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- Path: sparky!uunet!cs.utexas.edu!asuvax!ncar!noao!amethyst!organpipe.uug.arizona.edu!sculptor!foltz
- From: foltz@as.arizona.edu (Craig B. Foltz)
- Newsgroups: sci.astro
- Subject: Re: Gravitational lenses
- Message-ID: <1992Nov20.131450.20364@organpipe.uug.arizona.edu>
- Date: 20 Nov 92 13:14:50 GMT
- References: <168A472BD.GILMART@LSTC2VM.stortek.com>
- Sender: news@organpipe.uug.arizona.edu
- Reply-To: foltz@as.arizona.edu
- Organization: MMT Observatory, Univ.of Arizona
- Lines: 25
-
- In article GILMART@LSTC2VM.stortek.com, GILMART@LSTC2VM.stortek.com (Paul Gilmartin) writes:
- >In article <Vm4FuB3w165w@west.darkside.com>
- >max@west.darkside.com (Erik Max Francis) writes:
- >
- >>millnerrl@vtcc1.cc.vt.edu (CALLABLE_TPU) writes:
- >>> an odd stellar object called I believe "The Einstein Cross" that was explaine
- >>
- >>I've never heard of the Einstein Cross, but I _do_ know of the Einstein
- >>Ring.
- >
- >The name I vaguely recall is "Huachra's (sp.? Huchra's?) Cross." Maybe
- >you can find it in an index by that name.
- >>
- There are two objects which fit this description. The first is 2237+03, which
- shows four images of the same object separated by a few arcsec. This was discovered
- by Huchra et al as part of the CfA Redshift Survey. The 'Einstein Cross' is the
- well-known BAL (broad absorption line) QSO 1413+113, which was shown to have four
- images arranged in a cross, with maximum separation of about 1.2 arcsec (I'm
- woking from memory here). I believe that both have been imaged with HST.
-
- ---
- Craig Foltz cfoltz@as.arizona.edu
- Multiple Mirror Telescope Observatory Tel (602) 621-1269
- Univ. of Arizona, Tucson, AZ 85721 Fax (602) 670-5740
- "Help me! I've fallen and I can't reach my mouse!"
-