Lens system 2MASX J01414232-0735281
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Official lens system 2MASX J01414232-0735281 (SNL-2 in paper), can you spot it? 😄
Central galaxy at z = 0.051 and lensed galaxy at z = 1.97
I can't really spot it but might the faint blueish / magenta area in SDSS below nucleus have anything to do with the lensing? There are several spots indicated in the paper.
Excerpt:
J0141423–073528 (2MASX J01414232–0735281, SNL-2)
This is our second newly-discovered lens system (Figure 2, row 3). SNL-2, with zlens = 0.052, is part of a galaxy pair (Figure 3); the companion galaxy is ∼1 mag fainter, located 7 arcsec to the North. SDSS imaging shows that the pair is embedded in a common, asymmetric stellar halo, indicating the galaxies are at a common distance and suggesting a recent or ongoing tidal interaction. SNL- 2 itself appears very regular; its effective radius (6.0 kpc) is com- parable to SNL-0, and its total luminosity is only slightly smaller (3×1011L⊙). The 6dF spectrum is consistent with a pure passive stellar continuum (Figure 4), but the Hα/[NII] region is contam- inated by telluric absorption so we cannot rule out weak nebular emission as securely as for SNL-0 and SNL-1.
By chance, two separate SNELLS observations were obtained
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for SNL-2, so we combine the data to improve total depth . The H-band observation reveals emission in two lines consistent with the [O III] 4959, 5007 A ̊ doublet, at a redshift of z = 1.97. (The observer’s-frame wavelength is ∼1.48 μm, placing the lines at the short-wavelength edge of the H band, in a region of poor atmo- spheric transmission.) The lines are noticeably broad, with FWHM ∼550kms−1. The emission is concentrated in a bright source at 3.2 arcsec from the galaxy centre, with a fainter second image at radius 1.2arcsec diametrically opposite. The 4959-A ̊ line is not clearly seen in the fainter image, but we consider the concordant 5007-A ̊ line, and the symmetric configuration, sufficient to confirm this as a lensed counter-image. No counterpart to the emission-line source is visible in the SDSS imaging.From The SINFONI Nearby Elliptical Lens Locator Survey: Discovery of two new low-redshift strong lenses and implications for the initial mass function in giant early-type galaxies.
Russell J. Smith (Durham), John R. Lucey (Durham), Charlie Conroy (Harvard)
https://arxiv.org/abs/1503.02661
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Budgieye
moderator
Squint. Maybe a hint of blue just below nucleus? Probably my imagination.
Could you post this in https://talk.spacewarps.org/#/recent , it would be good to keep that project alive.
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Ghost_Sheep_SWR
in response to Budgieye's comment.
Sure, posted in Spacewarps, doesn't look really alive to me though.
I'm guessing the lensed images are also difficult to see because they are not really arcs but more point-like objects too small for SDSS resolution.
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