[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]

[vsnet-campaign-sn 165] SN 2001ad and foreground stars



Dear SN watchers,

  On the same IAUC as the discovery of SN 2001ac in NGC 3504, the
Beijing discovery of nearby SN 2001ad was reported.  There are three
USNO_A2.0 stars around the position of SN 2001ad.
               R.A   (2000.0)  Decl.
  SN 2001ad 17h24m02s.40  +58o59'52".2  KAIT position
  A               03s.08  +59o00'13".4  r=16.1 b=16.8
  B               01s.31  +58o59'45".8  r=16.4 b=17.3
  C               01s.53  +59o00'11".8  r=17.3 b=17.5
  NGC 6373        07s.98  +58o59'41".9  USNO_A2.0 position

  From the recesison velocity of the host galaxy (3320 km/s from NED),
the expected maximum of the typical unreddened SN Ia is around mag 15.
The reported magnitudes of SN 2001ad (17.4:C on Mar. 11.8 by Beijing
team; 18.4C: on Mar 13.5 by KAIT) suggest, however, that it will not
become so bright.  

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

VSNET Home Page


vsnet-adm@kusastro.kyoto-u.ac.jp

VSNET Home Page

Return to Daisaku Nogami


vsnet-adm@kusastro.kyoto-u.ac.jp