Note: this is an archived version which has been superseded. The current SNR catalogue is at http://www.mrao.cam.ac.uk/surveys/snrs/

G109.1-1.0 CTB 109

• Right Ascension: 22 59 30
• Declination: +58 37
• Size (arcmin): 28
• Type: S
• Flux density at 1 GHz (Jy): 20
• Spectral Index: 0.50

Radio: Semicircular shell, with the Molecular cloud S152 is to the immediate W.

X-ray: Incomplete shell.

Point sources: Pulsar at W edge.

References:

• Hughes et al. 1981, ApJ, 246, L127. WSRT at 610 MHz (1': S=40±5) shows bad CLEAN artefacts. ADS
• Blair & Kirshner 1981, Nat, 291, 132. Optical spectra. ADS
• Downes 1983, MNRAS, 203, 695. Effelsberg 100-m at 2.7 GHz (4'.4: S=13.0±1.5). ADS
• Gregory et al. 1983, in IAU101, p429. VLA at 1.4 GHz (1'), NRAO 300-ft at 5 GHz (3') and IPC observations.
• Sofue et al. 1983, PASJ, 35, 447. NRO 45-m at 10.2 GHz (2'.7). ADS
• Hughes et al. 1984, ApJ, 283, 147. WSRT at 610 MHz (20": S=26±3) 1.4 GHz (10"), DRAO at 1.4 GHz (1'×1'.2: S=16.8±2) and Algonquin 46-m at 6.5 GHz (4'.5: S=6.7±1). ADS
• Braun & Strom 1986, A&AS, 63, 345. WSRT HI observations. ADS
• Tatematsu et al. 1987, PASJ, 39, 755. NRO 45-m at 10 GHz (2'.7), plus polarization. ADS
• Tatematsu et al. 1987, A&A, 184, 279. CO observations of the surroundings (2'.7). ADS
• Hanson et al. 1988, A&A, 195, 114. EXOSAT of pulsar. ADS
• Morini et al. 1988, ApJ, 333, 777. EXOSAT observations. ADS
• Koyama et al. 1989, PASJ, 41, 461. X-ray observations of pulsar. ADS
• Coe et al. 1989, MNRAS, 238, 649. IRAS observations of surroundings. ADS
• Green 1989, MNRAS, 238, 737. OH observations. ADS
• Tatematsu et al. 1990, ApJ, 351, 157. CO of surroundings, plus X-ray observations. ADS
• Davies & Coe 1991, MNRAS, 249, 313. Optical and IR observations near pulsar. ADS
• Hurford & Fesen 1995, MNRAS, 277, 549. ROSAT imaging. ADS

Last updated: 20 AUG 1996