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[vsnet-campaign-sn 399] types of recent SNe
Dear SN watchers,
The CfA team has taken spectra of some recent SNe.
SN 2002bt:
In [vsnet-obs 39185]:
>SN2002bt 20020325.4 179:C KAI
>
># It is a distant SN, which seems not to reach 17 mag.
It is of type Ia, about 2 weeks after maximum on Apr. 3.
SN 2002bv:
In [vsnet-campaign-sn 396]:
># UGC 4042 = the host of SN 2002bv is a distant spiral galaxy. The
>expected maximum for typical SN Ia is mag about 17.0.
It is type IIn supernova, like as SN 2002bu.
SN 2002bx:
In [vsnet-campaign-sn 397]:
> The recession velocity of IC 2461 is measured as 2260 km/s. The
>Galactic extinction is negligible. If it is unreddened by the
>interstellar matter in the host galaxy, the expected maximum for
>typical SN Ia is mag about 14.0. The spectroscopic classification and
>the followup magnitude estimates are urged.
It is normal type-II SN caught on the early phase. The continuum is
quite blue, but narrow Na D lines are visible.
The spectra of these supernovae can be seen at the CfA site:
http://cfa-www.harvard.edu/cfa/oir/Research/supernova/RecentSN.html .
Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp
vsnet-adm@kusastro.kyoto-u.ac.jp
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
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