The VLT MUSE NFM view of outflows and externally photoevaporating discs near the orion bar★
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We present Very Large Telescope/Multi-Unit Spectroscopic Explorer Narrow Field Mode observations of a pair of disc-bearing young stellar objects towards the Orion Bar: 203–504 and 203–506. Both of these discs are subject to external photoevaporation, where winds are launched from their outer regions due to environmental irradiation. Intriguingly, despite having projected separation from one another of only 1.65 arcsec(660 au at 400 pc), 203–504 has a classic teardrop shaped ‘proplyd’ morphology pointing towards θ2 Ori A (indicating irradiation by the EUV of that star, rather than
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Haworth, T. J., Reiter, M., O’Dell, C. R., Zeidler, P., Berne, O., Manara, C. F., Ballabio, G., Kim, J. S., Bally, J., Goicoechea, J. R., Aru, M.-L., Gupta, A., & Miotello, A. (2023). The VLT MUSE NFM view of outflows and externally photoevaporating discs near the orion bar★. Monthly Notices of the Royal Astronomical Society, 525(3), 4129–4142. https://doi.org/10.1093/mnras/stad2581