2026RNAAS..10....4F

Query : 2026RNAAS..10....4F

2026RNAAS..10....4F - Research Notes of the AAS, 10, 4 (2026/January-0)

Spatially Resolved Analysis of Ionization Mechanisms in SGAS1723+34.

FULLINGTON C., OLIVIER G.M., SPILKER J., GLADDERS M.D. and SHARON K.

Abstract (from CDS):

Understanding the ionizing sources inside galaxies has been a decades-long goal for astronomers. Using spatially resolved JWST/NIRSpec data, we explore the emission line diagnostics [O III]/Hβ versus [N II]/Hα and [S II]/Hα in SGAS1723+34, a galaxy at redshift z = 1.3293. The diagnostic diagrams show possible Active Galactic Nucleus (AGN) ionization in the galaxy; however, with further analysis of the imaging contours, we find that this AGN detection is located within a star-forming clump. We propose that the AGN detection from the BPT diagram is caused by the galaxy-wide formation of stellar populations with harder ionizing spectra than those found at low redshift.

Abstract Copyright: © 2026. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Ionization - Gravitational lensing - Galaxy evolution

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 [SAB2013] SDSS J1723+3411 source LeG 17 23 36.50 +34 11 55.9           ~ 11 0

Query : 2026RNAAS..10....4F

Basic data :
[SAB2013] SDSS J1723+3411 source -- Gravitationally Lensed Image of a Galaxy
Other object types: otypes_help 		LeG ([KAD2010]), G ([SAB2013])
ICRS coord. (ep=J2000) : 		17 23 36.50 +34 11 55.9 (Optical) [ ] D 2013MNRAS.436.1040S
FK4 coord. (ep=B1950 eq=1950) : 		17 21 47.56 +34 14 38.2 [ ]
Gal coord. (ep=J2000) : 		058.02454 +32.10919 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 206488 [60] / z(spectroscopic) 1.3294 [0.0002] / cz 398544 [60]
   D 2010ApJ...724L.137K
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Hierarchy : number of linked objects
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Identifiers (2) :
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[KAD2010] SDSS J1723+3411 source [SAB2013] SDSS J1723+3411 source

References (11 between 1850 and 2026) (Total 11)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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