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

Aims. We aim here to contribute to the identification of unassociated brightsources of gamma-rays in the recently released catalogue obtained by the Fermicollaboration.  Methods. Our work is based on a extensive cross-identification of sourcesfrom different wavelength catalogues and databases.  Results. As a first result, we report the finding of a few counterpartcandidates inside the 95% confidence error box of the Fermi LAT unidentifiedgamma-ray source 0FGL J1848.6$-$0138. The globular cluster GLIMPSE-C01remarkably stands out among the most peculiar objects consistent with theposition uncertainty of the gamma-ray source and with a conceivable physicalscenario for gamma-ray production. The Fermi observed spectrum is comparedagainst theoretical predictions in the literature making the associationplausible but not yet certain due to its low X-ray to gamma-ray luminosityratio. Other competing counterparts are also discussed. In particular, we pay aspecial attention to a possible Pulsar Wind Nebula inside the Fermi error boxwhose nature is yet to be confirmed.  Conclusions.Both a globular cluster and an infrared source resembling aPulsar Wind Nebula have been found in positional agreement with 0FGLJ1848.6$-$0138. In addition, other interesting objects in the field are alsoreported. Future gamma-ray observations will narrow the position uncertaintyand we hope to eventually confirm one of the counterpart candidates reportedhere. If GLIMPSE-C01 is confirmed, together with the Fermi possible detectionof the well known globular cluster 47 Tuc, then it would provide strong supportto theoretical predictions of globular clusters as gamma-ray sources.

Counterpart candidates to the unidentified Fermi source 0FGL J1848.6-0138