What is recorded here?
An X-ray observation identified coherent pulsations with a period near 237 milliseconds from the source associated with Geminga. A subsequent EGRET analysis found gamma-ray pulses at the same period, linking the earlier high-energy gamma-ray source to a pulsar. A later NASA account reproduces a pulse-phase profile from the gamma-ray observations and attributes the X-ray and gamma-ray measurements to different teams.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Halpern and Holt reported the soft X-ray pulsations; the gamma-ray timing analysis belongs to a different team. Geminga’s gamma-ray source had already been observed. The period derivative printed in the later NASA account is inconsistent with the original literature and is not used here. Pulsar properties depend on the timing interpretation.
Read the original work
- Gamma-Ray Astrophysics: New Insight into the Universe, Second Edition
- Discovery of soft X-ray pulsations from the γ-ray source Geminga
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
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People and systems
J. P. Halpern; S. S. Holt
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged. The recorded author list is incomplete.
Research locations and affiliations
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English catalogue narrative
X-ray and gamma-ray pulsations identify Geminga as a neutron-star pulsar
An X-ray observation identified coherent pulsations with a period near 237 milliseconds from the source associated with Geminga. A subsequent EGRET analysis found gamma-ray pulses at the same period, linking the earlier high-energy gamma-ray source to a pulsar. A later NASA account reproduces a pulse-phase profile from the gamma-ray observations and attributes the X-ray and gamma-ray measurements to different teams.
Scientific scope
Halpern and Holt reported the soft X-ray pulsations; the gamma-ray timing analysis belongs to a different team. Geminga’s gamma-ray source had already been observed. The period derivative printed in the later NASA account is inconsistent with the original literature and is not used here. Pulsar properties depend on the timing interpretation.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
J. P. Halpern; S. S. Holt
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.