Fermi-LAT Search for Pulsar Wind Nebulae around gamma-ray Pulsars
arXiv:1011.2076 · doi:10.1088/0004-637X/726/1/35
Abstract
The high sensitivity of the Fermi-LAT (Large Area Telescope) offers the first opportunity to study faint and extended GeV sources such as pulsar wind nebulae (PWNe). After one year of observation the LAT detected and identified three pulsar wind nebulae: the Crab Nebula, Vela-X and the PWN inside MSH 15-52. In the meantime, the list of LAT detected pulsars increased steadily. These pulsars are characterized by high energy loss rates from ~3 \times 10^{33} erg s to 5 \times 10 erg s and are therefore likely to power a PWN. This paper summarizes the search for PWNe in the off-pulse windows of 54 LAT-detected pulsars using 16 months of survey observations. Ten sources show significant emission, seven of these likely being of magnetospheric origin. The detection of significant emission in the off-pulse interval offers new constraints on the gamma-ray emitting regions in pulsar magnetospheres. The three other sources with significant emission are the Crab Nebula, Vela-X and a new pulsar wind nebula candidate associated with the LAT pulsar PSR J1023-5746, coincident with the TeV source HESS J1023-575. We further explore the association between the H.E.S.S. and the Fermi source by modeling its spectral energy distribution. Flux upper limits derived for the 44 remaining sources are used to provide new constraints on famous PWNe that have been detected at keV and/or TeV energies.
Accepted for publication in Astrophysical Journal, 42 pages, 17 figures
References in corpus (15)
- Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
- TeV Gamma-Ray Sources from a Survey of the Galactic Plane with Milagro
- Milagro Observations of Multi-TeV Emission from Galactic Sources in the Fermi Bright Source List
- A Dynamical Model for the Evolution of a Pulsar Wind Nebula inside a Non-Radiative Supernova Remnant
- Inverse Compton Emission from Galactic Supernova Remnants: Effect of the Interstellar Radiation Field
- Fermi LAT Observations of the Vela Pulsar
- Fitting Pulsar Wind Tori. II. Error Analysis and Applications
- Detection of extended very-high-energy gamma-ray emission towards the young stellar cluster Westerlund 2
- The Distances of SNRs Kes 69 and G21.5-0.9 from HI and 13CO Spectra
- The Expansion and Radio Spectral Index of G21.5-0.9: Is PSR J1833-1034 the Youngest Pulsar?
- The Infrared Detection of the Pulsar Wind Nebula in the Galactic Supernova Remnant 3C 58
- On the Distance and Molecular Environment of Westerlund 2 and HESS J1023-575
- New X-ray observations of the Geminga pulsar wind nebula
- Hard X-ray observations of PSR J1833-1034 and its associated pulsar wind nebula
- XMM-Newton observations of the first unidentified TeV gamma-ray source TeV J2032+4130
Cited by in corpus (8)
- Precise Gamma-Ray Timing and Radio Observations of 17 Fermi Gamma-Ray Pulsars
- Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
- NuSTAR study of Hard X-Ray Morphology and Spectroscopy of PWN G21.5-0.9
- PSR J1838-0537: Discovery of a young, energetic gamma-ray pulsar
- TeV Gamma-ray Astronomy: A Summary
- Fermi-LAT constraints on the Pulsar Wind Nebula nature of HESS J1857+026
- Sharper Fermi LAT Images: instrument response functions for an improved event selection
- Is there room for highly magnetized pulsar wind nebulae among those non-detected at TeV?