Note: this is an archived version which has been superseded.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 (270°<l<315°)

G272.2-3.2

Right Ascension: 09 05 15
Declination: -51 50
Size (/arcmin): 15?
Type: S?
Flux density at 1 GHz (/Jy): 0.4
Spectral Index: 0.6

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

References:

Greiner et al. 1994, A&A, 286, L35. ROSAT observations, plus optical. ADS
Duncan et al. 1997, MNRAS, 289, 97. Parkes 64-m at 1.4 GHz (18': S=0.38±0.09) 2.4 GHz (10'.6: S=0.25±0.04) and 4.8 GHz (5'.7: S=0.17±0.02), MOST at 843 MHz (45"×70": S=0.45±0.10), and ATCA at 2.4 GHz (37"×52"), plus ROSAT observations. ADS

Last updated: 13 AUG 1998

G279.0+1.1

Right Ascension: 09 56 00
Declination: -53 00
Size (/arcmin): 95
Type: S
Flux density at 1 GHz (/Jy): 30?
Spectral Index: 0.6?

Radio: Faint, incomplete shell.
Point sources: Pulsar nearby.

References:

Woermann & Jonas 1988, MNRAS, 234, 971. Hartesbeesthoek 26-m at 1.6 (30': S=25.2±4) and 2.3 GHz (20': S=20.7±3). ADS
Duncan et al. 1995, MNRAS, 277, 319. Parkes 64-m at 1.4 (18': S=28±3) and 2.4 GHz (11': S=20±2), including polarization. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×53") of part. ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G284.3-1.8 MSH 10-53

Right Ascension: 10 16 30
Declination: -58 45
Size (/arcmin): 24?
Type: S
Flux density at 1 GHz (/Jy): 11?
Spectral Index: 0.3?

Notes: Has been called G284.2-1.8.

Radio: Incomplete, poorly defined shell.

References:

Ruiz & May 1986, ApJ, 309, 667. CO and optical observations. ADS
Milne et al. 1989, PASAu, 8, 187. MOST at 843 MHz (43"×50") and Parkes 64-m at 8.4 GHz (3': S=5.4±0.8) including polarization, plus earlier flux densities. ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m and ATCA OH observations. ADS

Last updated: 19 AUG 1998

G286.5-1.2

Right Ascension: 10 33 50
Declination: -59 26
Size (/arcmin): 26×6
Type: S?
Flux density at 1 GHz (/Jy): 1.4?
Spectral Index: ?

Radio: Double, elongated arc.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×50": S=1.6). ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G289.7-0.3

Right Ascension: 10 59 10
Declination: -60 02
Size (/arcmin): 18×14
Type: S
Flux density at 1 GHz (/Jy): 6.2
Spectral Index: 0.2?

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

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×50": S=6.4±0.5), plus Parkes 64-m at 4.5 GHz (S=7.5±2.5) and 8.55 GHz (S=3.6±0.9). ADS

Last updated: 21 AUG 1996

G290.1-0.8 MSH 11-61A

Right Ascension: 11 01 00
Declination: -60 40
Size (/arcmin): 19×14
Type: S
Flux density at 1 GHz (/Jy): 42
Spectral Index: 0.4

Radio: Elongated, clumpy shell.
Optical: Filaments detected.
X-ray: Detected.
Point sources: Pulsar nearby.

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4'.4: S=20.2). ADS
Elliot & Malin 1979, MNRAS, 186, 45P. Optical image and spectra. ADS
Kirshner & Winkler 1979, ApJ, 227, 853. Optical. ADS
Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×50"). ADS
Milne et al. 1989, PASAu, 8, 187. MOST at 843 MHz (43"×49": S=45±11), and Parkes 64-m at 8.4 GHz (3': S=19.5±1.0), including polarization. ADS
Seward 1990, ApJS, 73, 781. IPC observations. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=43). ADS
Rosado et al. 1996, A&A, 315, 243. Optical kinematics. ADS
Kaspi et al. 1997, ApJ, 485, 820. Pulsar detection. ADS
Gotthelf & Kaspi 1998, ApJ, 497, L29. ASCA observations of pulsar. ADS

Last updated: 17 AUG 1998

G291.0-0.1 (MSH 11-62)

Right Ascension: 11 09 45
Declination: -60 22
Size (/arcmin): 15×13
Type: C
Flux density at 1 GHz (/Jy): 16
Spectral Index: 0.29

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

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Roger et al. 1986, MNRAS, 219, 815. MOST at 843 MHz (43"×50": S=17.2±1.0), and Parkes 64-m at 5 and 8.4 GHz (4'.6 and 3': S=10.4±0.4 and 9'.1±0.2), with polarization. ADS
Wilson 1986, ApJ, 302, 718. IPC observations. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=12.7). ADS
Harrus et al. 1998, ApJ, 499, 273. ASCA observations. ADS

Last updated: 13 AUG 1998

G292.0+1.8 MSH 11-54

Right Ascension: 11 22 20
Declination: -59 00
Size (/arcmin): 12×8
Type: C?
Flux density at 1 GHz (/Jy): 15
Spectral Index: 0.4

Radio: Centrally brightened source surrounded by a plateau of faint emission.
Optical: Oxygen rich.
X-ray: Ring of emission.

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Goss et al. 1979, MNRAS, 188, 357. Optical spectra. ADS
Lockhart et al. 1977, MNRAS, 179, 147. Fleurs at 1415 MHz (50": S=13.0). ADS
Clark et al. 1980, MNRAS, 193, 129. X-ray spectrum. ADS
Tuohy et al. 1982, ApJ, 260, L65. HRI observations. ADS
Dopita & Tuohy 1984, ApJ, 282, 135. Optical spectra. ADS
Braun et al. 1986, A&A, 162, 259. MOST at 843 MHz (0'.8) and IRAS. ADS
Hughes & Singh 1994, ApJ, 422, 126. EXOSAT spectrum. ADS
Sutherland & Dopita 1995, ApJ, 439, 365. Spectrophotometry. ADS

Last updated: 14 AUG 1998

G293.8+0.6

Right Ascension: 11 32 40
Declination: -60 37
Size (/arcmin): 20
Type: C
Flux density at 1 GHz (/Jy): 5?
Spectral Index: 0.6?

Radio: Central source, with faint extended plateau.

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=9.0) and Parkes 64-m at 5 GHz (4': S=2.1). ADS
Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×51"). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=2.6). ADS

Last updated: 21 AUG 1996

G294.1-0.0

Right Ascension: 11 33 50
Declination: -61 22
Size (/arcmin): 40
Type: S
Flux density at 1 GHz (/Jy): >2?
Spectral Index: ?

Radio: Faint shell.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S>2). ADS

Last updated: 21 AUG 1996

G296.1-0.5

Right Ascension: 11 48 40
Declination: -62 17
Size (/arcmin): 37×25
Type: S
Flux density at 1 GHz (/Jy): 8?
Spectral Index: 0.6?

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: Detected.

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=6.9) and Parkes 64-m at 5 GHz (4': S>0.74) poor 5-GHz map (of G296.1-0.7). ADS
Longmore et al. 1977, MNRAS, 181, 541. Optical spectra. ADS
van den Bergh 1978, ApJS, 38, 119. Optical. ADS
Markert et al. 1981, ApJ, 248, L17. IPC observations. ADS
Caswell & Barnes 1983, ApJ, 271, L55. Molonglo at 408 MHz (3': S=12.4). ADS
Bignami et al. 1986, ApJ, 302, 606. EXOSAT, IPC and HRI observations. ADS
Hwang & Markert 1994, ApJ, 431, 819. ROSAT observations. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S>2.4). ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 19 AUG 1998

G296.5+10.0 PKS 1209-51/52

Right Ascension: 12 07 00
Declination: -52 10
Size (/arcmin): 90×65
Type: S
Flux density at 1 GHz (/Jy): 48
Spectral Index: 0.5

Notes: Has been called G296.5+9.7.

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

References:

Irvine & Irvine 1974, ApJ, 192, L111. Optical.
Danziger & Dennefeld 1976, PASP, 88, 44. Optical spectra. ADS
Dickel & Milne 1976, AuJPh, 29, 435. Comparison of earlier Parkes 64-m maps at 2.7 GHz (8'.4) and 5 GHz (4'.4). ADS
Tuohy et al. 1979, ApJ, 230, L27. X-ray detection with HEAO-1 A2 experiment. ADS
Ruiz 1983, AJ, 88, 1210. Optical spectra. ADS
Dubner et al. 1986, AJ, 91, 343. Argentine 30-m dish at 1.4 GHz (34'), plus HI. ADS
Kellett et al. 1987, MNRAS, 225, 199. EXOSAT of the west of the remnant, including the compact source. ADS
Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×56"). ADS
Matsui et al. 1988, ApJ, 329, 838. IPC and HRI observations, including compact source. ADS
Roger et al. 1988, ApJ, 332, 940. MOST at 843 MHz (44"×56"). ADS
Bignami et al. 1992, ApJ, 389, L67. Optical in vicinity of X-ray source. ADS
Milne & Haynes 1994, MNRAS, 270, 106. Parkes 64-m at 2.4 GHz (8'.3: S=33±3), 4.8 GHz (4'.5: S=23.3±3) and 8.4 GHz (3'.0: 18.8±3), including polarization and review of flux densities. ADS
Mereghetti et al. 1996, ApJ, 464, 842. Radio, optical and X-tray observations of central source. ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m and ATCA OH observations. ADS
Vasisht et al. 1997, ApJ, 476, L43. ASCA observations of neutron star. ADS
Zavlin et al. 1998, A&A, 331, 821. ROSAT and ASCA observations of neutron star. ADS

Last updated: 17 AUG 1998

G296.8-0.3 1156-62

Right Ascension: 11 56 00
Declination: -62 18
Size (/arcmin): 20×14
Type: S
Flux density at 1 GHz (/Jy): 9
Spectral Index: 0.6

Radio: Shell, brighter to the NW.
Distance: HI absorption gives 9.6±0.6 kpc.
X-ray: Detected.

References:

Caswell et al. 1975, AuJPA, 37, 39. Molonglo at 408 MHz (3': S=15.0) and Parkes 64-m at 5 GHz (4': S=3.2). ADS
Dickel & Milne 1976, AuJPh, 29, 435. Comparison of earlier Parkes 64-m maps at 2.7 GHz (8'.4) and 5 GHz (4'.4). ADS
Hwang & Markert 1994, ApJ, 431, 819. ROSAT observations. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=9.2). ADS
Gaensler et al. 1998, MNRAS, 296, 813. ATCA at 1.3 GHz (22"×24": S=7.0±0.3), including polarisation and HI observations, plus review of flux densities. ADS

Last updated: 19 AUG 1998

G298.5-0.3

Right Ascension: 12 10 00
Declination: -62 35
Size (/arcmin): 5?
Type: ?
Flux density at 1 GHz (/Jy): 5?
Spectral Index: 0.4?

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

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Hwang & Markert 1994, ApJ, 431, 819. ROSAT upper limit. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=1.8). ADS

Last updated: 21 AUG 1996

G298.6-0.0

Right Ascension: 12 11 00
Declination: -62 20
Size (/arcmin): 12×9
Type: S
Flux density at 1 GHz (/Jy): 5?
Spectral Index: 0.3

Notes: Has been called G298.6-0.1.

Radio: Incomplete shell, in complex region.

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×50"). ADS
Hwang & Markert 1994, ApJ, 431, 819. ROSAT upper limit. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=7.4). ADS

Last updated: 21 AUG 1996

G299.2-2.9

Right Ascension: 12 12 30
Declination: -65 13
Size (/arcmin): 18×11
Type: S
Flux density at 1 GHz (/Jy): 0.5?
Spectral Index: ?

Radio: Faint source.
X-ray: Centrally brightened.
Optical: Filaments in W.

References:

Busser et al. 1996, A&A, 310, L1. ROSAT detection, plus optical studies. ADS
Slane et al. 1996, ApJ, 465, 840. Einstein, IRAS and radio observations. ADS

Last updated: 17 AUG 1998

G299.6-0.5

Right Ascension: 12 19 00
Declination: -62 52
Size (/arcmin): 13
Type: S
Flux density at 1 GHz (/Jy): 1.0?
Spectral Index: ?

Radio: Faint shell, brightest to E.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=1.1). ADS

Last updated: 21 AUG 1996

G301.4-1.0

Right Ascension: 12 35 00
Declination: -63 33
Size (/arcmin): 37×23
Type: S
Flux density at 1 GHz (/Jy): 2.1?
Spectral Index: ?

Radio: Faint, incomplete shell, with possible extensionm to southwest.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=2.3). ADS

Last updated: 21 AUG 1996

G302.3+0.7

Right Ascension: 12 42 55
Declination: -61 52
Size (/arcmin): 17
Type: S
Flux density at 1 GHz (/Jy): 5?
Spectral Index: 0.4?

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

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=7.5) and Parkes 64-m at 5 GHz (4': S=3.0). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=3.2). ADS
Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS

Last updated: 21 AUG 1996

G304.6+0.1 Kes 17

Right Ascension: 13 02 50
Declination: -62 26
Size (/arcmin): 8
Type: S
Flux density at 1 GHz (/Jy): 14
Spectral Index: 0.5

Radio: Incomplete shell.
Distance: Possible limit of >9.7 kpc from HI absorption.

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4'.4: S=6.9). ADS
Caswell et al. 1975, A&A, 45, 239. Parkes HI absorption. ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=18). ADS
Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS

Last updated: 21 AUG 1996

G308.1-0.7

Right Ascension: 13 34 10
Declination: -62 49
Size (/arcmin): 13
Type: S
Flux density at 1 GHz (/Jy): 1.2?
Spectral Index: ?

Radio: Faint shell.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=1.3). ADS

Last updated: 21 AUG 1996

G308.8-0.1

Right Ascension: 13 39 00
Declination: -62 08
Size (/arcmin): 20×30?
Type: C?
Flux density at 1 GHz (/Jy): 15?
Spectral Index: 0.4?

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

Radio: Bright ridge in north, and arc to south.
Point sources: Pulsar near centre of remnant.

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=16.7) and Parkes 64-m at 5 GHz (4': S=7.0). ADS
Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4'.4: S=6.5). ADS
Caswell et al. 1981, MNRAS, 195, 89. FIRST at 1415 MHz (50"). ADS
Wilson 1986, ApJ, 302, 718. Lack of detection with IPC. ADS
Caswell et al. 1992, ApJ, 399, L151. MOST at 843 MHz (43"×49"). ADS
Kaspi et al. 1992, ApJ, 399, L155. Pulsar observations. ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G309.2-0.6

Right Ascension: 13 43 00
Declination: -62 39
Size (/arcmin): 15×12
Type: S
Flux density at 1 GHz (/Jy): 7?
Spectral Index: 0.4?

Notes: Has been called G309.2-0.7.

Radio: Distorted shell.

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=10.0) and Parkes 64-m at 5 GHz (4': S=3.9). ADS
Caswell et al. 1981, MNRAS, 195, 89. FIRST at 1415 MHz (1'.5). ADS
Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×50"). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×48": S=6). ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G309.8+0.0

Right Ascension: 13 47 00
Declination: -61 50
Size (/arcmin): 25×19
Type: S
Flux density at 1 GHz (/Jy): 17
Spectral Index: 0.5

Radio: Distorted shell.
Point sources: Steep radio spectrum source near the centre of the remnant.

References:

Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=26.4) and Parkes 64-m at 5 GHz (4': S=7.4). ADS
Caswell et al. 1980, MNRAS, 190, 881. FIRST at 1415 MHz (1'). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S>8.8). ADS
Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G310.6-0.3 Kes 20B

Right Ascension: 14 01 40
Declination: -62 23
Size (/arcmin): 8
Type: S
Flux density at 1 GHz (/Jy): 5?
Spectral Index: ?

Radio: Asymmetric shell.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=5.4). ADS

Last updated: 21 AUG 1996

G310.8-0.4 Kes 20A

Right Ascension: 14 03 40
Declination: -62 31
Size (/arcmin): 12
Type: S
Flux density at 1 GHz (/Jy): 6?
Spectral Index: ?

Radio: Arc in E, in complex region.

References:

Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=6.9). ADS

Last updated: 21 AUG 1996

G311.5-0.3

Right Ascension: 14 02 00
Declination: -61 44
Size (/arcmin): 5
Type: S
Flux density at 1 GHz (/Jy): 3?
Spectral Index: 0.5

Radio: Shell, not well resolved.

References:

Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4').
Caswell & Barnes 1985, MNRAS, 216, 753. Molonglo at 408 MHz (3'). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S=2.9). ADS

Last updated: 21 AUG 1996

G312.4-0.4

Right Ascension: 14 09 20
Declination: -61 29
Size (/arcmin): 38
Type: S
Flux density at 1 GHz (/Jy): 45
Spectral Index: 0.36

Radio: Irregular, incomplete shell.

References:

Caswell & Barnes 1985, MNRAS, 216, 753. Molonglo at 408 MHz (3': S=56). ADS
Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×49": S>19), plus Parkes 64-m at 4.5 GHz (S=30±2) and 8.55 GHz (S=17±4). ADS
Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS

Last updated: 21 AUG 1996

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