Results 91 to 100 of about 20,448 (244)

Pulse Profile Change Possibly Associated with a Glitch in an Anomalous X-Ray Pulsar 4U 0142+61

, 2004
We report a glitch-like pulse frequency deviation from the simple spin-down law in an anomalous X-ray pulsar (AXP) 4U 0142+61 detected by ASCA observations. We also found a significant pulse profile change after the putative glitch. The glitch parameters
Hellier C., Mikio Morii, Nobuyuki Kawai, Noriaki Shibazaki, van Paradijs J.   +4 more
core   +1 more source

Ephemeride der Pomona [PDF]

Astronomische Nachrichten
n ...
openaire   +3 more sources

Celestial ephemerides in an expanding universe [PDF]

Physical Review D, 2012
Post-Newtonian theory was instrumental in conducting the critical experimental tests of general relativity and in building the astronomical ephemerides of celestial bodies in the solar system with an unparalleled precision. The cornerstone of the theory is the postulate that the solar system is gravitationally isolated from the rest of the universe and
openaire   +2 more sources

Integrated software package STAMP for minor planets [PDF]

The integrated software package STAMP allowed for rapid and exact reproduction of the tables of the year-book 'Ephemerides of Minor Planets.' Additionally, STAMP solved the typical problems connected with the use of the year-book. STAMP is described. The
Kochetova, O. M., Shor, Viktor A.
core   +1 more source

The Fermi LAT detection of magnetar-like pulsar PSR J1846-0258 at high-energy gamma-rays

, 2017
We report the detection of the pulsed signal of the radio-quiet magnetar-like pulsar PSR J1846-0258 in the high-energy \gr-ray data of the Fermi Large Area Telescope (Fermi LAT).
Dekker, A., Hermsen, W., Kuiper, L.
core   +2 more sources

Application of "Galileo High Accuracy Service" on Single-Point Positioning. [PDF]

Sensors (Basel), 2023
Angrisano A, Ascione S, Cappello G, Gioia C, Gaglione S.   +4 more
europepmc   +1 more source

Estimations of changes of the Sun's mass and the gravitation constant from the modern observations of planets and spacecraft

, 2011
More than 635 000 positional observations (mostly radiotechnical) of planets and spacecraft (1961-2010), have been used for estimating possible changes of the gravitation constant, the solar mass, and semi-major axes of planets, as well as the value of ...
A.J. Hundhausen, A.J. Hundhausen, A.S. Brun, B.E. Gel’gaft, B.G. Marsden, B.G. Marsden, B.J. Gladman, C. Frohlich, C. Frohlich, E. V. Pitjeva, E.N. Polyakhova, E.V. Pitjeva, E.V. Pitjeva, E.V. Pitjeva, G.A. Krasinsky, G.G. Nyambuya, H. Jeans, H. Poincaré, International Astronomical Union, J.-Ph. Uzan, J.-Ph. Uzan, J.C. Brandt, J.G. Williams, J.K. Kevorkian, M.-B. Kallenrode, M.E. Bailey, N. P. Pitjev, P. Farinella, P.A.M. Dirac, T. Miura, W.C. Livingston, Z. Sekanina   +31 more
core   +1 more source

Global Dynamics and Ephemerides

, 2012
International ...
Hestroffer, Daniel, David, Pedro
openaire   +5 more sources

4 Ephemerides (Ephemerides) [PDF]

Transactions of the International Astronomical Union, 1991
This report covers the period from 1 July 1987 to 30 June 1990. The ephemerides that have been published during this period have made use of the system of astronomical constants adopted at the 16th General Assembly of the IAU in Grenoble. At the same time that the use of the FK5 system on the J2000 epoch is increasing and catalogues are becoming ...
openaire   +1 more source

Long-term Variations in the Orbital Period of Hot Jupiters from Transit-timing Analysis Using TESS Survey Data

The Astrophysical Journal Supplement Series
Many hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang, Zixin Zhang, Zhangliang Chen, Yonghao Wang, Cong Yu, Bo Ma   +5 more
doaj   +1 more source