[vsnet-alert 4225] Re: SN 2000H

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

cf. [vsnet-alert 4152] a new KAIT SN in IC 454
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/alert4000/msg00152.html
cf. [vsnet-alert 4159] SN 2000H (Re: a new KAIT SN in IC 454)
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/alert4000/msg00159.html
cf. [vsnet-alert 4216] Re: SN 2000H (Re: a new KAIT SN in IC 454)
http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/alert4000/msg00216.html

Dear SN watchers,

  According to IAUC 7367, the Asiago group claimed about the type of
SN 2000H (vsnet-alert 4216 and IAUC 7366).  They conclude that it is
of type-Ic, not peculiar type-Ia suggested by the CfA group.  The CfA
group seems to agree it, as seen in their WWW page.  Indeed, the
spectrum of peculiar (dim) SN Ia resembles very much with that of SN
Ic.  The similar case as SN 2000H was there about SN 1997ei (IAUC
6796, 6800, 6802).

  The unusual red tail of the Si II feature around 630nm can be, as
the Asiago group mentioned, an absorption by hydrogen.  It is very
important to continue the monitoring this object because it will give
a quite useful information about SN Ic/II relationship.

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

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