Paper Citation Record · LEDGER

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions

As of 22 August 2026, this Paper Citation Record lists 37 of 37 outbound references and 0 inbound Pith citation observations for arXiv:1908.08404.

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

pith.paper-citation-record.v1
1908.08404 v4

Coverage vector

measured 37 of 37 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T11:46:42.030748Z

measured 37 of 37 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-22T06:32:14.747728+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

37 of 37 outbound references displayed

verified exact1
verified fuzzy27
unresolved7
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External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 12993975-c0ea-4bfe-affc-cc817ad8d47b · outbound

This paper cites an unresolved cited work.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Unresolved cited work

Reference 1

Resolution: unresolved; raw_fallback, observed 2026-08-14T11:46:42.545934Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 5e1b4e01-98df-4d73-902c-a67d5ef73d41 · outbound

This paper cites an unresolved cited work.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Unresolved cited work

Reference 2

Resolution: unresolved; raw_fallback, observed 2026-08-14T11:46:42.531594Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation ed72f526-226a-4f79-8339-9785807c1fe9 · outbound

This paper cites F., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions F., et al

Reference 3

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.518854Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation f5f076ab-6352-4ae2-b482-f6012661106c · outbound

This paper cites 2018, P ASJ, 70, S49.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S49

Reference 4

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.506464Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation fe73af14-f5e1-457e-a768-83cb81f45fda · outbound

This paper cites 2019, P ASJ, doi:10.1093/pasj/psz119.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2019, P ASJ, doi:10.1093/pasj/psz119

Reference 5

Resolution: unresolved; no resolver link, observed 2026-08-14T11:46:41.897769Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 24cec779-ca6f-4833-bc05-bca502097ee9 · outbound

This paper cites L., Madore, B.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions L., Madore, B

Reference 6

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.494640Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 0e11fdf5-0268-4e13-9810-bd6bd53c43dd · outbound

This paper cites High-mass star formation in Orion possibly triggered by cloud-cloud collision III, NGC2068 and NGC2071.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions High-mass star formation in Orion possibly triggered by cloud-cloud collision III, NGC2068 and NGC2071

Reference 7

Resolution: metadata mismatch; local_arxiv, observed 2026-08-14T11:46:42.116347Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 87e6b5ed-8514-4aa5-89fc-9223ea1dbcb4 · outbound

This paper cites 2020, P ASJ, doi:10.1093/pasj/psaa005.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2020, P ASJ, doi:10.1093/pasj/psaa005

Reference 8

Resolution: verified exact; doi, observed 2026-08-14T11:46:42.064440Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 58fd0811-1b18-4b61-aa33-06395be12102 · outbound

This paper cites 2012, ApJ, 746, 82.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2012, ApJ, 746, 82

Reference 9

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.481779Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 46c4165b-14c3-4e5e-a0c3-e1b779c65240 · outbound

This paper cites 2014, ApJ, 780, 36.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2014, ApJ, 780, 36

Reference 10

Resolution: unresolved; no resolver link, observed 2026-08-14T11:46:41.920374Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation b74d53f5-d5f2-414d-a221-8707704f1a31 · outbound

This paper cites 2015, ApJL, 807, L4.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2015, ApJL, 807, L4

Reference 11

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.462744Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation be434808-d040-4d74-8754-4b51c4938904 · outbound

This paper cites 2016, ApJ, 820, 26.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2016, ApJ, 820, 26

Reference 12

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.450370Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation c539e2b3-c21e-4540-8a18-733ac25b413e · outbound

This paper cites 2017, P ASJ, 69, L5.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2017, P ASJ, 69, L5

Reference 13

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.437003Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation f8df233e-1e3d-4cb2-afd1-7fa87c236148 · outbound

This paper cites 2019, ApJ, 886, 14.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2019, ApJ, 886, 14

Reference 14

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.423853Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation e63bd62b-c0f7-473e-bfa1-e971105b2b84 · outbound

This paper cites R., Ohama, A., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions R., Ohama, A., et al

Reference 15

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.408193Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 04c4c8ac-ce12-40fe-984e-bddc504196d5 · outbound

This paper cites J., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions J., et al

Reference 16

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.395795Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 1b956899-cb2b-4612-9878-0fdf38ce3187 · outbound

This paper cites J., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions J., et al

Reference 17

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.382106Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation a1e0772f-fcb0-4503-a4cf-0a63c4f15b56 · outbound

This paper cites 1992, P ASJ, 44, 203.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 1992, P ASJ, 44, 203

Reference 18

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.366941Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 62018ad6-e3c3-446d-a829-325e4a0dc7ae · outbound

This paper cites B., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions B., et al

Reference 19

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.353753Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation b416e42a-3e92-41e4-9502-629cb21deaff · outbound

This paper cites 2018, P ASJ, 70, S48.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S48

Reference 20

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.338827Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 271a45e2-be60-40a2-ad94-c0b2f9527bd9 · outbound

This paper cites 2013, ApJL, 774, L31.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2013, ApJL, 774, L31

Reference 21

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.325204Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation ee83e7a9-b318-4a7e-affc-a3e4b250f14e · outbound

This paper cites 2018, P ASJ, 70, S53.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S53

Reference 22

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.310981Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 96c29b1a-b1ca-467c-805a-46bf6b7310b5 · outbound

This paper cites an unresolved cited work.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Unresolved cited work

Reference 23

Resolution: unresolved; raw_fallback, observed 2026-08-14T11:46:42.297064Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation aab42c1a-fe69-4d4c-baf0-231977ec0074 · outbound

This paper cites 2000, ARA&A, 38, 613 Massey , P ., Olsen, K.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2000, ARA&A, 38, 613 Massey , P ., Olsen, K

Reference 24

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.283038Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 6cc6272c-fde9-4e09-95e9-34a3d798fc85 · outbound

This paper cites an unresolved cited work.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Unresolved cited work

Reference 25

Resolution: unresolved; no resolver link, observed 2026-08-14T11:46:41.981644Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation 8c0bda31-e595-43a4-b2c1-73fc7155c84d · outbound

This paper cites D., & Prabhu, T.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions D., & Prabhu, T

Reference 26

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.258659Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 76178601-1d3c-4792-bcef-46fe4993c222 · outbound

This paper cites P ., Waters, B., Schiebel, D., Young, W ., & Golap , K.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions P ., Waters, B., Schiebel, D., Young, W ., & Golap , K

Reference 27

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.246102Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 334b683f-f193-46cd-ad2e-82d1880dc789 · outbound

This paper cites E., Kohno, K., T osaki, T., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions E., Kohno, K., T osaki, T., et al

Reference 28

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.230829Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 0097062d-e5fc-4d38-a25f-e45ac69755a5 · outbound

This paper cites 2018, P ASJ, 70, S47.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S47

Reference 29

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.217860Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 953142af-2fc5-40df-8ef7-145e0a910f19 · outbound

This paper cites 2017, ApJ, 835, 108.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2017, ApJ, 835, 108

Reference 30

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.205046Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation ffbdbdc9-37ab-4d27-aa56-030061fb36df · outbound

This paper cites Molecular and Atomic Clouds toward the Wolf-Rayet Nebula NGC 2359: Possible Evidence for Isolated High-Mass Star Formation Triggered by a Cloud-Cloud Collision.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Molecular and Atomic Clouds toward the Wolf-Rayet Nebula NGC 2359: Possible Evidence for Isolated High-Mass Star Formation Triggered by a Cloud-Cloud Collision

Reference 31

Resolution: metadata mismatch; local_arxiv, observed 2026-08-14T11:46:42.097699Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation afa18c81-aa2b-43f8-b7f1-77946172af53 · outbound

This paper cites 2018, P ASJ, 70, S43.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S43

Reference 32

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.192837Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 9efb05f6-3074-4af5-9859-b0b159e2315d · outbound

This paper cites J., Federrath, C., et al.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions J., Federrath, C., et al

Reference 33

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.179892Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 0c7b0a7f-ddfe-4175-bbd3-e896aaf597d7 · outbound

This paper cites 2018, P ASJ, 70, S52.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2018, P ASJ, 70, S52

Reference 34

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.166362Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation a1016204-ab84-4e6b-8da0-eb23b05c4954 · outbound

This paper cites J., & Habe, A.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions J., & Habe, A

Reference 35

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.154083Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation 0b221993-9974-42e0-906d-b33a51c16396 · outbound

This paper cites 2019, ApJ, 871, 44 Verley , S., Hunt, L.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions 2019, ApJ, 871, 44 Verley , S., Hunt, L

Reference 36

Resolution: verified fuzzy; raw_fallback, observed 2026-08-14T11:46:42.141737Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Observation a5a7e868-af25-45a1-9bcd-a2a2495553d0 · outbound

This paper cites an unresolved cited work.

ALMA CO Observations of a Giant Molecular Cloud in M33: Evidence for High-Mass Star Formation Triggered by Cloud-Cloud Collisions Unresolved cited work

Reference 37

Resolution: unresolved; raw_fallback, observed 2026-08-14T11:46:42.128983Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.

Pith citing papers

No inbound Pith citation observations are available.