2021MNRAS.505L...1S

Query : 2021MNRAS.505L...1S

2021MNRAS.505L...1S - Mon. Not. R. Astron. Soc., 505, L1-L5 (2021/July-3)

Resolving star-forming clumps in a z ∼ 2 lensed galaxy: a pixelated Bayesian approach.

SHARMA S., RICHARD J., YUAN T., PATRICIO V., KEWLEY L., RIGBY J.R., GUPTA A. and LEETHOCHAWALIT N.

Abstract (from CDS):

We present a pixelized source reconstruction method applied on integral field spectroscopic observations of gravitationally lensed galaxies. We demonstrate the effectiveness of this method in a case study on the clumpy morphology of a z ∼ 2 lensed galaxy behind a group-scale lens. We use a Bayesian forward source modelling approach to reconstruct the surface brightness distribution of the source galaxy on a uniformly pixelized grid while accounting for the image point spread function. The pixelated approach is sensitive to clump sizes down to 100 pc and resolves smaller clump sizes with an improvement in the signal-to-noise ratio by almost a factor of 10 compared with more traditional ray-tracing approaches.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): gravitational lensing: strong - galaxies: evolution - galaxies: high-redshift

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 CSWA 128 gLS 19 58 35.32 +59 50 58.9           ~ 11 0

Query : 2021MNRAS.505L...1S

Basic data :
CSWA 128 -- Gravitational Lens System (lens+images)
Other object types: otypes_help 		gLS (2013MNRAS,CSWA,...)
ICRS coord. (ep=J2000) : 		19 58 35.32 +59 50 58.9 (Optical) [ ] D 2013MNRAS.436.1040S
FK4 coord. (ep=B1950 eq=1950) : 		19 57 41.33 +59 42 44.9 [ ]
Gal coord. (ep=J2000) : 		093.01660 +15.37793 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 247200 [~] / z(spectroscopic) 2.225 [~] / cz 667038 [~]
   D 2023MNRAS.520.4037M
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Hierarchy : number of linked objects
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CSWA 128 [SAB2013] SDSS J1958+5950

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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