4th quadrant Galactic SNRs (270°<l<315°)


G272.2−3.2 ADS: search fulltext or title/keyword/abstract

Radio: Diffuse shell.
Optical: Detected.
X-ray: Centrally brightened.

References:

Last updated: 13 Dec 2022


G279.0+1.1 ADS: search fulltext or title/keyword/abstract

Radio: Faint, incomplete shell.
Optical: Detected.
Point sources: Pulsar nearby.
Distance: Optical extinction suggests about 2.7 kpc.

References:

Last updated: 19 Dec 2022


G284.3−1.8 ADS: search fulltext or title/keyword/abstract

MSH 10−53

Notes: Has been called G284.2−1.8.

Radio: Incomplete, poorly defined shell.
Optical: Faint filament near edge.
X-ray: Diffuse emission, brighter in N and W.
Point sources: Central X-/γ-ray source, not thought to be related.
Distance: Optical extinction suggests about 5.5 kpc.

References:

Last updated: 9 Dec 2022


G286.5−1.2 ADS: search fulltext or title/keyword/abstract

Radio: Double, elongated arc.
Optical: Detected.

References:

Last updated: 25 Apr 2014


G289.7−0.3 ADS: search fulltext or title/keyword/abstract

Radio: Incomplete shell.
Point sources: Compact radio source near centre.

References:

Last updated: 21 Aug 1996


G290.1−0.8 ADS: search fulltext or title/keyword/abstract

MSH 11−61A

Radio: Elongated, clumpy shell.
Optical: Filaments detected.
X-ray: Centrally brightened.
Point sources: Pulsar nearby, with PWN and extended `jet' in X-rays.
Distance: HI absorption indicates 7±1 kpc.

References:

Last updated: 13 May 2017


G291.0−0.1 ADS: search fulltext or title/keyword/abstract

(MSH 11−62)

Radio: Centrally brightened core, with surrounding arcs.
Optical: Detected.
X-ray: Centrally brightened.
Point sources: Central compact X-ray source.

References:

Last updated: 13 May 2017


G292.0+1.8 ADS: search fulltext or title/keyword/abstract

MSH 11−54

Radio: Centrally brightened source surrounded by a plateau of faint emission.
Optical: Oxygen rich.
X-ray: Ring of emission, with diffuse central nebula and pulsar.
Point sources: Central pulsar.
Distance: HI absorption implies 6.0 kpc.

References:

Last updated: 15 Dec 2022


G292.2−0.5 ADS: search fulltext or title/keyword/abstract

Radio: Shell.
X-ray: Shell, brighter to W, with central nebula.
Point sources: Central, young pulsar.
Distance: HI absorption indicates 8.4 kpc.

References:

Last updated: 13 May 2017


G293.8+0.6 ADS: search fulltext or title/keyword/abstract

Radio: Central source, with faint extended plateau.

References:

Last updated: 21 Aug 1996


G294.1−0.0 ADS: search fulltext or title/keyword/abstract

Radio: Faint shell.

References:

Last updated: 21 Aug 1996


G296.1−0.5 ADS: search fulltext or title/keyword/abstract

Notes: Incorporates the previously catalogued remnant G296.1−0.7. Has been called G296.05−0.50.

Radio: Irregular shell, with nearby HII regions.
Optical: Detected.
X-ray: Irregular, incomplete shell.
Distance: Optical extinction suggests about 4.3 or 3.8 kpc.

References:

Last updated: 14 Dec 2022


G296.5+10.0 ADS: search fulltext or title/keyword/abstract

PKS 1209−51/52

Notes: Has been called G296.5+9.7, and erroneously G295.5+9.7.

Radio: Shell with two bright limbs.
Optical: Detected.
X-ray: Incomplete shell, with central pulsar.
Point sources: Central pulsar.

References:

Last updated: 9 Apr 2019


G296.7−0.9 ADS: search fulltext or title/keyword/abstract

Radio: Bilateral shell.
X-ray: Brighter to SE.

References:

Last updated: 12 Jun 2017


G296.8−0.3 ADS: search fulltext or title/keyword/abstract

1156−62

Radio: Shell, brighter to the NW.
X-ray: Detected.
Distance: HI absorption gives 9.6 kpc.

References:

Last updated: 24 Apr 2014


G298.5−0.3 ADS: search fulltext or title/keyword/abstract

Radio: Not well resolved, may be part of a larger ring?

References:

Last updated: 16 Mar 2009


G298.6−0.0 ADS: search fulltext or title/keyword/abstract

Notes: Has been called G298.6−0.1.

Radio: Incomplete shell, in complex region.
X-ray: Centrally brightened.

References:

Last updated: 13 Dec 2022


G299.2−2.9 ADS: search fulltext or title/keyword/abstract

Radio: Faint source.
Optical: Filaments in W.
X-ray: Centrally brightened with shell at higher energies.
Distance: HI column density suggests about 2.8 kpc.

References:

Last updated: 9 Dec 2022


G299.6−0.5 ADS: search fulltext or title/keyword/abstract

Radio: Faint shell, brightest to E.

References:

Last updated: 21 Aug 1996


G301.4−1.0 ADS: search fulltext or title/keyword/abstract

Radio: Faint, incomplete shell, with possible extension to SW.
Distance: Optical extinction suggests 2.7 kpc.

References:

Last updated: 14 Dec 2022


G302.3+0.7 ADS: search fulltext or title/keyword/abstract

Radio: Distorted shell, in complex region, with possibly associated filament.

References:

Last updated: 21 Aug 1996


G304.6+0.1 ADS: search fulltext or title/keyword/abstract

Kes 17

Radio: Incomplete shell.
X-ray: Detected.
Distance: Possible limit of >9.7 kpc from HI absorption.

References:

Last updated: 13 Dec 2022


G306.3−0.9 ADS: search fulltext or title/keyword/abstract

Radio: Diffuse emission.
X-ray: Partial shell.

References:

Last updated: 13 Dec 2022


G308.1−0.7 ADS: search fulltext or title/keyword/abstract

Radio: Faint shell.

References:

Last updated: 21 Aug 1996


G308.4−1.4 ADS: search fulltext or title/keyword/abstract

Notes: W part has been called G308.3−1.4.

Radio: Complex structure, with multiple arcs.
X-ray: Limb brightened partial shell in W.
Distance: HI column density suggests about 3.1 kpc.

References:

Last updated: 16 Dec 2022


G308.8−0.1 ADS: search fulltext or title/keyword/abstract

Notes: Incorporates previous catalogued remnant G308.7+0.0.

Radio: Bright ridge in N, and arc to S.
Point sources: Pulsar near centre of remnant.
Distance: Optical extinction suggests 3.9 kpc.

References:

Last updated: 14 Dec 2022


G309.2−0.6 ADS: search fulltext or title/keyword/abstract

Notes: Has been called G309.2−0.7.

Radio: Distorted shell.
X-ray: Extended emission, with unrelated central source.
Distance: HI column density suggests about 2.8 kpc.

References:

Last updated: 9 Dec 2022


G309.8+0.0 ADS: search fulltext or title/keyword/abstract

Radio: Distorted shell.
Point sources: Steep radio spectrum source near the centre of the remnant.
Distance: Optical extinction suggests 3.1 kpc.

References:

Last updated: 14 Dec 2022


G310.6−1.6 ADS: search fulltext or title/keyword/abstract

Radio: Not detected.
X-ray: Bright central nebula, with faint shell.
Point sources: X-ray pulsar, and extended emission.

References:

Last updated: 9 Dec 2022


G310.6−0.3 ADS: search fulltext or title/keyword/abstract

Kes 20B

Notes: Has been called G310.65−0.29.

Radio: Asymmetric shell.

References:

Last updated: 9 Apr 2019


G310.8−0.4 ADS: search fulltext or title/keyword/abstract

Kes 20A

Notes: Has been called G310.80−0.41.

Radio: Arc in E, in complex region.

References:

Last updated: 13 Dec 2022


G311.5−0.3 ADS: search fulltext or title/keyword/abstract

Notes: Has been called G311.52−0.37.

Radio: Shell, not well resolved.
X-ray: Detected.

References:

Last updated: 13 Dec 2022


G312.4−0.4 ADS: search fulltext or title/keyword/abstract

Notes: Has been called G312.44−0.36.

Radio: Irregular, incomplete shell.
X-ray: Weak emission in W.
Point sources: Nearby γ-ray sources and pulsars.
Distance: HI absorption suggests >6 kpc and possibly >14 kpc, optical extinction suggests 4.4 kpc.

References:

Last updated: 14 Dec 2022


G312.5−3.0 ADS: search fulltext or title/keyword/abstract

Radio: Distorted shell.

References:

Last updated: 24 Apr 2014

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