Accretion disc reverberation mapping in a high-redshift quasar
Powered by supermassive black holes at their centers, quasars are among the most luminous objects in the Universe, serving as important probes of cosmic history and galaxy evolution. The size of the accretion disc surrounding the black hole is a critical parameter for understanding quasar physics an...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Dokumenttyp: | Article (Journal) Editorial |
| Sprache: | Englisch |
| Veröffentlicht: |
06 August 2025
|
| In: |
Astronomy and astrophysics
Year: 2025, Jahrgang: 700, Pages: 1-9 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202555421 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202555421 Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2025/08/aa55421-25/aa55421-25.html |
| Verfasserangaben: | F. Pozo Nuñez, E. Bañados, S. Panda, and J. Heidt |
MARC
| LEADER | 00000naa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1945722517 | ||
| 003 | DE-627 | ||
| 005 | 20251210103229.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 251210s2025 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/202555421 |2 doi | |
| 035 | |a (DE-627)1945722517 | ||
| 035 | |a (DE-599)KXP1945722517 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Pozo Nuñez, Francisco |e VerfasserIn |0 (DE-588)1053534396 |0 (DE-627)790169304 |0 (DE-576)409472220 |4 aut | |
| 245 | 1 | 0 | |a Accretion disc reverberation mapping in a high-redshift quasar |c F. Pozo Nuñez, E. Bañados, S. Panda, and J. Heidt |
| 264 | 1 | |c 06 August 2025 | |
| 300 | |b Diagramme | ||
| 300 | |a 9 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 10.12.2025 | ||
| 520 | |a Powered by supermassive black holes at their centers, quasars are among the most luminous objects in the Universe, serving as important probes of cosmic history and galaxy evolution. The size of the accretion disc surrounding the black hole is a critical parameter for understanding quasar physics and their potential use as standard candles in cosmology. However, direct measurements of accretion disc sizes have so far been confined to the Local Universe (z < 0.2), limiting our understanding of quasars during the peak of cosmic activity. Here, we report the first direct measurement of the accretion disc size in the quasar QSO J0455-4216 at z = 2.66, when the Universe was only ∼2 Gyrs old. Medium-band filters mounted on the MPG/ESO 2.2-metre telescope at La Silla Observatory were used to isolate continuum emission regions during a six-month monitoring campaign. The light curves exhibit pronounced variability features and enabled the detection of inter-band time delays from different parts of the disc. We mapped the disc and located its ultraviolet-emitting outermost region at light-days from the black hole (∼500 AU). Given a supermassive black hole 900 million times the mass of the Sun, these measurements validate accretion disc theory at an unprecedented redshift and pave the way for efficient black hole mass estimates, reducing decades-long spectroscopic reverberation campaigns to just a few years or less. | ||
| 700 | 1 | |a Bañados Torres, Eduardo |e VerfasserIn |4 aut | |
| 700 | 1 | |a Panda, S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Heidt, Jochen |e VerfasserIn |0 (DE-588)1034791141 |0 (DE-627)746286147 |0 (DE-576)171796551 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 700(2025) vom: Aug., Artikel-ID L8, Seite 1-9 |h Online-Ressource |w (DE-627)253390222 |w (DE-600)1458466-9 |w (DE-576)072283351 |x 1432-0746 |7 nnas |a Accretion disc reverberation mapping in a high-redshift quasar |
| 773 | 1 | 8 | |g volume:700 |g year:2025 |g month:08 |g elocationid:L8 |g pages:1-9 |g extent:9 |a Accretion disc reverberation mapping in a high-redshift quasar |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/202555421 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |7 0 |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2025/08/aa55421-25/aa55421-25.html |x Verlag |z kostenfrei |3 Volltext |7 0 |
| 951 | |a AR | ||
| 992 | |a 20251210 | ||
| 993 | |a Editorial | ||
| 994 | |a 2025 | ||
| 998 | |g 1034791141 |a Heidt, Jochen |m 1034791141:Heidt, Jochen |d 700000 |d 714000 |d 714300 |e 700000PH1034791141 |e 714000PH1034791141 |e 714300PH1034791141 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714300/ |p 4 |y j | ||
| 999 | |a KXP-PPN1945722517 |e 4826033044 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"person":[{"role":"aut","roleDisplay":"VerfasserIn","display":"Pozo Nuñez, Francisco","given":"Francisco","family":"Pozo Nuñez"},{"role":"aut","roleDisplay":"VerfasserIn","display":"Bañados Torres, Eduardo","given":"Eduardo","family":"Bañados Torres"},{"family":"Panda","given":"S.","roleDisplay":"VerfasserIn","display":"Panda, S.","role":"aut"},{"role":"aut","display":"Heidt, Jochen","roleDisplay":"VerfasserIn","given":"Jochen","family":"Heidt"}],"title":[{"title":"Accretion disc reverberation mapping in a high-redshift quasar","title_sort":"Accretion disc reverberation mapping in a high-redshift quasar"}],"type":{"media":"Online-Ressource","bibl":"article-journal"},"note":["Gesehen am 10.12.2025"],"recId":"1945722517","language":["eng"],"name":{"displayForm":["F. Pozo Nuñez, E. Bañados, S. Panda, and J. Heidt"]},"origin":[{"dateIssuedDisp":"06 August 2025","dateIssuedKey":"2025"}],"id":{"doi":["10.1051/0004-6361/202555421"],"eki":["1945722517"]},"physDesc":[{"extent":"9 S.","noteIll":"Diagramme"}],"relHost":[{"part":{"extent":"9","text":"700(2025) vom: Aug., Artikel-ID L8, Seite 1-9","volume":"700","pages":"1-9","year":"2025"},"titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}],"pubHistory":["1.1969 -"],"recId":"253390222","language":["eng"],"corporate":[{"display":"European Southern Observatory","roleDisplay":"Herausgebendes Organ","role":"isb"}],"note":["Gesehen am 21.06.2024","Erscheint 36mal jährlich in 12 Bänden zu je 3 Ausgaben","Fortsetzung der Druck-Ausgabe"],"disp":"Accretion disc reverberation mapping in a high-redshift quasarAstronomy and astrophysics","type":{"media":"Online-Ressource","bibl":"periodical"},"title":[{"title_sort":"Astronomy and astrophysics","title":"Astronomy and astrophysics","subtitle":"an international weekly journal"}],"physDesc":[{"extent":"Online-Ressource"}],"id":{"issn":["1432-0746"],"eki":["253390222"],"zdb":["1458466-9"]},"origin":[{"dateIssuedDisp":"1969-","dateIssuedKey":"1969","publisher":"EDP Sciences ; Springer","publisherPlace":"Les Ulis ; Berlin ; Heidelberg"}],"name":{"displayForm":["European Southern Observatory (ESO)"]}}]} | ||
| SRT | |a POZONUNEZFACCRETIOND0620 | ||