260<l<340范围内银河系HII区的大尺度低频Murchison Widefield Array巡天
星系天体物理
2016-06-22 v2
摘要
我们编制了在72至231 MHz间用Murchison Widefield Array (MWA)探测到的HII区目录。MWA提供的多个频带使我们能够识别HII区中热轫致辐射过程产生的特征谱。我们在260 < l < 340间探测到302个HII区，并报告这些HII区的位置、大小、峰值、积分通量密度和谱指数。通过识别HII区从光学薄向厚转变的点，我们推导出包括电子密度、电离气体质量和电离光子通量在内的物理属性，针对61个HII区。该HII区目录代表了迄今为止银河系中最广泛且最均匀的低频HII区巡天。
引用
@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}
}
备注
20 pages, 9 figures, 3 tables