PAHs and Star Formation in the HII regions of M83 and M33

M83M33 presents Spitzer IRS spectra (SL, SH, and LL modules) of 21 HII regions in M83 and 18 HII regions in M33.M83M33数据集包含了M83星系内21个电离氢区（H II region）与M33星系内18个电离氢区的斯皮策红外摄谱仪（Spitzer Infrared Spectrograph, IRS）光谱数据，涵盖该仪器的SL、SH与LL三个观测模块。