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News Release Archive:

News Release 387 of 948

November 17, 2005 01:00 PM (EST)

News Release Number: STScI-2005-32

Hubble, Sloan Quadruple Number of Known Optical Einstein Rings

Technical facts about this news release:

About the Object
Object Names:
"SDSS ..."
RA (J2000):
Dec (J2000):
Observation Dates:
Redshift
Forground Object
(zFG)
Redshift
Background Object
(zBG)
J073728.44+3216
07 37 28.44
+32 16 18.7
9/21/04
0.3223
0.5812
J095629.78+5100
09 56 29.78
+51 00 6.4
10/30/04
0.131
0.467
J120540.44+4910
12 05 40.44
+49 10 29.4
3/8/05
0.215
0.4808
J125028.26+5234
12 50 28.26
+05 23 49.1
3/12/05
0.2318
0.7946
J140228.22+6321
14 02 28.22
+63 21 33.3
8/4/04
0.2046
0.4814
J162746.45–5357
16 27 46.45
–00 53 57.6
3/20/05
0.2076
0.5241
J163028.16+4520
16 30 28.16
+45 20 36.3
10/4/04
0.2479
0.7933
J232120.93–9391
23 21 20.93
–09 39 10.3
9/6/2004
0.0819
0.5324

Object Description: Einstein Ring Gravitational Lenses
About the Data
Data Description: The Hubble image was created from HST data from proposal 10174. Members of the SLACS team include: A. Bolton (Harvard-Smithsonian CfA), S. Burles (Massachusetts Institute of Technology), L. Koopmans (Kapteyn Astronomical Institute), T. Treu (University of California - Santa Barbara), and L. Moustakas (Jet Propulsion Lab/Caltech).
Instrument: ACS/WFC
Filters: F435W (B) and F814W (I)
Dimensions/Scale: Each image is 8 arcseconds wide.
Total Exposure Time: 1.9 hours
About the Image
Image Credit: NASA, ESA, A. Bolton (Harvard-Smithsonian CfA) and the SLACS Team
Release Date: November 17, 2005
Orientation: Einstein Ring Gravitational Lens (SDSS J163028.15+452036.2)