2025zgn

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Information

Transient

Name: AT2025zgn
Right ascension: 8h29m23.02s
Declination: 8d08m32.34s
Discovery Date: Sept. 23, 2025, 12:22 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.027

Host

Name:
Right ascension: 8h29m23.01s
Declination: 8d08m31.95s
Redshift: None
Photometric Redshift: 0.198
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.04
Transient MWEBV processed 0.04
Host match processed 5.14
Host information processed 0.15
Host MWEBV processed 0.05
Global aperture construction processed 2.83
Global aperture photometry processed 5.8
Validate global photometry processed 14.78
Global host SED inference processed 523.16
Local aperture photometry processed 5.81
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) = 8h29m23.02s, 8d08m32.34s
semi major axis, semi minor axis (arcsec) = 0.61, 0.61
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) = 8h29m23.00s, 8d08m32.10s
semi major axis, semi minor axis (arcsec) = 2.41, 2.37
angle (degrees, anti-clockwise from east) = -57.52

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 2.66 1.14 22.839 0.465 AB
GALEX_NUV 0.22 1.06 25.537 5.203 AB
SDSS_u 6.47 1.96 21.873 0.329 AB
SDSS_g 7.0 1.04 21.788 0.162 AB
DES_g 7.08 0.2 21.775 0.031 AB
PanSTARRS_g 6.36 0.55 21.891 0.094 AB
SDSS_r 8.84 1.46 21.534 0.180 AB
PanSTARRS_r 10.47 0.63 21.350 0.065 AB
SDSS_i 8.29 1.8 21.603 0.235 AB
PanSTARRS_i 11.0 0.75 21.296 0.074 AB
PanSTARRS_z 12.05 1.61 21.198 0.146 AB
SDSS_z 9.16 5.94 21.495 0.703 AB
DES_z 12.2 1.17 21.184 0.104 AB
PanSTARRS_y 14.27 3.35 21.014 0.255 AB
2MASS_J -76.07 109.08 Vega
2MASS_H 118.41 143.98 17.349 1.320 Vega
2MASS_K 189.5 183.95 16.368 1.054 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})\, 8.635 8.927 9.168
{\rm log}_{10}({\rm SFR}) -1.019 0.354 0.985
{\rm log}_{10}({\rm sSFR}) -9.987 -8.505 -7.926
{\rm stellar\ age} 0.079 0.335 3.111

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.743 -1.229 -0.180
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.541 -0.814 0.035

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.284 0.729 1.538
\delta -0.475 -0.063 0.220
\tau_1/\tau_2 0.521 1.046 1.547
Q_{PAH} 1.161 3.179 5.381
U_{min} 4.191 11.269 19.064
{\rm log}_{10}(\gamma_e)\, -3.039 -1.994 -0.909

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.216 -0.521 0.103
{\rm log}_{10}(\tau_{AGN})\, 0.974 1.325 1.688

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.210 -1.496 -0.550
0.03-0.10 Gyr -1.036 0.510 1.146
0.10-0.32 Gyr -2.433 -0.096 0.583
0.32-1.01 Gyr -4.418 -2.011 -0.424
1.01-3.21 Gyr -6.668 -3.476 -1.087
3.21-10.20 Gyr -7.804 -3.870 -1.411
10.20-11.33 Gyr -8.289 -3.746 -1.188