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

[vsnet-campaign-xray 197] GX 339-4 = V821 Ara entered a low/hard state

Date: Tue, 25 Feb 2003 13:30:16 +0900 (JST)
To: vsnet-campaign-xray@ooruri.kusastro.kyoto-u.ac.jp
From: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
Subject: [vsnet-campaign-xray 197] GX 339-4 = V821 Ara entered a low/hard state
Delivered-To: vsnet-campaign-xray-archive@ooruri.kusastro.kyoto-u.ac.jp
Delivered-To: vsnet-campaign-xray@ooruri.kusastro.kyoto-u.ac.jp
Sender: owner-vsnet-campaign-xray@ooruri.kusastro.kyoto-u.ac.jp

GX 339-4 = V821 Ara entered a low/hard state

   According to ATEL #120, the black hole candidate GX 339-4 = V821 Ara has
apparently entered a low/hard state.  The object is located at
17:02:49.4 -48:47:22 (J2000.0), and can be reached with a CCD + a moderate
telescope.  Optical/IR observations would be encouraged to follow its
activity.  This source is known to show short-term variations; time-resolved
photometry, if possible, is preferrable.

Regards,
Taichi Kato

Return to Home Page

Return to the Powerful Daisaku

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

Prev by Message: [vsnet-campaign-xray 196] Re: IGR J16318-4848 optical detection
Next by Message: [vsnet-campaign-xray 198] IGR J19140+098
Prev by thread: [vsnet-campaign-xray 196] Re: IGR J16318-4848 optical detection
Next by thread: [vsnet-campaign-xray 198] IGR J19140+098
Index(es):
- Message
- Thread