[vsolj-alert 521] RX J0640-24 in bright outburst

[Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>]

RX J0640-24 in bright outburst

　またまたニュースです。観測に間に合うでしょうか？

Date: Fri, 7 Jan 2000 08:46:14 +0100
From: Patrick Schmeer <extpasc@rz.uni-sb.de>
Subject: [vsnet-alert 3956] RX J0640-24 in bright outburst

RX J0640-24  (UG:)

RXJ0640-24  20000104.302  154C  Scp
RXJ0640-24  20000106.348  115C  Scp
Sequence:   USNO-A2.0 (red magnitudes) 
Instrument: IRO (0.5-m RCT + AP-8)

A minor brightening was observed with the same instrument on 1999
Dec. 14. The only previously known outburst was recorded on an ESO
B plate (mag about 11).

This cataclysmic variable is also known as 1RXS J064047.8-242305
and RE J0640-24.

USNO-A2.0 data: 06:40:47.723 -24:23:14.50 (2000.0) r= 14.7, b= 16.3

Robert Fried (Braeside Observatory) confirms the outburst and
reports an instrumental unfiltered magnitude of 11.8 for Jan.
7.185 UT. 

Time-resolved photometry during the current bright outburst is
strongly recommended.
 
Patrick

　ROSATでは以下の通りです。

064047.7 -242304 (2000.0) 1RXS064047.8-242305 0.819 0.03 0.26

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