High Time Resolution Infrared Observations of the Crab Nebula Pulsar and the Pulsar Emission Mechanism

1997 ◽  
Vol 477 (1) ◽  
pp. 465-474 ◽  
Author(s):  
S. S. Eikenberry ◽  
G. G. Fazio ◽  
S. M. Ransom ◽  
J. Middleditch ◽  
J. Kristian ◽  
...  
Keyword(s):  
Time Resolution ◽  
Crab Nebula ◽  
High Time ◽  
High Time Resolution ◽  
Emission Mechanism ◽  
Pulsar Emission ◽  
Infrared Observations ◽  
The Crab Nebula

High time resolution infrared observations of the Crab Nebula pulsar

1994 ◽  
Vol 431 ◽  
pp. L43 ◽  
Author(s):  
S. M. Ransom ◽  
G. G. Fazio ◽  
S. S. Eikenberry ◽  
J. Middleditch ◽  
J. Kristian ◽  
...  
Keyword(s):  
Time Resolution ◽  
Crab Nebula ◽  
High Time ◽  
High Time Resolution ◽  
Infrared Observations ◽  
The Crab Nebula

scholarly journals Aqueye and Iqueye, Very-High-Time-Resolution Photon-Counting Photometers

2011 ◽  
Vol 7 (S285) ◽  
pp. 280-282
Author(s):  
Cesare Barbieri ◽  
Giampiero Naletto ◽  
Luca Zampieri ◽  
Enrico Verroi ◽  
Serena Gradari ◽  
...  
Keyword(s):  
Time Resolution ◽  
Arrival Time ◽  
Dynamic Range ◽  
Crab Nebula ◽  
Photon Counting ◽  
High Time ◽  
High Time Resolution ◽  
Definition Of ◽  
The Crab Nebula ◽  
Very High

AbstractWe describe very high-time-resolution photometers capable of tagging the arrival time of each photon with a resolution and accuracy of few hundred picoseconds, for hours of continuous acquisition, and with a dynamic range of more than 6 orders of magnitude. The final goal is the conceptual definition of a “quantum” photometer for the E-ELT, capable of detecting and measuring second-order correlation effects in photon streams from celestial sources. Two prototype units have been built and operated, one for the Asiago 1.8-m telescope (AquEYE) and one for the 3.5-m NTT (IquEYE).Here we will present results obtained by IquEYE on the Crab Nebula pulsar in simultaneous radio observations with Jodrell Bank in December 2009.

scholarly journals Crab Pulsar: Enhanced Optical Emission During Giant Radio Pulses

2011 ◽  
Vol 7 (S285) ◽  
pp. 296-298
Author(s):  
Susan Collins ◽  
Andy Shearer ◽  
Ben Stappers ◽  
Cesare Barbieri ◽  
Giampiero Naletto ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Time Resolution ◽  
Optical Emission ◽  
High Time ◽  
High Time Resolution ◽  
Crab Pulsar ◽  
Comprehensive Model ◽  
Optical Pulses ◽  
Pulsar Emission ◽  
Optical Wavelengths

AbstractAlthough optical pulsar studies have been limited to a few favoured objects, the observation of pulsars at optical wavelengths provides an opportunity to derive a number of important pulsar characteristics, including the energy spectrum of the emitting electrons and the geometry of the emission zone. These parameters will be vital for a comprehensive model of pulsar emission mechanisms. Observations of the Crab pulsar with the high-time-resolution photon-tagging photometer IquEYE show an optical–radio delay of ~178 μs. Incorporating simultaneous Jodrell Bank radio observations suggested a correlation between giant radio pulses and enhanced optical pulses for this pulsar, thus offering possible evidence for the reprocessing of radio photons.

scholarly journals Coherent Dedispersion: History and Results

2017 ◽  
Vol 13 (S337) ◽  
pp. 29-32
Author(s):  
Timothy H. Hankins
Keyword(s):  
Radio Emission ◽  
Real Time ◽  
Time Resolution ◽  
High Time ◽  
High Time Resolution ◽  
Emission Mechanism ◽  
Real Time Processing ◽  
Time Processing ◽  
Pulsar Timing

AbstractThe high time resolution afforded by coherent dedispersion has enabled precision pulsar timing, detailed studies of pulsar morphology, and has led to conclusions about the radio emission mechanism. The advance of technology in the last 50 years has enhanced the capability of coherent dedispersion, now used for most pulsar observing, by nearly six orders of magnitude. Although coherent dedispersion is now done mostly in software, in “earlier days” several novel hardware devices for real-time processing were developed.

scholarly journals Verifying the low frequency pulsar polarimetry of the MWA

2017 ◽  
Vol 13 (S337) ◽  
pp. 416-417
Author(s):  
Steven E. Tremblay ◽  
Mengyao Xue ◽  
N. D. Ramesh Bhat ◽  
Caterina Tiburzi
Keyword(s):  
Time Resolution ◽  
Low Frequency ◽  
High Time ◽  
High Time Resolution ◽  
Geometric Information ◽  
Pulsar Emission ◽  
Rich History ◽  
Linear Polarisation ◽  
Resolution Data

AbstractStudying the polarised properties of pulsars has a rich history giving unique geometric information about pulsars as well as testing the theories of pulsar emission physics. Performing such studies with the MWA has the attraction that the percentage of linear polarisation of many pulsars increases as the observing frequency decreases. Here we discuss the strategies being employed to verify the polarimetric response of the MWA’s high time resolution data.

Solar Corona Investigation by the Coronal Line Photometer at Lomnický Peak

1994 ◽  
Vol 144 ◽  
pp. 431-434
Author(s):  
M. Minarovjech ◽  
M. Rybanský
Keyword(s):  
Solar Corona ◽  
Time Resolution ◽  
Active Regions ◽  
High Time ◽  
High Time Resolution ◽  
List Type ◽  
Type Number ◽  
Coronal Line ◽  
Global Cycle

AbstractThis paper deals with a possibility to use the ground-based method of observation in order to solve basic problems connected with the solar corona research. Namely:1.heating of the solar corona2.course of the global cycle in the corona3.rotation of the solar corona and development of active regions.There is stressed a possibility of high-time resolution of the coronal line photometer at Lomnický Peak coronal station, and use of the latter to obtain crucial observations.

Discovery of the fast optical variability of GRB 080319B and the prospects for wide-field optical monitoring with high time resolution

2010 ◽  
Vol 180 (4) ◽  
pp. 424 ◽  
Author(s):  
G.M. Beskin ◽  
S.V. Karpov ◽  
S.F. Bondar ◽  
V.L. Plokhotnichenko ◽  
A. Guarnieri ◽  
...  
Keyword(s):  
Time Resolution ◽  
High Time ◽  
High Time Resolution ◽  
Optical Variability ◽  
Wide Field ◽  
Optical Monitoring
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