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[vsnet-alert 1343] Gamma-ray outburst of PKS 2155-304 -Reply
- Date: Fri, 21 Nov 1997 11:14:14 +0200
- To: tkato@kusastro.kyoto-u.ac.jp, vsnet-alert@kusastro.kyoto-u.ac.jp
- From: Berto Monard <lagmonar@csir.co.za>
- Subject: [vsnet-alert 1343] Gamma-ray outburst of PKS 2155-304 -Reply
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- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
Hi,
I happen to have made some observations recently of this BL Lac
object. As it is new on my list and for lack of any history or records
I did not report their observations so far.
Just by memory...
November 1997
Blazar UT Magn
PKS 2155-304 18.75 12.9 *
and
PKS 2005-489 19.8 12.5 *
PKS 2005-489 20.8 12.5
Sequences were derived visually from nearby GSPC magnitudes
and sequences provided by P Mc Gee (for PKS 2155):
* the V magnitudes in the literature were 13.1 and 13.4 for PKS
2155-304 and PKS 2005-489 respectively. In view of this the latter
one seems to be even more 'active' as per brightness shown.
Regards,
Berto Monard,
Pretoria
>>> Taichi Kato <tkato@kusastro.kyoto-u.ac.jp> 11/21 3:52 am >>>
Gamma-ray outburst of PKS 2155-304
IAUC No. 6774 tells that the above Blazar is reported to undergo a
gamma-ray outburst (for the period Nov. 11-17). For a detail, please
refer to the corresponing IAUC issue. This Blazar has been
requested
for optical monitoring, and I transferred messages to vsnet-alert
(nos. 1209, 1210, 1244).
Follow-up observations are highly encouraged.
Regards,
Taichi Kato
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