# LRDW J141910.88+524719.8 — Cerin Amroth Source: https://cerinamroth.com/jwst/lrds/dr1/j141910.88+524719.8/ [Home](https://cerinamroth.com/) › [JWST](https://cerinamroth.com/jwst/) › [Little red dots](https://cerinamroth.com/jwst/lrds/) › [LRD Watch DR1](https://cerinamroth.com/jwst/lrds/dr1/) › LRDW J141910.88+524719.8 LRD Watch DR1 · catalog object # LRDW J141910.88+524719.8 catalogSILVERmain classBH* channelEGS (CEERS NIRSpec P4) RA 14:19:10.889 214.7953719° Dec +52:47:19.82 52.7888386° [SIMBAD within 2″](https://simbad.cds.unistra.fr/simbad/sim-coo?Coord=214.795372++52.788839&Radius=2&Radius.unit=arcsec) · [ESASky](https://sky.esa.int/esasky/?target=214.795372%20+52.788839&fov=0.02&sci=true) ## Images F115W image, 3.2 arcsec across, north up F115W0.03″ px F150W image, 3.2 arcsec across, north up F150W0.03″ px F200W image, 3.2 arcsec across, north up F200W0.03″ px F356W image, 3.2 arcsec across, north up F356W0.06″ px F410M image, 3.2 arcsec across, north up F410M0.06″ px F444W image, 3.2 arcsec across, north up F444W0.06″ px 3.2″ across, north up, east left, resampled from the deepest mosaic covering the object in each band; ticks mark the catalogue position. Each band is stretched on its own noise; the composite shares one flux scale, so its colour is real. No coverage in F090W, F277W. ## Spectral energy distribution - NIRCam wide - NIRCam medium - 2σ upper limit (S/N < 2) Aperture fluxes in a 0.16″-radius circle, not corrected to total; the values are in the photometry table below. The gold line marks the Balmer limit (3646 Å rest) at z = 5.285. ## At a glance TierSILVER main class Found byBH* channel Redshift5.285 DJA grade 3, PRISM Spectral shapeinconclusive de Graaff+25 criteria F444W23.69 AB S/N 291, 0.16″ aperture F277W − F444Wnot in the colour lane BH* share0.85 bhs_bb4200_b4; Δχ² galaxy 21.4, dwarf −18.4 Compactnessgrowth ratio 1.718 stars 2.285 Balmer breaknot measured Image vettinghalf-stack pass; no flags raised Literature6 catalogue(s), 7 AGN paper(s) within 0.024″ ## Vetting - Image vettingpassed - Half-stack testpass - Artifact risknone - Neighbournone - Extendedno - BH* channeldwarf grid fits better (dchi2_bd=-18.4) but z_spec confirms ## Redshifts Each redshift keeps its own column. Photometric redshifts of little red dots are unreliable: against spectra, about a third of AGN-template redshifts (`z_agn`; 31 of 95 in the last purity run) and about half of galaxy-template redshifts at z > 3 were catastrophic outliers (methods Section 8). | Column | What it is | z | Source | `z_spec` | Spectroscopic, DJA grade 3 | 5.2845 | rubies-egs53-v4_prism-clear_4233_42046.spec.fits | `z_vet` | Adopted by vetting | 5.2845 | zspec:dja_specz_grade3.csv:42046 | `z_phot` | Photometric (P(z) peak) | 5.234 | 68%: 4.333–5.564 | `z_bhs` | BH* channel fit | 5.310 | bhs_bb4200_b4 | `z_agn` | Colour-lane fit | — | — ## Spectral checks V-shape (spectrum)inconclusive Star (spectrum)no V-shape (photometry)not measurable βUV not measured, βopt not measured at z_agn Line in F410MHa 0 line-free optical band(s) Line-ambiguousyes Settling verdictinconclusive ## Literature Published objects within 1″ of this position. A match is a positional recovery, not an adopted classification. - Barro et al. (2025) - de Graaff et al. (2025) - Kocevski et al. (2024) - Kokorev et al. (2024) - Matthee et al. (2026) - Weibel et al. (2026), BH*-dominated sample - Baccus+2026 (DJA census) broad-line AGN - Hviding+2025 broad-line AGN - Jones+2025 broad-line AGN - Rusakov+2026 broad-line AGN - Scholtz+2026 (LRD/LBD BLR) broad-line AGN - Taylor+2025 (CEERS/RUBIES) broad-line AGN - Yanagisawa+2026 (ATLAS I) broad-line AGN ## Photometry Circular aperture of radius 0.16″ at each band's native resolution, background from a 0.40–0.65″ annulus, programmes combined by inverse variance. For a point source multiply by the field's aperture correction (r = 0.16″ → 0.70″). Grey rows are below S/N 2. | Band | Instrument | Pivot (µm) | f (nJy) | σ (nJy) | AB mag | S/N | Ap. corr. | F115W | NIRCam wide | 1.154 | 28.64 | 3.65 | 27.76 | 7.8 | 1.36 | F150W | NIRCam wide | 1.501 | 41.94 | 3.17 | 27.34 | 13.2 | 1.38 | F200W | NIRCam wide | 1.989 | 63.99 | 2.74 | 26.89 | 23.3 | 1.40 | F356W | NIRCam wide | 3.568 | 459.75 | 2.79 | 24.74 | 164.7 | 1.51 | F410M | NIRCam medium | 4.082 | 1900.36 | 7.74 | 23.20 | 245.5 | 1.56 | F444W | NIRCam wide | 4.404 | 1211.28 | 4.17 | 23.69 | 290.8 | 1.60 ## Provenance FieldEGS (CEERS NIRSpec P4) (`ceersnirspecp4mrmsata`) Programmes`01345` behind every mosaic the field measured Pipeline rows merged1 all at one position Detection passoriginal Release build`33af9933d1cc` 2026-10-17T14:29:44Z ## Image sources | Band | Mosaic | Native pixel | Coverage | F115W | `jw01345-o061_t043_nircam_clear-f115w_i2d.fits` | 0.031″ | 1.00 | F150W | `jw01345-o061_t043_nircam_clear-f150w_i2d.fits` | 0.031″ | 1.00 | F200W | `jw01345-o061_t043_nircam_clear-f200w_i2d.fits` | 0.031″ | 1.00 | F356W | `jw01345-o061_t043_nircam_clear-f356w_i2d.fits` | 0.063″ | 1.00 | F410M | `jw01345-o061_t043_nircam_clear-f410m_i2d.fits` | 0.063″ | 1.00 | F444W | `jw01345-o061_t043_nircam_clear-f444w_i2d.fits` | 0.063″ | 1.00 ## Cite Anderson, Jordan (2026). LRD Watch DR1: little red dot candidates from an independent search of public JWST imaging (Version DR1) [Data set]. Cerin Amroth Research. Zenodo. https://doi.org/10.5281/zenodo.23062632 Object LRDW J141910.88+524719.8. CC BY 4.0. Please also acknowledge the JWST programmes that took the data. LRD Watch DR1 is a vetted candidate catalogue, not a complete census: it has no selection function and cannot on its own give number densities. [About the release](https://cerinamroth.com/jwst/lrds/dr1/). [← LRDW J141910.66+525014.6](https://cerinamroth.com/jwst/lrds/dr1/j141910.66+525014.6/)[LRDW J141911.40+524907.4 →](https://cerinamroth.com/jwst/lrds/dr1/j141911.40+524907.4/)