2007A&A...467..217T


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.23CEST12:31:50

2007A&A...467..217T - Astronomy and Astrophysics, volume 467, 217-222 (2007/5-3)

A photo-ionised canopy for the shock-excited Criss-Cross nebula.

TEMPORIN S., WEINBERGER R. and STECKLUM B.

Abstract (from CDS):

We study a new broad, well-defined arc of optical nebulosity close to the cloud-shock interacting Criss-Cross nebula, derive the basic physical properties of the nebulosity, and revise those of the nebula, and compare both objects to simulations of cloud-shock interactions from the literature. Deep optical, partly wide-field images were used to reveal the intricate morphology and overall extent of the nebulosities. Optical spectroscopy enabled us to uncover their nature. The two nebulosities are obviously physically linked, but are of different types; the Criss-Cross nebula is, as was also shown in an earlier paper, excited via a slow shock from the expanding Orion-Eridanus bubble, but the broad arc is definitely photo-ionised. The source for ionising photons appears to be hot gas in this bubble. Some results of simulations of interactions of SNRs with interstellar clouds available from the literature bear a striking resemblance to our nebulae, which appear to represent an example - unrivalled in closeness and clarity - of an early-to-medium stage in the destruction of an isolated cloud over-run by a highly evolved SNR. Thereby the Criss-Cross nebula is, when seen from the SNR, the rear disrupted part of the original, small cloud, whereas the arc is probably its still rather intact front part.

Abstract Copyright:

Journal keyword(s): ISM: supernova remnants - ISM: individual objects: Criss-Cross nebula

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 G 131-62 PM* 00 23 27.9919086124 +24 18 24.609914534   15.87   14.112   M4 17 0
2 WD 0029+571 WD* 00 31 53.2753764093 +57 22 48.839200114   18.442 18.551 18.562 18.531 DA 32 0
3 SH 2-176 PN 00 31 53.5 +57 22 33           ~ 45 1
4 PN IsWe 1 PN 03 49 05.9055783968 +50 00 14.895090065 15.71 16.374 16.523 16.576 16.644 DOZ 54 1
5 NAME Criss-Cross Nebula ISM 04 10 08.2 -04 58 38           ~ 2 0
6 BD+52 913 WD* 05 05 30.6182785658 +52 49 51.920797126 10.25 11.44 11.69 11.93 12.108 DA.8 955 0
7 NAME Ori I As* 05 38 -02.8           ~ 541 0
8 PN G197.4-06.4 PN 05 59 24.8668378135 +10 41 40.411055195   16.958 17.226 17.338 17.489 DA.3 41 1
9 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 803 0

    Equat.    Gal    SGal    Ecl

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2019.09.23-12:31:50

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