[vsnet-chat 1939] (fwd) More high-z visual objects

[Taichi Kato <tkato>]

Date: Sun, 30 May 1999 11:41:00 -0700
From: bas@lowell.Lowell.Edu (Brian Skiff)
Subject: More high-z visual objects

Taichi,
     Here is a follow-up note about some high-z quasars observed visually
by the Texas deep-sky observers.  Clearly the redshift limit is extremely
distant!

=====================================

From: djtost@juno.com
To: bas@lowell.edu
Cc: bwilson2@ix.netcom.com
Date: Sun, 30 May 1999 12:16:57 -0500
Subject: High Redshift Quasars


Brian,

	I received your inquiry about some of the high redshift objects I
have been viewing through Barbara Wilson. We just got back from a
wonderful Texas Star Party, with over 52 hours of clear skies! For
several years I have looked through the literature before TSP to find
some high redshift objects visible in amateur instruments. 

	In 1997 we viewed B1422+231, a gravitationally-lensed system with
z=3.62. It is m16.5 (red), with the radio image revealing 4 objects
within 1.3 arcseconds. The ref. is MNRAS (1992) 259, Short Comm., 1p-4p.
There is another ref. to it in ApJ Nov. 10, 1998 (Yoshi & Kawara),
alluded to in Sky & Tel. April 1999 News Notes, p. 23. The J2000 Coord.
are: 14h 24m 38.1s, +22d 56' 00". 

	This spring I found APM 08279+5255, a z=3.87 quasar in Lynx,
m15.5 at J2000 08h 31m 41.57s, +52d 45' 17.7". These were both easily
viewed through my 25-inch Tectron. There are a few more Quasars with z> 3.0,
but these are the highest redshift objects viewed thus far. 

			Dave Tosteson

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