2nd quadrant Galactic SNRs


G93.3+6.9

DA 530, 4C(T)55.38.1

Notes: Has been called G93.2+6.7.

Radio: Shell, with two bright limbs, highly polarised.
X-ray: Compact central source.
Distance: HI observations suggest 2.2 kpc.

References:

Last updated: 28 Apr 2014


G93.7−0.2

CTB 104A, DA 551

Notes: Has been called G93.6−0.2 and G93.7−0.3.

Radio: Distorted, faint shell.
Distance: Association with HI features suggests 1.5 kpc.

References:

Last updated: 28 Apr 2014


G94.0+1.0

3C434.1

Radio: Incomplete shell, containing HI shell.
Distance: Association with stellar wind bubble implies 5.2 kpc.

References:

Last updated: 24 May 2014


G96.0+2.0

Radio: Faint, arc in S, poorly defined in N.
Distance: Association for HI indicates 4 kpc.

References:

Last updated: 24 May 2014


G106.3+2.7

Notes: Incorporates the pulsar wind nebula G106.6+2.9 (the `Boomerang').

Radio: Faint extended source, which brighter `head' to NE.
X-ray: Pulsar and wind nebula.
Point sources: Pulsar.

References:

Last updated: 28 Apr 2017


G108.2−0.6

Radio: Faint shell.
Distance: Possible associated HI structures suggest 3.2 kpc.

References:

Last updated: 16 Mar 2009


G109.1−1.0

CTB 109

Radio: Semicircular shell, with the Molecular cloud S152 is to the immediate W.
Optical: Faint optical filaments.
X-ray: Semicircular shell, with pulsar at W edge.
Point sources: Long period X-ray pulsar (magnetar).
Distance: Various observations imply 3.2 kpc.

References:

Last updated: 13 May 2017


G111.7−2.1

Cassiopeia A, 3C461

Notes: Presumably the remnant of a late 17th century SN.

Radio: Bright shell with compact knots and extended plateau of emission; shows secular decline.
Optical: Fast knots and quasi-stationary flocculli, with many filaments at large radii, and NE `jet'.
X-ray: Incomplete shell, with hard spectral component.
Point sources: Central compact X-ray source.
Distance: Optical expansion gives 3.3 kpc.

References:

Last updated: 16 Jun 2017


G113.0+0.2

Radio: Elongated, extent not well defined.
Point sources: Contains old pulsar.
Distance: Association for HI indicates 3.1 kpc.

References:

Last updated: 28 Apr 2017


G114.3+0.3

Radio: Shell, with HII region S165 within the boundary of the remnant.
Optical: Faint emission in centre and to S.
Point sources: Pulsar near centre of remnant.
Distance: Association with HI and other features implies 0.7 kpc.

References:

Last updated: 28 Apr 2014


G116.5+1.1

Radio: Distinct shell, with high polarisation.
Optical: Detected.
Distance: Association with HI features implies 1.6 kpc.

References:

Last updated: 28 Apr 2014


G116.9+0.2

CTB 1

Notes: Has been called G117.3+0.1 and G116.9+0.1.

Radio: Incomplete shell.
Optical: Filaments on sky survey.
X-ray: Centrally brightened, with NE `breakout'.
Point sources: Pulsar to NE.
Distance: Association with HI features implies 1.6 kpc.

References:

Last updated: 24 May 2014


G119.5+10.2

CTA 1

Notes: Has been called G119.5+10.3.

Radio: Incomplete shell, with `breakout' to NW.
Optical: Faint diffuse nebulosities.
X-ray: Centrally brightened.
Point sources: Central pulsar.
Distance: Associated HI shell indicates 1.4 kpc.

References:

Last updated: 13 May 2017


G120.1+1.4

Tycho, 3C10, SN1572

Notes: This is the remnant of the Tycho's SN of AD1572.

Radio: Shell, brightest to the NE.
Optical: Faint filaments/knots to the NNW, NE and E.
X-ray: Shell, brighter to the NE.
Point sources: Faint radio source near centre of the remnant, thought to be extragalactic.
Distance: HI observations suggest 2.3–3 kpc, optical proper motion and shock velocity gives 2.4 kpc.

References:

Last updated: 16 Jun 2017


G126.2+1.6

Radio: Poorly defined shell.
Optical: Filaments, mostly in W.

References:

Last updated: 20 Feb 2009


G127.1+0.5

R5

Notes: Has been called G127.3+0.7.

Radio: Distinct shell, with bright central source.
Optical: Detected.
Point sources: Flat radio spectrum (extragalactic) source at centre of remnant.
Distance: 1.2–1.3 kpc if associated with NGC 559.

References:

Last updated: 5 May 2017


G130.7+3.1

3C58, SN1181

Notes: This is the remnant of the SN of AD1181.

Radio: Filled-centre, highly polarised, with high frequency turnover.
Optical: Faint filaments.
X-ray: Centrally brightened, with faint jet.
Point sources: Central pulsar.
Distance: HI absorption indicates 2 kpc.

References:

Last updated: 13 May 2017


G132.7+1.3

HB3

Notes: Has been called G132.4+2.2.

Radio: Faint shell, adjacent to W3/4/5 complex.
Optical: Complete, filamentary shell, shock excited spectra.
X-ray: Partial shell.
Point sources: Pulsar nearby.
Distance: Interaction with surroundings gives 2 kpc.

References:

Last updated: 13 May 2017


G152.4−2.1

Radio: Bilateral shell.

References:

Last updated: 30 Apr 2014


G156.2+5.7

Radio: Faint shell, brighter in E and W.
Optical: Filamentary ring and smaller patchy ring.
X-ray: Faint shell.
Distance: Optical/X-ray observations imply >1.7 kpc.

References:

Last updated: 13 May 2017


G159.6+7.3

Optical: Large, faint shell.
X-ray: Possible emission.

References:

Last updated: 30 Apr 2014


G160.9+2.6

HB9

Notes: Has been called G160.5+2.8 and G160.4+2.8.

Radio: Large, filamentary shell.
Optical: Incomplete shell.
X-ray: Centrally brightened.
Point sources: Pulsar within boundary of the remnant, plus several nearby compact radio sources.
Distance: Various observations suggests less than 4 kpc.

References:

Last updated: 5 May 2017


G166.0+4.3

VRO 42.05.01

Radio: Two arcs of strikingly different radii.
Optical: Nearly complete ring.
X-ray: Predominantly in SW.
Distance: HI indicates 4.5 kpc.

References:

Last updated: 28 Apr 2017


G178.2−4.2

Radio: Faint shell, brighter in NE.

References:

Last updated: 28 Apr 2017


G179.0+2.6

Radio: Thick shell, with background extragalactic sources near centre.

References:

Last updated: 13 May 2017


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