2005A&A...435..141M


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET20:22:50

2005A&A...435..141M - Astronomy and Astrophysics, volume 435, 141-149 (2005/5-3)

The faint supernova remnant G 116.5+1.1 and the detection of a new candidate remnant.

MAVROMATAKIS F., BOUMIS P., XILOURIS E., PAPAMASTORAKIS J. and ALIKAKOS J.

Abstract (from CDS):

The extended supernova remnant G 116.5+1.1 was observed in the optical emission lines of Hα+[NII], [SII] and [OIII]; deep long slit spectra were also obtained. The morphology of the remnant's observed emission is mainly diffuse and patchy in contrast to the known filamentary emission seen along the western limb. The bulk of the detected emission in the region appears unrelated to the remnant but there is one area of emission in the south-east which is characterized by a [SII]/Hα ratio of ∼0.5, implying a possible relation to G 116.5+1.1. If this is actually the case, it would imply a more extended remnant than previously realized. Emission in the [OIII] 5007Å line image is not detected, excluding moderate or fast velocity shocks running into ionized interstellar clouds. Our current estimate of the distance to G 116.5+1.1 of ∼3kpc is in agreement with earlier estimates and implies a very extended remnant (69pcx45pc). Observations further to the north-east of G 116.5+1.1 revealed a network of filamentary structures prominent in Hα+[NII] and [SII] but failed to detect [OIII] line emission. Long slit spectra in a number of positions provide strong evidence that this newly detected emission arises from shock heated gas. Typical Hα fluxes lie in the range of 9 to 17x10–17erg/s/cm2/arcsec2, while low electron densities are implied by the intensities of the sulfur lines. Weak emission from the medium ionization line at 5007Å is detected in only one spectrum. Cool dust emission at 60 and 100 microns may be correlated with the optical emission in a limited number of positions. Surpisingly, radio emission is not detected in published surveys suggesting that the new candidate remnant may belong to the class of ``radio quiet'' supernova remnants.

Abstract Copyright:

Journal keyword(s): ISM: general - ISM: supernova remnants - ISM: individual objects: G 116.5+1.1

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SNR G117.4+01.5 SNR 00 01 +63.8           ~ 1 0
2 LBN 117.62+02.29 HII 00 01 29 +64 39.0           ~ 36 0
3 * 29 Psc V* 00 01 49.4471402460 -03 01 39.021673975 4.47 4.98 5.10     B7III-IV 209 0
4 * ksi02 Cet * 02 28 09.5570589539 +08 27 36.216809306 4.14 4.25 4.30 4.29 4.34 B9III 310 0
5 * 108 Vir * 14 45 30.2060174766 +00 43 02.178514704   5.656 5.665     B9.5V 147 0
6 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 846 2
7 * 58 Aql * 19 54 44.7954348711 +00 16 25.053387202   5.703 5.631     B9IV 199 0
8 * eps Aqr * 20 47 40.5526029 -09 29 44.787712 3.79 3.77 3.77 3.70 3.70 B9.5V 259 0
9 * 42 Peg PM* 22 41 27.7207176 +10 49 52.907917 3.10 3.33 3.41 3.43 3.50 B8V 285 0
10 BD+62 2316 Ro* 23 52 56.5046537491 +62 50 02.014625083   10.07 9.51     ~ 6 0
11 SNR G116.5+01.1 SNR 23 53 42.000 +63 15 00.00           ~ 63 0
12 CTB 1 SNR 23 59 13 +62 26.2           ~ 142 0

    Equat.    Gal    SGal    Ecl

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2021.03.04-20:22:50

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