trailX-ray absorption compared with CO and HI gas columns places HESS J1731-347 at least 3.2 kiloparsecs away
The optical star IRAS 17287-3443 is physically associated with the supernova remnant HESS J1731-347
The supernova remnant HESS J1731-347 lies at a distance of about 2.5 kiloparsecs
Absorption-gas column comparison· for
The X-ray absorption column density toward HESS J1731-347 exceeds the total foreground gas column in front of the Scutum-Crux arm
X-ray spectral fits toward HESS J1731-347 yield absorption columns of roughly 1.0 to 1.5 × 10^22 hydrogen atoms per square centimeter
CO and HI emission toward HESS J1731-347 arises predominantly from gas on the near side of the Galaxy
HI and CO surveys give a total gas column below about 1 × 10^22 hydrogen atoms per square centimeter in front of the Scutum-Crux arm toward HESS J1731-347
The Scutum-Crux spiral arm toward HESS J1731-347 lies at a kinematic distance of about 3.2 kiloparsecs
atomic
The spatial pattern of X-ray absorption across HESS J1731-347 correlates with Scutum-Crux arm molecular gas
atomic
Far-side atomic gas association· for
HESS J1731-347 is associated with atomic gas at a kinematic distance of 5.2 to 6 kiloparsecs
atomic
Line-of-sight distribution ambiguity· against
The X-ray-absorbing material toward HESS J1731-347 is distributed along the line of sight rather than concentrated near 3 kiloparsecs
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X-ray absorption compared with CO and HI gas columns places HESS J1731-347 at least 3.2 kiloparsecs away
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