SIMBAD references

2014ApJ...783L...2T - Astrophys. J., 783, L2 (2014/March-1)

SNR G349.7+0.2: a γ-ray source in the far 3 kpc arm of the Galactic Center.

TIAN W.W. and LEAHY D.A.

Abstract (from CDS):

We analyze the H I absorption profile for TeV supernova remnant (SNR) G349.7+0.2 based on updated knowledge of the inner Galaxy's structure. We significantly revise its kinematic distance from the previous ∼22 kpc to ∼11.5 kpc, indicating it is in the far 3 kpc arm of the Galactic center. We give a revised age of ∼1800 yr for G349.7+0.2 which has a low explosion energy of ∼2.5x1050 erg. This removes G349.7+0.2 from the set of brightest SNRs in radio and X-ray to γ-ray wavebands and helps us to better understand γ-ray emission originating from this remnant. However, one needs to use caution when discussing old kinematic distances of Galactic objects (e.g., SNRs, pulsars, and H II regions) in the range of -12° ≤ l ≤ 12° with distance estimates of ≥ 5.5 kpc.

Abstract Copyright:

Journal keyword(s): cosmic rays - Galaxy: center - ISM: lines and bands - ISM: supernova remnants

Simbad objects: 10

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