We have compiled a catalogue of HII regions detected with the Murchison Widefield Array (MWA) between 72 and 231MHz. The multiple frequency bands provided by the MWA allow us identify the characteristic spectrum generated by the thermal Bremsstrahlung process in HII regions. We detect 302 HII regions between 260 < l < 340 and report on the positions, sizes, peak, integrated flux density, and spectral indices of these HII regions. By identifying the point at which HII regions transition from the optically thin to thick regime we derive the physical properties including the electron density, ionised gas mass and ionising photon flux, towards 61 HII regions. This catalogue of HII regions represents the most extensive and uniform low frequency survey of HII regions in the Galaxy to date.
@article{arxiv.1605.02872,
title = {A Large Scale, Low Frequency Murchison Widefield Array Survey of Galactic HII regions between 260< l <\340},
author = {L. Hindson and M. Johnston-Hollitt and N. Hurley-Walker and J. R. Callingham and H. Su and J. Morgan and M. Bell and G. Bernardi and J. D. Bowman and F. Briggs and R. J. Cappallo and A. A. Deshpande and K. S. Dwarakanath and B. -Q For and B. M. Gaensler and L. J. Greenhill and P. Hancock and B. J. Hazelton and A. D. Kapinska and D. L. Kaplan and E. Lenc and C. J. Lonsdale and B. Mckinley and S. R. McWhirter and D. A. Mitchell and M. F. Morales and E. Morgan and D. Oberoi and A. Offringa and S. M. Ord and P. Procopio and T. Prabu and N. UdayaShankar and K. S. Srivani and L. Staveley-Smith and R. Subrahmanyan and S. J. Tingay and R. B. Wayth and R. L. Webster and A. Williams and C. L. Williams and C. Wu and Q. Zheng},
journal= {arXiv preprint arXiv:1605.02872},
year = {2016}
}