Note: this is an archived version which has been superseded.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

4th quadrant Galactic SNRs (315°<l<360°)


G315.4-2.3 RCW 86, MSH 14-63

Notes: Possibly the remnant of the SN of AD185?

Radio: Shell, brightest to the SW.
Optical: Bright, radiative filaments, with some faint Balmer dominated filaments.
X-ray: Partial shell, with bright patch.
Distance: Possible association with OB stars suggests 2.5 kpc.

References:

Last updated: 27 Aug 1996


G315.4-0.3

Radio: Irregular non-thermal emission, with HII region superposed in E.

References:

Last updated: 20 AUG 1996


G315.9-0.0

Notes: Has been called G315.8-0.0.

Radio: Faint, distorted shell, with steep-spectrum ``jet"?

References:

Last updated: 21 AUG 1996


G316.3-0.0 (MSH 14-57)

Radio: Distorted shell, with possible ``blowout".
Distance: HI absorption data suggests >7.2 kpc.

References:

Last updated: 21 AUG 1996


G317.3-0.2

Radio: Incomplete shell.

References:

Last updated: 21 AUG 1996


G318.2+0.1

Radio: Faint shell, with central HII region.

References:

Last updated: 21 AUG 1996


G318.9+0.4

Notes: May not be a SNR?

Radio: Complex arcs, with off-centre core.

References:

Last updated: 21 AUG 1996


G320.4-1.2 MSH 15-52, RCW 89

Notes: Has been suggested as the remnant of the SN of AD185?

Radio: Ragged shell.
Optical: RCW 89 is the Halpha emitting region to the NW.
X-ray: Partial shell, central nebula and pulsar and possible ``jet".
Point sources: Radio and X-ray pulsar, plus IR compact source.
Distance: HI absorption indicates 4.2 kpc.

References:

Last updated: 27 Aug 1996


G320.6-1.6

Radio: Faint shell, overlapping G320.4-1.2 in W.

References:

Last updated: 21 AUG 1996


G321.9-1.1

Radio: Faint shell.

References:

Last updated: 22 AUG 1996


G321.9-0.3

Radio: Shell brighter to the W, with Cir X-1 to N.
Point sources: Compact, probably thermal source at S edge.

References:

Last updated: 21 AUG 1996


G322.5-0.1

Radio: Shell with central extended source.
Point sources: PN Pe 2-8 within boundary.

References:

Last updated: 21 AUG 1996


G323.5+0.1

Radio: Distorted shell, confused with thermal emission.
Point sources: Compact, probably thermal source near centre.

References:

Last updated: 21 AUG 1996


G326.3-1.8 MSH 15-56

Notes: Has been called G326.2-1.7.

Radio: Shell, with flat spectrum core.
Optical: Emission around the shell.
X-ray: Shell, with central extended emission.

References:

Last updated: 21 AUG 1996


G327.1-1.1

Radio: Shell, with off-centre core.
X-ray: Detected.

References:

Last updated: 21 AUG 1996


G327.4+0.4 Kes 27

Notes: Has been called G327.3+0.4 and G327.3+0.5.

Radio: Incomplete, multi-arc shell, brightest to the SE.
X-ray: Compact and extended emission near centre of remnant.

References:

Last updated: 21 AUG 1996


G327.4+1.0

Radio: Asymmetric shell.

References:

Last updated: 21 AUG 1996


G327.6+14.6 SN1006, PKS 1459-41

Notes: This is the remnant of the SN of AD1006.

Radio: Shell, with two bright arcs.
Optical: Filaments to the NW, with broad Halpha component.
X-ray: Thermal shell, with non-thermal limb-brightened arcs.
Point sources: The Schweizer-Middleditch star is near the middle of the remnant.
Distance: Optical spectra and proper motion indicate 1.7--3.1 kpc.

References:

Last updated: 22 AUG 1996


G328.4+0.2 (MSH 15-57)

Radio: Amorphous emission.

References:

Last updated: 21 AUG 1996


G329.7+0.4

Radio: Diffuse shell, in complex region.

References:

Last updated: 21 AUG 1996


G330.0+15.0 Lupus Loop

Radio: Low surface brightness loop with HI shell.
X-ray: Detected.

References:

Last updated: 28 JUN 1995


G330.2+1.0

Radio: Clumpy non-thermal emission, possibly a distorted shell.

References:

Last updated: 21 AUG 1996


G332.0+0.2

Radio: Incomplete shell.

References:

Last updated: 21 AUG 1996


G332.4-0.4 RCW 103

Radio: Shell, brightest to the S.
Optical: Filaments correspond well to the radio shell.
X-ray: Detected, with point source near centre.
Point sources: Detected in X-rays.
Distance: HI absorption indicates 3.3 kpc.

References:

Last updated: 21 AUG 1996


G332.4+0.1 MSH 16-51, Kes 32

Notes: Has been called G332.4+0.2.

Radio: Distorted shell, with thermal jet and plume adjacent.
Point sources: Pulsar nearby.

References:

Last updated: 21 AUG 1996


G335.2+0.1

Radio: Well defined shell.
Point sources: Old pulsar within remnant boundary.

References:

Last updated: 21 AUG 1996


G336.7+0.5

Radio: Irregular shell.

References:

Last updated: 21 AUG 1996


G337.0-0.1 (CTB 33)

Radio: Possible shell, confused by nearby thermal sources.

References:

Last updated: 21 AUG 1996


G337.2-0.7

Radio: Shell, not well resolved.

References:

Last updated: 21 AUG 1996


G337.3+1.0 Kes 40

Radio: Nearly complete shell.

References:

Last updated: 21 AUG 1996


G337.8-0.1 Kes 41

Radio: Distorted shell.
Distance: HI absorption suggests >9.3 kpc.

References:

Last updated: 21 AUG 1996


G338.1+0.4

Radio: Arc in NE, merging with thermal emission in S.
Optical: Detected.

References:

Last updated: 21 AUG 1996


G338.3-0.0

Radio: Irregular shell, in complex region.

References:

Last updated: 21 AUG 1996


G338.5+0.1

Radio: Circle of non-thermal emission in complex region, not well defined.

References:

Last updated: 21 AUG 1996


G340.4+0.4

Radio: Distorted shell, elongated east--west.

References:

Last updated: 21 AUG 1996


G340.6+0.3

Radio: Incomplete shell.
Optical: Possible associated filaments.

References:

Last updated: 21 AUG 1996


G341.2+0.9

Radio: Incomplete shell, with extension to SW.
Point sources: Pulsar in W.

References:

Last updated: 30 JUN 1995


G341.9-0.3

Radio: Incomplete shell, brightest to NE.

References:

Last updated: 21 AUG 1996


G342.0-0.2

Radio: Distorted shell.

References:

Last updated: 21 AUG 1996


G342.1+0.9

Radio: Incomplete shell.

References:

Last updated: 21 AUG 1996


G343.1-2.3

Radio: Incomplete shell?
Point sources: Pulsar near edge.

References:

Last updated: 20 AUG 1996


G343.1-0.7

Radio: Shell, with smaller thermal shell adjacent.

References:

Last updated: 21 AUG 1996


G344.7-0.1

Radio: Aysmmetric shell, with possible core.

References:

Last updated: 21 AUG 1996


G345.7-0.2

Radio: Poorly defined diffuse shell.
Point sources: Old pulsar nearby.

References:

Last updated: 21 AUG 1996


G346.6-0.2

Radio: Irregular shell.

References:

Last updated: 21 AUG 1996


G348.5-0.0

Radio: Arc, overlapping G348.5+0.1.

References:

Last updated: 21 AUG 1996


G348.5+0.1 CTB 37A

Radio: Shell, poorly define to S and W, overlapping G348.5-0.0 in E.
Distance: HI absorption indicates 10.2±3.5 kpc.

References:

Last updated: 20th May 1992


G348.7+0.3 CTB 37B

Radio: Incomplete shell with faint eastern extensions.
Distance: HI absorption indicates 10.2±3.5 kpc.

References:

Last updated: 21 AUG 1996


G349.2-0.1

Radio: Elongated shell, adjacent to bright HII region.

References:

Last updated: 27 Aug 1996


G349.7+0.2

Radio: Incomplete clumpy shell, with enhancement to the S.
Distance: HI absorption indicates 18.3±4.6 kpc.

References:

Last updated: 21 AUG 1996


G350.0-1.8

Radio: Arc, possibly part of a larger remnant.

References:

Last updated: 1st March 1988


G351.2+0.1

Notes: Has been called G351.3+0.2.

Radio: Distorted shell, with possible flat-spectrum core.

References:

Last updated: 21 AUG 1996


G351.7+0.8

Radio: Elongated shell, adjacent to bright HII region.
Point sources: Pulsar nearby.

References:

Last updated: 21 AUG 1996


G351.9-0.9

Radio: Asymmetric shell.

References:

Last updated: 21 AUG 1996


G352.7-0.1

Radio: Distorted shell.

References:

Last updated: 21 AUG 1996


G354.1+0.1

Notes: Is this a SNR?

Radio: Elongated N--S.
Point sources: Pulsar at S tip.

References:

Last updated: 31 JUL 1995


G354.8-0.8

Radio: Distorted shell.

References:

Last updated: 21 AUG 1996


G355.6-0.0

Radio: Well defined shell.

References:

Last updated: 30 JUN 1995


G355.9-2.5

Radio: Distorted shell, brightest to SE.

References:

Last updated: 28 JUN 1995


G356.3-0.3

Radio: Elongated shell, brighter in N.

References:

Last updated: 30 JUN 1995


G356.3-1.5

Radio: Double arc.

References:

Last updated: 30 JUN 1995


G357.7-0.1 MSH 17-39

Notes: Has been suggested that this is not a SNR.

Radio: Multiple arcs and filaments.
Point sources: Peripheral compact source (a compact HII region?).

References:

Last updated: 20 AUG 1996


G357.7+0.3

Radio: Non-thermal shell in complex region.

References:

Last updated: 28 JUN 1995


G359.0-0.9

Radio: Incomplete shell.

References:

Last updated: 28 JUN 1995


G359.1-0.5

Radio: Non-thermal shell in complex region, crossed by the ``snake".
Point sources: Several compact radio sources near centre, OH masers around edge.

References:

Last updated: 20 AUG 1996


G359.1+0.9

Radio: Shell, brightest in E.

References:

Last updated: 30 JUN 1995


Dave Green/MRAO, Cambridge, UK/D.A.Green@mrao.cam.ac.uk