MDS id | Observed | Model | Residual | |
HST 14176+5226 u26x8:0009 | ||||
HST 12531-2914 urz00:0035 | ||||
HST 14164+5215 u26xi:0017 | ||||
HST 15433+5352 uvd01:0014 | ||||
HST 01247+0352 uci10:0034 |
MDS id | Observed | Model | Residual | |
HST 01248+0351 uci10:0050 | ||||
HST 16302+8230 urg01:0042 | ||||
HST 16309+8230 urg01:0010 | ||||
HST 12368+6212 uhdfk:0056 | ||||
HST 18078+4600 uqc00:0029 |
For Press coverage on the WFPC2 HST lens discoveries click.
Ratnatunga, K. U., Griffiths, R. E. & Ostrander, E. J. 1999,
The Top Ten List of Gravitational Lens Candidates from the
HST Medium Deep Survey
Astronomical Journal
117 2010-2023 .
astro-ph/9902100
The observed regions cutout from HST WFPC2 images are 64 pixels of of
the CCD or 6.4 arc seconds on a side.
All of the color images
above were created using a fixed algorithm to transform the observed
single filter F814W(R), F606W(G) and when available F450W(B) to color
JPG. Although the color balance is probably not as pretty as images
that may be created using interactive software procedures, these
images can be inter-compared more realistically.
Note however that
the color of the lensing galaxies are not yellow at the center but a
bright red. The yellow produced by color saturation is used to
indicate brightness to otherwise flat images.
To visualize gravitational lens configurations try out the interactive online WFPC2 HST lens image creator.
This cgi driver was written in FORTRAN back in 1999 at Carnegie Mellon University. After I retired back to Sri Lanka, virtual-universe.org was hosted at bluehost.com from 2006 July. After Bluehost stopped support of FORTRAN in 2019 October it was moved to a VPS on AWS, which was setup for me by Gayan Sirimana. It was recompiled using gfortran and activated on 2020 January 23rd. It is probably the only cgi written in FORTRAN
For more information on Gravitational lenses please also look at
Comments: E-mail kavan@astro.phys.cmu.edu - Kavan's Home page.