[vsnet-campaign-sn 500] classifications of recent SNe

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

Dear SN watchers,

  IAUC 8013 informed classifications of three recent SNe.

SN 2002gx:
In [vsnet-obs 41955] (Oct. 20):
>SN2002gx  20011223.0  <202C  PAL
>SN2002gx  20021013.41  190C  PAL
>SN2002gx  20021016.0   192C  PAL
>
># SN 2002gx (2:31:44.69, +40:16:39.5, J2000.0) is located about 6"
># east and 7" south of an apparent host anonymous galaxy (GSC2.2.1 red
># mag = 17.07).  

  The UCB team (with Keck I 10-m) has revealed that it is SN Ia about
2 months after maximum on Nov. 8.  The recession velocity of the host
galaxy is about 24000 km/s.  

SN 2002hu: 
In [vsnet-campaign-sn 498]:
>SN2002hu  20021004.0  <185C  Bol
>SN2002hu  20021107.09  170C  Bol
>
># MCG +06-6-12 = KUG 0215+372, a host galaxy of SN 2002hu (2:18:20.06,
># +37:27:58.8 (J2000.0), offset = 21"E, 7"N), is a small spiral galaxy
># with ultraviolet excess.  

  The CfA team (with Mt. Hopkins 1.5-m on Nov. 8.80) and the UCB team
(with Keck I 10-m on Nov. 9) revealed that it is of SN Ia a fer days
before maximum.  The recession velocity of the host galay is about
11000 km/s, so the discovery magnitude is roughly consistent with the
expected maximum brightness.

SN 2002hv:
In [vsnet-campaign-sn 498]:
>SN2002hv  20020428.2  <190:C KAI
>SN2002hv  20021105.5   186C  SCH
>SN2002hv  20021107.5   189:C SCH
>
># UGC 4974, a host galaxy of SN 2002hv (9:22:10.91, +33:50:10.8
># (J2000.0), offset = 7"E, 43"S), is a lenticular (S0:) galaxy making
># a pair with KUG 0919+340.  Such early (E-S0) galaxies produce SN Ia
># only, whose expected maximum is mag about 16.5.  It is probably old
># SN Ia.

  The CfA team and the UCB team (with the same instruments as SN
2002hu) revealed that it is SN Ia some weeks after maximum.

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

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