Note: this is an archived version which has been superseded.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

3rd quadrant Galactic SNRs

G180.0-1.7 S147

• Right Ascension: 05 36 00
• Declination: +27 50
• Size (/arcmin): 180
• Type: S
• Flux density at 1 GHz (/Jy): 65
• Spectral Index: varies

Radio: Large faint shell, with spectral break.

Optical: Wispy ring.

X-ray: Possible detection.

Point sources: Pulsar within boundary.

References:

• van den Bergh et al. 1973, ApJS, 26, 19. Optical.
• Sofue et al. 1980, PASJ, 32, 1. Effelsberg 100-m at 5 GHz (2'.6) of parts. ADS
• Kundu et al. 1980, A&A, 92, 225. Effelsberg 100-m at 2.7 GHz (5'.5: S=34.9±4) and 1.6 GHz (10': S=60.2±6). ADS
• Angerhofer & Kundu 1981, AJ, 86, 1003. Arecibo at 430 MHz (9': S=97±20). ADS
• Fürst et al. 1982, A&A, 115, 428. Observations of compact radio sources near the remnant. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Fürst & Reich 1986, A&A, 163, 186. Effelsberg 100-m at 1.4, 2.7 and 4.7/5.0 GHz (9'.4, 4'.3 and 2'.4/2'.6). ADS
• Sauvageot et al. 1990, A&A, 227, 183. EXOSAT possible detection. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Anderson et al. 1996, ApJ, 468, L55. Pulsar detection. ADS

Last updated: 13 AUG 1998

G182.4+4.3

• Right Ascension: 06 05 00
• Declination: +29 00
• Size (/arcmin): 50
• Type: S
• Flux density at 1 GHz (/Jy): 1.2
• Spectral Index: 0.4

Radio: Incomplete shell.

References:

• Kothes et al. 1998, A&A, 331, 661. Effelsberg 100-m at 1.4, 2.7, 4.9 and 10.5 GHz (9'.4: S=0.36±0.08, 4'.4: S=0.25±0.04, 2'.5: S=0.20±0.02 and 1'.2: S=0.15±0.03), plus X-ray upper limit. ADS

Last updated: 14 AUG 1998

G184.6-5.8 Crab Nebula, 3C144, SN1054

• Right Ascension: 05 31 30
• Declination: +21 59
• Size (/arcmin): 7×5
• Type: F
• Flux density at 1 GHz (/Jy): 1040
• Spectral Index: 0.30

Notes: This is the remnant of the SN of AD1054.

Radio: Filled-centre, central pulsar, with faint `jet' (or tube) extending from the N edge.

Optical: Strongly polarized filaments, diffuse synchrotron emission, with `jet' faintly visible.

X-ray: Centrally brightened around the pulsar.

Point sources: Pulsar powering the remnant.

Distance: Proper motions and radial velocities give 2 kpc.

References:

• Trimble & Woltjer 1971, ApJ, 163, L97. Optical expansion for distance.
• Green et al. 1975, A&A, 44, 187. Effelsberg 100-m at 15.0 GHz (58": S=499.3±1.0). ADS
• Clark et al. 1983, MNRAS, 204, 415. 3-D optical structure. ADS
• Velusamy 1984, Natur, 308, 251. VLA at 1.4 GHz, radio detection of `jet'. ADS
• Harnden & Seward 1984, ApJ, 283, 279. X-ray observations. ADS
• Velusamy 1985, MNRAS, 212, 359. VLA at 1.4 GHz (15"). ADS
• Aller & Reynolds 1985, ApJ, 293, L73. Flux density decrease. ADS
• Mezger et al. 1986, A&A, 167, 145. 249-GHz map (120"). ADS
• Fesen & Gull 1986, ApJ, 306, 259. Deep [OIII] imagery of `jet'. ADS
• Morsi & Reich 1987, A&AS, 69, 533. Effelsberg 100-m at 32 GHz (26".5: S<417). ADS
• Romani et al. 1990, ApJ, 349, L51. HI and IR of surroundings. ADS
• Marcelin et al. 1990, A&A, 228, 471. Optical of `jet'. ADS
• Fesen & Blair 1990, ApJ, 351, L45. Optical identification of dust in filaments. ADS
• Hester et al. 1990, ApJ, 357, 539. Optical and IR images. ADS
• Graham et al. 1990, ApJ, 352, 172. IR spectroscopy and imaging. ADS
• Hickson & van den Bergh 1990, ApJ, 365, 224. Optical polarization. ADS
• Bietenholz & Kronberg 1990, ApJ, 357, L13. VLA at 1.4 GHz (1".8). ADS
• MacAlpine & Uomoto 1991, AJ, 102, 218. Photometry. ADS
• Michel et al. 1991, ApJ, 368, 463. Optical photometry. ADS
• Bietenholz et al. 1991, ApJ, 373, L59. VLA at multiple epochs for expansion studies. ADS
• Véron-Cetty & Woltjer 1991, A&A, 251, L31. Limits on optical variations. ADS
• Hennessy et al. 1992, ApJ, 395, L13. UV imagery. ADS
• Fesen et al. 1992, ApJ, 399, 599. Optical studies of `dark bays'. ADS
• Blair et al. 1992, ApJ, 399, 611. Far UV observations. ADS
• Bietenholz & Kronberg 1992, ApJ, 393, 206. VLA at 1.5 and 5 GHz (1".8) and 1.5 and 14 GHz (6".5) for spectral studies. ADS
• Strom & Greidanus 1992, Natur, 358, 654. IRAS observations. ADS
• Fesen & Staker 1993, MNRAS, 263, 69. [OIII] imaging of `jet', and proper motion studies. ADS
• Kassim et al. 1993, AJ, 106, 2218. VLA at 74 MHz (20"). ADS
• Véron-Cetty & Woltjer 1993, A&A, 270, 370. Continuum and [OIII] photometry. ADS
• Nolan et al. 1993, ApJ, 409, 697. gamma-ray observations. ADS
• Strong et al. 1993, A&AS, 97, 133. gamma-ray observations ADS
• Murdin 1994, MNRAS, 269, 89. Deep Halpha plates and spectroscopy of halo. ADS
• Wallace et al. 1994, A&A, 286, 565. HI of surroundings. ADS
• MacAlpine et al. 1994, ApJ, 432, L131. Prominent optical knots. ADS
• Rudy et al. 1994, ApJ, 426, 646. IR spectroscopy. ADS
• Tanimori et al. 1994, ApJ, 429, L61. gamma-rays from pulsar. ADS
• Predehl & Schmitt 1995, A&A, 293, 889. ROSAT of dust scattered halo. ADS
• Lawrence et al. 1995, AJ, 109, 2635. Optical imaging spectroscopy. ADS
• Frail et al. 1995, ApJ, 454, L129. VLA at 333 MHz (20") for limits on shell. ADS
• MacAlpine et al. 1996, ApJ, 463, 650. Optical spectroscopy of N and S rich filaments. ADS
• Nasuti et al. 1996, A&A, 314, 849. Spectrophotometry of pulsar. ADS
• Bietenholz et al. 1997, ApJ, 490, 291. Comparison of VLA observations at 74 MHz, 327 MHz, 1.5 GHz and 5 GHz for spectral index studies. ADS
• Blair et al. 1997, ApJS, 109, 473. HST imaging. ADS
• van der Meulen et al. 1998, A&A, 330, 321. gamma-ray observations. ADS
• Tanimori et al. 1998, ApJ, 492, L33. gamma-ray observations. ADS
• Nugent 1998, PASP, 110, 831. Optical expansion. ADS

Last updated: 13 AUG 1998

G189.1+3.0 IC443, 3C157

• Right Ascension: 06 14 00
• Declination: +22 36
• Size (/arcmin): 45
• Type: S
• Flux density at 1 GHz (/Jy): 160
• Spectral Index: 0.36

Radio: Limb-brightened to NE, with faint extension to the E.

Optical: Brightest to the NE, with faint filaments outside the NE boundary.

X-ray: Shell, brightest to the NE.

Distance: Mean optical velocity suggests 0.7--1.5 kpc, association with S249 gives 1.5--2 kpc.

References:

• Duin & van der Laan 1975, A&A, 40, 111. WSRT at 610 MHz (1'×2'.5), 1415 MHz (24"×63"), and part at 5 GHz (12"×31"). ADS
• Lozinskaya 1981, SvAL, 7, 17. Mean optical velocity. ADS
• Fesen 1984, ApJ, 281, 658. Optical of filament to far NE. ADS
• Erickson & Mahoney 1985, ApJ, 290, 596. TPT at 4 frequencies between 31 and 74 MHz (13'×11' to 5'.4×4'.7), plus review of flux densities. ADS
• Braun & Strom 1986, A&A, 164, 193. WSRT at 327 MHz (72"×185") and 1.4 GHz (17"×43"), plus HI and IRAS. ADS
• Green 1986, MNRAS, 221, 473. CLFST at 151 MHz (1'.2×3'.1) and HMT at 1.4 GHz (2'.1×5'.4). ADS
• Mufson et al. 1986, AJ, 92, 1349. Radio, IR, optical, UV and X-ray comparison, including VLA at 1.6 GHz (3".8×3".3 and 40"). ADS
• White et al. 1987, A&A, 173, 337. Observations of shocked molecular species. ADS
• Graham et al. 1987, ApJ, 313, 847. IR spectroscopy. ADS
• Burton et al. 1988, MNRAS, 231, 617. Molecular hydrogen imaging of shocked material. ADS
• Brown et al. 1988, ApJ, 334, 852. [FeX] optical imaging. ADS
• Dickel et al. 1989, AJ, 98, 1363. VLA at 1.4 GHz (1".1×1".2) of NE. ADS
• Petre et al. 1988, ApJ, 335, 215. IPC, HRI and other X-ray observations. ADS
• Ziurys et al. 1989, ApJ, 341, 857. Observations of shocked molecular species. ADS
• Burton et al. 1990, ApJ, 355, 197. IR observations of shocked O₂. ADS
• Sauvageot et al. 1990, A&A, 232, 203. [FeX] and [FeXIV] imaging. ADS
• Moorhouse et al. 1991, MNRAS, 253, 662. Observations of shocked molecular H₂. ADS
• Wood et al. 1991, AJ, 102, 224. VLA at 5 GHz (3".6×3".8) of northeast, including polarization. ADS
• Teske 1991, ApJ, 383, 233. [FeX] and [FeXIV] imaging. ADS
• Wang & Scoville 1992, ApJ, 386, 158. Observations of shocked molecular species. ADS
• Wang et al. 1992, PASJ, 44, 303. Ginga X-ray observations. ADS
• Turner et al. 1992, ApJ, 399, 114. Observations of shocked molecular species. ADS
• Dickman et al. 1992, ApJ, 400, 203. Observations of shocked molecular species. ADS
• Inoue et al. 1993, PASJ, 45, 539. Observations of shocked molecular H₂. ADS
• van Dishoeck et al. 1993, A&A, 279, 541. Observations of shocked molecular species. ADS
• Asaoka & Aschenbach 1994, A&A, 284, 573. X-ray, including possible overlapping remnant. ADS
• White 1994, A&A, 283, L25. Observations of shocked molecular species. ADS
• Tauber et al. 1994, ApJ, 421, 570. Observations of shocked molecular species. ADS
• Richter et al. 1995, ApJ, 454, 277. Observations of shocked molecular H₂. ADS
• Esposito et al. 1996, ApJ, 461, 820. Associated gamma-ray emission. ADS
• Frail et al. 1996, AJ, 111, 1651. OH maser emission. ADS
• Keohane et al. 1997, ApJ, 484, 350. ASCA observations. ADS
• Caussen et al. 1997, ApJ, 489, 143. VLA of associated OH masers. ADS

Last updated: 17 AUG 1998

G192.8-1.1 PKS 0607+17

• Right Ascension: 06 06 30
• Declination: +17 20
• Size (/arcmin): 78
• Type: S
• Flux density at 1 GHz (/Jy): 20?
• Spectral Index: 0.6?

Notes: Has been called G193.3-1.5. Has been regarded as part of the Origem Loop, a supposed larger remnant.

Radio: In complex region.

Optical: Encompasses S261 and S254--258.

References:

• Milne & Dickel 1974, AuJPh, 27, 549. Parkes 64-m at 2.7 GHz (9': S=13±15%).
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo at 318 MHz (15': S=74±32), and S(610)=40. ADS
• Caswell 1985, AJ, 90, 1076. DRAO at 1.4 GHz (1'×3'.3: S=18±3). ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS

Last updated: 13 AUG 1998

G205.5+0.5 Monoceros Nebula

• Right Ascension: 06 36 00
• Declination: +06 30
• Size (/arcmin): 220
• Type: S
• Flux density at 1 GHz (/Jy): 160
• Spectral Index: 0.5

Radio: In complex region, parts may be HII regions.

Optical: Large ring, near Rosette nebula.

X-ray: Possibly detected.

Distance: Mean optical velocity suggests 0.8 kpc, low frequency radio absorption suggests 1.6 kpc.

References:

• Milne & Dickel 1974, AuJPh, 27, 549. Parkes 64-m at 2.7 GHz (9').
• Velusamy & Kundu 1974, A&A, 32, 375. NRAO 300-ft at 2.7 GHz (5'), part only.
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo at 111 MHz (1': S=462±180) and S(610)=245. ADS
• Davies et al. 1978, A&AS, 31, 271. Deep optical plates. ADS
• Lozinskaya 1981, SvAL, 7, 17. Mean optical velocity. ADS
• Graham et al. 1982, A&A, 109, 145. Effelsberg 100-m at 2.7 GHz (4'.4: S=97.6±12.5), plus review of flux densities. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Leahy et al. 1986, MNRAS, 220, 501. IPC observations. ADS
• Odegard 1986, ApJ, 301, 813. TPT at 20.6, 25.6 and 30.9 MHz (24', 19' and 16'). ADS
• Esposito et al. 1996, ApJ, 461, 820. Possible associated gamma-ray emission. ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Oliver et al. 1996, A&A, 315, 578. CO observations of some of surroundings. ADS
• Jaffe et al. 1997, ApJ, 484, L129. gamma-ray detection. ADS

Last updated: 13 AUG 1998

G206.9+2.3 PKS 0646+06

• Right Ascension: 06 46 00
• Declination: +06 30
• Size (/arcmin): 60×40
• Type: S?
• Flux density at 1 GHz (/Jy): 6
• Spectral Index: 0.5

Radio: Diffuse source near the Monoceros Nebula.

Optical: Filaments detected.

X-ray: Possibly detected.

References:

• Davies & Meaburn 1978, A&A, 69, 443. Optical. ADS
• Nousek et al. 1981, ApJ, 248, 152. HEAO-1 X-ray limit. ADS
• Graham et al. 1982, A&A, 109, 145. Effelsberg 100-m at 2.7 GHz (4'.4: S=4.1±0.6), plus review of flux densities. ADS
• Rosado 1982, RMxAA, 5, 127. Optical. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Leahy et al. 1986, MNRAS, 220, 501. IPC observations. ADS
• Odegard 1986, ApJ, 301, 813. TPT at 20.6, 25.6 and 30.9 MHz (24', 19' and 16'). ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS

Last updated: 13 AUG 1998

G211.7-1.1

• Right Ascension: 06 43 10
• Declination: +00 24
• Size (/arcmin): 70?
• Type: S?
• Flux density at 1 GHz (/Jy): 15?
• Spectral Index: 0.5?

Radio: Non-thermal source hinted by Bologna survey.

Optical: Coincides with S284, filamentary ring with brighter central area.

References:

• Bonsignori-Facondi & Tomasi 1979, A&A, 77, 93. Bologna at 408 MHz (4'.2×110': S=23±20%). ADS

Last updated: 29th February 1988

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

• Right Ascension: 08 20 30
• Declination: -42 50
• Size (/arcmin): 60×50
• Type: S
• Flux density at 1 GHz (/Jy): 130
• Spectral Index: 0.5

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 compact X-ray source.

Distance: Association with HI gives 2.2±0.3 kpc.

References:

• Green 1971, AuJPh, 24, 773. Molonglo at 408 MHz (3': S=198±20).
• 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. HRI 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) and 8.4 GHz (3': S=38±4), 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

Last updated: 14 AUG 1998

G261.9+5.5

• Right Ascension: 09 02 20
• Declination: -38 30
• Size (/arcmin): 40×30
• Type: S
• Flux density at 1 GHz (/Jy): 10?
• Spectral Index: 0.4?

Radio: Faint shell with little limb brightening.

References:

• Hill 1967, AuJPh, 20, 297. Parkes 64-m at 2650 MHz (7'.5: S=7) also S(1410)=8, S(81.5)=25.
• Colomb & Dubner 1980, A&A, 82, 244. Argentine 30-m dish at 1.4 GHz, for HI possibly associated with remnant. ADS
• Kesteven & Caswell 1987, A&A, 183, 118. MOST at 843 MHz (44"×71"). ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m OH observations. ADS

Last updated: 13 AUG 1998

G263.9-3.3 Vela (XYZ)

• Right Ascension: 08 32 30
• Declination: -45 35
• Size (/arcmin): 255
• Type: C
• Flux density at 1 GHz (/Jy): 1750
• Spectral Index: varies

Notes: This refers to the whole Vela XYZ complex, of which X has at times been classified as a separate (filled-centre) remnant.

Radio: Large shell, with flatter spectrum component (Vela X).

Optical: Filaments.

X-ray: Patchy shell, with extensions, central nebula and pulsar.

Point sources: Pulsar within Vela X, with one-sided `jet'.

Distance: Vela pulsar implies 0.5 kpc.

References:

• Milne 1968, AuJPh, 21, 201. Parkes 64-m at various frequencies, including 408 MHz (48': S=2300±300), 635 MHz (31': S=2360±300), 1410 MHz (14': S=1640±300) and 2650 MHz (7'.5: S=1400±250), plus discussion of the distance.
• van den Bergh et al. 1973, ApJS, 26, 19. Optical.
• Dopita et al. 1977, ApJ, 214, 179. Optical spectroscopy. ADS
• Hearn et al. 1980, ApJ, 235, L67. X-ray map. ADS
• Milne 1980, A&A, 81, 293. Maps of Vela X with Parkes 64-m at 1.66, 2.7 and 5 GHz (12', 8'.4 and 4'.4). ADS
• Weiler & Panagia 1980, A&A, 90, 269. Clarify notation of this region and review previous observations. ADS
• Kahn et al. 1985, ApJ, 299, 821. IPC observations. ADS
• Harnden et al. 1985, ApJ, 299, 828. IPC and HRI observations of Vela X and pulsar. ADS
• Bignami & Caraveo 1988, ApJ, 325, L5. Pulsar proper motion from optical observations. ADS
• Dwarakanath 1991, JApA, 12, 199. Gauribidanur `T' array at 34.5 MHz (26'×84': S=1800 for Vela X and S=3900 for Vela YZ), plus review of flux densities. ADS
• Bietenholz et al. 1991, ApJ, 376, L41. VLA at 5 GHz in vicinity of pulsar. ADS
• Raymond et al. 1991, ApJ, 383, 226. UV spectroscopy. ADS
• Willmore et al. 1992, MNRAS, 254, 139. Hard X-ray observations. ADS
• Dubner et al. 1992, A&AS, 96, 505. Argentine 30-m at 1.4 GHz (30') of surrounding HI. ADS
• Oberlack et al. 1994, ApJS, 92, 433. gamma-ray observations. ADS
• Bocchino et al. 1994, ApJ, 437, 209. ROSAT observations of NE. ADS
• Aschenbach et al. 1995, Natur, 373, 587. ROSAT of X-ray extensions. ADS
• Strom et al. 1995, Natur, 373, 590. Radio of X-ray extensions. ADS
• Markwardt & Ögelman 1995, Natur, 375, 40. X-ray jet from pulsar. ADS
• Jenkins & Wallerstein 1995, ApJ, 440, 227. Optical absorption of associated neutral carbon cloud. ADS
• Milne 1995, MNRAS, 277, 1435. Parkes 64-m at 8.4 GHz (3'), inlcuding polarization, of Vela X. ADS
• Duncan et al. 1996, MNRAS, 280, 252. Parkes 64-m at 2.4 GHz (8'.9). ADS
• Danks & Sembach 1995, AJ, 109, 2627. Optical spectroscopy of background stars. ADS
• de Jager et al. 1996, ApJ, 460, 729. gamma-ray detection. ADS
• Blair et al. 1995, AJ, 110, 312. UV spectroscopy. ADS
• Whiteoak & Green 1996, A&AS, 118, 329. MOST at 843 MHz (43"×62") of part. ADS
• Green et al. 1997, AJ, 114, 2058. Parkes 64-m and ATCA OH observations. ADS
• Frail et al. 1997, ApJ, 475, 224. VLA at 330 MHz (1'×1'.8) and comparison with ROSAT observations of Vela X. ADS
• Markwardt & Ögelman 1997, ApJ, 480, L13. ASCA observations of pulsar `jet'. ADS
• Raymond et al. 1997, ApJ, 482, 881. UV spectroscopy. ADS
• Yoshikoshi et al. 1997, ApJ, 487, L65. gamma-ray observations of pulsar. ADS
• Winkler & Long 1997, ApJ, 491, 829. ROSAT and optical observations. ADS
• Jenkins et al. 1998, ApJ, 492, L147. UV absorption to background star. ADS

Last updated: 17 AUG 1998