Table 3
Properties of interstellar cloud features along the line of sight to HESS J1741−302.
| Cloud number | V Int | V p | D | Mcl | nGas | M5/ |
kCR | Wpp |
|---|---|---|---|---|---|---|---|---|
| (km/s) | (km/s) | (kpc) | (M⊙) | (cm−3) | (erg) | |||
| 3 (N) | [−31, −18] | −24.2 | 6.7 | 6.3 ×104 | 380 | 0.0140 | 53 | 1.5 ×1047 |
| 1 (N) | [−2, +7] | +2.6 | 5.0 | 3.1 ×104 | 460 | 0.0125 | 60 | 7.0 ×1046 |
| (CMZ) | 8.8 | 9.7 ×104 | 260 | 0.0125 | 60 | 3.9 ×1047 | ||
| 8 (N) | [−221, −210] | −215.7 | 8.5 | 6.8 ×104 | 200 | 0.0094 | 79 | 4.7 ×1047 |
| 2 (N) | [−19, −10] | −15.7 | 6.0 | 2.8 ×104 | 240 | 0.0078 | 95 | 1.9 ×1047 |
| (F) | 11.2 | 9.8 ×104 | 130 | 0.0078 | 95 | 1.3 ×1048 | ||
| 4 (N) | [−51, −47] | −48.8 | 7.5 | 2.4 ×104 | 100 | 0.0043 | 174 | 7.3 ×1047 |
| 5 (N) | [−68, −60] | −64.2 | 7.7 | 2.3 ×104 | 91 | 0.0039 | 192 | 8.5 ×1047 |
| 6 (N) | [−120, −100] | −109.6 | 8.3 | 1.9 ×104 | 62 | 0.0028 | 270 | 1.4 ×1048 |
| 7 (N) | [−145, −165] | −154.6 | 8.4 | 2.0 ×104 | 62 | 0.0028 | 262 | 1.5 ×1048 |
Notes. The cloud number column shows the corresponding clouds from Fig. 3, it
also indicates whether the cloud is located at a near (N) or far (F) distance. The column labeled
V Int
shows the velocity integration intervals used to determine the mass of the cloud, while the columns labeled
V p and
D give the
velocity at which the maximum CO intensity occurs and the distance of the cloud from the Sun, respectively. The
Mcl column gives the mass of the
cloud in terms of solar mass (M⊙),
while the column labeled nGas
gives the gas number density of the cloud. The mass uncertainties are around
50%. The
M5 /D2
column gives the γ-ray visibility
parameter of the cloud where M5 =
Mcl /105 M⊙
is the diffuse mass of the cloud located at a distance Dkpc = D∕1
kpc. The column labeled kCR gives the calculated
CR density factor of a cloud, while the Wpp
column gives the total energy required in protons. The table is sorted according to the descending values of
M5 /
.
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