LRD Watch DR1 · catalog object
LRDW J142541.58+563244.1
Images







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, F410M.
Spectral energy distribution
- NIRCam wide
- 2σ upper limit (S/N < 2)
At a glance
- Tier
- TENTATIVE
- Found by
- BH* channel
- Redshift
- 4.16 BH* fit
- Spectral shape
- no labelled spectrum
- F444W
- 25.75 AB S/N 68, 0.16″ aperture
- F277W − F444W
- not in the colour lane
- BH* share
- 0.96 cliff_degraaff25; Δχ² galaxy 1.9, dwarf 70.3
- Compactness
- growth ratio 1.584 stars 2.076
- Balmer break
- 10.42 ± 4.48 F277W/F150W, red:Hb+OIII
- Image vetting
- half-stack no-coverage; no flags raised
- Literature
- 1 catalogue(s), 0 AGN paper(s) within 0.004″
Vetting
- Image vettingnot applicable
- Half-stack testno-coverage
- Artifact risknone
- Neighbournone
- Extendedno
- BH* channelevidence dchi2_gal=1.9 dchi2_bd=70.3
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 | — | — |
z_vet | Adopted by vetting | 4.1640 | bhstar:cliff_degraaff25 |
z_phot | Photometric (P(z) peak) | — | not fitted |
z_bhs | BH* channel fit | 4.164 | cliff_degraaff25 |
z_agn | Colour-lane fit | — | — |
Spectral checks
- V-shape (spectrum)
- no labelled spectrum
- Star (spectrum)
- no spectrum
- V-shape (photometry)
- not measurable βUV not measured, βopt not measured at z_agn
- Line in F410M
- none 0 line-free optical band(s)
- Line-ambiguous
- no
- Settling verdict
- not evaluated
Literature
Published objects within 1″ of this position. A match is a positional recovery, not an adopted classification.
- Weibel et al. (2026), BH*-dominated sample
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 | 11.48 | 5.03 | 28.75 | 2.3 | 1.27 |
| F150W | NIRCam wide | 1.501 | 9.22 | 3.96 | 28.99 | 2.3 | 1.29 |
| F200W | NIRCam wide | 1.989 | 23.21 | 3.35 | 27.99 | 6.9 | 1.30 |
| F277W | NIRCam wide | 2.762 | 96.02 | 1.95 | 26.44 | 49.1 | 1.40 |
| F356W | NIRCam wide | 3.568 | 190.77 | 1.91 | 25.70 | 99.8 | 1.47 |
| F444W | NIRCam wide | 4.404 | 182.49 | 2.69 | 25.75 | 67.8 | 1.51 |
Provenance
- Field
- PANORAMIC J142536+5630 (
panoramicj142536p5630) - Programmes
02514behind every mosaic the field measured- Pipeline rows merged
- 1 all at one position
- Detection pass
- original
- Release build
33af9933d1cc2026-10-17T14:29:44Z
Image sources
| Band | Mosaic | Native pixel | Coverage |
|---|---|---|---|
| F115W | panoramic-j142536p5630-grizli-v7.2-f115w-clear_drc_sci.fits | 0.020″ | 1.00 |
| F150W | panoramic-j142536p5630-grizli-v7.2-f150w-clear_drc_sci.fits | 0.020″ | 1.00 |
| F200W | panoramic-j142536p5630-grizli-v7.2-f200w-clear_drc_sci.fits | 0.020″ | 1.00 |
| F277W | panoramic-j142536p5630-grizli-v7.2-f277w-clear_drc_sci.fits | 0.040″ | 1.00 |
| F356W | panoramic-j142536p5630-grizli-v7.2-f356w-clear_drc_sci.fits | 0.040″ | 1.00 |
| F444W | panoramic-j142536p5630-grizli-v7.2-f444w-clear_drc_sci.fits | 0.040″ | 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 J142541.58+563244.1.
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.