G70.0−21.5
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- Right Ascension: 21 24 00
- Declination: +19 23
- Size (/arcmin): 330×240
- Type: S
- Flux density at 1 GHz (/Jy): ?
- Spectral Index: ?
- Radio: Not detected.
- Optical: Large, faint shell of filaments.
- X-ray: Partially detected.
- Point sources: Possible associated WD.
- Distance: Association with WD implies 1 kpc.
References:
- Boumis et al. 2002, A&A, 396, 225. Optical and ROSAT observations.
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- Fesen et al. 2015, ApJ, 812, 37. Hα and other optical/UV line and ROSAT observations.
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- Shen et al. 2018, ApJ, 865, 15. GAIA of WD.
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- Raymond et al. 2020, ApJ, 888, 90. Optical observations.
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- Bracco et al. 2020, A&A, 636, L8. Optical, IR and dust observations.
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Last updated: 13 Dec 2022
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Dave Green / Cambridge, UK /