SIMBAD references

2008MNRAS.387L..54G - Mon. Not. R. Astron. Soc., 387, L54-L58 (2008/June-2)

The radio expansion and brightening of the very young supernova remnant G1.9+0.3.

GREEN D.A., REYNOLDS S.P., BORKOWSKI K.J., HWANG U., HARRUS I. and PETRE R.

Abstract (from CDS):

Recent radio observations of the small Galactic supernova remnant G1.9+0.3 made at 4.86 GHz with the Very Large Array are presented, and compared with earlier observations at 1.49 GHz which have a comparable resolution (10 x 4 arcsec2). These show that the radio emission from this remnant has expanded significantly, by about 15 per cent over 23 yr, with a current outer diameter of ~92 arcsec. This expansion confirms that G1.9+0.3 is the youngest Galactic remnant yet identified, only about 150 yr old at most. Recent, lower resolution, 1.43-GHz observations are also discussed, and the integrated flux densities from these and the 4.86-GHz observations are compared with earlier results. This shows that the integrated flux density of G1.9+0.3 has been increasing recently.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): ISM: individual: G1.9+0.3 - supernova remnants - radio continuum: ISM

Simbad objects: 9

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2020.09.18-11:14:51

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