Results 81 to 90 of about 43,513 (282)
Binary system delays and timing noise in searches for gravitational waves from known pulsars [PDF]
, 2007 The majority of fast millisecond pulsars are in binary systems, so that any periodic signal they emit is modulated by both Doppler and relativistic effects.
Pitkin, Matthew, Woan, Graham
core +3 more sources
AKR Observations From All Local Times Indicate Substorm Activity
Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.Abstract Auroral Kilometric Radiation (AKR) is known to present emission at lower frequencies near substorm onset, corresponding to activation of higher altitude sources along auroral magnetic field lines and acting as a proxy of the vertical distribution of acceleration processes during these events.
J. E. Waters +6 more
wiley +1 more source
A tale of two periods: determination of the orbital ephemeris of the super-Eddington pulsar NGC 7793 P13 [PDF]
Astronomy & Astrophysics, 2018 We present a timing analysis of multiple XMM-Newton and NuSTAR observations of the ultra-luminous pulsar NGC 7793 P13 spread over its 65 d variability period.
F. Fuerst +19 more
semanticscholar +1 more source
Timing accuracy of the Swift X-Ray Telescope in WT mode
, 2012 The X-Ray Telescope (XRT) on board Swift was mainly designed to provide detailed position, timing and spectroscopic information on Gamma-Ray Burst (GRB) afterglows.
Beardmore, A. P. +10 more
core +1 more source
New radio observations of Circinus X-1 [PDF]
, 1997 New radio observations of the radio-jet X-ray binary Circinus X-1 over nearly an entire 16.6-day orbit are presented. The source continues to undergo radio flaring in the phase interval 0.0 - 0.2 and appears to be brightening since observations in the ...
Fender, R. P.
core +2 more sources
ENTANGLING KNOWLEDGE AND IGNORANCE
History and Theory, Volume 64, Issue 3, Page 483-493, September 2025.ABSTRACT This review essays situates Alain Corbin's Terra Incognita: A History of Ignorance in the Eighteenth and Nineteenth Centuries within current discussions of knowledge and ignorance related to intellectual history, the history of science, and the history of knowledge.
Vera Keller
wiley +1 more source
The Selection of Ground Stations for IGS Products [PDF]
Journal of Astronomy and Space Sciences, 2007 The selection of ground stations is one of the essential process of IGS (International GNSS Service) products. High quality GPS data should be collected from the globally distributed ground stations.
Sung-Wook Jung +5 more
doaj +1 more source
Tracking the Orbital and Super-orbital Periods of SMC X-1
, 2007 The High Mass X-ray Binary (HMXB) SMC X-1 demonstrates an orbital variation of 3.89 days and a super-orbital variation with an average length of 55 days.
Jorn Wilms +8 more
core +1 more source
INPOP06: a new planetary ephemeris [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe present INPOP06: a new planetary ephemeris.
Fienga, A. +3 more
openaire +4 more sources
Rising‐Tone Whistler Wave in a Magnetosheath Side Separatrix of Dayside Magnetic Reconnection
Geophysical Research Letters, Volume 52, Issue 16, 28 August 2025.Abstract We investigate Magnetospheric Multiscale (MMS) observation of the rising‐tone whistler waves during the magnetopause asymmetric magnetic reconnection on 24 December 2016. The rising‐tone whistler wave propagates toward the electron diffusion region of magnetic reconnection along the magnetic field on the magnetosheath side of the separatrix ...
Kyunghwan Dokgo +7 more
wiley +1 more source