[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]
[vsnet-obs 27357] SN observation (APO)
- Date: Tue, 25 Apr 2000 10:30:52 +0900 (JST)
- To: vsnet-obs@kusastro.kyoto-u.ac.jp, isn_chat@supernovae.net
- From: Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>
- Subject: [vsnet-obs 27357] SN observation (APO)
- Cc: yamaoka@rcsvr.rc.kyushu-u.ac.jp
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
>Date: Mon, 24 Apr 2000 20:53:48 -0400
>From: David Bishop <dbishop@vhdl.org>
>Subject: More SN Observations
>
>-------- Original Message --------
>Date: Mon, 24 Apr 2000 15:30:06 -0700 (PDT)
>From: Kevin Krisciunas <kevin@lensing.astro.washington.edu>
>To: David Bishop <dbishop@vhdl.org>
>
>
>Message send to Dan Green at IAU telegrams office:
>
>Preliminary photometry of SN 2000bk by Kevin Krisciunas (University of
>Washington) and Russet McMillan (Apache Point Observatory), using APO
>3.5-m telescope and 5.6 arcsec diameter software aperture. Estimated
>uncertainties are +/- 0.05 mag for V magnitudes and +/- 0.03 mag for
>colors:
>
>April 24.19 V = 17.24, B-V = 0.78, V-R = 0.01, V-I = -0.20
>
>-----------------------------------------------------------------------
>
>For SN 2000bs we get
>
>April 24.24 V = 18.10, B-V = 0.19, V-R = 0.19, V-I = 0.40
>
>Dates are UT (year 2000 of course).
>
>-----------------------------------------------------------------------
>
>Photometry of the possible SN in NGC 5303 on April 21.26 and April 24.22
>show no significant photometric changes in B and V, with respect to the
>brightest nearby field star. I think it is a foreground star.
>__________
>
>
>If 2000bk is a Type Ia, it is mostly likely about two weeks past
>B-band max. If 2000bs is a Type Ia, it is reddened by a couple
>tenths and not yet at max.
>
>I got enough standards to have the first cut at the field star
>calibration of 2000bk and bs. I have not put this stuff on my web
>page (yet).
>
>Last night I also got spectacular B and V images of M 98, M 99 and M 100
>in Virgo/Coma. Those can serve as templates for future supernovae that
>may appear in them. Wish I had had such for M 88 before it had 99cl
>last
>year.
>
>Kevin
Reformatted:
SN2000bk 20000424.19 17.24V APO
SN2000bk 20000424.19 18.02B APO
SN2000bk 20000424.19 17.23R APO
SN2000bk 20000424.19 17.44I APO
SN2000bs 20000424.24 18.10V APO
SN2000bs 20000424.24 18.29B APO
SN2000bs 20000424.24 17.91R APO
SN2000bs 20000424.24 17.70I APO
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
VSNET Home Page