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Radial velocity of the IRAS04296

We measured the radial velocity ${\rm V_r}$ using our best spectrum, that obtained in February, 1997. The average value of the radial velocity from numerous metal lines (${\rm V_r\,=\,-56.0\pm 0.8\,km/s}$) and from the ${\rm H_{\alpha}}$ absorption line (${\rm V_r\,=\,-54.5\,km/s}$) agree within the accuracy of measurement. This radial velocity is consistent with a membership of an old population as suggested by the low metallicity (see Table1). It should be noted also that the value of radial velocity we derived agrees with the value of ${\rm V_r\,=\,-59\,km/s}$ which was given by Omont et al. (1993) from CO data and ${\rm V_r\,=\,-62\,km/s\pm 1.0\,km/s}$ by Decin et al. (1998) from optical spectrum. There is still no sign of an essential temporal variability of ${\rm V_r}$ for the object.



Klochkova V.G.
12/20/1999