M15:AC211/X2127+119: Optical curve, improved ephemeris, and phasing of EXOSAT X ray data

Details M15:AC211/X2127+119: Optical curve, improved ephemeris, and phasing of EXOSAT X ray data M15:AC211/X2127+119: Optical curve, improved ephemeris, and phasing of EXOSAT X ray data

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..267a&link_type=abstract

In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 1: X Ray Binaries p 267-268 (SEE N90-25711 19-89)

Astronomy and Astrophysics

Astronomy

2

Data Processing, Ephemeris Time, Exosat Satellite, Light Curve, X Ray Binaries, Ephemerides, Stellar Orbits, Stellar Radiation, X Ray Astronomy

Scientific paper

The study of the high resolution charged-coupled device images of the M15 globular cluster is carried out. Analysis of the U-band images yielded 358 differential photometric measurements and timing analysis of this data set allowed improvement of the orbital period for the system. The two sets in which data can be separated, when folded with the new ephemeris, are shown. The EXOSAT data is discussed in the framework of the new ephemeris.

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