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[vsnet-alert 1862] IAUC sumbission on XTE J2012+381
- Date: Fri, 5 Jun 1998 14:09:15 -0400
- To: BAILYN@astro.yale.edu, ajct@laeff.esa.es, chaswell@star.maps.susx.ac.uk, 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: garcia@cfa219.harvard.edu (Mike Garcia)
- Subject: [vsnet-alert 1862] IAUC sumbission on XTE J2012+381
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
Dear Colleagues - We have just submitted the following for inclusion
on the next IAUC.
-Mike Garcia
--------------------
Paul Callanan and John McCarthy (University College, Cork) and Michael
Garcia and Jeffrey McClintock (Center for Astrophysics) report:
"Observations of the XTE J2012+381 error region (IAUC 6920, 6927) were
performed using the CTIO 1.5m and CIRIM detector on June 1.36, 2.35,
3.35 and 4.36 UT. The J and K magnitudes of the object near the radio
position (IAUC 6924) were 15.0 +/- 0.1 and 14.3 +/- 0.1 respectively.
No variability at more than the 10 per cent level was observed in the
J and K bands between each night. Closer inspection of those images
with a FWHM of <1" reveal an apparent elongation of this object along
the SE-NW direction, indicating that this is a composite image of two
stars ~1" apart. This confirms the detection of the faint red
companion to USNO 1275.13846761 found by Hynes and Roche (IAUC 6932).
As the position of the NW star is consistent with the improved radio
position (IAUC 6932), it may be the true counterpart to the X-ray
source. Further observations, especially in conditions of good
seeing, are encouraged."
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