Paper:	Probing Turbulence in the Interstellar Medium of Galaxies
Volume:	407, The Low-Frequency Radio Universe
Page:	83
Authors:	Dutta, P.; Begum, A.; Bharadwaj, S.; Chengalur, J.N.
Abstract:	The power spectrum of HΙ intensity fluctuation of the interstellar medium carries information of the turbulence dynamics therein. We present a method to estimate the power spectrum of HΙ intensity fluctuation using radio interferometric observations. The method involves correlating the visibilities in the u−v plane at different baselines. This method is particularly use full for evaluating the power spectrum for the faint dwarf galaxies. We apply this method to 3 spiral and 5 dwarf galaxies. The measured power spectrum is seem to follow a power law PHΙ(U) = AUα, suggesting turbulence to be operational. Further, depending on the slope of the power spectrum, we expect the presence of 2D and 3D turbulence in those galaxies.

Astronomical Society of the Pacific
Conference Series

© Copyright 1988 - 2024 - Astronomical Society of the Pacific
No part of the material protected by this copyright may be reproduced or used in any form other than for personal use without written permission from the ASP.

Page generated in 0.064 seconds