What is recorded here?
Arecibo timing of pulses from the millisecond pulsar PSR B1257+12 revealed periodic deviations consistent with two planetary companions, reported by Wolszczan and Frail in 1992. A later participant report describes an additional lower-amplitude periodicity and a fit to the predicted mutual perturbations of the two larger planets, strengthening the planetary interpretation. A 2003 timing analysis by Konacki and Wolszczan used a longer data span and an interaction model to infer the masses and inclinations of the two larger planets.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
Wolszczan and Frail reported the 1992 timing result; Konacki and Wolszczan’s later mass and inclination analysis is a separate contribution using an extended, overlapping observation series. Planet masses depend on pulsar-mass and orbital-model assumptions. Later signals and perturbation analyses should not be backdated to the first report; an orbital interpretation does not directly observe how the planets formed. The contributor list shown is for the 1992 discovery paper; later analyses have their own authors.
Read the original work
- Planets Around Pulsars
- Masses and orbital inclinations of planets in the PSR B1257+12 system
- A planetary system around the millisecond pulsar PSR1257 + 12
- Masses and orbital inclinations of planets in the PSR B1257+12 system
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
A. Wolszczan; D. A. Frail
Authors of the 1992 discovery paper; later follow-up papers have separate authors. Paper authorship does not quantify individual effort.
Research locations and affiliations
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English catalogue narrative
Pulsar timing reveals a planetary system around PSR B1257+12
Arecibo timing of pulses from the millisecond pulsar PSR B1257+12 revealed periodic deviations consistent with two planetary companions, reported by Wolszczan and Frail in 1992. A later participant report describes an additional lower-amplitude periodicity and a fit to the predicted mutual perturbations of the two larger planets, strengthening the planetary interpretation. A 2003 timing analysis by Konacki and Wolszczan used a longer data span and an interaction model to infer the masses and inclinations of the two larger planets.
Scientific scope
Wolszczan and Frail reported the 1992 timing result; Konacki and Wolszczan’s later mass and inclination analysis is a separate contribution using an extended, overlapping observation series. Planet masses depend on pulsar-mass and orbital-model assumptions. Later signals and perturbation analyses should not be backdated to the first report; an orbital interpretation does not directly observe how the planets formed. The contributor list shown is for the 1992 discovery paper; later analyses have their own authors.
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
A. Wolszczan; D. A. Frail
Authors of the 1992 discovery paper; later follow-up papers have separate authors. Paper authorship does not quantify individual effort.