[Message Prev][Message Next][Thread Prev][Thread Next][Message Index][Thread Index]
[vsnet-alert 1860] IAUC Submission on XTE J2012+381
- Date: Fri, 5 Jun 1998 09:43:26 +0100 (BST)
- To: BAILYN@astro.yale.edu, ajct@laeff.esa.es, e.kuulkers1@physics.oxford.ac.uk, fghigo@nrao.edu, garcia@head-cfa.harvard.edu, guy@mrao.cam.ac.uk, ewaltman@rsd.nrl.navy.mil, jem@head-cfa.harvard.edu, lewin@space.mit.edu, marshall@milkyway.gsfc.nasa.gov, pac@astro.ox.ac.uk, rhjellmi@aoc.nrao.edu, rmw@lowell.Lowell.Edu, rpf@astro.uva.nl, rr@space.mit.edu, shrader@grossc.gsfc.nasa.gov, starrfie@hydro.la.asu.edu, stroh@pcasun1.gsfc.nasa.gov, swank@pcasun1.gsfc.nasa.gov, takeshim@ginpo.gsfc.nasa.gov, tavani@astro.columbia.edu, narayan@cfa.harvard.edu, vsnet-alert@kusastro.kyoto-u.ac.jp
- From: Robert Hynes <rih@star.cpes.susx.ac.uk>
- Subject: [vsnet-alert 1860] IAUC Submission on XTE J2012+381
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
Dear Colleagues,
Please find attached our circular submitted to the IAU last night.
XTE J2012+381
R. I. Hynes and P. Roche, University of Sussex, report: "Images were
taken on June 3.14 - 3.23 by N. Walton (Isaac Newton Group) using the
1.0-m Jacobus Kapteyn Telescope, La Palma, of USNO 1275.13846761 (IAUC
6931), the suggested optical counterpart to XTE J2012+381 (IAUC 6920).
We estimate U = 19.4, B = 19.1, V = 17.9, R = 17.2, I = 16.6 (+/- 0.2
mag). V, R and I images also show a faint red companion star 1".2
away. We measure an offset in R.A. of -0.09s +/- 0.01, and in Decl.
+0".5 +/- 0".1 relative to USNO 1275.13846761 placing this object at
the centre of the radio error circle (IAUC 6924). We estimate V =
21.3, R = 20.1, I = 18.6 (+/- 0.3mag). These colours are consistent
with a reddened soft X-ray transient as suggested by the estimate of
A(V) = 7 deduced from ASCA spectral fitting (IAUC 6927). We therefore
propose that this object is the true optical counterpart to XTE
J2012+381."
Return to Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
VSNET Home Page