Using spectroscopic data taken with OSIRIS spectrograph at the 10.4m-GTC telescope, we discover that the orbital period of the secondary star of the black hole...
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PublicationXTE J1118+480: The spiral-in of a star to a black hole
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PublicationXTE J1550-564
IAUC 7113 available at Central Bureau for Astronomical Telegrams.
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PublicationXTE J1650-500
IAUC 7989 available at Central Bureau for Astronomical Telegrams.
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PublicationXTE J1720-318
IAUC 8080 available at Central Bureau for Astronomical Telegrams.
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PublicationXTE J1751-305 going back to its quiescent state
After the recent reports of activity of the accreting millisecond pulsar XTE J1751-305 (ATELs #1045, #1046 and #1051) we obtained another Swift/XRT (~4.3ksec)...
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PublicationXTE J1752-223 has faded to quiescence: optical and infrared magnitudes
We have been regularly monitoring the outburst decay of the black hole candidate X-ray binary XTE J1752-223 (discovered by RXTE; ATel #2258) with the 2-m...
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PublicationXTE J1752-223: back to optical quiescence
We observed the black hole candidate XTE J1752-223 (ATel #2258) with the William Herschel Telescope (WHT) and the ACAM imager/spectrograph at the Observatorio...
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PublicationXTE J1855-026 is a supergiant X-ray binary
The eclipsing X-ray pulsar XTE J1855-026 (Corbet & Mukai 2002, ApJ 577, 923) has been unambiguously identified by a recent Swift observation (Romano et al...
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PublicationXTE J1859+226
IAUC 7466 available at Central Bureau for Astronomical Telegrams.