G85.4+0.7
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- Right Ascension: 20 50 40
- Declination: +45 22
- Size (/arcmin): 24?
- Type: S
- Flux density at 1 GHz (/Jy): ?
- Spectral Index: 0.2
- Radio: Faint, incomplete shell, within larger thermal shell.
- X-ray: Centrally brightened.
- Distance: HI observations suggest 3.5 kpc, optical absorption suggests 4.4 or 3.8 kpc.
References:
- Kothes et al. 2001, A&A, 376, 641. CGPS at 408 MHz (2.′8×4.′4: S<0.45 Jy) and 1.4 GHz (0.′8×1.′1), plus HI and X-ray data.
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- Kothes et al. 2006, A&A, 457, 1081. CGPS at 408 MHz (~3′: S=2.9±0.5 Jy) and 1420 MHz (~1′: S=2.3±0.2 Jy), including review of flux densities.
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- Jackson et al. 2008, ApJ, 674, 936. XMM-Newton and HI observations.
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- Jeong et al. 2012, Ap&SS, 342, 389. CO observations of region.
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- Shan et al. 2018, ApJS, 238, 35. Optical absorption for distance.
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- Wang et al. 2020, A&A, 639, A72. Optical extinction for distance.
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Last updated: 14 Dec 2022
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