Note: this is an archived version which has been superseded.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 39 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, with faint wind nebula.

Distance: Optical absorption towards stars indicates >0.36 and <0.88 kpc.

References:

• van den Bergh et al. 1973, ApJS, 26, 19. Optical observations. ADS
• 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 Jy) and 1.6 GHz (10': S=60.2±6 Jy). ADS
• Angerhofer & Kundu 1981, AJ, 86, 1003. Arecibo at 430 MHz (9': S=97±20 Jy). 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, 185. 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
• Reich 2002, in NSPS, p1. Effelsberg 100-m at 2.7 GHz. ADS
• Reich et al. 2003, A&A, 408, 961. Effelsberg 100-m at 863 MHz (14'.5: S=77±10 Jy). ADS
• Romani & Ng 2003, ApJ, 585, L41. Chandra of pulsar. ADS
• Kramer et al. 2003, ApJ, 593, L31. Pulsar observations. ADS
• Sallmen & Welsh 2004, A&A, 426, 555. Optical absorption towards background stars. ADS
• Drew et al. 2005, MNRAS, 362, 753. Hα imaging. ADS
• Ng et al. 2007, ApJ, 654, 487. Pulsar and wind nebula observations. ADS
• Xiao et al. 2008, A&A, 482, 783. Urumqi 25-m at 4.8 GHz (9'.5: S=15.4±3.0 Jy) and Effelsberg 100-m at 2.6 GHz (4'.4: S=34.6±4.0 Jy). ADS
• Jeong et al. 2012, Ap&SS, 342, 389. CO observations of region. ADS
• Katsuta et al. 2012, ApJ, 752, 135. Fermi observations. ADS

Last updated: 23 May 2014

G182.4+4.3    

• Right Ascension: 06 08 10
• Declination: +29 00
• Size (/arcmin): 50
• Type: S
• Flux density at 1 GHz (/Jy): 0.5
• Spectral Index: 0.4

Radio: Incomplete shell.

Optical: Brighter in S and NW.

X-ray: Diffuse emission.

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 Jy, 4'.4: S=0.25±0.04 Jy, 2'.5: S=0.20±0.02 Jy and 1'.2: S=0.15±0.03 Jy), plus X-ray upper limit. ADS
• Reich 2002, in NSPS, p1. Effelsberg 100-m at 2.7 GHz and 4.9 GHz (3'). ADS
• Sun et al. 2011, A&A, 536, A83. Urumqi 25-m at 5 GHz (9'.5: S=0.26±0.5 Jy) including polarisation and review of flux densities. ADS
• Sezer et al. 2012, MNRAS, 427, 1168. Optical and XMM observations. ADS
• Jeong et al. 2012, Ap&SS, 342, 389. CO observations of region. ADS

Last updated: 28 Apr 2014

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

• Right Ascension: 05 34 31
• Declination: +22 01
• 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 polarised filaments, diffuse synchrotron emission, with `jet' faintly visible.

X-ray: Central `torus' around the pulsar.

Point sources: Pulsar powering the remnant.

Distance: Proper motions and radial velocities give 2 kpc.

References:

• Velusamy 1984, Nature, 308, 251. VLA at 1.4 GHz, radio detection of `jet'. ADS
• Velusamy 1985, MNRAS, 212, 359. VLA at 1.4 GHz (15''). ADS
• Aller & Reynolds 1985, ApJ, 293, L73. Flux density decrease. ADS
• Fesen & Gull 1986, ApJ, 306, 259. Deep [OIII] imagery of `jet'. ADS
• Marcelin et al. 1990, A&A, 228, 471. Optical of `jet'. ADS
• Hester et al. 1990, ApJ, 357, 539. Optical and IR images. ADS
• Hickson & van den Bergh 1990, ApJ, 365, 224. Optical polarisation. ADS
• Bietenholz & Kronberg 1990, ApJ, 357, L13. VLA at 1.4 GHz (1".8). 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
• 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
• Wallace et al. 1994, A&A, 286, 565. HI of surroundings. ADS
• Frail et al. 1995, ApJ, 454, L129. VLA at 333 MHz (20'') for limits on shell. 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
• Fesen et al. 1997, AJ, 113, 354. Limits on Hα halo. ADS
• van der Meulen et al. 1998, A&A, 330, 321. γ-ray observations. ADS
• Tanimori et al. 1998, ApJ, 492, L33. γ-ray observations. ADS
• Nugent 1998, PASP, 110, 831. Optical expansion. ADS
• Sankrit et al. 1998, ApJ, 504, 344. HST images. ADS
• Wallace et al. 1999, ApJS, 124, 181. DRAO at 1.4 GHz (1'.0×2'.8), plus Effelsberg 100-m, for HI studies. ADS
• Greiveldinger & Aschenbach 1999, ApJ, 510, 305. X-ray variability of torus. ADS
• Weisskopf et al. 2000, ApJ, 536, L81. Chandra observations. ADS
• Sollerman et al. 2000, ApJ, 537, 861. HST observations. ADS
• Aharonian et al. 2000, ApJ, 539, 317. γ-ray observations. ADS
• Oser et al. 2001, ApJ, 547, 949. γ-ray observations. ADS
• Willingale et al. 2001, A&A, 365, L212. XMM observations. ADS
• Douvion et al. 2001, A&A, 373, 281. ISO observations. ADS
• Bietenholz et al. 2001, ApJ, 560, 254. Multi-epoch VLA observations, showing variations near the pulsar. ADS
• Bandiera et al. 2002, A&A, 386, 1044. 1.3 mm observations. ADS
• Hester et al. 2002, ApJ, 577, L49. HST and Chandra multi-epoch observations. ADS
• Atkins et al. 2003, ApJ, 595, 803. γ-ray observations. ADS
• Green et al. 2004, MNRAS, 355, 1315. Sub-mm and ISO observations. ADS
• Mori et al. 2004, ApJ, 609, 186. Chandra observations. ADS
• Čadež et al. 2004, ApJ, 609, 797. Optical observations. ADS
• Aharonian et al. 2004, ApJ, 614, 897. γ-ray observations. ADS
• Bietenholz et al. 2004, ApJ, 615, 794. VLA at 5 GHz (1".4) and HST multi-epoch observation for proper motion studies. ADS
• Melatos et al. 2005, ApJ, 633, 931. Multi-epoch near-IR observations central region. ADS
• Seward et al. 2006, ApJ, 636, 873. Chandra observations of scattering halo. ADS
• Temim et al. 2006, AJ, 132, 1610. Spitzer observations. ADS
   also see: Temim et al. 2009, AJ, 137, 5155. Erratum. ADS
• Aharonian et al. 2006, A&A, 457, 899. γ-ray observations ADS
• Seward et al. 2006, ApJ, 652, 1277. Chandra observations. ADS
• MacAlpine et al. 2007, AJ, 133, 81. Optical spectroscopy. ADS
• Kaplan et al. 2008, ApJ, 677, 1201. HST proper motion of pulsar. ADS
• Rudie et al. 2008, MNRAS, 384, 1200. [OIII] observations of `jet', for proper motion. ADS
• Hurley-Walker et al. 2009, MNRAS, 396, 365. Radio observations at 14 to 18 GHz. ADS
• Tziamtzis et al. 2009, A&A, 497, 167. Limits on Hα halo. ADS
• Carlebois et al. 2010, AJ, 139, 2083. Optical imaging spectroscopy. ADS
• Aumount et al. 2010, A&A, 514, A70. IRAM 30-m at 150 GHz (16".7: S=244±24 Jy) and GBT at 90 GHz (9".3). ADS
• Loh et al. 2012, MNRAS, 421, 789. IR observations of H₂. ADS
• Lundqvist & Tziamtzis 2012, MNRAS, 423, 1571. Optical limits on outer shell. ADS
• Temim et al. 2012, ApJ, 753, 72. Spitzer observations of dust. ADS
• Gomez et al. 2012, ApJ, 760, 96. Herschel IR and sub-mm observations of dust. ADS
• Loll et al. 2013, ApJ, 765, 152. HST optical line and continuum observations. ADS
• Barlow et al. 2013, Science, 342, 1343. Herschel far-IR spectroscopy. ADS

Last updated: 23 May 2014

G189.1+3.0     IC443, 3C157

• Right Ascension: 06 17 00
• Declination: +22 34
• Size (/arcmin): 45
• Type: C
• 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, plus compact source with nebula.

Point sources: X-ray source and nebula in S.

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

References:

• 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. 151 MHz observations (1'.2×3'.1) and Half-Mile Telescope 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
• Petre et al. 1988, ApJ, 335, 215. Einstein and other X-ray observations. ADS
• Dickel et al. 1989, AJ, 98, 1363. VLA at 1.4 GHz (1".1×1".2) of NE. ADS
• Burton et al. 1990, ApJ, 355, 197. IR observations of shocked O₂. ADS
• Wood et al. 1991, AJ, 102, 224. VLA at 5 GHz (3".6×3".8) of northeast, including polarisation. ADS
• Wang & Scoville 1992, ApJ, 386, 158. Observations of shocked molecular species. 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
• 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
• Tauber et al. 1994, ApJ, 421, 570. Observations of shocked molecular species. ADS
• Frail et al. 1996, AJ, 111, 1651. OH maser emission. ADS
• Claussen et al. 1997, ApJ, 489, 143. VLA of associated OH masers. ADS
• Seta et al. 1998, ApJ, 505, 286. CO observations of surroundings. ADS
• Claussen et al. 1999, ApJ, 522, 349. High resolution observations of OH masers. ADS
• Oliva et al. 1999, A&A, 341, L75. ISO observations. ADS
• Cesarsky et al. 1999, A&A, 348, 945. ISO observations of shocked molecular H₂. ADS
• Bocchino & Bykov 2000, A&A, 362, L29. BeppoSAX observations. ADS
• Rho et al. 2001, ApJ, 547, 885. ISO and 2Mass IR spectroscopy and imaging. ADS
• Olbert et al. 2001, ApJ, 554, L205. Chandra of compact X-ray source and surrounding nebula. ADS
• Bocchino & Bykov 2001, A&A, 376, 248. XMM of compact X-ray source and surrounding nebula. ADS
• Bocchino & Bykov 2003, A&A, 400, 203. XMM observations of compact sources. ADS
• Reich et al. 2003, A&A, 408, 961. Effelsberg 100-m at 863 MHz (14'.5: S=160±5 Jy). ADS
• Welsh & Sallmen 2003, A&A, 408, 545. Optical absorption studies. ADS
• Leahy 2004, AJ, 127, 2277. DRAO at 408 MHz (3'.3×8'.6) and 1.4 GHz (1'.0×2'.6), for spectral index studies. ADS
   also see: Leahy 2004, AJ, 128, 1478. Addendum. ADS
• Snell et al. 2005, ApJ, 620, 758. Molecular line and IR observations of shocked material. ADS
• Bykov et al. 2005, ApJ, 624, L41. Chandra observations of compact source. ADS
• Kawasaki et al. 2005, ApJ, 631, 935. ASCA observations. ADS
• Gaensler et al. 2006, ApJ, 648, 1037. Chandra of X-ray source and nebula. ADS
• Hewitt et al. 2006, ApJ, 652, 1288. GBT at 1.6 and 1.7 GHz (7'.2) for OH, and VLA at 330 MHz (74''×64''). ADS
• Neufeld et al. 2007, ApJ, 664, 890. Spitzer observations. ADS
• Rosado et al. 2007, AJ, 133, 89. Observations of shocked H₂. ADS
• Albert et al. 2007, ApJ, 664, L87. γ-ray observations. ADS
• Casandjian & Grenier 2008, A&A, 489, 849. γ-ray observations. ADS
• Hewitt et al. 2008, ApJ, 683, 189. GBT at 1.6 and 1.7 GHz for OH masers. ADS
• Lee et al. 2008, AJ, 135, 796. VLA at 1.4 GHz (39''×42'') including HI. ADS
• Troja et al. 2008, A&A, 485, 777. XMM observations. ADS
• Bocchino et al. 2008, AdSpR, 41, 396. Integral observations. ADS
• Bykov et al. 2008, ApJ, 676, 1050. XMM, Chandra and Spitzer observations. ADS
• Bocchino et al. 2009, A&A, 498, 139. XMM observations. ADS
• Hirschauer et al. 2009, ApJ, 696, 1533. Optical absorption spectroscopy. ADS
• Acciari et al. 2009, ApJ, 698, L133. γ-ray observations. ADS
• Yamaguchi et al. 2009, ApJ, 705, L6. Suzaku observations. ADS
• Koo et al. 2010, AJ, 140, 262. HI Zeeman splitting observations. ADS
• Tavani et al. 2010, ApJ, 710, L151. γ-ray observations. ADS
• Yuan & Neufeld 2011, ApJ, 726, 76. Spitzer observations. ADS
• Xu et al. 2011, ApJ, 727, 81. CO observations of region. ADS
• Shinn et al. 2011, ApJ, 732, 124. AKARI observations of H₂. ADS
• Gao et al. 2011, A&A, 529, A159. Urumqi 25-m at 5 GHz (9'.5: S=85±9 Jy), including polarisation and review of flux densities. ADS
• Lee et al. 2012, ApJ, 749, 34. CO and HCO⁺ of region. ADS
• Taylor et al. 2012, ApJ, 750, L15. Optical absorption of background stars. ADS
• Yuan et al. 2012, ApJ, 753, 126. Spitzer spectroscopy. ADS
• Shinn et al. 2012, ApJ, 759, 34. AKARI observations of H₂. ADS
• Satterfield et al. 2012, AJ, 144, 27. Optical spectroscopy. ADS
• Ackermann et al. 2013, Science, 339, 807. Fermi observations. ADS
• Hezareth et al. 2013, A&A, 558, A45. CO observations, including polarisation, of region. ADS
• Kokasho et al. 2013, ApJ, 768, L8. IR observations of [FeII], plus AKARI and Spitzer observations. ADS

Last updated: 30 May 2014

G190.9−2.2    

• Right Ascension: 06 01 55
• Declination: +18 24
• Size (/arcmin): 70×60
• Type: S
• Flux density at 1 GHz (/Jy): 1.3?
• Spectral Index: 0.7?

Radio: Incomplete shell.

References:

• Foster et al. 2013, A&A, 549, A107. Various radio survey observations. ADS

Last updated: 20 May 2014

G192.8−1.1     PKS 0607+17

• Right Ascension: 06 09 20
• 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% Jy). ADS
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo at 318 MHz (15': S=74±32 Jy), and S_610 MHz=40 Jy. ADS
• Caswell 1985, AJ, 90, 1076. DRAO at 1.4 GHz (1'×3'.3: S=18±3 Jy). ADS
• Biggs & Lyne 1996, MNRAS, 282, 691. Pulsar search. ADS
• Welsh et al. 2001, A&A, 372, 516. Far-UV spectroscopy. ADS

Last updated: 31 Dec 2001

G205.5+0.5     Monoceros Nebula

• Right Ascension: 06 39 00
• Declination: +06 30
• Size (/arcmin): 220
• Type: S
• Flux density at 1 GHz (/Jy): 140
• Spectral Index: 0.4

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'). ADS
• Velusamy & Kundu 1974, A&A, 32, 375. NRAO 300-ft at 2.7 GHz (5'), part only. ADS
• Dickel & DeNoyer 1975, AJ, 80, 437. Arecibo at 111 MHz (1': S=462±180 Jy) and S_610 MHz=245 Jy. 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 Jy), plus review of flux densities. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Leahy et al. 1986, MNRAS, 220, 501. Einstein 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 γ-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. γ-ray detection. ADS
• Aharonian et al. 2004, A&A, 417, 973. γ-ray limits. ADS
• Kaplan et al. 2006, ApJS, 163, 344. X-ray upper limit on compact sources. ADS
• Casandjian & Grenier 2008, A&A, 489, 849. γ-ray observations. ADS
• Xiao & Zhu 2012, A&A, 545, A86. Review of radio, HI and Hα observations. ADS

Last updated: 30 May 2014

G206.9+2.3     PKS 0646+06

• Right Ascension: 06 48 40
• Declination: +06 26
• 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 observations. 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 Jy), plus review of flux densities. ADS
• Rosado 1982, RMxAA, 5, 127. Optical observations. ADS
• Fesen et al. 1985, ApJ, 292, 29. Optical spectra. ADS
• Leahy 1986, A&A, 156, 191. Einstein 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
• Gao et al. 2011, A&A, 529, A159. Urumqi 25-m at 5 GHz (9'.5: S=2.9±0.3 Jy), including polarisation and review of flux densities. ADS

Last updated: 30 May 2014

G213.0−0.6    

• Right Ascension: 06 50 50
• Declination: −00 30
• Size (/arcmin): 160×140?
• Type: S
• Flux density at 1 GHz (/Jy): 21
• Spectral Index: 0.4

Notes: Has also been called G213.3−0.4.

Radio: Large, faint shell.

Optical: Filamentary shell.

Point sources: Central X-ray source

References:

• Reich et al. 2003, A&A, 408, 961. Effelsberg 100-m at 863 MHz (14'.5: S=22.0±3.7 Jy). ADS
• Stupar & Parker 2012, MNRAS, 419, 1413. Hα, radio survey and other observations. ADS

Last updated: 14 May 2014

G260.4−3.4     Puppis A, MSH 08−44

• Right Ascension: 08 22 10
• Declination: −43 00
• Size (/arcmin): 60×50
• Type: S
• Flux density at 1 GHz (/Jy): 130
• Spectral Index: 0.5

Notes: This remnant overlaps the Vela SNR (G263.9−3.3).

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 possible pulsating X-ray source.

Distance: Association with HI gives 2.2 kpc.

References:

• Green 1971, AuJPh, 24, 773. Molonglo at 408 MHz (3': S=198±20 Jy). ADS
• Goudis & Meaburn 1978, A&A, 62, 283. Hα+[NII] optical image. ADS
• Petre et al. 1982, ApJ, 258, 22. Einstein 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 Jy) and 8.4 GHz (3': S=38±4 Jy), plus polarisation. 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
• Bock et al. 1998, AJ, 116, 1886. MOST at 843 MHz (43''×60''). ADS
• Pavlov et al. 1999, ApJ, 511, L45. Possible pulsation detection from central X-ray source. ADS
• Zavlin et al. 1999, ApJ, 525, 959. X-ray observations of central source. ADS
• Bocchino et al. 2000, A&A, 359, 316. Optical studies of selected filaments in N. ADS
• Woermann et al. 2000, MNRAS, 317, 421. OH observations. ADS
• Gaensler et al. 2000, ApJ, 537, L35. Radio limit for nebula around possible pulsar. ADS
• Reynoso et al. 2003, MNRAS, 345, 671. ATCA at 1.4 GHz (90'') for HI near central X-ray source. ADS
• Hwang et al. 2005, ApJ, 635, 355. Chandra observations of E edge. ADS
• Hui & Becker 2006, A&A, 454, 543. XMM and Chandra observations. ADS
• Hui & Becker 2006, A&A, 457, L33. Chandra proper motion study of central source. ADS
• Castelletti et al. 2006, A&A, 459, 535. VLA at 1.4 GHz (16''×34'': S=114±8 Jy) and 327 MHz (45''×90'': S=263±20 Jy). ADS
• Winkler & Petre 2007, ApJ, 670, 635. Chandra proper motion study of central source. ADS
• Paron et al. 2008, A&A, 480, 439. CO observations of E. ADS
• Hwang et al. 2008, ApJ, 676, 378. Suzaku observations. ADS
• Katsuda et al. 2008, ApJ, 678, 297. XMM observations. ADS
• Mignani et al. 2009, A&A, 500, 1211. Optical limits for compact X-ray source. ADS
• Katsuda et al. 2010, ApJ, 714, 1725. Chandra and XMM observations. ADS
• Arendt et al. 2010, ApJ, 725, 585. Spitzer observations. ADS
• Becker et al. 2012, ApJ, 755, 141. Chandra proper motion study of central X-ray source. ADS
• Katsuda et al. 2012, ApJ, 756, 49. XMM spectroscopy. ADS
• Hewitt et al. 2012, ApJ, 759, 89. Fermi and WMAP 23 to 90 GHz observations. ADS
• Dubner et al. 2013, A&A, 555, A9. XMM and Chandra observations. ADS
• Katsuda et al. 2013, ApJ, 768, 182. XMM observations. ADS

Last updated: 30 May 2014

G261.9+5.5    

• Right Ascension: 09 04 20
• Declination: −38 42
• 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 Jy) also S_1410 MHz=8 Jy, S_81.5 MHz=25 Jy. ADS
• 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 34 00
• Declination: −45 50
• 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. This remnant is overlapped by G260.4−3.4 and G266.2−1.2.

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

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 parallax gives 0.3 kpc, optical spectra and HI studies suggest 0.25 kpc.

References:

• Milne 1968, AuJPh, 21, 201. Parkes 64-m at various frequencies, including 408 MHz (48': S=2300±300 Jy), 635 MHz (31': S=2360±300 Jy), 1410 MHz (14': S=1640±300 Jy) and 2650 MHz (7'.5: S=1400±250 Jy), plus discussion of the distance. 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. Clarificaton of notation of this region and review previous observations. 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 Jy for Vela X and S=3900 Jy 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
• 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
• Strom et al. 1995, Nature, 373, 590. Radio of X-ray extensions. ADS
• Markwardt & Ögelman 1995, Nature, 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'), including polarisation, of Vela X. ADS
• Danks & Sembach 1995, AJ, 109, 2627. Optical spectroscopy of background stars. ADS
• Blair et al. 1995, AJ, 110, 312. UV spectroscopy. ADS
• Duncan et al. 1996, MNRAS, 280, 252. Parkes 64-m at 2.4 GHz (8'.9). 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. γ-ray observations of pulsar. ADS
• Jenkins et al. 1998, ApJ, 492, L147. UV absorption to background star. ADS
• Dubner et al. 1998, AJ, 116, 813. Parkes 64-m at 1.4 GHz (15') for HI studies. ADS
• Bock et al. 1998, AJ, 116, 1886. MOST at 843 MHz (43''×60''). ADS
• Cha et al. 1999, ApJ, 515, L25. Optical spectra, for distance. ADS
• Lu & Aschenbach 2000, A&A, 362, 1083. ROSAT spatially resolved spectroscopy. ADS
• Chadwick et al. 2000, ApJ, 537, 414. Limit on high energy γ-rays from pulsar. ADS
• Sankrit et al. 2001, ApJ, 549, 416. Far-UV observations of selected region. ADS
• Pavlov et al. 2001, ApJ, 554, L189. Chandra two epoch observations of pulsar nebula. ADS
• Helfand et al. 2001, ApJ, 556, 380. Chandra observations of pulsar and its nebula. ADS
• Miyata et al. 2001, ApJ, 559, L45. Chandra of X-ray extension. ADS
• Alvarez et al. 2001, A&A, 372, 636. Radio spectral index studies. ADS
   also see: Alvarez et al. 2001, A&A, 379, 323. Erratum. ADS
• Caraveo et al. 2001, ApJ, 561, 930. HST parallax observations of pulsar. ADS
• Moriguchi et al. 2001, PASJ, 53, 1025. CO observations. ADS
• Dodson et al. 2003, MNRAS, 343, 116. ATCA at 1.4, 2.4, 5.2 and 8.5 GHz (6".2×8".1, 26''×36'', 12".1×10".5 and 11".2×10".6) of pulsar nebula. ADS
• Sankrit et al. 2003, ApJ, 589, 242. Optical nebulosity to NE of G266.2−1.2. ADS
• Nichols & Slavin 2004, ApJ, 610, 285. UV absorption toward background sources. ADS
• Hales et al. 2004, ApJ, 613, 977. Vela X at 31 GHz (4'.1). ADS
• Mongano et al. 2005, A&A, 436, 917. XMM and other X-ray observations of pulsar nebula. ADS
• Miceli et al. 2005, A&A, 442, 513. XMM observations of N rim. ADS
• Katsuda & Tsunemi 2005, PASJ, 57, 621. XMM observations of E. ADS
• Aharonian et al. 2006, A&A, 448, L43. γ-ray observations. ADS
• McConnell et al. 2006, AJ, 131, 648. ATCA at 4.9 GHz (12') including polarisation. ADS
• Katsuda & Tsunemi 2006, ApJ, 642, 917. XMM observations of NE. ADS
• Nishikida et al. 2006, ApJ, 644, L171. Far UV observations. ADS
• Miceli et al. 2008, ApJ, 676, 1064. XMM observations. ADS
• LaMassa et al. 2008, ApJ, 689, L121. XMM observations of Vela X. ADS
• Grondin et al. 2013, ApJ, 774, 110. Fermi observations of Vela X. ADS

Last updated: 23 May 2014

G266.2−1.2     RX J0852.0−4622

• Right Ascension: 08 52 00
• Declination: −46 20
• Size (/arcmin): 120
• Type: S
• Flux density at 1 GHz (/Jy): 50?
• Spectral Index: 0.3?

Notes: This remnant overlaps the Vela SNR (G263.9−3.3).

Radio: Incomplete shell, confused by the Vela SNR.

Optical: Nebulosity offset to NE.

X-ray: Non-thermal shell, confused by the Vela SNR, with central source, and possible associated pulsar.

Point sources: Central X-ray source, with optical nebula, and possible associated pulsar.

Distance: X-ray data suggest an upper limit of 1 kpc.

References:

• Aschenbach 1998, Nature, 396, 141. ROSAT identification. ADS
• Iyudin et al. 1998, Nature, 396, 142. γ-ray observations. ADS
• Combi et al. 1999, ApJ, 519, L177. Radio observations. ADS
• Duncan & Green 2000, A&A, 364, 732. Parkes 64-m at 1.4 GHz (14'.0), and comparison with other observations. ADS
• Redman et al. 2000, ApJ, 543, L153. Optical of nearly nebulosity. ADS
• Tsunemi et al. 2000, PASJ, 52, 887. ASCA spectral observations. ADS
• Slane et al. 2001, ApJ, 548, 814. ASCA observations. ADS
• Mereghetti et al. 2001, ApJ, 548, L213. BeppoSAX observations of central sources. ADS
• Pavlov et al. 2001, ApJ, 559, L131. Chandra of central X-ray source. ADS
• Moriguchi et al. 2001, PASJ, 53, 1025. CO observations. ADS
• Pellizzoni et al. 2002, A&A, 393, L65. Optical observations of central source. ADS
• Redman et al. 2002, MNRAS, 336, 1093. Optical nebulosity to NE. ADS
• Kargaltsev et al. 2002, ApJ, 580, 1060. Chandra observations of central source. ADS
• Sankrit et al. 2003, ApJ, 589, 242. Optical nebulosity to NE. ADS
• Redman & Meaburn 2005, MNRAS, 356, 969. Possible pulsar association. ADS
• Iyudin et al. 2005, A&A, 429, 225. XMM observations. ADS
• Aharonian et al. 2005, A&A, 437, L7. γ-ray observations. ADS
• Katagiri et al. 2005, ApJ, 619, L163. γ-ray observations. ADS
• Bamba et al. 2005, ApJ, 632, 294. Chandra of NW rim. ADS
• Reynoso et al. 2006, A&A, 449, 243. ATCA at 1.38 GHz (32''×37''). ADS
• Enomoto et al. 2006, ApJ, 652, 1268. γ-ray observations. ADS
• Mignani et al. 2007, A&A, 473, 883. Deep optical observations of compact X-ray source. ADS
• Aharonian et al. 2007, ApJ, 661, 236. γ-ray observations. ADS
• Katsuda et al. 2008, ApJ, 678, L35. XMM proper motion study. ADS

Last updated: 30 May 2014