Scientists observe high-speed star formation UniCologne NatureAstronomy
The Cygnus X region was observed during several flights in November 2019, February 2021, November 2021 and April 2022 for the legacy program FEEDBACK, using the 2.7 m telescope onboard the SOFIA. The dual-frequency heterodyne array receiver upGREATwas tuned to the [CII] 157.7 μm line in the low-frequency array 2 × 7 pixel array and the [OI] 63 μm line was observed in the high-frequency 7 pixel array. The LFA has an array size of 72.6″, and a pixel spacing of 31.8″.
We then spatially smoothed the resulting [CII] map to an angular resolution of 30″ in a Nyquist sampled 10″ grid to emphasize the large-scale emission distribution and not focus on small-scale variations. Some striping effects are still visible, but they do not produce systematic effects in the data analysis . The map centre position is at right acension = 20 h 38 min 39.3 s, Declination = 42° 20′ 39.3″ and an emission-free OFF position at right acension = 20 h 39 min 48.
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