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IAUC 8069: 2003aj, 2003ak, 2003al, 2003am,, 2003an; Poss. N IN M81

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                                                  Circular No. 8069
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)


SUPERNOVAE 2003aj, 2003ak, 2003al, 2003am, AND 2003an
     Five additional apparent supernovae have been discovered, as
tabulated below.  SNe 2003aj, 2003ak, and 2003al were reported by
H. C. Ferguson, Space Telescope Science Institute, on behalf of the
GOODS Treasury Team (+ K. S. Lee) and the Hubble Higher-z Supernova
Team (cf. IAUC 8038), from images of the Chandra Deep Field South,
each object detected by subtracting images taken on 2002 July 31-
Aug. 4, Oct. 31-Nov. 3, and Dec. 19-22 from ACS images taken on
Feb. 1-5, with each new object detected independently in each of
four separate z-band (F850LP) exposures, and their z-band
magnitudes tabulated below.  SNe 2003am and 2003an were LOTOSS (cf.
IAUC 8068) discoveries, reported by D. Weisz and W. Li from
unfiltered KAIT images.

SN      2003 UT       R.A.  (2000.0)  Decl.   Mag.      Offset
2003aj  Feb. 3.19    3 32 44.33  -27 55 06.4  25.7   0".03 W, 0".08 S
2003ak  Feb. 3.19    3 32 46.90  -27 54 49.3  25.8   0".28 E, 0".39 S
2003al  Feb. 5.74    3 32 05.39  -27 44 29.2  24.5   0".03 W, 0".07 N
2003am  Feb. 9.5    13 20 43.57  -22 02 53.5  17.8   2".9 W, 11".1 N
2003an  Feb. 9.6    13 27 53.55  +28 30 29.2  16.9   4".2 E, 0".1 N

SN 2003al was detected also in two separate i-band (F775W)
exposures, while SNe 2003aj and 2003ak were only marginally
detected in the i band; none of the three HST objects was detected
in images taken on 2002 Sept. 20.99, Nov. 2.51, and Dec. 22.10 UT
(limiting magnitude z = 28).  Additional approximate magnitude
estimates:  SN 2003am in ESO 576-G40, 2002 Jan. 12.3, [19.0; 2003
Feb. 10.4, 17.7.  SN 2003an in MCG +05-32-22, Jan. 18.5, [18.5;
Feb. 10.4, 17.0.  SN 1997br also occurred in ESO 576-G40.


POSSIBLE NOVA IN M81
     Weisz and Li also report a possible nova found on unfiltered
KAIT images from Feb. 9.4 (mag about 17.8) and 10.4 UT (mag about
17.9), with a hint of the new object on Feb. 6.4.  The new object
is located at R.A. = 9h55m48s.59, Decl. = +69o03'04".3 (equinox
2000.0), which is 82".6 east and 50".8 south of the nucleus of M81
(= NGC 3031).  A KAIT image taken on Jan. 29.4 showed nothing at
this position (limiting mag about 19.5).  Weisz and Li add:  "At
the distance of M81 (3.6 Mpc; Freedman et al. 1994, Ap.J. 427,
628), the object has an absolute magnitude of about -10, which is
extremely bright for a nova.  Spectroscopic observations are thus
encouraged for the object."

                      (C) Copyright 2003 CBAT
2003 February 10               (8069)            Daniel W. E. Green

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