LRD Watch DR1 · candidate
LRDW J033227.96-274824.5
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.
Spectral energy distribution
- NIRCam wide
- NIRCam medium
- MIRI
- 2σ upper limit (S/N < 2)
At a glance
- Tier
- SILVER z < 3 BH* class
- Found by
- BH* channel
- Redshift
- 2.06 BH* fit
- Spectral shape
- no labelled spectrum
- F444W
- 22.24 AB S/N 677, 0.16″ aperture
- F277W − F444W
- not in the colour lane
- BH* share
- 0.88 mom_naidu25; Δχ² galaxy 62.0, dwarf 77.8
- Compactness
- growth ratio 2.319 stars 2.339
- Balmer break
- 12.02 ± 0.23 F150W/F090W, red:Hb+OIII
- Image vetting
- half-stack pass; no flags raised
- Literature
- no published match within 1″
Vetting
- Image vettingpassed
- Half-stack testpass
- Artifact risknone
- Neighbournone
- Extendedno
- No vetting notes.
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 | 2.0556 | bhstar:mom_naidu25 (zpub 2.2252 noted) |
z_phot | Photometric (P(z) peak) | — | not fitted |
z_bhs | BH* channel fit | 2.056 | mom_naidu25 |
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.
- No published JWST little red dot or broad-line AGN within 1″.
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. |
|---|---|---|---|---|---|---|---|
| F090W | NIRCam wide | 0.902 | 199.00 | 3.82 | 25.65 | 52.1 | 1.33–1.38 |
| F115W | NIRCam wide | 1.154 | 591.22 | 3.62 | 24.47 | 163.2 | 1.35–1.38 |
| F150W | NIRCam wide | 1.501 | 2392.30 | 6.72 | 22.95 | 356.0 | 1.33–1.36 |
| F200W | NIRCam wide | 1.989 | 3393.21 | 7.50 | 22.57 | 452.5 | 1.34–1.36 |
| F277W | NIRCam wide | 2.762 | 3827.14 | 7.70 | 22.44 | 496.8 | 1.46–1.47 |
| F335M | NIRCam medium | 3.362 | 4377.52 | 13.28 | 22.30 | 329.6 | 1.52–1.53 |
| F356W | NIRCam wide | 3.568 | 4369.88 | 7.57 | 22.30 | 577.6 | 1.53–1.54 |
| F410M | NIRCam medium | 4.082 | 4605.88 | 11.41 | 22.24 | 403.7 | 1.55–1.57 |
| F444W | NIRCam wide | 4.404 | 4628.86 | 6.84 | 22.24 | 676.9 | 1.59–1.60 |
| F1800W | MIRI | 17.970 | 378.35 | 104.41 | 24.95 | 3.6 | — |
| F2100W | MIRI | 20.801 | 319.23 | 196.53 | 25.14 | 1.6 | — |
| F2550W | MIRI | 25.230 | 522.83 | 1025.04 | 24.60 | 0.5 | — |
Provenance
- Field
- GOODS-S (JADES Medium pointing 1); GOODS-S (JADES Medium pointing 5) (
meds0001,meds0005) - Programmes
01180, 01207behind every mosaic the field measured- Pipeline rows merged
- 2 largest separation 0.068″
- Detection pass
- original
- Release build
33af9933d1cc2026-10-17T14:29:44Z
Image sources
| Band | Mosaic | Native pixel | Coverage |
|---|---|---|---|
| F090W | jw01180-o223_t223_nircam_clear-f090w_i2d.fits | 0.031″ | 1.00 |
| F115W | jw01180-o223_t223_nircam_clear-f115w_i2d.fits | 0.031″ | 1.00 |
| F150W | jw01180-o223_t223_nircam_clear-f150w_i2d.fits | 0.031″ | 1.00 |
| F200W | jw01180-o223_t223_nircam_clear-f200w_i2d.fits | 0.031″ | 1.00 |
| F277W | jw01180-o223_t223_nircam_clear-f277w_i2d.fits | 0.063″ | 1.00 |
| F356W | jw01180-o223_t223_nircam_clear-f356w_i2d.fits | 0.063″ | 1.00 |
| F410M | jw01180-o223_t223_nircam_clear-f410m_i2d.fits | 0.063″ | 1.00 |
| F444W | jw01180-o223_t223_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 J033227.96-274824.5.
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.