[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]
[vsnet-campaign-sn 310] SN 2001is and 2001it
Dear SN watchers,
IAUC 7787 reported the spectroscopic observation of two SNe.
I wrote in [vsnet-campaign-sn 304]:
># NGC 1961 = the host galaxy of SN 2001is also produced SN Ia 1998eb.
># The recession velocity of NGC 1961 is 3934 km/s, from which the
># expected maximum for SN Ia is mag about 15.6.
SN 2001is is of type Ib, 2-3 weeks after maximum on Jan. 8.86. The
most recent reported magnitude is 170:C on Dec. 30.989 by Odd Trondal.
># MCG +09-25-15 = the host galaxy of SN 2001it is rather distant,
># whose expected maximum if it is of type Ia is mag about 17.4.
This SN is turned out to be of type II SN around maximum on Jan. 8.
No magnitude estimate has not been reported other than at discovery
report (IAUC 7782, mag 17.4 at Dec. 26.130), which is quite bright as
type II SN.
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
VSNET Home Page