Multiwavelength observations of XTE J1859+226

Bibcode
2000ATel...55....1H
Haswell, C. A.; Chaty, S.; Cui, W.; Casares, J. V.; Hynes, R. I.
Bibliographical reference

The Astronomer's Telegram, #55

Advertised on:
3
2000
Number of authors
5
IAC number of authors
0
Citations
2
Refereed citations
1
Description
On March 2 06:00 UT the transient source XTE J1859+226 had faded considerably to R=18.0 in the optical (IAC) and to a flux of about 13 mCrab (RXTE ASM). However, it clearly remains active in the X-rays. From extrapolating the last spectrum obtained with HST on 2000, February 8th we predict the following approximate magnitude and colours: V~18.4, U-B=-0.5, B-V = V-R = R-I = +0.4. A final simultaneous HST/RXTE visit to this source (most likely a black hole) is scheduled for 2000, March 5th between 06:10 and 13:41 UT.
Type
Non-refereed
Black holes
Neutron stars

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