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Table 2

List of molecular species and transitions observed with HIFI in L1157 B2 and R.

Transition ν0a Eua HPBW Tpeak rmsb Vpeak Vmax Vmin FWHM Fint
(MHz) (K) (″) (mK) (mK) (km s-1) (km s-1) (km s-1) (km s-1) (mK km s-1)

Bow-shock B2
HCO+ (6−5) 535 061.40 90 37 19(2)c 3 +2.2(0.1)c +7 –2 3.3(0.3)c 67(6)c
CH3OH-E (111,10 −  −101,9) 536 191.07 169 37 10(2)c 3 +1.6(0.3)c +7 –4 4.3(0.7)c 48(6)c
C18O (5−4) 548 830.97 79 37 24.3(2)c 3 +2.4(0.1)c +5 –0 2.5(0.3)c 66(3)c
NH3 (10 − 00) 572 498.07 28 38 83.6(8)c 8 +0.9(0.2)c +7 –6 6.2(0.4)c 549(31)c
13CO (10−9) 1 101 349.65 291 21 20
Bow-shock R
NH3 (10 − 00) 572 498.07 28 38 28(8) 8 +6.6(1.0) +9 –0 105(9)

Notes. Peak velocity, intensity (in TA scale), integrated intensity (not corrected for beam efficiency, Fint), minimum and maximum velocities (Vmin, Vmax), and linewidth (FWHM) are reported.

(a)

Frequencies and spectroscopic parameters have been extracted from the Jet Propulsion Laboratory molecular database (Pickett et al. 1998).

(b)

At a spectral resolution of 1 km s-1.

(c)

Gaussian fit when the observed profile is a Gaussian-like.

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