TY - JOUR
T1 - Hubble space telescope fine guidance sensor astrometric parallaxes for three dwarf novae
T2 - SS Aurigae, SS Cygni, and U Geminorum
AU - Harrison, Thomas E.
AU - McNamara, Bernard J.
AU - Szkody, Paula
AU - McArthur, Barbara E.
AU - Benedict, G. F.
AU - Klemola, Arnold R.
AU - Gilliland, Ronald L.
N1 - Funding Information:
We would like to thank Denise Taylor and Ed Nelan for their help throughout our program. Support for this work was provided by NASA through grants GO-06538.01-95A and GO-07492.01.96A from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy under NASA contract NAS5-26555.
PY - 1999/4/20
Y1 - 1999/4/20
N2 - 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.
AB - 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.
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U2 - 10.1086/311982
DO - 10.1086/311982
M3 - Article
AN - SCOPUS:0033586533
SN - 0004-637X
VL - 515
SP - L93-L96
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2 PART 2
ER -