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Table 4

Comparison of HCN maser and IR photon luminosities.

Object S12 μm Lph (12 μm) Lph(M)
(Jy) 1042 s−1 1042 s−1
R For 254 620 6
R Lep 380 1000 5
AI Vol 613 4100 200
X Cnc 90 400 <1.3
CQ Pyx 737 13000 300
CW Leo 47 500 18 000 39
X Vel 89 200 5
RW LMi 3320 19 000 160
U Hya 206 260 <0.7
V Hya 1110 2200 14
V358 Lup 793 9700 87
X Tra 201 410 3
II Lup 1320 4200 40

Notes. Comparison of IR and (0, 11c, 0) maser luminosities. Columns are (left to right) the name, flux density in the 12 μm IRAS band (taken from the IRAS Point Source Catalog https://heasarc.gsfc.nasa.gov/W3Browse/all/iraspsc.html), and the photon rates emitted in the maser line and at 12 μm in a wavelength range that corresponds to the velocity range covered by maser emission (taken from Table 3). In the two cases for which no maser line was detected (X Cnc and U Hya), upper limitswere calculated using the velocity range covered by emission in the (0,0,0) line and the 3σ upper limitsfor the maser-line integrated flux density given in that table.

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