Ministerio de Economía y Competitividad Gobierno de Canarias Universidad de La Laguna CSIC Centro de Excelencia Severo Ochoa

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Detection of companion stars of the pulsar X1822-371 and black hole candidate GX339-4

Author/s: Ref. 1 - Casares, J.; Steeghs, D.; Hynes, R. I.; Charles, P. A.; O'Brien, K. Ref. 2 - Hynes, R. I.; Steeghs, D.; Casares, J.; Charles, P. A.; O'Brien, K.

Reference: Ver Ref 1: X1822-3711 y Ref 2: GX339-4 / See Ref 1: X1822-3711 and Ref 2: GX339-4

Map of He and N velocities. Whilst nothing is revealed by He, it was analysis of N emissions that led to the detection of companion star X 1822-371.
Map of He and N velocities. Whilst nothing is revealed by He, it was analysis of N emissions that led to the detection of companion star X 1822-371.
Ref 1: X1822-3711 | Ref 2: GX339-4

Detecting companion stars in these systems has been impossible until now. Thanks to a new technique developed at the IAC, they can now be detected through fluorescent CII/NIII emissions produced by X ray irradiation.

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