Spatially resolved broad-line region in a quasar at z = 4

We present the first near-infrared interferometric data of a QSO at z = 4. The K-band observations were performed with GRAVITY+ on the VLTI using all four UTs, detecting a differential phase signal that traces the spatially resolved kinematics for both the Hβ and Hγ lines in the broad-line region (B...

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Principais autores:	Abd El Dayem K., Aimar N., Berdeu A., Berger J.-P., Bourdarot G., Bourget P., Brandner W., Cao Y., Correia C., Cuevas Cardona S., Davies R., Defrère D., Drescher A., Eckart A., Eisenhauer F., Fabricius M., Farah A., Feuchtgruber H., Förster Schreiber N. M., Foschi A., Garcia P., Garcia Lopez R., Genzel R., Gillessen S., Gomes T., Gonté F., Gopinath V., Graf J., Hartl M., Haubois X., Haußmann F., Ho L. C., Hönig S., Houllé M., Joharle S., Keiman C., Kervella P., Kolb J., Kreidberg L., Labdon A., Lacour S., Lai O., Lai S., Laugier R., Le Bouquin J.-B., Leftley J., Li R., Lopez B., Lutz D., Mang F., Mérand A., Millour F., Montargès M., More N., Morujão N., Nowacki H., Nowak M., Oberti S., Onken C., Osorno J., Ott T., Paumard T., Perraut K., Perrin G., Petrov R., Petrucci P.-O., Pourré N., Rabien S., Rau C., Ribeiro D. C., Robbe-Dubois S., Sadun Bordoni M., Salman M., Sanchez-Bermudez J., Santos D., Sauter J., Scialpi M., Scigliuto J., Shangguan J., Shchekaturov P., Shimizu T., Soulez F., Straubmeier C., Sturm E., Subroweit M., Sykes C., Tacconi L. J., Übler H., Ulbricht G., Vincent F., Webster R., Wieprecht E., Woillez J., Wolf C.
Format:	Artigo
Jezik:	Inglês
Izdano:	EDP Sciences 2026-02-01
Serija:	Astronomy & Astrophysics
Teme:	galaxies: active quasars: emission lines quasars: supermassive black holes infrared: galaxies quasars: individual: smss j052915.80-435152.0
Online dostop:	https://www.aanda.org/articles/aa/full_html/2026/02/aa57285-25/aa57285-25.html
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