[vsnet-alert 1852] XTE J2012 (fwd) Hjellming

[Taichi Kato <tkato>]

From rhjellmi@aoc.nrao.edu Tue Jun  2 12:23 JST 1998
X-Sender: rhjellmi@aoc.nrao.edu
Date: Mon, 01 Jun 1998 20:59:07 -0600
To: Taichi Kato <tkato@kusastro.kyoto-u.ac.jp>
From: "Robert M. (Bob) Hjellming" <rhjellmi@aoc.nrao.edu>
Subject: Re: XTE J2012+381
Cc: HARMON@SSLMOR.msfc.nasa.gov, chaswell@star.cpes.susx.ac.uk,
        dasmith@space.mit.edu, ehm@space.mit.edu, gehrels@lheavx.gsfc.nasa.gov,
        giommi@napa.sdc.asi.it, jeanz@purple.sron.ruu.nl,
        rmw@lowell.edu.jem@head-cfa.harvard.edu, lewin@space.mit.edu,
        rr@space.mit.edu, shrader@grossc.gsfc.nasa.gov,
        stroh@pcasun1.gsfc.nasa.gov, swank@pcasun1.gsfc.nasa.gov,
        xteplan@xgo2.nascom.nasa.gov
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At 11:18 AM 6/2/98 +0900, Taichi Kato wrote:
>XTE J2012+381
>
>   The improved position by Hjellming et al. (IAUC 6924), of the likely
>radio counterpart:
>
>   20h 12m 37s.70
>   +38o 11' 01".2
>
>   This location is very close (separation 1".3) to the following 18-th mag
>star in USNO A1.0:
>

FYI Mark Wagner previously informed me about the coincidence of the radio
source with this star.  Unless we can establish short time scale radio
variability this is now most likely a background quasar.  Optical spectrum
work is
needed just in case we are lucky and this is the source of the 2012+38
X-rays - and is a star system that can be studied in detail in the optical.

Cheers, Bob Hjellming

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