SIMBAD references

2025AJ....170..241S - Astron. J., 170, 241 (2025/October-0)

The DELVE Quadruple Quasar Search. I. A Lensed Low-luminosity Active Galactic Nucleus.

SCHECHTER P.L., SLUSE D., ZABOROWSKI E.A., DRLICA-WAGNER A., LEMON C., DUX F., COURBIN F., HEMPEL A., MILLON M., TREU T., TEIXEIRA R., ADAMOW M., BOM C.R., CARBALLO-BELLO J.A., FERGUSON P.S., GRUENDL R.A., JAMES D.J., MARTINEZ-VAZQUEZ C.E., MASSANA P., MAU S., MUTLU-PAKDIL B., NOEL N.E.D., PACE A.B., SAKOWSKA J.D., STRINGFELLOW G.S., TOLLERUD E.J., VIVAS A.K. and ZENTENO A.

Abstract (from CDS):

A quadruply lensed source, J125856.3-031944, has been discovered using the DELVE survey and Wide-field Infrared Survey Explorer W1-W2 colors. Follow-up direct imaging carried out with the Magellan Baade 6.5 m telescope is analyzed, as is spectroscopy from the 2.5 m Nordic Optical Telescope. The lensed image configuration is kite-like, with the major axis of the lensing galaxy along the symmetry axis of the kite, and with the faintest image at its tail. Redward of 6000 Å, the tail image is strongly blended with the lensing galaxy. The Sloan g direct imaging carried out with Magellan permits deblending. As the lensed image configuration is nearly circular, simple models give high predicted magnifications for all four images. The source's narrow emission lines at redshift z = 2.225 and low intrinsic luminosity qualify it as a type 2 active galactic nucleus. The Magellan image shows a substantial residual that suggests a second lensing galaxy.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Low-luminosity active galactic nuclei - Quasars - Strong gravitational lensing

Status at CDS : Acronym for new objects described in the dictionary of nomenclature and being created in SIMBAD.

Simbad objects: 7

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