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IAUC 7117: SNe

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                                                  Circular No. 7117
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


SUPERNOVAE
     A. Kim, College de France, and N. Regnault, Laboratoire de
l'Accelerateur Lineaire, Universite de Paris-Sud, on behalf of the
EROS collaboration; and P. Nugent, Lawrence Berkeley National
Laboratory (LBNL), on behalf of the Supernova Cosmology Project,
report the discovery of nine supernovae, discovered in the course
of the automated supernova search with the 1-m Marly telescope (+
CCD) at La Silla (limiting mag about 21.5).  Finding charts can be
found at http://www.lal.in2p3.fr/EROS/SNe/Charts/.

SN      Date (UT)    R.A. (2000.0) Decl.      V      Offset
1999ad  Feb.  9   11 33 18.46  - 5 45 29.8   20.2    0".9 W, 2".2 S
1999ae  Feb. 10   11 51 24.48  - 4 39 09.4   21.2    4".6 E, 4".6 S
1999af  Feb. 12   13 44 50.95  - 6 40 12.6   20.6    3".4 E, 4".2 N
1999ag  Feb. 12   12 15 22.81  - 5 18 12.4   20.7    2".1 E, 1".7 S
1999ah  Feb. 13   12 09 37.20  - 6 18 34.3   20.8    0".6 E, 0".2 S
1999ai  Feb. 15   13 14 10.57  - 5 35 43.7   18.1   14".0 E 11".3 N
1999aj  Feb. 17   11 22 39.34  -11 43 53.9   20.9    1".4 W, 4".3 S
1999ak  Feb. 17   11 06 52.05  -11 39 13.3   18.7    7".6 E, 2".7 N
1999al  Feb. 21   11 10 25.68  - 7 26 37.0   19.4    6".4 E, 2".7 N

SN 1999ad was confirmed on CCD frames taken on Feb. 12 but was not
present on a frame taken on Jan. 13; SN 1999aj was confirmed on CCD
frames taken on Feb. 18 but was not present on a frame taken on
Jan. 22.  SN 1999ae was confirmed with a CCD spectrum taken at the
APO 3.5-m telescope by X. Fan (Princeton) and H. Newberg (Fermi
National Accelerator Laboratory) on Feb. 17; Nugent, G. Aldering,
and S. Deustua (LBNL) note that the spectrum is consistent with a
type-II supernova, < 1 month old; z = 0.076.  SN 1999af was
confirmed with a CCD spectrum taken at the Lick 3.0-m telescope by
Aldering on Feb. 25; Nugent and Deustua find that the spectrum is
consistent with a type-Ia event, 1 week after peak brightness; z =
0.097.  A. Goobar (Stockholm University) and I. Hook (Royal
Observatory, Edinburgh) obtained a CCD spectrum of SN 1999ag on
Feb. 13 at the Nordic Optical Telescope (NOT); they, along with
Nugent and Aldering, find that the host galaxy has z = 0.0988 from
O III, H-alpha, and H-beta lines.  The spectrum of SN 1999ag is
most consistent with an early type-II supernova at the same
redshift; however, the spectrum's signal-to-noise is too poor to
state this with much confidence.

                      (C) Copyright 1999 CBAT
1999 March 3                   (7117)            Daniel W. E. Green

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