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IAUC 7614: 2001az; 2001ba; 2001bb

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                                                  Circular No. 7614
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


SUPERNOVA 2001az IN UGC 10483
     T. Puckett and M. Peoples, Mountain Town, GA, report the
discovery of an apparent supernova (mag 17.1) on an unfiltered CCD
frame (limiting mag 19.2) taken with the Puckett Observatory 0.30-m
automated supernova patrol telescope on Apr. 27.39 UT.  SN 2001az
is located at R.A. = 16h34m27s.71, Decl. = +76o01'46".8 (equinox
2000.0), which is 4".9 west and 0".3 north of the center of UGC
10483.  The new object was also present on an unfiltered CCD frame
taken on Apr. 28.16, but it does not appear on multiple unfiltered
images taken by Puckett from 1999 Aug. to 2000 May, and it does not
appear on Palomar Sky Survey images taken on 1994 June 2, 1992 Apr.
10 (limiting mag about 21.0), and 1955 May 20 (limiting mag about
19.7).


SUPERNOVA 2001ba IN MCG -05-28-1
     R. Chassagne, Ste. Clotilde, Ile de Reunion, reports the
discovery of an apparent supernova (mag about 15.9) on unfiltered
CCD images taken with a 0.3-m telescope on Apr. 27.8 and 28.7 UT.
SN 2001ba is located at R.A. = 11h38m01s.76, Decl. = -32o19'51".0
(equinox 2000.0), which is 18".7 east and 21".8 south of the
nucleus of MCG -05-28-1 (= ESO 439-G18).  An image of the same
field taken on Feb. 19.9 showed nothing at this position (limiting
mag about 18).
     P. Nugent and L. Wang, Lawrence Berkeley National Laboratory,
report:  "A spectrum (range 400-800 nm) obtained on Apr. 30.17 UT
at the Kitt Peak 2.1-m telescope (+ GCAM) shows that SN 2001ba is a
type-Ia supernova near maximum light.  Adopting the NASA/IPAC
Extragalactic Database recession velocity of 8819 km/s for the host,
we find that the minimum of the Si II feature is at a velocity of
10 900 km/s."


SUPERNOVA 2001bb IN IC 4319
     M. Schwartz, Cottage Grove, OR; and W. D. Li, University of
California at Berkeley, on behalf of LOTOSS (cf. IAUC 7514), report
the discovery of an apparent supernova on unfiltered images taken
with the 0.5-m Tenagra III automated telescope on Apr. 29.3 (mag
about 16.5) and 30.2 UT (mag about 16.3).  SN 2001bb is located at
R.A. = 13h43m25s.31, Decl. = -29o48'13".1 (equinox 2000.0), which
is about 16".8 west and 1".4 south of the nucleus of IC 4319.  An
image taken by the Katzman Automatic Imaging Telescope on Apr. 15.3
showed nothing at this position (limiting mag about 18.5).

                      (C) Copyright 2001 CBAT
2001 April 30                  (7614)            Daniel W. E. Green

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