2025ahzi

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Information

Transient

Name: AT2025ahzi
Right ascension: 8h18m24.75s
Declination: 13d27m17.64s
Discovery Date: Dec. 17, 2025, 11:09 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.025

Host

Name:
Right ascension: 8h18m24.75s
Declination: 13d27m17.70s
Redshift: None
Photometric Redshift: 0.143

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	18.75
Transient MWEBV	processed	0.04
Host match	processed	5.54
Host information	processed	0.16
Host MWEBV	processed	0.05
Global aperture construction	processed	0.63
Global aperture photometry	processed	9.64
Validate global photometry	processed	19.15
Global host SED inference	processed	424.22
Local aperture photometry	processed	7.15
Validate local photometry	no valid phot	0.03
Local host SED inference	not processed	None

Cutout Download Report

2MASS_H: 2MASS_J: 2MASS_K: WISE_W1: WISE_W2: WISE_W3: WISE_W4: GALEX_NUV: GALEX_FUV: PanSTARRS_g: PanSTARRS_r: PanSTARRS_i: PanSTARRS_z: PanSTARRS_y: SDSS_i: SDSS_r: SDSS_u: SDSS_z: SDSS_g: DES_g: DES_r: DES_i: DES_z: DES_Y:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 8h18m24.75s, 13d27m17.64s
semi major axis, semi minor axis (arcsec) = 0.8, 0.8
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 8h18m24.74s, 13d27m17.87s
semi major axis, semi minor axis (arcsec) = 4.27, 3.56
angle (degrees, anti-clockwise from east) = -134.33

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	0.27	0.34	25.316	1.375	AB
GALEX_NUV	1.11	0.43	23.789	0.426	AB
SDSS_u	13.54	3.31	21.071	0.266	AB
SDSS_g	39.27	2.21	19.915	0.061	AB
DES_g	44.51	0.66	19.779	0.016	AB
PanSTARRS_g	45.65	0.85	19.751	0.020	AB
SDSS_r	97.48	3.16	18.928	0.035	AB
PanSTARRS_r	92.05	0.9	18.990	0.011	AB
DES_r	104.38	1.38	18.854	0.014	AB
SDSS_i	138.02	4.88	18.550	0.038	AB
PanSTARRS_i	134.61	1.03	18.577	0.008	AB
PanSTARRS_z	172.09	2.34	18.311	0.015	AB
SDSS_z	166.77	13.75	18.345	0.090	AB
DES_z	182.08	4.75	18.249	0.028	AB
PanSTARRS_y	179.39	5.72	18.265	0.035	AB
2MASS_J	213.4	86.67	17.182	0.441	Vega
2MASS_H	253.03	147.11	16.524	0.631	Vega
2MASS_K	421.56	154.38	15.500	0.398	Vega
WISE_W1	104.7	10.47	16.151	0.109	Vega
WISE_W2	73.37	14.06	15.897	0.208	Vega
WISE_W3	36.07	66.7	14.833	2.008	Vega
WISE_W4	-427.91	504.67			Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.100	10.224	10.339
{\rm log}_{10}({\rm SFR})	-2.033	-0.744	-0.024
{\rm log}_{10}({\rm sSFR})	-12.306	-10.943	-10.199
{\rm stellar\ age}	5.369	7.003	10.019

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.414	-1.005	-0.661
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.576	-0.741	0.096

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.263	0.444	0.617
\delta	-0.764	-0.463	-0.127
\tau_1/\tau_2	0.564	0.942	1.354
Q_{PAH}	1.125	2.948	4.926
U_{min}	3.428	9.447	16.887
{\rm log}_{10}(\gamma_e)\,	-2.189	-1.018	-0.283

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.116	-2.499	-1.182
{\rm log}_{10}(\tau_{AGN})\,	1.122	1.633	1.966

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.760	-0.922	-0.305
0.03-0.10 Gyr	-2.516	-0.769	0.066
0.10-0.32 Gyr	-2.450	-0.563	0.141
0.32-1.04 Gyr	-2.698	-0.534	0.173
1.04-3.34 Gyr	-1.757	0.016	0.433
3.34-10.75 Gyr	-0.732	0.339	0.532
10.75-11.94 Gyr	-0.457	0.447	1.374