G8.7−0.1     (W30)

• Right Ascension: 18 05 30
• Declination: −21 26
• Size (/arcmin): 45
• Type: S?
• Flux density at 1 GHz (/Jy): 80
• Spectral Index: 0.5

Notes: Has been called G8.6−0.1.

Radio: Clumpy non-thermal shell, with low-frequency turnover.

X-ray: Northern edge detected.

Point sources: Pulsar inside western edge.

References:

• Odegard 1986, AJ, 92, 1372. TPT at 57.5 MHz (7'.2×9'.7: S=190±50 Jy). ADS
• Kassim & Weiler 1990, Nature, 343, 146. VLA at 327 MHz (3'.0×3'.7). ADS
• Kassim & Weiler 1990, ApJ, 360, 184. VLA at 327 MHz (2'.8×4'.1: S=129±11 Jy), and part at 1.4 GHz (0'.9×1'.8), plus review of flux densities. ADS
• Frail et al. 1994, AJ, 107, 1120. VLA at 327 MHz (37''×55''). ADS
• Finley & Ögelman 1994, ApJ, 434, L25. ROSAT observations, including pulsar. ADS
• Aharonian et al. 2005, Science, 307, 1938. γ-ray detection. ADS
• Aharonian et al. 2006, ApJ, 636, 777. γ-ray observations. ADS
• Landi et al. 2006, ApJ, 651, 190. X-ray observations. ADS
• Briskin et al. 2006, ApJ, 652, 554. Pulsar proper motion. ADS
• Hewitt & Yusef-Zadeh 2009, ApJ, 694, L16. OH maser detection. ADS
• Castro & Slane 2010, ApJ, 717, 372. Fermi observations. ADS
• Ajello et al. 2012, ApJ, 744, 80. Fermi observations. ADS

Last updated: 23 May 2014