Phased X-ray light curve and radial velocity curve for M33 X-7

Phased X-ray light curve and radial velocity curve for M33 X-7. (a) The Chandra ACIS light curve in the 0.5 − 5 keV energy band. (b) The radial velocity curve derived from the Gemini spectra (extracted using the GMOS IRAF package) with the best-fitting model shown as a solid line. The error bars 1σ (s.d.) statistical. The dashed line is the best-fitting sinusoid.

Credit:

International Gemini Observatory/NOIRLab/NSF/AURA

About the Image

Id:geminiann07018d
Type:Chart
Release date:Oct. 17, 2007, 7:56 p.m.
Related announcements:geminiann07018
Size:500 x 476 px

About the Object

Name:M33 X-7
Category:Illustrations

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