Note: this is an archived version which has been superseded.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

G260.4-3.4 Puppis A, MSH 08-44

• Right Ascension: 08 22 10
• Declination: -43 00
• Size (/arcmin): 60×50
• Type: S
• Flux density at 1 GHz (/Jy): 130
• Spectral Index: 0.5

Notes: This remnant overlaps the Vela SNR (G263.9-3.3).

Radio: Angular shell, brightest to the E, poorly defined to the W.

Optical: Nebulosity and wisps.

X-ray: Brightest to the E.

Point sources: Central source, a possible pulsar in X-rays.

Distance: Association with HI gives 2.2±0.3 kpc; OH absorption/emission in vicinty implies 0.5 to 1.9 kpc.

References:

• Green 1971, AuJPh, 24, 773. Molonglo at 408 MHz (3': S=198±20 Jy).
• Goudis & Meaburn 1978, A&A, 62, 283. Halpha+NII] optical image. ADS
• Winkler et al. 1981, ApJ, 245, 574. X-ray spectroscopy of O lines. ADS
• Winkler et al. 1981, ApJ, 245, L27. X-ray spectrum. ADS
• Petre et al. 1982, ApJ, 258, 22. Einstein observations. ADS
• Milne et al. 1983, MNRAS, 204, 237. FIRST at 1415 MHz (50"), large scale emission missing. ADS
• Teske & Petre 1987, ApJ, 318, 370. Coronal optical line emission. ADS
• Dubner & Arnal 1988, A&AS, 75, 363. HI and CO observations of surroundings. ADS
• Arendt et al. 1990, ApJ, 350, 266. MOST at 843 MHz (44"×65"), with large scale emission added, plus IR, optical and X-ray observations. ADS
• Dubner et al. 1991, AJ, 101, 1466. VLA at 327 MHz (43"×73") and 1.5 GHz (43"×77"). ADS
• Arendt et al. 1991, ApJ, 368, 474. IR observations. ADS
• Milne et al. 1993, MNRAS, 261, 366. Parkes 64-m at 4.75 (4'.5: S=59±5 Jy) and 8.4 GHz (3': S=38±4 Jy), plus polarization. ADS
• Berthiaume et al. 1994, ApJ, 425, 132. X-ray spectroscopy. ADS
• Sutherland & Dopita 1995, ApJ, 439, 365. Spectrophotometry. ADS
• Reynoso et al. 1995, AJ, 110, 318. VLA at 1.4 GHz (90") including neutral hydrogen. ADS
• Blair et al. 1995, ApJ, 454, L35. Far UV spectroscopy. ADS
• Petre et al. 1996, ApJ, 465, L43. ROSAT of central source. ADS
• Bock et al. 1998, AJ, 116, 1886. MOST at 843 MHz (43"×60"). ADS
• Pavlov et al. 1999, ApJ, 511, L45. Possible pulsation detection from central X-ray source. ADS
• Zavlin et al. 1999, ApJ, 525, 959. X-ray observations of central source. ADS
• Bocchino et al. 2000, A&A, 359, 316. Optical studies of selected filaments in N. ADS
• Woermann et al. 2000, MNRAS, 317, 421. OH observations. ADS
• Gaensler et al. 2000, ApJ, 537, L35. Radio limit for nebula around possible pulsar. ADS

Last updated: 17 Oct 2001