[vsolj-alert 623] XTE J1118+480

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

XTE J1118+480

　今朝、植村君が光学同定に成功しました。まず第１報です。
　銀河面から非常に離れていて、またまた特異なＸ線新星かも知れません。追跡が
　望まれます。

Date: Fri, 31 Mar 2000 03:59:51 +0900
From: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>
Subject: [vsnet-alert 4503] XTE J1118+480 optical counterpart?

We started CCD observation on the field of XTE J1118+480 
at Kyoto from 17:00 (UT).

There is an object brighter than 15 mag located at 1' from 
RXTE detected position (R.A. = 11h 18m 17s, Decl. = +48o 03'.0). 
In the DSS images, there are only faint objects near the position 
of this possible optical counterpart of XTE J1118+480.

The follow-up observations are strongly urged.

Regards,
Makoto Uemura and Taichi Kato

　さらに、Buczynskiが確認しました。12.9等と明るいです。

Date: Fri, 31 Mar 2000 07:08:48 +0900
From: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>

Buczynski さんがやってくれました。 12.91 等。
最初に同報で流した「約15等」は、うそでした。 比較星を見誤っていました。
だから、12.91等に急増光したわけではありません。

植村

------- Forwarded Message
Date: Thu, 30 Mar 2000 22:19:57 +0100
To: Makoto Uemura <uemura@kusastro.kyoto-u.ac.jp>
Cc: vsnet-alert@kusastro.kyoto-u.ac.jp
From: Denis Buczynski <denis@cb978iau.demon.co.uk>
Subject: Re: [vsnet-alert 4503] XTE J1118+480 optical counterpart?
In-Reply-To: <200003301859.DAA17587@pallas.kusastro.kyoto-u.ac.jp>
MIME-Version: 1.0
X-Mailer: Turnpike Version 3.03a <mvYmtZaj0Ct9bwEtTdpay3kX07>


I have observed the field of XTE1118+480 at 2000 March 30 20:43:04 UT
with the 33cm F/3 automatic reflector+SXL8 CCD unfiltered+90s exp at
Conder Brow Observatory (iau978) and have imaged a bright object at the
the location indicated by Uemura in VSNET alert 4503 and have derived
the follwing results:
XTE1118+480                    12.91
GSC3451-1542 comparision star  12.8
GSC3451-974  check star        12.22

Observations of this interesting object are continuing.
Best wishes
Denis.



In message <200003301859.DAA17587@pallas.kusastro.kyoto-u.ac.jp>, Makoto
Uemura <uemura@kusastro.kyoto-u.ac.jp> writes
>
>We started CCD observation on the field of XTE J1118+480 
>at Kyoto from 17:00 (UT).
>
>There is an object brighter than 15 mag located at 1' from 
>RXTE detected position (R.A. = 11h 18m 17s, Decl. = +48o 03'.0). 
>In the DSS images, there are only faint objects near the position 
>of this possible optical counterpart of XTE J1118+480.
>
>The follow-up observations are strongly urged.
>
>Regards,
>Makoto Uemura and Taichi Kato

- -- 
Denis Buczynski

------- End of Forwarded Message

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