[vsnet-alert 5596] two new KAIT SN

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

Dear SN watchers,

  KAIT discovered two new nearby SNe.  SN 2001M is fainter but
probably easier to catch because it is well outside of the central
region of the host galaxy.  Besides, SN 2001N is brighter but very
close to the host's nucleus. 

  SN 2001M is discovered and confirmed on Jan. 21.4 UT (mag 175:C) and
Jan. 22.4 UT (mag 177:C), respectingly.  The location is R.A. = 
10h24m31s.48, Decl. = -21o47'40".6 (2000.0), which is about 12" east
and 12" south of the nucleus of a face-on spiral (SAB(rs)b) galaxy NGC
3240.  This galaxy has a bright nucleus, but the new object is well
outside of the central region and embedded on the outer disk.  There
is mag 14 foreground star (GSC 6073-864, GSCmag (perhaps close to
blue)=14.18, USNO r=13.7, b=14.2) whose offsets from the nucleus of
NGC 3240 are about 22" east and 42" south.  The recession velocity of
the host galaxy (3584 km/s) suggest that expected maximum of a normal
SN Ia would be mag 15.1.

  SN 2001N also discovered and confirmed on Jan. 21.4 UT (mag 163:C)
and Jan. 22.4 UT (mag 162:C), respectingly.  The location is R.A. =
10h39m58s.08, Decl. = +24o05'26".0 (2000.0), which is very close (3"
SE) of the bright nucleus of a face-on spiral (SA(r)b) galaxy NGC
3327.  There are some foreground stars: a mag 14 star (GSC 1977-815,
GSCmag(close to V)=14.09, USNO r=14.6, b=16.4 (perhaps affected by the
backlight of the galaxy) about 24" west of the nucleus of NGC 3327,
and a mag 17: star (USNO_A2.0 position is end figures 57s.26, 57".6,
r=17.1, b=17.6) about 9" west and 29" north of the nucleus.  The
recession velocity of the host galaxy is 6303 km/s, so SN 2001N is now
about as bright as the maximum of a normal SN Ia.  The follow-up
photometry should be done with a careful treatment in order to
avoid the affection of the light from the host galaxy.

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

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