Pith. sign in

REVIEW 1 cited by

The Structure of the Relativistic Fe Line in GX 340+0 as Viewed with XRISM/Resolve, NICER, and NuSTAR

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 2507.06289 v1 pith:DV6PSEUC submitted 2025-07-08 astro-ph.HE

The Structure of the Relativistic Fe Line in GX 340+0 as Viewed with XRISM/Resolve, NICER, and NuSTAR

R. M. Ludlam , R. Ballhausen , P. Chakraborty , E. Costantini , L. Corrales , H. Hall , C. Kilbourne , D. L. Moutard
show 8 more authors
T. Nakagawa F. S. Porter I. Psaradaki M. Sudha R. K. Smith H. Takahashi C. Done J. A. Garc\'ia
This is my paper
classification astro-ph.HE
keywords modelfeatureslineresolvesourcexrismbranchemission
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We present a 152 ks XRISM/Resolve observation of the persistently accreting Z source GX 340+0. Simultaneous observations also occurred with NuSTAR and NICER for 22.47 ks and 2.7 ks, respectively. The source covered the normal branch to the flaring branching during the observations. The data from all three missions were modeled concurrently for each spectral branch. The superior energy resolution of XRISM/Resolve reveals structure within the iron emission line complex regardless of spectral state. We model the reprocessed Fe K line with a reflection model tailored for thermal illumination of the accretion disk by a neutron star. The currently available model encompasses the broad components, but narrow emission features remain at the ~5% level. These remaining features may be described by the presence of an ionized plasma in the system as has been observed in the Z source Cygnus X-2, but subsequent updates to the reflection model code may be able to explain these features.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

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

  1. Peering through the dip: IXPE unveils the extended scattering environment of GX 13+1

    astro-ph.HE 2026-07 conditional novelty 6.0

    During the periodic dip of GX 13+1, X-ray polarization rises to 9.1%±1.1% and rotates by ~60° relative to the off-dip state, consistent with scattering in an oblate corona or disk wind.