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IAUC 8541: 2005ci; 2005cj; 2005ch

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IAUC number 

                                                  Circular No. 8541
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 2005ci IN NGC 5682
     Further to IAUC 8534, D. R. Madison and W. Li report the LOSS
discovery of an apparent supernova on unfiltered KAIT images taken
on June 10.31 (at mag 18.5) and 11.26 UT (mag 18.4).  SN 2005ci is
located at R.A. = 14h34m44s.88, Decl. = +48o40'19".8 (equinox
2000.0), which is 0".6 west and 6".1 north of the nucleus of NGC
5682.  KAIT images taken on May 27.30 (limiting mag about 19.5) and
June 2.31 (limiting mag about 19.0) showed nothing at this position.


SUPERNOVA 2005cj IN ESO 114-14
     Further to IAUC 8517, L. A. G. Monard reports his discovery of
an apparent supernova (mag about 17.9 +/- 0.3) on images taken on
2005 June 12.120 and 13.134 UT with a 0.30-m reflector.  SN 2005cj
is located at R.A. = 1h54m43s.94, Decl. = -62o06'32".0 (equinox
2000.0), which is 26" east and 14" south of the nucleus of the
galaxy ESO 114-14.  Nothing is visible at this location on an image
taken by Monard on 2005 May 11.14 (limiting red mag 18.5) or on an
image from the Digitized Sky Survey (limiting red mag 20.5).


SUPERNOVA 2005ch
     M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian
Center for Astrophysics; and T. Matheson, National Optical
Astronomy Observatory, report that a spectrum (range 340-730 nm) of
SN 2005ch (cf. IAUC 8539, 8540), obtained on June 10.28 UT by M.
Calkins with the F. L. Whipple Observatory 1.5-m telescope (+ FAST),
shows it to be a type-Ia supernova well before maximum light.  The
spectrum consists of a blue continuum and the characteristic Si II
feature (rest 635.5 nm), in addition to absorption lines due to Ca
II, Mg II, Fe II, Si II, and S II.
     M. Dennefeld and F. Ricquebourg, Institut d'Astrophysique de
Paris, write that a calibrated spectrum (range 465-830 nm,
resolution 0.6 nm) of SN 2005ch, obtained on June 10.93 UT with the
1.93-m telescope (+ Carelec spectrograph) at Haute-Provence
Observatory, shows a blue continuum, strong Si II (rest 635.5 nm)
absorption feature (measured at 603.3 nm), and a well-developed Fe
II 501-nm blend and S II doublet (547-565 nm) absorptions, which
indicate a type-Ia supernova a few days before maximum.  No feature
is detected from the parent galaxy.

                      (C) Copyright 2005 CBAT
2005 June 13                   (8541)            Daniel W. E. Green

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