2025gda

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Information

Transient

Name: AT2025gda
Right ascension: 8h34m35.27s
Declination: -19d28m31.70s
Discovery Date: March 28, 2025, 3:12 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.076

Host

Name: 2025gda
Right ascension: 8h34m35.53s
Declination: -19d28m31.38s
Redshift: None
Photometric Redshift: 0.124
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.58
Cutout download processed 4.24
Global aperture construction processed 0.71
Local aperture photometry processed 4.15
Global aperture photometry processed 4.38
Validate local photometry no valid phot 0.02
Validate global photometry processed 12.57
Host information processed 0.08
Global host SED inference processed 467.95
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.05
Log transient processing status blocked 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) = 8h34m35.27s, -19d28m31.70s
semi major axis, semi minor axis (arcsec) = 0.9, 0.9
angle (degrees, anti-clockwise from east) = 0.0

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

Aperture details

RA, DEC (J2000) = 8h34m35.52s, -19d28m31.12s
semi major axis, semi minor axis (arcsec) = 6.72, 4.88
angle (degrees, anti-clockwise from east) = -26.88

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 14.31 3.71 21.011 0.281 AB
GALEX_NUV 10.33 2.86 21.365 0.301 AB
PanSTARRS_g 298.74 1.8 17.712 0.007 AB
PanSTARRS_r 653.83 2.44 16.861 0.004 AB
PanSTARRS_i 923.86 2.15 16.486 0.003 AB
PanSTARRS_z 1195.96 5.16 16.206 0.005 AB
PanSTARRS_y 1472.23 12.84 15.980 0.009 AB
2MASS_J 1768.45 169.41 14.886 0.104 Vega
2MASS_H 2575.93 264.05 14.005 0.111 Vega
2MASS_K 1785.83 328.39 13.933 0.200 Vega
WISE_W1 854.54 25.19 13.872 0.032 Vega
WISE_W2 520.09 22.6 13.771 0.047 Vega
WISE_W3 331.89 57.69 12.424 0.189 Vega
WISE_W4 507.74 429.01 10.516 0.917 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.977 11.010 11.097
{\rm log}_{10}({\rm SFR}) -0.545 -0.239 0.045
{\rm log}_{10}({\rm sSFR}) -11.576 -11.241 -10.954
{\rm stellar\ age} 7.333 8.134 10.898

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.598 -0.492 -0.405
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.448 -0.482 0.204

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.022 0.052 0.097
\delta -0.889 -0.639 -0.294
\tau_1/\tau_2 0.610 0.994 1.392
Q_{PAH} 0.675 1.969 3.955
U_{min} 2.934 8.319 15.894
{\rm log}_{10}(\gamma_e)\, -2.132 -0.992 -0.353

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.492 -3.394 -2.384
{\rm log}_{10}(\tau_{AGN})\, 1.152 1.666 1.988

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.648 -0.318 -0.108
0.03-0.10 Gyr -0.789 -0.217 0.149
0.10-0.32 Gyr -1.011 -0.295 0.122
0.32-1.05 Gyr -1.239 -0.370 0.082
1.05-3.39 Gyr -0.980 -0.037 0.523
3.39-10.95 Gyr 0.500 1.210 1.302
10.95-12.17 Gyr 1.007 1.558 2.205