Optical Pulsations in the Crab Nebula Pulsar

  title={Optical Pulsations in the Crab Nebula Pulsar},
  author={R. E. Nather and Brain Warner and Messrs Macfarlane},
The discovery of strong light flashes from pulsar NP 0532 is confirmed in this paper from McDonald Observatory. 

Further Observations of the Crab Nebula Optical Pulsar

Further optical studies of the Crab Nebula pulsar have revealed the unusual shape of the light curve as a function of colour and polarization.

X-ray Pulsar in the Crab Nebula

X-ray pulsations have been observed in the Crab Nebula at a frequency closely matching the radio and optical pulsations. About 5 percent of the total x-ray power of the nebula appears in the pulsed

Optical Polarization Measurements of Pulsar NP 0532

The linear polarization is of the order of 15 per cent and is variable, and the circular polarization is less than 5 percent.

Search for Optical Pulsations from the Vela Pulsar

THE detection1,2 of optical pulsations from the pulsar NP 0532 in the Crab Nebula naturally stimulates a search for optical radiation from other radio pulsars. Of the known pulsars, the southern

Optical Candidate for Pulsar PSR 0833–45

Two of the most singular characteristics of the pulsar NP 0532 are its short period (33 ms) and its association with a supernova remnant. This suggests that the next most promising candidate for

The Period of Pulsar NP 0532

THE recent discovery by Cocke, Disney and Taylor1,2 of pulsed optical signals from the pulsar NP 0532, with subsequent confirmation3, has opened the way to extensive new studies of this object. In

Search for Nanosecond Optical Pulses from Crab Pulsar NP 0532

IN a recent IAU circular telegram, Porter, Jennings and O'Mongain reported observations at Malta on January 19, 1969, of 3 nanosecond optical pulses coming from the vicinity of the Crab Nebula and

Active Galactic Nuclei and Pulsars

With the discovery of radio emission of extraterrestrial origin, it had opened a new and broader window in the electromagnetic spectrum to observe the sky. Two of the common sources of radio

Optical Studies of Pulsar NP 0532

The period of optical pulsations from NP 0532 has been determined to within 3 nanoseconds on three different nights and the pulse shape was highly asymmetrical with strong indications of structure.

Television Detection of the Crab Nebula Pulsar

Cocke, Disney and Taylor1 recently reported the discovery of strong optical pulses occurring in the Crab Nebula with a period in good agreement with that found for the pulsating radio source NP 0532.



Motions and Structure of the Filamentary Envelope of the Crab Nebula

Proper motions have been measured for 132 line-emitting filaments in the Crab Nebula on direct plates taken with the 100 and 200-inch telescopes. These motions, if assumed constant and extrapolated


Abstract : Radio positions of the three sources were deter mined with the two 90-ft antennas working as an interferometer with an rms accuracy in both coordinates better than 10 sec of arc. Direct