Table 3: Integration time required to detect the HDO lines with a peak signal over noise of 5 (see text). Note that only one receiver was assumed, so in principle those times can be lowered by a factor $\sqrt {2}$ by using a double polarization setup.

Transition		 IRAM 30 m JCMT HSO/HIFI

IRAS 16293 (30 $L_\odot$)

80 GHz		 5.6 h    
225 GHz 15 min    
241 GHz 30 min    
464 GHz   29 min  
490 GHz   21 min 7 min
509 GHz   34 h* 104 min
893 GHz     16 min
995 GHz     5 min

L1448 mm (5 $L_\odot$)

80 GHz		 3500 h    
225 GHz 110 h    
241 GHz 227 h    
464 GHz   185 h  
490 GHz   132 h 73 h
509 GHz   1562 h * 471 h
893 GHz     59 h
995 GHz     16 h
$\textstyle \parbox{7cm}{ $^*$\space The sensibility drops on the edge of the band.}$


Source LaTeX | All tables | In the text

Article Contents
1 Introduction
2 The model description
3 The HDO rotational line spectrum
4 Model results
5 Applications
6 Conclusions
References
Online Material
Appendix A: The predicted fluxes for the test case of IRAS 16293-2422
Appendix B: The low luminosity case: L1448 mm
List of tables
List of figures