English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report the detection of gamma-ray pulsations (> 0.1 GeV) from PSRJ2229+6114 and PSR J1048-5832, the latter having been detected as alow-significance pulsar by EGRET. Data in the gamma-ray band were acquired bythe Large Area Telescope aboard the Fermi Gamma-ray Space Telescope, while theradio rotational ephemerides used to fold the gamma-ray light curves wereobtained using the Green Bank Telescope, the Lovell telescope at Jodrell Bank,and the Parkes telescope. The two young radio pulsars, located within the errorcircles of the previously unidentified EGRET sources 3EG J1048-5840 and 3EGJ2227+6122, present spin-down characteristics similar to the Vela pulsar. PSRJ1048-5832 shows two sharp peaks at phases 0.15 \pm 0.01 and 0.57 \pm 0.01relative to the radio pulse confirming the EGRET light curve, while PSRJ2229+6114 presents a very broad peak at phase 0.49 \pm 0.01. The gamma-rayspectra above 0.1 GeV of both pulsars are fit with power laws havingexponential cutoffs near 3 GeV, leading to integral photon fluxes of (2.19 \pm0.22 \pm 0.32) x 10^{-7} cm^{-2} ^{-1} for PSR J1048-5832 and (3.77 \pm 0.22\pm 0.44) x 10^{-7} cm^{-2} s^{-1} for PSR J2229+6114. The first uncertainty isstatistical and the second is systematic. PSR J1048-5832 is one of two LATsources which were entangled together as 3EG J1048-5840. These detections addto the growing number of young gamma-ray pulsars that make up the dominantpopulation of GeV gamma-ray sources in the Galactic plane.

Fermi LAT detection of pulsed gamma-rays from the Vela-like pulsars PSR J1048-5832 and PSR J2229+6114