Pith. sign in

Paper Citation Record · LEDGER

Quasar emission lines as virial luminosity estimators

As of 17 August 2026, this Paper Citation Record lists 37 of 37 outbound references and 0 inbound Pith citation observations for arXiv:1908.08700.

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

pith.paper-citation-record.v1
1908.08700 v1

Coverage vector

measured 37 of 37 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-14T11:38:17.588463Z

measured 37 of 37 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-17T06:30:58.91139+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 exact3
  • verified fuzzy7
  • unresolved22
  • parse uncertain0
  • malformed identifier4
  • metadata mismatch1

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation 4dbac387-bd53-46eb-b886-848e798ca12d · outbound

This paper cites A., Czerny, B., Lasota, J.

Quasar emission lines as virial luminosity estimators A., Czerny, B., Lasota, J

Reference 1

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.179758Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.179758Z digest=sha256:00063d708b370787b3881533d1c8d4ed3b5cdf2f30abf182cce1c613b3358c36

Observation 10e3bf95-663a-4f91-acb9-26e370555aa2 · outbound

This paper cites L., Popovi´ c, L.ˇC., & Shapovalova, A.

Quasar emission lines as virial luminosity estimators L., Popovi´ c, L.ˇC., & Shapovalova, A

Reference 2

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.185422Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.185422Z digest=sha256:9fef2cb4e9ad7eb0fbede073d8bf3befe93845d119aa86ae227ce4cc918f4030

Observation 6515a8c2-fb20-40b8-bda9-1611012e3d7e · outbound

This paper cites W., et al., Average Ultraviolet Quasar Spectra in 10 P.

Quasar emission lines as virial luminosity estimators W., et al., Average Ultraviolet Quasar Spectra in 10 P

Reference 3

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.191178Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.191178Z digest=sha256:7343341fe9783b12a3b02c45fe5b773183119fa846e3fe467fda264b844977ae

Observation e96a2ef9-4647-4914-8d6f-46be10312da3 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 4

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.197034Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.197034Z digest=sha256:b7065638e9258c474469aee354c107286c7036dae592cdf90b1dfafb0db89dff

Observation 94d937b8-98c8-497e-9c91-ffce105bfde8 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 5

Resolution
unresolved
raw_fallback, observed 2026-08-14T11:38:19.016148Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.202908Z digest=sha256:fba1370219679f4218d378827450a55ffbadb6db43d6d3eda9d60b1b893280ce

Observation d19ec6ce-35f3-4fb6-aa83-252282517731 · outbound

This paper cites C., Banerji, M., et al., Correcting C IV-based virial black hole masses.

Quasar emission lines as virial luminosity estimators C., Banerji, M., et al., Correcting C IV-based virial black hole masses

Reference 6

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.208090Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.208090Z digest=sha256:f179738da64dd072ab06d4bd8e1e2fc126d1805cf05b3db17ec8f69d23f30106

Observation 7e7e9b8c-aa72-4236-96fb-f291bc966325 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 7

Resolution
verified exact
doi, observed 2026-08-14T11:38:17.862284Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.213770Z digest=sha256:df83c22d6a97d5566be17213bd040d3e4b0aad4d87a8a11aeba2974529307758

Observation 3d58153b-f173-4a91-a374-bbbe8cf0498d · outbound

This paper cites M., Fan, X., Brandt, W.

Quasar emission lines as virial luminosity estimators M., Fan, X., Brandt, W

Reference 8

Resolution
malformed identifier
no resolver link, observed 2026-08-14T11:38:17.218371Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.218371Z digest=sha256:762c70ba480399b6c3c626b0572f77b322bc4ad542d0dd6933b917451499ee9d

Observation e8e5645c-7ca7-40bc-bfb1-11260132a07d · outbound

This paper cites 2016, Astrophys.

Quasar emission lines as virial luminosity estimators 2016, Astrophys

Reference 9

Resolution
malformed identifier
no resolver link, observed 2026-08-14T11:38:17.223003Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.223003Z digest=sha256:75d4da499b6856c686a441f700e6e130877e8597519a3e32d3de36d9e48b1a1d

Observation ef05193b-32f9-40ca-8fde-c58696ecfb6f · outbound

This paper cites 2000, Astrophys.

Quasar emission lines as virial luminosity estimators 2000, Astrophys

Reference 10

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.227242Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.227242Z digest=sha256:a25066b547bf7ac4e496fa03e9b84bc43bf78f06a7e2c2536010e450e8d8f747

Observation faf90322-5d25-4fc3-8554-c9d7ba870a18 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 11

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.232533Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.232533Z digest=sha256:f68cbd2abd903a82629b875567972888e387aa5dc31a7c5a99697e9bd1b61aff

Observation b6298435-46a8-423d-bf39-2df4243ce985 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 12

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.237297Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.237297Z digest=sha256:2788b42854b2f693b5f6c523eb3d14fca8e318c138f213a0d03bb462ea394418

Observation 13f70a9d-d2c3-4f33-b479-83b3229ee3e7 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 13

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.242592Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.242592Z digest=sha256:3b1dc5b37c6c5c456e9ac8e8912603e99a1018e7c7bee852848351915e976849

Observation cd0fade2-f8d7-40f8-8a69-ba4c1ae569dd · outbound

This paper cites A., et al., Black hole mass estimates in quasars.

Quasar emission lines as virial luminosity estimators A., et al., Black hole mass estimates in quasars

Reference 14

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.247372Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.247372Z digest=sha256:3feddf2108eda483c986230cf5bd8b1f416566f1e53a5b104df97fa7149f892c

Observation 951c585f-710d-494a-9beb-e5b542e84022 · outbound

This paper cites W., et al., A main sequence for quasars.

Quasar emission lines as virial luminosity estimators W., et al., A main sequence for quasars

Reference 15

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.998039Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.252293Z digest=sha256:e27f49d76b05a00a9609d270ce34095c57d2d05c264b687b7a68e4bde4c24697

Observation 9e0ca281-1efb-4569-a04e-c0c1080699a1 · outbound

This paper cites A., Dultzin, D., et al., Highly accreting quasars: a tool for cosmology? 2017, in IAU Symposium, Vol.

Quasar emission lines as virial luminosity estimators A., Dultzin, D., et al., Highly accreting quasars: a tool for cosmology? 2017, in IAU Symposium, Vol

Reference 16

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.824848Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.257077Z digest=sha256:08d722e200093d4007400af34a980d7a271eeaddc5236cf5046060c8126e4767

Observation 217fdad0-7bb5-4234-a190-54b931933b01 · outbound

This paper cites & Sulentic, J.

Quasar emission lines as virial luminosity estimators & Sulentic, J

Reference 17

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.261595Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.261595Z digest=sha256:09c57e0a470d078ae70f786ff9e1ea6055afeacf8f7a3902f9597305c1569692

Observation 3070a120-d856-4b5b-9dc7-0fb3b7828693 · outbound

This paper cites W., Dultzin-Hacyan, D., Calvani, M., & Moles, M., Compar- ative Analysis of the High- and Low-Ionization Lines in the Broad-Line Region of Active Galactic Nuclei.

Quasar emission lines as virial luminosity estimators W., Dultzin-Hacyan, D., Calvani, M., & Moles, M., Compar- ative Analysis of the High- and Low-Ionization Lines in the Broad-Line Region of Active Galactic Nuclei

Reference 18

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.266201Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.266201Z digest=sha256:b01d5c53fccb65ab3811972aa6cf6f78eded019613666b03f1758df3bf60b6e0

Observation dee03035-51e6-4408-baee-8b974be02783 · outbound

This paper cites Low-Ionization Outflows in High Eddington Ratio Quasars.

Quasar emission lines as virial luminosity estimators Low-Ionization Outflows in High Eddington Ratio Quasars

Reference 19

Resolution
verified exact
local_arxiv, observed 2026-08-14T11:38:18.078569Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.270803Z digest=sha256:e288d87150783dd686d048d055c18b466559944e093fef7cfb0e67a0597be474

Observation c08b5e66-6cb7-4c3e-b67e-8432024cbc33 · outbound

This paper cites 2000, Publ.

Quasar emission lines as virial luminosity estimators 2000, Publ

Reference 20

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.297555Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.297555Z digest=sha256:0971a5de415cc7033b39fcaf7007a871e5955f357c6be79762936cf1c4a3e7ab

Observation 71092a54-87e3-42a4-832a-c3d9565abb57 · outbound

This paper cites 2012, ApJ, 757, 62.

Quasar emission lines as virial luminosity estimators 2012, ApJ, 757, 62

Reference 21

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.688234Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.326228Z digest=sha256:2669575c78d46f8f398413c8f4e8f2898adfa1567eb2be9946afcb9a339b59bc

Observation a7bd9e33-0504-49f4-9cb4-a618bfbad4cc · outbound

This paper cites A., Dultzin, D., Marziani, P., et al., Highly accreting quasars: The SDSS low-redshift catalog.

Quasar emission lines as virial luminosity estimators A., Dultzin, D., Marziani, P., et al., Highly accreting quasars: The SDSS low-redshift catalog

Reference 22

Resolution
malformed identifier
no resolver link, observed 2026-08-14T11:38:17.353641Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.353641Z digest=sha256:0aec947435846fb6e5a22a06884c508c15130dd6d9c9b0a512002c9dedfc2b34

Observation ecc04e4e-2444-4795-99dc-21df0120e4a8 · outbound

This paper cites A., Dultzin, D., Marziani, P., & Sulentic, J.

Quasar emission lines as virial luminosity estimators A., Dultzin, D., Marziani, P., & Sulentic, J

Reference 23

Resolution
verified exact
doi, observed 2026-08-14T11:38:17.740204Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.384363Z digest=sha256:d005fd0b1ef203dbce9924b21827cfbc67dad38453e200989af17ad6ce768af8

Observation e05e71de-1c1c-4dee-abb3-0d9c51cc5f5a · outbound

This paper cites The Quasar Main Sequence explained by the combination of Eddington ratio, metallicity and orientation.

Quasar emission lines as virial luminosity estimators The Quasar Main Sequence explained by the combination of Eddington ratio, metallicity and orientation

Reference 24

Resolution
metadata mismatch
local_arxiv, observed 2026-08-14T11:38:17.963576Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.430685Z digest=sha256:76145cfee02175cfc685b2118c63e2776a1a13b562bce69274f42e66cc1be425

Observation 87a4fd60-6e61-4335-9123-9ec24ce687f7 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 25

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.454600Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.454600Z digest=sha256:7a4dfb05a52c1449db05b98cfebc9e6776eb0aa1e7a6331363a51e14599e3abd

Observation a44e2044-1686-46ea-aa5b-e0819c397a5d · outbound

This paper cites & Lusso, E., A Hubble Diagram for Quasars.

Quasar emission lines as virial luminosity estimators & Lusso, E., A Hubble Diagram for Quasars

Reference 26

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.460354Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.460354Z digest=sha256:1f5f7839554c06351e5dd1f4c99ab2ef0ca9951987ff5fdd8a4412631071ee51

Observation 2ab3f4e8-fcbe-4e07-b7f6-c31589a5163f · outbound

This paper cites Slim accretion disks around black holes.

Quasar emission lines as virial luminosity estimators Slim accretion disks around black holes

Reference 27

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.466065Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.466065Z digest=sha256:2ff1b1fe4b2256daa0b0457089228ef7973f4d7d6fa80f601f28152a41898ef8

Observation 43b92dc9-ac4f-430b-b527-3614dcdce238 · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 28

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.470755Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.470755Z digest=sha256:e6c6855929360eb81b58e9790fcbb3da8a2c1dd1ddb3a6bd4407efb2b5b7fb47

Observation 77a1306f-51d4-46b1-952e-100181531298 · outbound

This paper cites 2011, Baltic Astronomy, 20, 427.

Quasar emission lines as virial luminosity estimators 2011, Baltic Astronomy, 20, 427

Reference 29

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.667897Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.476558Z digest=sha256:51e4480db6ca384cf369a7804f8341e0e99847d4f1274ea14899f04db510b05f

Observation 2da85eba-91f6-42ea-940d-087143d9899c · outbound

This paper cites W., Bachev, R., Marziani, P., Negrete, C.

Quasar emission lines as virial luminosity estimators W., Bachev, R., Marziani, P., Negrete, C

Reference 30

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.481759Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.481759Z digest=sha256:5d5918057fcdf2f10ba99684e7084ba4c2c3ef5b26a3aae4d721c25681ba7d0a

Observation 20f7787a-9e2b-4a7e-a19f-ba1bad2a8be6 · outbound

This paper cites W., del Olmo, A., Marziani, P., et al., What does CIV λ1549 tell us about the physical driver of the Eigenvector quasar sequence? 2017, Astron.

Quasar emission lines as virial luminosity estimators W., del Olmo, A., Marziani, P., et al., What does CIV λ1549 tell us about the physical driver of the Eigenvector quasar sequence? 2017, Astron

Reference 31

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.487194Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.487194Z digest=sha256:0c3d86db74de7e2e48f142495088c51284407765ab0d180be1b418d6493b0ece

Observation 81b613e2-f029-4e5e-b5ba-02f6cb4c3904 · outbound

This paper cites W., Marziani, P., & Calvani, M., An H-R diagram for AGN? 2001, in AIP.

Quasar emission lines as virial luminosity estimators W., Marziani, P., & Calvani, M., An H-R diagram for AGN? 2001, in AIP

Reference 32

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.650649Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.492480Z digest=sha256:e55e93e2b3659c90ed3a895e515aa424dab4e31e34f895a4845294e69f70d6f1

Observation aaedf8f4-6d37-4be8-b387-1765d179eefb · outbound

This paper cites W., Marziani, P., & Dultzin-Hacyan, D., Phenomenology of Broad Emis- sion Lines in Active Galactic Nuclei.

Quasar emission lines as virial luminosity estimators W., Marziani, P., & Dultzin-Hacyan, D., Phenomenology of Broad Emis- sion Lines in Active Galactic Nuclei

Reference 33

Resolution
malformed identifier
no resolver link, observed 2026-08-14T11:38:17.497100Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.497100Z digest=sha256:7a2cabce38cf69fae6a2cd152eca6aa26360f26d718208776fdeb73d16ae56e4

Observation e4e27fd8-37b5-485e-8d28-e44700382bb6 · outbound

This paper cites W., Zamfir, S., Marziani, P., & Dultzin, D., Our Search for an H-R Diagram of Quasars.

Quasar emission lines as virial luminosity estimators W., Zamfir, S., Marziani, P., & Dultzin, D., Our Search for an H-R Diagram of Quasars

Reference 34

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.632649Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.501817Z digest=sha256:831cf2040a70c446deef39f5ff1507078b68285f4b5437b807ffa856514dfb28

Observation 9911187b-2d98-4940-826d-61eab383e73a · outbound

This paper cites an unresolved cited work.

Quasar emission lines as virial luminosity estimators Unresolved cited work

Reference 35

Resolution
unresolved
raw_fallback, observed 2026-08-14T11:38:18.606027Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.524105Z digest=sha256:601371d4bdcf7ddac6d4a6bda44e832459f39c2a82aec9b1cd3595f74093c03a

Observation 5c6369f5-7193-490e-83b1-3c94710a3433 · outbound

This paper cites 2017, in American Astronomical Society Meeting Abstracts, Vol.

Quasar emission lines as virial luminosity estimators 2017, in American Astronomical Society Meeting Abstracts, Vol

Reference 36

Resolution
verified fuzzy
raw_fallback, observed 2026-08-14T11:38:18.398494Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-17T06:30:58.91139+00:00.

source=pdf_text observed=2026-08-14T11:38:17.557314Z digest=sha256:2c4160bd81ef0901afacb2357915345fa571a9076003b97914e000bcc09a7c3c

Observation e93ddb3d-d473-4d79-b911-7756e0405284 · outbound

This paper cites 2013, Physical Review Letters, 110, 081301, DOI: 10.1103/PhysRevLett.110.081301.

Quasar emission lines as virial luminosity estimators 2013, Physical Review Letters, 110, 081301, DOI: 10.1103/PhysRevLett.110.081301

Reference 37

Resolution
unresolved
no resolver link, observed 2026-08-14T11:38:17.588463Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-14T11:38:17.588463Z digest=sha256:4b4da57c0324fe2cdb45d3eb621849a95756141e7e720b6ae4899275111acfe3

Pith citing papers

No inbound Pith citation observations are available.