2025ggt

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Information

Transient

Name: AT2025ggt
Right ascension: 8h29m18.74s
Declination: 20d28m43.28s
Discovery Date: March 3, 2025, 9:36 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.031

Host

Name: 2025ggt
Right ascension: 8h29m18.72s
Declination: 20d28m42.98s
Redshift: None
Photometric Redshift: 0.181
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.09
Cutout download processed 20.6
Global aperture construction processed 0.75
Local aperture photometry processed 6.88
Global aperture photometry processed 6.98
Validate local photometry no valid phot 0.02
Validate global photometry processed 19.49
Host information processed 0.09
Global host SED inference processed 490.94
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.07
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) = 8h29m18.74s, 20d28m43.28s
semi major axis, semi minor axis (arcsec) = 0.66, 0.66
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) = 8h29m18.70s, 20d28m43.20s
semi major axis, semi minor axis (arcsec) = 3.76, 2.87
angle (degrees, anti-clockwise from east) = -26.68

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.35 1.19 23.575 0.956 AB
GALEX_NUV 2.22 1.96 23.035 0.957 AB
SDSS_u 1.43 2.75 23.512 2.085 AB
SDSS_g 31.86 1.81 20.142 0.062 AB
PanSTARRS_g 37.65 0.77 19.961 0.022 AB
SDSS_r 63.15 2.6 19.399 0.045 AB
PanSTARRS_r 68.42 0.8 19.312 0.013 AB
DES_r 76.54 1.04 19.190 0.015 AB
SDSS_i 89.65 3.35 19.019 0.041 AB
PanSTARRS_i 87.7 0.86 19.043 0.011 AB
PanSTARRS_z 110.0 2.0 18.797 0.020 AB
SDSS_z 91.82 9.88 18.993 0.117 AB
DES_z 119.28 2.01 18.709 0.018 AB
PanSTARRS_y 118.22 5.25 18.718 0.048 AB
2MASS_J 98.17 85.07 18.025 0.941 Vega
2MASS_H 184.61 146.57 16.867 0.862 Vega
2MASS_K 275.62 135.08 15.961 0.532 Vega
WISE_W1 39.1 9.61 17.221 0.267 Vega
WISE_W2 24.05 12.6 17.108 0.569 Vega
WISE_W3 -63.5 69.7 Vega
WISE_W4 -695.81 492.02 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})\, 9.892 10.035 10.149
{\rm log}_{10}({\rm SFR}) -1.655 -0.310 0.561
{\rm log}_{10}({\rm sSFR}) -11.725 -10.378 -9.439
{\rm stellar\ age} 2.834 5.210 6.651

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.437 -0.721 -0.308
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.558 -0.759 0.053

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.181 0.332 0.536
\delta -0.885 -0.636 -0.326
\tau_1/\tau_2 0.640 1.020 1.415
Q_{PAH} 1.483 3.385 5.493
U_{min} 3.133 8.981 16.754
{\rm log}_{10}(\gamma_e)\, -2.297 -1.163 -0.383

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.800 -1.363 -0.779
{\rm log}_{10}(\tau_{AGN})\, 1.206 1.576 1.860

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.016 -1.246 -0.509
0.03-0.10 Gyr -1.633 -0.189 0.718
0.10-0.32 Gyr -0.588 0.339 0.778
0.32-1.02 Gyr -0.323 0.316 0.707
1.02-3.25 Gyr -0.838 0.135 0.447
3.25-10.36 Gyr -0.803 0.059 0.316
10.36-11.52 Gyr -1.284 0.015 0.654