[vsnet-alert 6791] SN 2001fa in NGC 673

[Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>]

Dear SN watchers,

  The KAIT team discovered another bright SN in NGC 673.  It is rising
and of very young type-IIn, and intrinsically quite bright.  

  The discovery made on Oct. 18.4 (mag about 16.9) and it brightened
about 0.5 mag on the next day.  The position of the new object is R.A.
= 1h48m22s.22, Decl. = +11o31'34".4 (2000.0), which is about 4" west
and 18" north of the nucleus of the face-on spiral (SAB(s)c) galaxy
NGC 673.  The SN superimposed on the inner arm region.  There are few
foreground stars, but luminous H II regions are aligned on the outer
arm.  

  NGC 673 has produced SN Ia 1996bo which was caught before the
maximum.  It went brighter than mag 16 at its maximum, although it 
seems to be affected by the reddening.  

  Spectral confirmation was done on Oct. 20.0 at Lick Observatory,
which shows that it is of type-IIn.  The brightness of type-IIn SN has
very wide range, but this SN seems to belong to the luminous class.
It can reach (or become brighter than) typical SN Ia, which is
expected to be mag 15.8 at maximum for this galaxy.  Follow-up
photometry is urged.

Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp

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