[vsnet-id 269] Re: NSV 12041

[Taichi Kato <tkato>]

Re: NSV 12041

>      Since the IRAS point-source position is centered on the faint red star,
> and the 'faint-source' position (14"x1" error-ellipse, which is 1-sigma)
> centers rather squarely on the bright star, I wonder whether they refer to
> the two separate objects.  I know the person who cooked up the scheme to
> produce the IRAS astrometry; perhaps he would know if there were 
> peculiar things in the processing that might make this happen.

   Such "off-the-ellipse" displacement between IRAS PSC and FSC are pretty
common, and many of them unambiguously refer to the same object.  Unless
peculiar things happened, I presume the present case is one of rich
varieties of positional improvements in the IRAS catalog.  You may have
also noticed that the IRAS fluxes suggest that PSC and FSC entries
refer to the same object.

Regards,
Taichi Kato

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