Note: this is an
archived version which has been superseded. The current SNR
catalogue is at
http://www.mrao.cam.ac.uk/surveys/snrs/
G69.0+2.7
CTB 80
- Right Ascension: 19 53 20
- Declination: +32 55
- Size (/arcmin): 80?
- Type: ?
- Flux density at 1 GHz (/Jy): 120?
- Spectral Index: varies
Notes: An association with a SN in AD1408 has been suggested. Has been called G68.8+2.8. Is it a SNR?
- Radio: Compact core, flat spectrum plateau, and steeper spectrum extensions, with spectral break?
- Optical: Expanding nebulosity near centre, with filaments to the SW and far NE.
- X-ray: Diffuse emission with compact source.
- Point sources: Pulsar at western edge of core.
References:
- Angerhofer et al. 1981, A&A, 94, 313. WSRT at 610 MHz (56"×103") 1.4 GHz (24"×44") and 5 GHz (7"×13"),
plus optical.
ADS
- Becker et al. 1982, ApJ, 255, 557. X-ray observations.
ADS
- Sofue et al. 1983, PASJ, 35, 437. NRO 45-m at 10.2 GHz (2'.7).
ADS
- Velusamy & Kundu 1983, JApA, 3, 253. VLA of compact sources.
ADS
- Blair et al. 1984, ApJ, 282, 161. Optical images and spectra.
ADS
- Wang & Seward 1984, ApJ, 285, 607. Einstein observations.
ADS
- Strom et al. 1984, A&A, 139, 43. Radio observations of flat spectrum component, VLA 5 GHz (1".7) and 1.4 GHz.
ADS
- Mantovani et al. 1985, A&A, 145, 50. Bologna at 408 MHz (2'.6×4'.9: S=67.5±10.5 Jy), Effelsberg 100-m at 1.41
(9': S=62±9 Jy), 1.72 (7'.6: S=66±5 Jy), 2.7 (4'.5: S=52±4 Jy) and 4.75 GHz (2'.4: S=44±3.3 Jy), plus review of flux densities.
ADS
- Kulkarni et al. 1988, Natur, 331, 50. Pulsar detection.
ADS
- Angelini et al. 1988, ApJ, 330, L43. EXOSAT spectra.
ADS
- Fesen et al. 1988, Natur, 334, 229. IRAS of surrounding shell.
ADS
- Whitehead et al. 1989, MNRAS, 237, 1109. Optical of core.
ADS
- Salter et al. 1989, ApJ, 338, 171. NRAO 12-m at 84.2 GHz of core, plus review of flux densities.
ADS
- Hester & Kulkarni 1989, ApJ, 340, 362. Optical imaging and spectroscopy.
ADS
- Koo et al. 1990, ApJ, 364, 178. Large, expanding HI shell.
ADS
- Greidanus & Strom 1990, A&A, 240, 376. Optical kinematics of core.
ADS
- Koo et al. 1993, ApJ, 417, 196. VLA at 1.4 GHz of surrounding HI (1'), plus IRAS.
ADS
- Safi-Harb et al. 1995, ApJ, 439, 722. ROSAT observations.
ADS
- Srinivasan 1997, ApJ, 489, 170. gamma-ray observations of pulsar.
ADS
- Mavromatakis et al. 2001, A&A, 371, 300. Optical observations.
ADS
- Butler et al. 2002, A&A, 395, 845. HST detection of pulsar.
ADS
- Migliazzo et al. 2002, ApJ, 567, L141. Pulsar proper motion study.
ADS
- Castelletti et al. 2003, AJ, 126, 2114. GMRT at 240 and 618 MHz (26"×17" and 10"×6") and VLA at 324 and 1380 MHz (73"×63" and 93"×78").
ADS
Last updated: 11 Jan 2004
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Dave Green/MRAO, Cambridge, UK/D.A.Green@mrao.cam.ac.uk