Pith. sign in

REVIEW 1 cited by

Evidence of the gamma-ray counterpart from nova FM Cir with Fermi-LAT

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2404.08409 v2 pith:X33PNUY5 submitted 2024-04-12 astro-ph.HE

H.H. Wang , H.D. Yan , L.C.-C. Lin , J. Takata , P.-H. T. Tam This is my paper · ORCID
classification astro-ph.HE
keywords gamma-rayemissiondaysfermi-latlevellongernovax-ray
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We report the analysis results of X-ray and gamma-ray data of the nova FM Cir taken by Swift and Fermi-LAT. The gamma-ray emission from FM Cir can be identified with a significance level of 3sigma within 40 days after the nova eruption (2018 January 19) while we bin the light curve per day. The significance can further exceed 4 sigma confidence level if we accumulate longer time (i.e., 20 days) to bin the light curve. The gamma-ray counterpart could be identified with a Test Statistic (TS) above 4 until 180 days after the eruption. The duration of the gamma-ray detection was longer than those reported in the previous studies of the other novae detected in the GeV range. The significant X-ray emission was observed after the gamma-ray flux level fell below the sensitivity of Fermi-LAT. The hardness ratio of the X-ray emission decreased rapidly with time, and the spectra were dominated by blackbody radiation from the hot white dwarf. Except for the longer duration of the gamma-ray emission, the multi-wavelength properties of FM Cir closely resemble those of other novae detected in the GeV range.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. An Optically Motivated Gamma-ray Study of Fermi-LAT Novae

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    For 26 Fermi-LAT novae, the optical three-magnitude decay time is the most common time window that maximizes gamma-ray detection significance.

Pith tools