Time Averaged Pulse Phase Resolved Spectra of the Vela Pulsar Measured by Comptel at MeV Energies

1998 ◽  
pp. 211-219 ◽  
Author(s):  
L. Kuiper ◽  
W. Hermsen ◽  
V. Schönfelder ◽  
K. Bennett ◽  
A. Connors
Keyword(s):  
Pulse Phase ◽  
Vela Pulsar

CONSTRUCTION PRINCIPLES OF TECHNICALLY INVARIANT QUARTZ GENERATORS BASED ON THE DOUBLE-LOOP PULSE PHASE LOCKING SYSTEMS

2019 ◽  
Vol 78 (13) ◽  
pp. 1167-1177
Author(s):  
S. K. Pidchenko ◽  
A. A. Taranchuk ◽  
A. Totsky ◽  
V. B. Sharonov
Keyword(s):  
Phase Locking ◽  
Double Loop ◽  
Pulse Phase

The Power Performance Characteristics of an Electric Resistance Furnace Equipped with Pulse-Phase Voltage Control

Vestnik MEI ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 83-89
Author(s):  
Viktor P. Rubtsov ◽  
◽  
Roman R. Klyushin ◽  
Nikolay I. Kryukov ◽  
◽  
...  
Keyword(s):  
Voltage Control ◽  
Performance Characteristics ◽  
Electric Resistance ◽  
Phase Voltage ◽  
Resistance Furnace ◽  
Power Performance ◽  
Electric Resistance Furnace ◽  
Pulse Phase

scholarly journals A NuSTAR confirmation of the 36 ks hard X-ray pulse-phase modulation in the magnetar 1E 1547.0 − 5408

2021 ◽  
Vol 502 (2) ◽  
pp. 2266-2284
Author(s):  
Kazuo Makishima ◽  
Teruaki Enoto ◽  
Hiroki Yoneda ◽  
Hirokazu Odaka
Keyword(s):  
Time Lapse ◽  
Phase Behaviour ◽  
Modulation Amplitude ◽  
Axial Deformation ◽  
Physical Processes ◽  
Arrival Times ◽  
Pulse Phase ◽  
Phase Variations ◽  
Complex Phenomena ◽  
Made In

ABSTRACT This paper describes an analysis of the NuSTAR data of the fastest-rotating magnetar 1E 1547 − 5408, acquired in 2016 April for a time lapse of 151 ks. The source was detected with a 1–60 keV flux of 1.7 × 10−11 erg s−1 cm−2, and its pulsation at a period of 2.086710(5) s. In 8–25 keV, the pulses were phase-modulated with a period of T = 36.0 ± 2.3 ks, and an amplitude of ∼0.2 s. This reconfirms the Suzaku discovery of the same effect at $T=36.0 ^{+4.5}_{-2.5}$ ks, made in the 2009 outburst. These results strengthen the view derived from the Suzaku data, that this magnetar performs free precession as a result of its axial deformation by ∼0.6 × 10−4, possibly caused by internal toroidal magneti fields (MFs) reaching ∼1016 G. Like in the Suzaku case, the modulation was not detected in energies below ∼8 keV. Above 10 keV, the pulse-phase behaviour, including the 36 ks modulation parameters, exhibited complex energy dependencies: at ∼22 keV, the modulation amplitude increased to ∼0.5 s, and the modulation phase changed by ∼65° over 10–27 keV, followed by a phase reversal. Although the pulse significance and pulsed fraction were originally very low in >10 keV, they both increased noticeably, when the arrival times of individual photons were corrected for these systematic pulse-phase variations. Possible origins of these complex phenomena are discussed, in terms of several physical processes that are specific to ultrastrong MFs.

Angular velocity glitches of the Vela pulsar in a model with “centrifugal buoyancy” of vortices

Astrophysics ◽  
2007 ◽  
Vol 50 (2) ◽  
pp. 144-156 ◽  
Author(s):  
D. M. Sedrakian ◽  
M. V. Hayrapetyan ◽  
L. R. Sedrakian
Keyword(s):  
Angular Velocity ◽  
Vela Pulsar

Nucleosynthesis of fluorine in low-mass AGB stars during the thermal pulse phase

1996 ◽  
Vol 20 (2) ◽  
pp. 231-238
Author(s):  
Yong-xing Liu ◽  
Bo Zhang ◽  
Qiu-he Peng
Keyword(s):  
Agb Stars ◽  
Thermal Pulse ◽  
Pulse Phase ◽  
Low Mass

The effect of pulse phase errors on the chirp scaling SAR processing algorithm

1996 ◽  
Vol 34 (2) ◽  
pp. 471-478 ◽  
Author(s):  
G.W. Davidson ◽  
F. Wong ◽  
I. Cumming
Keyword(s):  
Processing Algorithm ◽  
Phase Errors ◽  
Pulse Phase ◽  
Sar Processing

Wide band pulse phase resolved spectroscopy with BeppoSax

1999 ◽  
Vol 69 (1-3) ◽  
pp. 151-157 ◽  
Author(s):  
A. Santangelo ◽  
S. Del Sordo ◽  
S. Piraino ◽  
A. Segreto ◽  
G. Cusumano ◽  
...  
Keyword(s):  
Wide Band ◽  
Pulse Phase

Kalman filter based demodulation in a dual-pulse phase-OTDR

Laser Physics ◽  
2021 ◽  
Vol 31 (3) ◽  
pp. 035101
Author(s):  
A E Alekseev ◽  
B G Gorshkov ◽  
A V Bashaev ◽  
V T Potapov ◽  
M A Taranov ◽  
...  
Keyword(s):  
Kalman Filter ◽  
Pulse Phase
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