2025ggb

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Information

Transient

Name: AT2025ggb
Right ascension: 19h00m46.72s
Declination: 63d01m37.74s
Discovery Date: March 30, 2025, 12:03 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.045

Host

Name: 2025ggb
Right ascension: 19h00m47.70s
Declination: 63d01m37.27s
Redshift: None
Photometric Redshift: 0.185
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.55
Cutout download processed 15.1
Global aperture construction processed 0.7
Local aperture photometry processed 5.71
Global aperture photometry processed 5.93
Validate local photometry no valid phot 0.02
Validate global photometry processed 17.29
Host information processed 0.09
Global host SED inference processed 401.9
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.04
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) = 19h00m46.72s, 63d01m37.74s
semi major axis, semi minor axis (arcsec) = 0.64, 0.64
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) = 19h00m47.68s, 63d01m37.17s
semi major axis, semi minor axis (arcsec) = 6.0, 4.43
angle (degrees, anti-clockwise from east) = -172.43

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 7.08 2.1 21.775 0.322 AB
GALEX_NUV 11.17 1.9 21.280 0.185 AB
SDSS_u 18.76 3.97 20.717 0.230 AB
SDSS_g 69.88 2.52 19.289 0.039 AB
PanSTARRS_g 66.34 1.2 19.346 0.020 AB
SDSS_r 117.98 3.44 18.720 0.032 AB
PanSTARRS_r 118.91 1.47 18.712 0.013 AB
SDSS_i 163.01 4.5 18.369 0.030 AB
PanSTARRS_i 168.54 1.37 18.333 0.009 AB
PanSTARRS_z 192.98 3.8 18.186 0.021 AB
SDSS_z 210.12 12.96 18.094 0.067 AB
PanSTARRS_y 196.42 9.4 18.167 0.052 AB
2MASS_J 258.63 155.61 16.973 0.653 Vega
2MASS_H -43.74 243.2 Vega
2MASS_K 84.01 271.01 17.251 3.502 Vega
WISE_W1 121.69 8.9 15.988 0.079 Vega
WISE_W2 91.66 12.77 15.656 0.151 Vega
WISE_W3 230.26 35.37 12.820 0.167 Vega
WISE_W4 461.85 236.27 10.619 0.555 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})\, 10.308 10.398 10.502
{\rm log}_{10}({\rm SFR}) -0.052 0.310 0.661
{\rm log}_{10}({\rm sSFR}) -10.451 -10.074 -9.698
{\rm stellar\ age} 4.905 5.958 7.219

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.523 -1.099 -0.744
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.042 0.172 0.376

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.203 0.335 0.502
\delta -0.357 -0.031 0.197
\tau_1/\tau_2 0.629 0.967 1.298
Q_{PAH} 0.490 1.382 2.753
U_{min} 2.759 7.590 14.343
{\rm log}_{10}(\gamma_e)\, -3.038 -2.099 -0.872

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.253 -3.005 -1.883
{\rm log}_{10}(\tau_{AGN})\, 0.991 1.449 1.886

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.662 -0.131 0.129
0.03-0.10 Gyr -0.026 0.413 0.799
0.10-0.32 Gyr 0.270 0.635 0.899
0.32-1.02 Gyr -0.115 0.452 0.720
1.02-3.24 Gyr 0.009 0.459 0.684
3.24-10.32 Gyr 0.228 0.524 0.697
10.32-11.46 Gyr -0.049 0.551 1.136