Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 7136: SNe; 37P; 29P

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 7135 SEARCH Read IAUC 7137

View IAUC 7136 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 7136
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, on behalf of the Supernova Cosmology Project, report
the discovery of nine supernovae in the course of the automated
supernova search with the 1-m Marly telescope (+ CCD) at La Silla
(limiting mag about 21.5; cf. IAUC 7117):

SN       1999 UT     R.A.  (2000.0)  Decl.     R      Offset
1999bi   Mar. 11   11 01 15.76  -11 45 15.2   20.5   0".8 E, 0".8 N
1999bj   Mar. 11   11 51 38.39  -12 29 08.3   20.8   0".8 E, 4".0 S
1999bk   Mar. 15   11 28 52.01  -12 18 08.3   19.1   0".2 E, 6".5 S
1999bl   Mar. 15   11 12 13.60  - 5 04 44.8   21.2   2".2 E, 2".7 S
1999bm   Mar. 15   12 45 00.84  - 6 27 30.2   20.5   3".4 E, 1".4 N
1999bn   Mar. 17   11 57 00.40  -11 26 38.4   19.6   0".9 W, 0".2 N
1999bo   Mar. 18   14 21 07.48  - 5 57 25.8   19.7   7".6 E, 2".7 N
1999bp   Mar. 20   11 39 46.42  - 8 51 34.8   18.8   2".6 E, 2".6 N
1999bq   Mar. 20   13 06 54.46  -12 37 11.6   20.1   1".7 E, 4".1 N

CCD spectra show that all of these are consistent with type-Ia
events; the following data indicate the date the spectrum was
obtained, the observer (A = G. Aldering at the Cerro Tololo 4-m
telescope; D = T. Dahlen at the Nordic Optical Telescope, with
analysis contributed by A. Goobar and I. Hook), the redshift (z),
and the estimated distance in time from maximum light:  SN 1999bi,
Mar. 16, A, 0.124, near; SN 1999bj, Mar. 16, A, 0.16, 17 days after;
SN 1999bk, Mar. 16, A, 0.096, 2 days after; SN 1999bl, Mar. 24, A,
0.3, near; SN 1999bm, Mar. 21, A, 0.15, near; SN 1999bn, Mar. 23,
D, 0.12, near; SN 1999bo, Mar. 30, A, 0.13, after; SN 1999bp, Mar.
21, A, 0.077, 8 days before; SN 1999bq, Mar. 23, D, 0.149, near.


COMET 37P/FORBES
     Visual m_1 estimates:  Mar. 21.50 UT, 13.3: (A. Hale,
Cloudcroft, NM, 0.41-m refl.); 27.86, 13.5 (A. Pearce, Nedlands, W.
Australia, 0.41-m refl.).


COMET 29P/SCHWASSMANN-WACHMANN 1
     Total magnitude estimates, visual unless otherwise noted:
Mar. 22.77 UT, 15.3: (A. Nakamura, Kuma, Japan, 0.60-m reflector +
CCD); 28.48, 13.0: (Hale); 30.84, 12.8 (Pearce); 31.87, 12.6
(Pearce).

                      (C) Copyright 1999 CBAT
1999 April 1                   (7136)            Daniel W. E. Green

Read IAUC 7135 SEARCH Read IAUC 7137

View IAUC 7136 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!