[vsnet-campaign-sn 523] classifications of recent SNe

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

Dear SN watchers,

  IAUC 8037 informed the classifications of two recent SNe.

SN 2002jy:
In [vsnet-campaign-sn 521] (Dec. 19):
># NGC 477, a host galaxy of SN 2002jy (1:21:16.27, +40:29:55.3
># (J2000.0), offset = 46"W, 38"N), is a open spiral (SAB(r)c) galaxy,
># which makes a pair with MCG +07-03-031.  The SN is located on the
># outermost northwestern arm.  There is a bright (mag about 15)
># foreground star about 15" ENE of the SN (44" NW of the nucleus of
># NGC 477).  The expected maximum for typical SNe Ia is mag about
># 16.3. 

  The CfA team revealed that it is type Ia SN near maximum on Dec.
26.11 UT.

SN 2002jz = SN in UGC 2984:
In [vsnet-campaign-sn 522] (Dec. 25):
>  CBET 2 informed the discovery of an apparent supernova in UGC 2984.
>It was at mag 15.9 on Dec. 23.27, but was below 19.5 on Dec. 5.  It is
>located at R.A. = 4h13m12s.52, Decl. = +13d25'07".3 (equinox 2000.0),
>which is about 1" west and 4" south of the center of UGC 2984, an
>irregular galaxy (SBdm:).  It is superimposed on the bright central
>region.  Many foreground stars can be seen around the galaxy.  
>
>  UGC 2984 is affected by the Galactic extinction; Schlegel et al.
>(1998) suggested that A_B = 2.430 mag, while Burstein and Heiles
>(1982) gave a smaller value (A_B = 0.960 mag).  If we take the former,
>the expected maximum for a typical SN Ia without the extinction in the
>host galaxy is mag about 15.0.  Spectroscopic confirmation and
>follow-up photometry is encouraged.

  The spectrum taken with the Las Campanas Observatory Dupont 2.5-m
telescope on Dec. 27.22 revealed that it is type Ic SN about 10 days
past maximum.  It is also reddened by dust in the host galaxy.

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

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