richards (Manchester), Megan Argo (UCLan)
DG Tau B is a Class I young stellar object separated by approximately 1 arc-min from the T Tauri star DG Tau A. A circumstellar disk, which has been observed at mm wavelengths, lies perpendicular to an asymmetric bipolar optical jet powered by DG Tau B. We present radio continuum observations made with the extended Multi-Element Radio Linked Interferometer Network (e-MERLIN) at 6.5 GHz (4.6 cm) and 7.2 GHz (4.1 cm). The detected flux densities, as well as previous results, were used to plot an SED of DG Tau B. The spectral index of the cm radio excess was calculated to be alpha = 1.09 +/- 0.15. This nearly flat radio spectral index indicates that the cm emission detected is due to the jet, or ionized stellar winds. Mm observations have also been made at 34 GHz (8.8 mm) with the e-VLA and the mm emission due to the disk is detected.

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