1999ApJ...515L..93H

Query : 1999ApJ...515L..93H

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.

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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

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2MASS J06130980+4742557 * 06 13 09.8016472800 +47 42 55.787612652     16.10     G5V 3 0
2 V* SS Aur CV* 06 13 22.4340408984 +47 44 25.345431780   16.06 15.81     sdBe 272 0
3 2MASS J06132935+4744264 * 06 13 29.3564388840 +47 44 26.527311780     14.64     G2V 3 0
4 TYC 3379-664-1 * 06 13 44.3651427624 +47 44 53.434887684   12.31 12.23     F3V 6 0
5 2MASS J06134647+4743226 * 06 13 46.4690581224 +47 43 22.638114984     14.17     G5V 3 0
6 [M96a] U Gem star 4 * 07 55 04.6 +22 01 53     13.95     F5V 2 0
7 V* U Gem CV* 07 55 05.2324414746 +22 00 05.044127985   15.3 14.54     DA 1135 0
8 [M96a] U Gem star 2 * 07 55 07.0888608120 +21 59 19.602037464     14.77     G5V 2 0
9 NSV 3808 V* 07 55 23.4143482464 +21 59 57.159661236   12.03 12.10 12.14   G0V 6 0
10 [M96a] U Gem star 9 * 07 55 24.1 +21 58 40     14.20     G0V 2 0
11 TYC 3196-857-1 * 21 42 27.1692554832 +43 33 44.596183068   11.35 10.86     F8V 4 0
12 [M96a] SS Cyg star 6 * 21 42 33.2 +43 34 03     12.05     K4III 3 0
13 [M96a] SS Cyg star 12 * 21 42 35.4892576656 +43 35 43.837068228     15.11     K0V 4 0
14 V* SS Cyg CV* 21 42 42.8034497592 +43 35 09.867842484 11.07 12.651 12.032 9.326   K5V 1324 1
15 [M96a] SS Cyg star 3 * 21 42 43.4 +43 34 24     13.36     F0V 3 0
16 [M96a] SS Cyg star 14 * 21 42 58.7 +43 35 18     12.92     G0V 4 0

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