LRD Watch DR1 · catalog object
LRDW J033238.72-274415.5
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
- TENTATIVE
- Found by
- BH* channel
- Redshift
- 6.822 DJA grade 3, PRISM
- Spectral shape
- inconclusive de Graaff+25 criteria
- F444W
- 25.86 AB S/N 140, 0.16″ aperture
- F277W − F444W
- not in the colour lane
- BH* share
- 0.70 cliff_degraaff25; Δχ² galaxy 8.1, dwarf 41.3
- Compactness
- growth ratio 2.852 stars 2.345
- Balmer break
- 3.06 ± 0.16 F335M/F200W, blue:far-uv
- Image vetting
- half-stack pass; no flags raised
- Literature
- 5 catalogue(s), 0 AGN paper(s) within 0.085″
Vetting
- Image vettingnot applicable
- Half-stack testpass
- Artifact risknone
- Neighbournone
- Extendedno
- BH* channelevidence dchi2_gal=8.1 dchi2_bd=41.3
- BH* channelBH* share 0.70 below 0.8 (composite)
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 | 6.8215 | gds-dts-egami-09-v4_prism-clear_8060_219000.spec.fits |
z_vet | Adopted by vetting | 6.8215 | zspec:dja_specz_grade3.csv:219000 |
z_phot | Photometric (P(z) peak) | — | not fitted |
z_bhs | BH* channel fit | 6.790 | cliff_degraaff25 |
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 F410M
- OIII 1 line-free optical band(s)
- Line-ambiguous
- yes
- Settling verdict
- not evaluated
Literature
Published objects within 1″ of this position. A match is a positional recovery, not an adopted classification.
- Barro et al. (2026)
- Kocevski et al. (2024)
- Kokorev et al. (2024)
- Pérez-González et al. (2024)
- Rinaldi et al. (2024)
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 | 7.41 | 1.88 | 29.23 | 3.9 | 1.34 |
| F115W | NIRCam wide | 1.154 | 22.00 | 1.33 | 28.04 | 16.6 | 1.37 |
| F150W | NIRCam wide | 1.501 | 25.08 | 1.54 | 27.90 | 16.2 | 1.32 |
| F200W | NIRCam wide | 1.989 | 27.83 | 1.35 | 27.79 | 20.7 | 1.36 |
| F277W | NIRCam wide | 2.762 | 39.34 | 1.01 | 27.41 | 39.1 | 1.48 |
| F335M | NIRCam medium | 3.362 | 85.13 | 1.58 | 26.57 | 53.8 | 1.50 |
| F356W | NIRCam wide | 3.568 | 136.24 | 1.00 | 26.06 | 135.8 | 1.54 |
| F410M | NIRCam medium | 4.082 | 189.09 | 1.94 | 25.71 | 97.4 | 1.56 |
| F444W | NIRCam wide | 4.404 | 164.98 | 1.18 | 25.86 | 140.2 | 1.58 |
| F1800W | MIRI | 17.970 | 42.96 | 104.57 | 27.32 | 0.4 | — |
| F2100W | MIRI | 20.801 | −155.11 | 191.68 | — | −0.8 | — |
| F2550W | MIRI | 25.230 | −889.76 | 953.99 | — | −0.9 | — |
Provenance
- Field
- GOODS-S (JADES Deep pointing 4) (
pointingfour) - Programmes
01180, 01207behind 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 |
|---|---|---|---|
| F090W | jw01180-o018_t014_nircam_clear-f090w_i2d.fits | 0.031″ | 1.00 |
| F115W | jw01180-o018_t014_nircam_clear-f115w_i2d.fits | 0.031″ | 1.00 |
| F150W | jw01180-o018_t014_nircam_clear-f150w_i2d.fits | 0.031″ | 1.00 |
| F200W | jw01180-o018_t014_nircam_clear-f200w_i2d.fits | 0.031″ | 1.00 |
| F277W | jw01180-o018_t014_nircam_clear-f277w_i2d.fits | 0.063″ | 1.00 |
| F356W | jw01180-o018_t014_nircam_clear-f356w_i2d.fits | 0.063″ | 1.00 |
| F410M | jw01180-o018_t014_nircam_clear-f410m_i2d.fits | 0.063″ | 1.00 |
| F444W | jw01180-o018_t014_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 J033238.72-274415.5.
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.