[vsnet-alert 5648] two new SNe

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

Dear SN watchers,

  The KAIT discovered two new SNe, both are considerably nearby.  The
follow-up observations are encouraged.

  SN 2001P has discovered and confirmed on Jan. 31.4 UT and Feb. 1.3
UT, respectively.  The discovery magnitude is reported as 17.5:C.  The
location is R.A. = 11h53m21s.56, Decl. = +20o44'53".3 (2000.0), which
is about 17" east and 13" south of the nucleus of the barred-spiral
((R)SB(rs)b) galaxy NGC 3947.  The new object is somewhat outside of
the inner ring-like arm.  There is a mag 14 foreground star GSC
1443-2559 (GSCmag=13.47, USNO_A2.0 rmag=14.4, bmag=16.1) about 50"
east of the nucleus of the host galaxy.

  From the recession velocity of NGC 3947, the expected maximum for
normal SN Ia is about mag 16.  Note that NGC 3947 has produced SN
1972C, which was caught at m_p = 16.  The Spectroscopy of SN 2001P has
revealed that it is of type Ia about a week past maximum, and it seems
to be subluminous.  The follow-up photometry will reveal the decline
rate, which is considered to be faster for subluminous SN Ia than a
normal one.

  On the other hand, SN 2001Q was discovered on Jan 31.4 UT (mag
18.6:C) and confirmed on Feb. 1.3 (mag 18.3:C), which indicate that it
is in rising.  The position is R.A. = 11h25m19s.77, Decl. =
+63o43'15".6 (2000.0), which is about 4" east and 30" south of the
nucleus of the dim face-on spiral (SA(rs)c) galaxy UGC 6429.  At the
very neighbourhood, there is very dim (rmag 19.8, bmag 19.5) USNO_A2.0
object (position end figures 19s.64, 15".9), which seems to be an HII
region.  Another USNO_A2.0 object (position end figures 21s.89, 6".20)
seems to be a companion galaxy or also an HII region.  

  From the recession velocity of UGC 6429, the expected maximum for 
normal SN Ia is about mag 15.  Photometric observation is encouraged
for this rising SN.  The spectrum of SN 2001Q shows that it is young
type II SN.  

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

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