Note: this is an archived version which has been superseded.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 06 50
• Declination: −52 07
• Size (/arcmin): 15?
• Type: S?
• Flux density at 1 GHz (/Jy): 0.4
• Spectral Index: 0.6

Radio: Diffuse shell.

Optical: Detected.

X-ray: Centrally brightened.

References:

• Greiner et al. 1994, A&A, 286, L35. ROSAT observations, plus optical observations. ADS
• Duncan et al. 1997, MNRAS, 289, 97. Parkes 64-m at 1.4 GHz (18': S=0.38±0.09 Jy) 2.4 GHz (10.'6: S=0.25±0.04 Jy) and 4.8 GHz (5.'7: S=0.17±0.02 Jy), MOST at 843 MHz (45''×70'': S=0.45±0.10 Jy), and ATCA at 2.4 GHz (37''×52''), plus ROSAT observations. ADS
• Harrus et al. 2001, ApJ, 552, 614. ASCA and ROSAT observations, plus review of earlier observations. ADS
• Kamitsukasa et al. 2016, PASJ, 68, S7. Suzaku observations. ADS

Last updated: 12 Jun 2017

G279.0+1.1

• Right Ascension: 09 57 40
• Declination: −53 15
• Size (/arcmin): 95
• Type: S
• Flux density at 1 GHz (/Jy): 30?
• Spectral Index: 0.6?

Radio: Faint, incomplete shell.

Optical: Detected.

Point sources: Pulsar nearby.

References:

• Woermann & Jonas 1988, MNRAS, 234, 971. Hartesbeesthoek 26-m at 1.6 (30': S=25.2±4 Jy) and 2.3 GHz (20': S=20.7±3 Jy). ADS
• Duncan et al. 1995, MNRAS, 277, 319. Parkes 64-m at 1.4 (18': S=28±3 Jy) and 2.4 GHz (11': S=20±2 Jy), including polarisation. 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
• Stupar & Parker 2011, MNRAS, 414, 2282. Hα observations. ADS

Last updated: 25 Apr 2014

G284.3−1.8

MSH 10−53

• Right Ascension: 10 18 15
• Declination: −59 00
• 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.

Optical: Faint filament near edge.

Point sources: Central X-/γ-ray source.

References:

• Ruiz & May 1986, ApJ, 309, 667. CO and optical observations. ADS
• Milne et al. 1989, PASA, 8, 187. MOST at 843 MHz (43''×50'') and Parkes 64-m at 8.4 GHz (3': S=5.4±0.8 Jy) including polarisation, plus earlier flux densities. ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m and ATCA OH observations. ADS
• Camilo et al. 2001, ApJ, 557, L51. Observations of nearby pulsar. ADS
• Camilo et al. 2004, ApJ, 616, 1118. Chandra observations of pulsar and nebula. ADS
• Abramowski et al. 2012, A&A, 541, A5. γ-ray observations. ADS
• Williams et al. 2015, ApJ, 808, L19. Chandra observations. ADS

Last updated: 11 May 2017

G286.5−1.2

• Right Ascension: 10 35 40
• Declination: −59 42
• Size (/arcmin): 26×6
• Type: S?
• Flux density at 1 GHz (/Jy): 1.4?
• Spectral Index: ?

Radio: Double, elongated arc.

Optical: Detected.

References:

• Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43''×50'': S=1.6 Jy). ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS
• Stupar & Parker 2011, MNRAS, 414, 2282. Hα observations. ADS

Last updated: 25 Apr 2014

G289.7−0.3

• Right Ascension: 11 01 15
• Declination: −60 18
• 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 Jy), plus Parkes 64-m at 4.5 GHz (S=7.5±2.5 Jy) and 8.55 GHz (S=3.6±0.9 Jy). ADS

Last updated: 21 Aug 1996

G290.1−0.8

MSH 11−61A

• Right Ascension: 11 03 05
• Declination: −60 56
• 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: Centrally brightened.

Point sources: Pulsar nearby, with PWN and extended `jet' in X-rays.

Distance: HI absorption indicates 7±1 kpc.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS
• Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4.'4: S=20.2 Jy). ADS
• Elliott & Malin 1979, MNRAS, 186, 45P. Optical image and spectra. ADS
• Kirshner & Winkler 1979, ApJ, 227, 853. Optical observations. ADS
• Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44''×50''). ADS
• Milne et al. 1989, PASA, 8, 187. MOST at 843 MHz (43''×49'': S=45±11 Jy), and Parkes 64-m at 8.4 GHz (3': S=19.5±1.0 Jy), including polarisation. ADS
• Seward 1990, ApJS, 73, 781. Einstein observations. ADS
• Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43''×49'': S=43 Jy). 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
• Slane et al. 2002, ApJ, 564, 284. ASCA observations. ADS
• Filipović et al. 2005, SerAJ, 170, 47. ATCA at 1.4 GHz (21''), plus other observations, including CO of surroundings. ADS
• Reynoso et al. 2006, MNRAS, 369, 416. ATCA at 1.4 GHz (22."5×25."0) including HI. ADS
• Pavan et al. 2014, A&A, 562, A122. Chandra and ATCA observations at 2 GHz (4."1 × 5."2) of PWN. ADS
• Halpern et al. 2014, ApJ, 795, L27. XMM-Newton observations of PWN. ADS
• Auchettl et al. 2015, ApJ, 810, 43. γ-ray and Suzaku observations. ADS
• Kamitsukasa et al. 2015, PASJ, 67, 16. Suzaku observations. ADS
• Pavan et al. 2016, A&A, 591, A91. Chandra observations, including PWN and `jet'. ADS

Last updated: 13 May 2017

G291.0−0.1

(MSH 11−62)

• Right Ascension: 11 11 54
• Declination: −60 38
• Size (/arcmin): 15×13
• Type: C
• Flux density at 1 GHz (/Jy): 16
• Spectral Index: 0.29

Radio: Centrally brightened core, with surrounding arcs.

Optical: Detected.

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'). ADS
• Roger et al. 1986, MNRAS, 219, 815. MOST at 843 MHz (43''×50'': S=17.2±1.0 Jy), and Parkes 64-m at 5 and 8.4 GHz (4.'6 and 3': S=10.4±0.4 Jy and 9.'1±0.2), with polarisation. ADS
• Wilson 1986, ApJ, 302, 718. Einstein observations. ADS
• Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43''×49'': S=12.7 Jy). ADS
• Harrus et al. 1998, ApJ, 499, 273. ASCA observations. ADS
• Stupar & Parker 2011, MNRAS, 414, 2282. Hα observations. ADS
• Slane et al. 2012, ApJ, 749, 131. Chandra, XMM-Newton and Fermi observations. ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS

Last updated: 13 May 2017

G292.0+1.8

MSH 11−54

• Right Ascension: 11 24 36
• Declination: −59 16
• 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, with diffuse central nebula and pulsar.

Point sources: Central pulsar.

Distance: HI absorption implies 6.0 kpc.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS
• Lockhart et al. 1977, MNRAS, 179, 147. Fleurs at 1415 MHz (50'': S=13.0 Jy). ADS
• Goss et al. 1979, MNRAS, 188, 357. Optical spectra. ADS
• Clark et al. 1980, MNRAS, 193, 129. X-ray spectrum. ADS
• Tuohy et al. 1982, ApJ, 260, L65. Einstein 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
• Hughes et al. 2001, ApJ, 559, L153. Chandra observations, including central nebula. ADS
• Park et al. 2002, ApJ, 564, L39. Chandra observations. ADS
• Camilo et al. 2002, ApJ, 567, L71. Pulsar detection. ADS
• Gonzalez & Safi-Harb 2003, ApJ, 583, L91. Chandra observations. ADS
• Hughes et al. 2003, ApJ, 591, L139. Chandra observations of pulsar. ADS
• Gaensler & Wallace 2003, ApJ, 594, 326. ATCA at 1.4, 2.3 and 5.2 GHz (9."6×8."0, 7."2×6."2 and 5."5×4."8: S=11.9±0.1, 11.4±0.1 and 8.8±0.1), plus HI observations. ADS
• Park et al. 2004, ApJ, 602, L33. Chandra observations. ADS
• Vink et al. 2004, NuPhS, 132, 62. XMM-Newton observations. ADS
• Ghavamian et al. 2005, ApJ, 635, 365. Optical imaging spectroscopy. ADS
• Winkler & Long 2006, AJ, 132, 360. Optical observations. ADS
• Park et al. 2007, ApJ, 670, L121. Chandra observations. ADS
• Zharikov et al. 2008, A&A, 492, 805. Possible optical counterpart to pulsar and nebula. ADS
• Winkler et al. 2009, ApJ, 692, 1489. Optical proper motion studies. ADS
• Ghavamian et al. 2009, ApJ, 696, 1307. Spitzer spectroscopy. ADS
• Lee et al. 2009, ApJ, 706, 441. IR observations. ADS
• Lee et al. 2010, ApJ, 711, 861. Chandra observations. ADS
• Ghavamian et al. 2012, ApJ, 750, 39. Spitzer observations. ADS
• Zharikov et al. 2013, A&A, 554, A120. IR of pulsar wind nebula. ADS
• Yamaguchi et al. 2014, ApJ, 785, L27. Suzaku observations. ADS
• Kamitsukasa et al. 2014, PASJ, 66, 64. Suzaku observations. ADS
• Bhalerao et al. 2015, ApJ, 800, 65. Chandra observations. ADS
• Koo et al. 2016, ApJ, 821, 20. Spitzer and Herschel flux densities (and comparison with X-ray properties). ADS
• Ghavamian & Williams 2016, ApJ, 831, 188. Spitzer observations. ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS

Last updated: 16 Jun 2017

G292.2−0.5

• Right Ascension: 11 19 20
• Declination: −61 28
• Size (/arcmin): 20×15
• Type: S
• Flux density at 1 GHz (/Jy): 7
• Spectral Index: 0.5

Radio: Shell.

X-ray: Shell, brighter to W, with central nebula.

Point sources: Central, young pulsar.

Distance: HI absorption indicates 8.4 kpc.

References:

• Camilo et al. 2000, ApJ, 541, 367. Pulsar detection. ADS
• Crawford et al. 2001, ApJ, 554, 152. ATCA at 1.4 GHz (29''×25'': S=5.6×0.3 Jy) and 2.5 GHz (21''×20''). ADS
• Pivovaroff et al. 2001, ApJ, 554, 161. ROSAT and ASCA observations. ADS
• Gonzalez & Safi-Harb 2003, ApJ, 591, L143. Chandra observations of pulsar. ADS
• Caswell et al. 2004, MNRAS, 352, 1405. ATCA at 5 GHz (1': S=2.8 Jy), including polarisation, and 1.4 GHz for HI absorption. ADS
• Gonzalez & Safi-Harb 2005, ApJ, 619, 856. Chandra observations. ADS
• Gonzalez et al. 2005, ApJ, 630, 489. XMM-Newton observations of pulsar. ADS
• Safi-Harb et al. 2008, ApJ, 684, 532. Chandra observations of pulsar and nebula. ADS
• Kumar et al. 2012, ApJ, 754, 96. Chandra and XMM-Newton observations. ADS
• Ng et al. 2012, ApJ, 761, 65. XMM-Newton observations. ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS

Last updated: 13 May 2017

G293.8+0.6

• Right Ascension: 11 35 00
• Declination: −60 54
• 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 Jy) and Parkes 64-m at 5 GHz (4': S=2.1 Jy). 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 Jy). ADS

Last updated: 21 Aug 1996

G294.1−0.0

• Right Ascension: 11 36 10
• Declination: −61 38
• 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 51 10
• Declination: −62 34
• 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: Irregular, incomplete shell.

References:

• Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=6.9 Jy) and Parkes 64-m at 5 GHz (4': S>0.74). ADS
• Longmore et al. 1977, MNRAS, 181, 541. Optical spectra. ADS
• van den Bergh 1978, ApJS, 38, 119. Optical observations. ADS
• Markert et al. 1981, ApJ, 248, L17. Einstein observations. ADS
• Caswell & Barnes 1983, ApJ, 271, L55. Molonglo at 408 MHz (3': S=12.4 Jy). ADS
• Bignami et al. 1986, ApJ, 302, 606. EXOSAT and Einstein 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
• Castro et al. 2011, ApJ, 734, 86. XMM-Newton observations. ADS
• Gök & Sezer 2012, MNRAS, 419, 1603. Suzaku observations. ADS

Last updated: 24 Apr 2014

G296.5+10.0

PKS 1209−51/52

• Right Ascension: 12 09 40
• Declination: −52 25
• 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 pulsar.

Point sources: Central pulsar.

References:

• Irvine & Irvine 1974, ApJ, 192, L111. Optical observations. ADS
• 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. Einstein 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 Jy), 4.8 GHz (4.'5: S=23.3±3 Jy) and 8.4 GHz (3.'0: 18.8±3), including polarisation and review of flux densities. ADS
• Mereghetti et al. 1996, ApJ, 464, 842. Radio, optical and X-ray 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
• Giacani et al. 2000, AJ, 119, 281. ATCA at 1.4 GHz (2.'7×4.'0) for HI studies. ADS
• Zavlin et al. 2000, ApJ, 540, L25. Chandra observations of central pulsar. ADS
• Gotthelf & Halpern 2007, ApJ, 664, L35. X-ray timing observations of pulsar. ADS
• Harvey-Smith et al. 2010, ApJ, 712, 1157. ATCA at 1.4 GHz (1.'8×3.'3), including polarisation. ADS
• Araya 2013, MNRAS, 434, 2202. Fermi observations. ADS
• Halpern & Gotthelf 2015, ApJ, 812, 61. Two epoch Chandra observations for pulsar proper motion. ADS
• Arnaud et al. 2016, A&A, 586, A134. Planck flux densities at 4 frequencies between 30 and 100 GHz. ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS

Last updated: 13 May 2017

G296.7−0.9

• Right Ascension: 11 55 30
• Declination: −63 08
• Size (/arcmin): 15×8
• Type: S
• Flux density at 1 GHz (/Jy): 3
• Spectral Index: 0.5

Radio: Bilateral shell.

X-ray: Brighter to SE.

References:

• Schaudel et al. 2002, ASPC, 271, 391. ROSAT observations. ADS
• Robbins et al. 2012, MNRAS, 419, 2623. ATCA at 1.4 GHz (33''×45'': S=2.5±0.2 Jy), plus MOST at 843 MHz (43''×49''), plus other observations. ADS
• Prinz & Becker 2013, A&A, 550, A33. XMM-Newton observations. ADS
• Green et al. 2014, PASA, 31, 42. Radio observations at 843 MHz (45''×50''). ADS

Last updated: 12 Jun 2017

G296.8−0.3

1156−62

• Right Ascension: 11 58 30
• Declination: −62 35
• Size (/arcmin): 20×14
• Type: S
• Flux density at 1 GHz (/Jy): 9
• Spectral Index: 0.6

Radio: Shell, brighter to the NW.

X-ray: Detected.

Distance: HI absorption gives 9.6 kpc.

References:

• Caswell et al. 1975, AuJPA, 37, 39. Molonglo at 408 MHz (3': S=15.0 Jy) and Parkes 64-m at 5 GHz (4': S=3.2 Jy). 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 Jy). ADS
• Gaensler et al. 1998, MNRAS, 296, 813. ATCA at 1.3 GHz (22''×24'': S=7.0±0.3 Jy), including polarisation and HI observations, plus review of flux densities. ADS
• Sánchez-Ayaso et al. 2012, Ap&SS, 337, 573. XMM-Newton and IR observations. ADS

Last updated: 24 Apr 2014

G298.5−0.3

• Right Ascension: 12 12 40
• Declination: −62 52
• 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'). 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=1.8 Jy). ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer possible detection. ADS

Last updated: 16 Mar 2009

G298.6−0.0

• Right Ascension: 12 13 41
• Declination: −62 37
• 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.

X-ray: Centrally brightened.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS
• 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 Jy). ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer possible detection. ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS
• Bamba et al. 2016, PASJ, 68, S5. Suzaku observations. ADS

Last updated: 13 May 2017

G299.2−2.9

• Right Ascension: 12 15 13
• Declination: −65 30
• Size (/arcmin): 18×11
• Type: S
• Flux density at 1 GHz (/Jy): 0.5?
• Spectral Index: ?

Radio: Faint source.

Optical: Filaments in W.

X-ray: Centrally brightened with shell at higher energies.

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
• Bai & Wang 2000, ApJ, 539, 760. ASCA observations. ADS
• Park et al. 2007, ApJ, 665, 1173. Chandra observations. ADS
• Part et al. 2014, ApJ, 792, L20. Chandra observations. ADS

Last updated: 5 May 2017

G299.6−0.5

• Right Ascension: 12 21 45
• Declination: −63 09
• 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 Jy). ADS

Last updated: 21 Aug 1996

G301.4−1.0

• Right Ascension: 12 37 55
• Declination: −63 49
• Size (/arcmin): 37×23
• Type: S
• Flux density at 1 GHz (/Jy): 2.1?
• Spectral Index: ?

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

References:

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

Last updated: 21 Aug 1996

G302.3+0.7

• Right Ascension: 12 45 55
• Declination: −62 08
• 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 Jy) and Parkes 64-m at 5 GHz (4': S=3.0 Jy). ADS
• Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43''×49'': S=3.2 Jy). 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 05 59
• Declination: −62 42
• Size (/arcmin): 8
• Type: S
• Flux density at 1 GHz (/Jy): 14
• Spectral Index: 0.5

Radio: Incomplete shell.

X-ray: Detected.

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'). ADS
• Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4.'4: S=6.9 Jy). 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 Jy). ADS
• Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer observations. ADS
• Hewitt et al. 2009, ApJ, 694, 1266. Spitzer spectroscopy. ADS
• Combi et al. 2010, A&A, 523, A76. XMM-Newton observations ADS
• Lee et al. 2011, ApJ, 740, 31. Akari and Spitzer observations. ADS
• Wu et al. 2011, ApJ, 740, L12. Fermi observations. ADS
• Anderson et al. 2011, ApJ, 742, 7. Spitzer observations. ADS
• Gök & Sezer 2012, MNRAS, 423, 1215. Suzaku observations. ADS
• Gelfand et al. 2013, ApJ, 777, 148. ATCA at 1.4 GHz (8''×23'': S=10.9±0.4 Jy), plus other observations. ADS
• Pannuti et al. 2014, AJ, 147, 55. ASCA and XMM-Newton observations. ADS
• Koo et al. 2016, ApJ, 821, 20. Spitzer and Herschel flux densities (and comparison with X-ray properties). ADS
• Acero et al. 2016, ApJS, 224, 8. γ-ray observations. ADS
• Washino et al. 2016, PASJ, 68, S4. Suzaku observations. ADS

Last updated: 16 Jun 2017

G306.3−0.9

• Right Ascension: 13 21 50
• Declination: −63 34
• Size (/arcmin): 4
• Type: S?
• Flux density at 1 GHz (/Jy): 0.16?
• Spectral Index: 0.5?

Radio: Diffuse emission.

X-ray: Partial shell.

References:

• Reynolds et al. 2013, ApJ, 766, 112. Chandra observations, and ATCA at 5.5 GHz (23''×26''), and 9 GHz. ADS
• Combi et al. 2016, A&A, 592, A125. XMM-Newton and Chandra observations. ADS

Last updated: 13 May 2017

G308.1−0.7

• Right Ascension: 13 37 37
• Declination: −63 04
• 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 Jy). ADS

Last updated: 21 Aug 1996

G308.4−1.4

• Right Ascension: 13 41 30
• Declination: −63 44
• Size (/arcmin): 12×6?
• Type: S?
• Flux density at 1 GHz (/Jy): 0.4?
• Spectral Index: ?

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

Radio: Complex structure, with multiple arcs.

X-ray: Limb brightened partial shell in W.

References:

• Schaudel et al. 2002, ASPC, 271, 391. ROSAT observations. ADS
• Prinz & Becker 2012, A&A, 544, A7. ATCA at 1.4 GHz (53''×64'': S=0.33 Jy) and 2.5 GHz (29''×35'': S=0.24 Jy), plus Chandra and other observations. ADS
• Hui et al. 2012, ApJ, 750, 7. XMM-Newton and other observations. ADS
• De Horta et al. 2013, MNRAS, 428, 1980. ATCA at 1.4 GHz (54''×65'') and 2.5 GHz (29''×35''), plus other observations. ADS
• Green et al. 2014, PASA, 31, 42. Radio observations at 843 MHz (45''×50''). ADS

Last updated: 7 May 2014

G308.8−0.1

• Right Ascension: 13 42 30
• Declination: −62 23
• Size (/arcmin): 30×20?
• 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 Jy) and Parkes 64-m at 5 GHz (4': S=7.0 Jy). ADS
• Milne & Dickel 1975, AuJPh, 28, 209. Parkes 64-m at 5 GHz (4.'4: S=6.5 Jy). ADS
• Caswell et al. 1981, MNRAS, 195, 89. FIRST at 1415 MHz (50''). ADS
• Wilson 1986, ApJ, 302, 718. Lack of detection with Einstein. 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
• Reach et al. 2006, AJ, 131, 1479. Spitzer possible detection. ADS

Last updated: 16 Mar 2009

G309.2−0.6

• Right Ascension: 13 46 31
• Declination: −62 54
• 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.

X-ray: Extended emission, with unrelated central source.

References:

• Clark et al. 1975, AuJPA, 37, 1. Molonglo at 408 MHz (3': S=10.0 Jy) and Parkes 64-m at 5 GHz (4': S=3.9 Jy). 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 Jy). ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS
• Gaensler et al. 1998, MNRAS, 299, 812. ATCA at 1.3 GHz (24''×23'': S=5.2±0.2 Jy). ADS
• Rakowski et al. 2001, ApJ, 548, 258. ASCA and ROSAT observations. ADS
• Rakowski et al. 2006, ApJ, 649, L111. Observations of central source. ADS
• Safi-Harb et al. 2007, ApJ, 659, 407. Observations of central source. ADS

Last updated: 27 Mar 2009

G309.8+0.0

• Right Ascension: 13 50 30
• Declination: −62 05
• 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 Jy) and Parkes 64-m at 5 GHz (4': S=7.4 Jy). 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

G310.6−1.6

• Right Ascension: 14 00 45
• Declination: −63 26
• Size (/arcmin): 2.5
• Type: C?
• Flux density at 1 GHz (/Jy): ?
• Spectral Index: ?

X-ray: Bright central nebula, with faint shell.

Point sources: X-ray pulsar, and extended emission.

References:

• Tomsick et al. 2009, ApJ, 701, 811. Chandra observations. ADS
• Renaud et al. 2010, ApJ, 716, 663. Chandra and other observations. ADS

Last updated: 4 Jun 2017

G310.6−0.3

Kes 20B

• Right Ascension: 13 58 00
• Declination: −62 09
• 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 Jy). ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer possible detection. ADS

Last updated: 16 Mar 2009

G310.8−0.4

Kes 20A

• Right Ascension: 14 00 00
• Declination: −62 17
• 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 Jy). ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer observations. ADS
• Anderson et al. 2011, ApJ, 742, 7. Spitzer observations. ADS

Last updated: 28 Apr 2014

G311.5−0.3

• Right Ascension: 14 05 38
• Declination: −61 58
• Size (/arcmin): 5
• Type: S
• Flux density at 1 GHz (/Jy): 3?
• Spectral Index: 0.5

Radio: Shell, not well resolved.

X-ray: Detected.

References:

• Shaver & Goss 1970, AuJPA, 14, 133. Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS
• 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 Jy). ADS
• Reach et al. 2006, AJ, 131, 1479. Spitzer observations. ADS
• Anderson et al. 2011, ApJ, 742, 7. Spitzer observations. ADS
• Pannuti et al. 2014, AJ, 147, 55. ASCA observations. ADS

Last updated: 5 May 2017

G312.4−0.4

• Right Ascension: 14 13 00
• Declination: −61 44
• Size (/arcmin): 38
• Type: S
• Flux density at 1 GHz (/Jy): 45
• Spectral Index: 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.

References:

• Caswell & Barnes 1985, MNRAS, 216, 753. Molonglo at 408 MHz (3': S=56 Jy). 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 Jy) and 8.55 GHz (S=17±4 Jy). ADS
• Frail et al. 1996, AJ, 111, 1651. OH emission near remnant. ADS
• Roberts et al. 1999, ApJ, 515, 712. MOST at 843 MHz (43''×49''). ADS
• Case & Bhattacharya 1999, ApJ, 521, 246. Nearby γ-ray sources. ADS
• Doherty et al. 2003, MNRAS, 339, 1048. ATCA at 1.4 GHz (25'') plus HI absorption, and Chandra observations. ADS

Last updated: 28 Apr 2017

G312.5−3.0

• Right Ascension: 14 21 00
• Declination: −64 12
• Size (/arcmin): 20×18
• Type: S
• Flux density at 1 GHz (/Jy): 3.5?
• Spectral Index: ?

Radio: Distorted shell.

References:

• Duncan et al. 1995, MNRAS, 277, 36. Parkes 64-m at 2.4-GHz (10.'4) ADS
• Kane & Vaughan 2003, MNRAS, 344, 625. ATCA at 1.4 GHz (129''×116'') and 2.4 GHz (75''×67''). ADS

Last updated: 24 Apr 2014

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