2025zjn

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Information

Transient

Name: AT2025zjn
Right ascension: 0h40m36.79s
Declination: -3d42m08.08s
Discovery Date: Oct. 1, 2025, 7:26 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.036

Host

Name:
Right ascension: 0h40m36.88s
Declination: -3d42m07.01s
Redshift: None
Photometric Redshift: 0.160

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	1.35
Transient MWEBV	processed	0.06
Host match	processed	5.28
Host information	processed	0.15
Host MWEBV	processed	0.03
Global aperture construction	processed	0.7
Global aperture photometry	processed	5.3
Validate global photometry	processed	14.84
Global host SED inference	processed	377.95
Local aperture photometry	processed	5.49
Validate local photometry	no valid phot	0.02
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) = 0h40m36.79s, -3d42m08.08s
semi major axis, semi minor axis (arcsec) = 0.72, 0.72
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) = 0h40m36.85s, -3d42m06.81s
semi major axis, semi minor axis (arcsec) = 6.78, 2.99
angle (degrees, anti-clockwise from east) = -104.13

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	5.95	0.67	21.963	0.122	AB
GALEX_NUV	9.36	0.61	21.471	0.071	AB
SDSS_u	27.5	3.65	20.302	0.144	AB
SDSS_g	69.89	2.95	19.289	0.046	AB
PanSTARRS_g	80.89	1.1	19.130	0.015	AB
SDSS_r	136.01	3.94	18.566	0.031	AB
PanSTARRS_r	136.98	0.95	18.558	0.008	AB
SDSS_i	198.2	5.24	18.157	0.029	AB
PanSTARRS_i	199.71	1.49	18.149	0.008	AB
PanSTARRS_z	225.65	2.67	18.016	0.013	AB
SDSS_z	191.99	14.62	18.192	0.083	AB
PanSTARRS_y	262.21	6.02	17.853	0.025	AB
2MASS_J	285.9	101.61	16.865	0.386	Vega
2MASS_H	321.22	152.51	16.265	0.515	Vega
2MASS_K	609.27	205.25	15.100	0.366	Vega
WISE_W1	203.1	11.48	15.432	0.061	Vega
WISE_W2	164.03	16.28	15.024	0.108	Vega
WISE_W3	596.32	74.35	11.787	0.135	Vega
WISE_W4	977.67	519.54	9.805	0.577	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})\,	10.204	10.288	10.359
{\rm log}_{10}({\rm SFR})	0.284	0.530	0.787
{\rm log}_{10}({\rm sSFR})	-10.033	-9.774	-9.487
{\rm stellar\ age}	4.336	5.571	6.545

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.602	-0.300	-0.108
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.245	0.231	0.389

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.245	0.374	0.582
\delta	-0.700	-0.392	-0.127
\tau_1/\tau_2	0.544	0.853	1.148
Q_{PAH}	0.588	1.492	2.959
U_{min}	2.153	6.525	13.519
{\rm log}_{10}(\gamma_e)\,	-3.109	-2.235	-1.307

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.193	-2.934	-1.800
{\rm log}_{10}(\tau_{AGN})\,	0.969	1.407	1.895

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.334	0.502	0.649
0.03-0.10 Gyr	0.187	0.545	0.865
0.10-0.32 Gyr	0.290	0.588	0.881
0.32-1.03 Gyr	0.229	0.542	0.790
1.03-3.30 Gyr	0.167	0.426	0.615
3.30-10.57 Gyr	0.113	0.368	0.528
10.57-11.74 Gyr	-0.120	0.380	0.785