... investigate on the relative inclination of the planets B and C orbiting the pulsar PSR B1257+12. First, we show that the third Kepler’s law does represent an adequate model for the orbital periods P of the planets, because other Newtonian and Einsteinian corrections are orders of magnitude smaller than the accuracy in measuring P B/C. Then, on the basis of available timing ...
Tópico(s): Astro and Planetary Science
2010 - Springer Nature | Journal of Astrophysics and Astronomy
... the hypothesis of a disk origin of the PSR B1257+12 planetary system. The system's long-term stability is guaranteed by the low, Earth-like masses of planets B and C.
Tópico(s): Astro and Planetary Science
2003 - IOP Publishing | The Astrophysical Journal
M. Konacki, Andrzej J. Maciejewski, Alex Wolszczan,
... semianalytical theory of perturbation between terrestrial-mass planets B and C is developed and applied to improve the multiorbit timing formula for this object. We use numerical simulations of the pulse arrival times for PSR B1257+12 to demonstrate that our new timing model can ...
Tópico(s): Stellar, planetary, and galactic studies
2000 - IOP Publishing | The Astrophysical Journal
A. Wolszczan, Ian M. Hoffman, M. Konacki, S. B. Anderson, K. M. Xilouris,
Multifrequency observations of the planet pulsar PSR B1257+12 have been made to examine a possibility that the 25.3 day periodicity observed in its pulse timing residuals represents a variable delay generated by solar rotation-induced density fluctuations in the solar wind. New timing measurements of the pulsar show that the amplitude of these residuals is frequency independent, implying that the periodicity cannot be caused by any arrival time delays related to the pulse propagation through an ...
Tópico(s): Advanced Frequency and Time Standards
2000 - IOP Publishing | The Astrophysical Journal
Carlos Leon de Jesus Borges, Marildo Geraldête Pereira,
... do primeiro exoplaneta em 1992 orbitando o pulsar PSR B1257+12 e a descoberta do exoplaneta 51 Pegasus b, em 1995 orbitando uma estrela do tipo solar, ...
Tópico(s): Optical and Acousto-Optic Technologies
2024 - UNIVERSIDADE ESTADUAL DE FEIRA DE SANTANA | Anais do ... Seminário de Iniciação Científica/Anais Seminário de Iniciação Científica
A. Lecavelier des Étangs, D. Minniti, Alan P. Boss, M. Mayor, Peter Bodenheimer, A. Collier Cameron, Ray Jayawardhana, Eiichiro Kokubo, Rosemary A. Mardling, D. Queloz, H. Rauer, Gang Zhao,
... after the discovery of planets around the pulsar PSR B1257+12 and 4 years after the discovery of 51 Peg b. This working group was renewed for 3 years ...
Tópico(s): Geophysics and Gravity Measurements
2015 - Cambridge University Press | Proceedings of the International Astronomical Union
M. Bailes, S. Johnston, J. F. Bell, D. R. Lorimer, B. W. Stappers, R. N. Manchester, A. G. Lyne, L. Nicastro, N. D’Amico, B. M. Gaensler,
... a planetary system such as that observed around PSR B1257+12, indicating that planetary formation around millisecond pulsars ...
Tópico(s): Gamma-ray bursts and supernovae
1997 - IOP Publishing | The Astrophysical Journal
J. C. B. Papaloizou, E. Szuszkiewicz,
... the several Earth mass range (planets around pulsar PSR B1257+12) the two largest planets are intriguingly close ...
Tópico(s): Astro and Planetary Science
2005 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
I. C. Niţu, M. J. Keith, B. W. Stappers, A. G. Lyne, M. B. Mickaliger,
... planets as large as those known to orbit PSR B1257$+$12 ($\sim4\,\mathrm{M}_{\oplus}$); however, the smaller ...
Tópico(s): Geophysics and Gravity Measurements
2022 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
M. Konacki, Andrzej J. Maciejewski, Alex Wolszczan,
A planetary system around the pulsar B1257+12 has three planets A, B and C with the orbital periods of 25, 66 and 98 days, respectively (Wolszczan 1994). Dynamical properties of the system have been thoroughly studied by Rasio et al . (1993) and Malhotra (1993). They demonstrated that the gravitational interactions between planets B and C are significant enough to be detected. In such case, the motion of the system is no longer Keplerian and it is necessary to use a more precise description of motion ...
Tópico(s): Pulsars and Gravitational Waves Research
2000 - Cambridge University Press | International Astronomical Union Colloquium
... reported in 1992) was orbiting the millisecond pulsar PSR B1257+12. It revealed that the massive emission of ...
Tópico(s): Astronomical and nuclear sciences
2012 - Wiley | Meteoritics and Planetary Science