https://www.legacysurvey.org//viewer/?ra=220.0472&dec=-0.2914&layer=ls-dr10&zoom=12
I thought this galaxy looked kind of interesting, so I decided to look it up in [Simbad].(coord 220.0474d-0.2923d (ICRS, 2000, 2000), radius: 2 arcmin) It turns out that this galaxy made up of multiple galaxies, including H-ATLAS J144011.1-001719, which is described as “Gravitationally Lensed Image of a Galaxy”. Interesting.
The lens is at RA,Dec = 220.0828, -0.2585
https://www.legacysurvey.org//viewer/?ra=220.0828&dec=-0.2585&layer=hsc-dr3&zoom=16
Strange. Simbad showed H-ATLAS J144011.1-001719 overlapping the big galaxy. Is this an error?
I think it has something to do with the publication. I don’t know if that is an error. The nearest case I got is H-ATLAS J144019.9-001532 hosting the following publication:
2019A&A…627A…31G [ D ,1]
Astronomy and Astrophysics, volume 627A31-31 (2019/7-1)
SHALOS: Statistical Herschel-ATLAS lensed objects selection.
GONZALEZ-NUEVO J., SUAREZ GOMEZ S.L., BONAVERA L., SANCHEZ-LASHERAS F., ARGUESO F., TOFFOLATTI L., HERRANZ D., GONZALEZ-GUTIERREZ C., GARCIA RIESGO F. and DE COS JUEZ F.J.
<Available at CDS (J/A+A/627/A31): gn19-g09.dat gn19-g12.dat gn19-g15.dat gn19-ngp.dat>
In the abstract, it states that the lensing candidates are derived from SHALOS that uses many high-quality telescopes.
However with the case of H-ATLAS J144011.1-001719 I’d say it is indeed an error because I checked the HI-Res images and found out to be an error. Likely the main thing about searching for interesting objects using software recognition and AI, it might have encountered something spurious.