Figure 1.
![VLA 3.6 cm continuum contour map of the high-mass star-forming region AFGL 2591, showing the radio continuum sources VLA 1, VLA 2 and VLA 3, all of them excited by massive stars (see Section 1). The plus symbols indicate the positions of the VLA 22 GHz water masers detected in the region [figure from Trinidad et al. (2003)]. The region analysed and discussed in this paper is VLA 3-N (enclosed by a dashed square), located ∼0.5 arcsec north of VLA 3. This is the region where Trinidad et al. (2003) proposed that an internal source other than VLA 3 is exciting these water masers.](https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/mnras/430/2/10.1093_mnras_sts707/1/sts707fig1.jpeg?Expires=1749863882&Signature=NgqkNvxzzhaOF-ArxkqRz6mxY~cww5hJTdUDl~WbmfVIilnRrnePUvM4hkC7Pj8MUev9DLBu9hMHsn8Gn~2LY1ITVDLtxuErpYgeQH6Nx9jwwCNZHWZ7Z-MqDMFa7QXnC8B2OKHKTKBxIX8~iLaQtxtgj3FkqLLawuhg7c~gT00FYml5eYWZ~pYprJkjWNCD7RuoJqRNnIDCKQdXqTjhJHg2npmC-NQqoKy-~JRB2SKwRSl7IG2IJwBc5VMRrDGXBiQew3eMJEU1fSKUL-FxNJKKRodlR04PeXcRxr8FuVqSKHmSaH2pWeXDMVBXvB1fX99imZ8FrLua~rEJRr8flA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
VLA 3.6 cm continuum contour map of the high-mass star-forming region AFGL 2591, showing the radio continuum sources VLA 1, VLA 2 and VLA 3, all of them excited by massive stars (see Section 1). The plus symbols indicate the positions of the VLA 22 GHz water masers detected in the region [figure from Trinidad et al. (2003)]. The region analysed and discussed in this paper is VLA 3-N (enclosed by a dashed square), located ∼0.5 arcsec north of VLA 3. This is the region where Trinidad et al. (2003) proposed that an internal source other than VLA 3 is exciting these water masers.
