SIMBAD references

1999ApJ...515L..93H - Astrophys. J., 515, L93-L96 (1999/April-3)

Hubble space telescope fine guidance sensor astrometric parallaxes for three dwarf novae: SS Aurigae, SS Cygni, and U Geminorum.

HARRISON T.E., McNAMARA B.J., SZKODY P., McARTHUR B.E., BENEDICT G.F., KLEMOLA A.R. and GILLILAND R.L.

Abstract (from CDS):

We report astrometric parallaxes for three well-known dwarf novae obtained using the Fine Guidance Sensors on the Hubble Space Telescope (HST). We found a parallax for SS Aurigae of π=5.00±0.64 mas, for SS Cygni we found π=6.02±0.46 mas, and for U Geminorum we obtained π=10.37±0.50 mas. These represent the first true trigonometric parallaxes of any dwarf novae. We briefly compare these results with previous distance estimates. This program demonstrates that with a very modest amount of HST observing time, the Fine Guidance Sensors can deliver parallaxes with sub-milliarcsecond precision.

Abstract Copyright:

Journal keyword(s): Astrometry - Stars: Novae, Cataclysmic Variables - Stars: Individual: Constellation Name: SS Aurigae - Stars: Individual: Constellation Name: U Geminorum - Stars: Individual: Constellation Name: SS Cygni

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