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The velocity curve of star from GRS 1915+105 binary system
The image displays the velocity of the donor star, as determined from the Doppler shifts of the carbon monoxide lines (ESO Press Photo eso0135). It shows velocities from sixteen observations taken with VLT ANTU/ISAAC between April and September 2000. A periodogram analysis (upper panel) determines the period as 33.5 days and an orbit with this period represents the best fit to the data (lower panel). The orbital velocity of the binary star moving around the black hole is about 140 km/s.
Crédit:ESO
À propos de l'image
Identification: | eso0135c |
Type: | Graphique |
Date de publication: | 28 novembre 2001 |
Communiqués de presse en rapport: | eso0135 |
Taille: | 751 x 604 px |
À propos de l'objet
Nom: | GRS 1915+105 |
Type: | Milky Way : Star : Type : Exotic : X-Ray Binary |
Distance: | 40000 années lumière |
Catégorie: | Stars |
Couleurs & filtres
Domaine | Télescope |
---|---|
Infrarouge | Very Large Telescope ISAAC |