[vsnet-campaign-sn 101] SN Ia 2000dr

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

Dear SN watchers,

  IAUC 7505 tells the KAIT discovery of a fresh supernova.  SN 2000dr
is discovered on Oct. 5.3 (mag about 18.1) and confirmed on Oct. 6.3
(mag about 17.8).  The location is: R.A. = 1h01m44s.04, Decl. =
-15o34'09".1 (2000.0), which is about 21" east and 5" south of the
nucleus of the lenticular ((R')SAB0+) galaxy IC 1610.   It is on the
outer region of the galaxy, and aligns to the elongated direction of
the core.  There is mag 13 star 30" NNW of the nucleus, and fainter
object (can be a companion galaxy) 45" NE of the nucleus.  

  Such early type galaxies are believed to produce SNe Ia only.  

  CTIO team has observed this SN and the information is loaded at:
http://vsnet.ctio.noao.edu/~nick/sn/sn2000dr/sn2000dr.html.  The color
image shows that SN 2000dr at Oct. 7/8 is extremely blue, which
indicates that it is a quite young object.  The spectrum is also shown
at there site, which shows that it is of type Ia object.  The Si
feature around 580 nm is rather deep, which tells that it would be a
subluminous SN Ia. 

  Typical SNeIa on this distance (v_r = 5635 km/s) will be about mag
16.0 at their maximum.  The follow-up observation of this somewhat
peculiar SN Ia is highly urged.

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

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