Paper Citation Record · LEDGER

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2

As of 12 August 2026, this Paper Citation Record lists 40 of 40 outbound references and 0 inbound Pith citation observations for arXiv:2606.04734.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
2606.04734 v1

Coverage vector

measured 40 of 40 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-06-28T05:31:35.240563Z

measured 40 of 40 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-11T06:34:44.6726+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

Reference resolution

40 of 40 outbound references displayed

verified exact2
verified fuzzy0
unresolved37
parse uncertain0
malformed identifier1
metadata mismatch0

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation b32bf40b-28e0-44a7-8727-e06c5f96478c · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 1

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 18fbe48d-7fe6-426f-8efe-0d4ce331d7df · outbound

This paper cites A., Walton, D.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Walton, D

Reference 2

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation b38f9969-c20f-4fc9-9643-f113a9b85909 · outbound

This paper cites A., Klochkov, D., Schönherr, G., et al.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Klochkov, D., Schönherr, G., et al

Reference 3

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation ab97c312-fb8c-4dd4-9051-cc3512783182 · outbound

This paper cites A., Fürst, F., et al.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Fürst, F., et al

Reference 4

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 9a67468c-f31d-48df-865a-7e4b13892823 · outbound

This paper cites & Wilms, J.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 & Wilms, J

Reference 5

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 6fa3ebd1-13b7-4c30-8bf0-5ad4ec141bd1 · outbound

This paper cites 2018, MNRAS, 476, L45.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2018, MNRAS, 476, L45

Reference 6

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation d49b3587-cc90-40dd-b45d-1740aa998fdf · outbound

This paper cites A., Rothschild, R.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Rothschild, R

Reference 7

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f76dd13c-e448-4981-ae58-1b9354c17df7 · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 8

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation e07d4d01-1796-4ab1-9f4a-340fcb7262cd · outbound

This paper cites A., Fogantini, F.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Fogantini, F

Reference 9

Resolution: verified exact; arxiv_id, observed 2026-07-02T09:26:51.123258Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation bb64e7ee-1042-4279-8eb7-e4476903cd30 · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 10

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation fc6114d8-6cba-4d5e-9d9d-5199d26b9c5e · outbound

This paper cites 2025, ApJ, 994, L38.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2025, ApJ, 994, L38

Reference 11

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation d2ee3417-ab7d-4d22-b509-2bf32675c1d2 · outbound

This paper cites H., Türko ˘glu, M.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 H., Türko ˘glu, M

Reference 12

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 698dbceb-d259-4470-b6b2-e82a2766443b · outbound

This paper cites N., Atapin, K.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 N., Atapin, K

Reference 13

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation bda2d5a3-b486-4101-bf2b-f161330d0e34 · outbound

This paper cites C., Allen, G.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 C., Allen, G

Reference 14

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 549e5f1f-89e5-4f79-9a7c-1977677ca16c · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 15

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 2e4215d8-a5db-4631-8e70-b124af7c6a52 · outbound

This paper cites L., Belﬁore, A., Stella, L., et al.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 L., Belﬁore, A., Stella, L., et al

Reference 16

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 3d4f912c-d32e-425f-9c6a-3982d076d7e1 · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 17

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 441cf712-490f-41fa-996d-61ecdef9278f · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 18

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 0822806a-d568-4eb1-9d31-77ca4795576a · outbound

This paper cites 2023, New A Rev., 96, 101672.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2023, New A Rev., 96, 101672

Reference 19

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 35046e2b-0f30-4923-aee0-87f30f8cc95f · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 20

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 5c04b2ba-0f39-43ae-9195-9f0f3ba8029b · outbound

This paper cites S., et al.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 S., et al

Reference 21

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 7e0011f9-e907-463b-a8f9-4c0ae1a47695 · outbound

This paper cites J., et al.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 J., et al

Reference 22

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 49b76e54-30d0-40b6-a61f-904fc275b794 · outbound

This paper cites & Bregman, J.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 & Bregman, J

Reference 23

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 25403f19-74b6-4c02-bfab-1021453072e2 · outbound

This paper cites & Paul, B.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 & Paul, B

Reference 24

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation b014965b-84a2-4ba0-975d-584b94479a0e · outbound

This paper cites 2012, MNRAS, 420, 2307.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2012, MNRAS, 420, 2307

Reference 25

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation f74e1298-bd71-4b87-8899-555531c8aba9 · outbound

This paper cites 1992, High-energy radiation from magnetized neutron stars.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 1992, High-energy radiation from magnetized neutron stars

Reference 26

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 215b5585-780d-476a-89dc-abef9230d6f0 · outbound

This paper cites W., Soria, R., Grisé, F., & Pietrzy ´nski, G.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 W., Soria, R., Grisé, F., & Pietrzy ´nski, G

Reference 27

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation b0af3051-507c-4b6f-97e6-47b55592c5b2 · outbound

This paper cites A., Suleimanov, V.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Suleimanov, V

Reference 28

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 26b51329-906f-4250-b464-9b92eab57b9d · outbound

This paper cites J., & Fabian, A.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 J., & Fabian, A

Reference 29

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 8a4959c4-dbb8-486d-abd1-25f302278343 · outbound

This paper cites Ultra-luminous X-ray sources: extreme accretion and feedback.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Ultra-luminous X-ray sources: extreme accretion and feedback

Reference 30

Resolution: verified exact; arxiv_id, observed 2026-07-02T09:26:51.125948Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation c6a00597-d9ba-448a-bfbc-c4c732f7f9fe · outbound

This paper cites P ., Schulz, N.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 P ., Schulz, N

Reference 31

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation ba8a9cd8-8f16-4e5a-9213-e8d9ef1e2fac · outbound

This paper cites an unresolved cited work.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 Unresolved cited work

Reference 32

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 9cdf5935-6550-4607-926c-e9c15c2af4dc · outbound

This paper cites G., & Abolmasov, P.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 G., & Abolmasov, P

Reference 33

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 399e83db-b88d-4f3f-a144-7790e500d336 · outbound

This paper cites 2017, A&A, 601, A99.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2017, A&A, 601, A99

Reference 34

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 4678e881-6ea4-46e6-95e1-3ca44a54ade1 · outbound

This paper cites 2019, A&A, 622, A61.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2019, A&A, 622, A61

Reference 35

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 35e2d3de-fbd0-4e1f-a589-ba70808e1078 · outbound

This paper cites X., Bauer, F.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 X., Bauer, F

Reference 36

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 071f69de-926e-435d-936b-c6ea41daa1a2 · outbound

This paper cites 2013, Nature, 500, 312.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 2013, Nature, 500, 312

Reference 37

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation df42001b-a975-41b5-bbd1-cafd4aa205d6 · outbound

This paper cites 1978, ApJ, 219, L105.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 1978, ApJ, 219, L105

Reference 38

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 95f8c028-2e52-410f-84cf-189f71185c62 · outbound

This paper cites B., Courtois, H.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 B., Courtois, H

Reference 39

Resolution: unresolved; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation a8afe6fa-b2f5-4a0d-868a-caff36dfee48 · outbound

This paper cites A., Malacaria, C., Jenke, P.

A candidate cyclotron line at 1.89 keV in the ultraluminous X-ray source NGC 4861 X-2 A., Malacaria, C., Jenke, P

Reference 40

Resolution: malformed identifier; no resolver link, observed 2026-06-28T05:31:35.240563Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Pith citing papers

No inbound Pith citation observations are available.