Central Bureau for Astronomical Telegrams
IAUC 7848: 2002bq; 2002bo; 2002bm
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Circular No. 7848
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 2002bq IN MCG -06-21-1
L. A. G. Monard, Pretoria, South Africa, reports his discovery
of an apparent supernova (mag about 16.1) on three unfiltered CCD
frames taken with a 0.30-m reflector on Mar. 9.85 UT; an image
taken by Monard through clouds on Mar. 10.80 showed the new object
at mag about 16.0. SN 2002bq is located at R.A. = 9h30m50s.92,
Decl. = -35o42'06".0 (equinox 2000.0), which is in a dense star
region, 35" west and 46" south of the center of MCG -06-21-1 = ESO
373-5. A. Wassilieff, Palmerston North, New Zealand, obtained a
CCD image of the new object on Mar. 11 at mag 16.8 and position end
figures 50s.88, 05".8. Monard notes that nothing is visible at
this location on Palomar Sky Survey digitized images or on an image
taken by him on Jan. 14.00 (limiting mag 17.0).
SUPERNOVA 2002bo IN NGC 3190
H. Kawakita and K. Kinugasa, Gunma Astronomical Observatory
(GAO); K. Ayani, Bisei Astronomical Observatory; and H. Yamaoka,
Kyushu University, report that a low-resolution spectrum (range
380-750 nm) of SN 2002bo (IAUC 7847), obtained on Mar. 9.6 UT with
the GAO 0.65-m telescope (+ GCS), shows it to be a type-Ia
supernova, about 2 weeks before maximum light. The continuum
suggests that it is highly reddened. The expansion velocity
derived from the Si II absorption minimum (rest 635 nm) is about
19 000 km/s.
S. Benetti, G. Altavilla, A. Pastorello, M. Riello, and M.
Turatto, Osservatorio Astronomico di Padova; E. Cappellaro,
Osservatorio Astronomico di Capodimonte; and T. Tomov and M.
Mikolajewski, Torun, write: "Preliminary reduction of a spectrum
(range 400-780 nm, resolution 2.5 nm) of SN 2002bo, obtained on
Mar. 10.04 UT with the Asiago 1.82-m telescope (+ AFOSC), shows
that it is a type-Ia supernova, about 10 days before maximum. The
spectrum shows the strong P-Cyg profiles of Si II 635- and 596-nm
over a relatively red continuum. The spectrum resembles that of SN
1984A obtained 8 days before maximum light. The expansion velocity
measured from the Si II absorption is 17 700 km/s."
SUPERNOVA 2002bm IN MCG -01-32-19
T. Matheson, S. Jha, P. Challis, and R. Kirshner, Center for
Astrophysics, report that a spectrum (range 370-750 nm) of SN
2002bm (cf. IAUC 7845), obtained by V. Hradecky on Mar. 9.30 UT
with the Mt. Hopkins 1.5-m telescope (+ FAST), shows it to be a
type-Ic supernova.
(C) Copyright 2002 CBAT
2002 March 11 (7848) Daniel W. E. Green
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