Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars

Details Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars

2010-11-10

arxiv.org/abs/1011.2468v2

ApJS 194, 17 (2011)

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

59 pages, 57 figures, accepted by ApJS

Scientific paper

10.1088/0067-0049/194/2/17

We present precise phase-connected pulse timing solutions for 16 gamma-ray-selected pulsars recently discovered using the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope plus one very faint radio pulsar (PSR J1124-5916) that is more effectively timed with the LAT. We describe the analysis techniques including a maximum likelihood method for determining pulse times of arrival from unbinned photon data. A major result of this work is improved position determinations, which are crucial for multi-wavelength follow up. For most of the pulsars, we overlay the timing localizations on X-ray images from Swift and describe the status of X-ray counterpart associations. We report glitches measured in PSRs J0007+7303, J1124-5916, and J1813-1246. We analyze a new 20 ks Chandra ACIS observation of PSR J0633+0632 that reveals an arcminute-scale X-ray nebula extending to the south of the pulsar. We were also able to precisely localize the X-ray point source counterpart to the pulsar and find a spectrum that can be described by an absorbed blackbody or neutron star atmosphere with a hard powerlaw component. Another Chandra ACIS image of PSR J1732-3131 reveals a faint X-ray point source at a location consistent with the timing position of the pulsar. Finally, we present a compilation of new and archival searches for radio pulsations from each of the gamma-ray-selected pulsars as well as a new Parkes radio observation of PSR J1124-5916 to establish the gamma-ray to radio phase offset.

Affiliated with

Also associated with

No associations

Rating

Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-614302