2025xgg

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Information

Transient

Name: AT2025xgg
Right ascension: 21h54m22.17s
Declination: 24d55m24.08s
Discovery Date: July 21, 2025, 10:30 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.056

Host

Name:
Right ascension: 21h54m22.15s
Declination: 24d55m23.64s
Redshift: 0.080209
Photometric Redshift: 0.069
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 12.65
Transient MWEBV processed 0.09
Host match processed 7.11
Host information processed 0.13
Host MWEBV processed 0.05
Global aperture construction processed 0.69
Global aperture photometry processed 5.75
Validate global photometry processed 15.47
Global host SED inference processed 446.41
Local aperture photometry processed 6.26
Validate local photometry processed 0.02
Local host SED inference processed 564.02
 

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) = 21h54m22.17s, 24d55m24.08s
semi major axis, semi minor axis (arcsec) = 1.32, 1.32
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 86.4 0.42 19.059 0.005 AB
PanSTARRS_g 97.07 0.39 18.932 0.004 AB
PanSTARRS_r 210.74 0.43 18.091 0.002 AB
DES_r 239.22 0.98 17.953 0.004 AB
SDSS_i 445.63 5.59 17.278 0.014 AB
PanSTARRS_i 344.67 0.48 17.557 0.002 AB
PanSTARRS_z 485.44 1.14 17.185 0.003 AB
SDSS_z 645.45 7.88 16.875 0.013 AB
DES_z 520.4 4.16 17.109 0.009 AB
PanSTARRS_y 492.33 3.01 17.169 0.007 AB

Aperture details

RA, DEC (J2000) = 21h54m22.15s, 24d55m23.88s
semi major axis, semi minor axis (arcsec) = 7.61, 3.8
angle (degrees, anti-clockwise from east) = -152.65

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 278.12 4.61 17.789 0.018 AB
DES_g 255.51 0.76 17.881 0.003 AB
PanSTARRS_g 262.6 1.37 17.852 0.006 AB
PanSTARRS_r 579.06 1.32 16.993 0.002 AB
DES_r 626.15 1.63 16.908 0.003 AB
SDSS_i 1083.89 9.7 16.313 0.010 AB
PanSTARRS_i 876.52 1.62 16.543 0.002 AB
PanSTARRS_z 1166.18 4.17 16.233 0.004 AB
SDSS_z 1423.38 20.19 16.017 0.015 AB
DES_z 1247.26 6.56 16.160 0.006 AB
PanSTARRS_y 1388.73 11.93 16.043 0.009 AB
2MASS_J 1904.79 147.25 14.805 0.084 Vega
2MASS_H 3052.94 249.99 13.821 0.089 Vega
2MASS_K 2597.74 233.31 13.526 0.098 Vega
WISE_W1 1109.82 22.47 13.588 0.022 Vega
WISE_W2 723.66 25.44 13.412 0.038 Vega
WISE_W3 573.29 67.3 11.830 0.127 Vega
WISE_W4 80.21 388.86 12.519 5.264 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.275 10.389 10.504
{\rm log}_{10}({\rm SFR}) -1.557 -0.535 0.058
{\rm log}_{10}({\rm sSFR}) -12.005 -10.892 -10.292
{\rm stellar\ age} 7.100 8.363 11.875

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.675 -1.208 -0.780
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.899 -1.554 -0.179

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.759 1.064 1.285
\delta -0.587 -0.376 -0.139
\tau_1/\tau_2 0.531 0.939 1.355
Q_{PAH} 0.379 1.418 4.183
U_{min} 2.793 8.452 15.756
{\rm log}_{10}(\gamma_e)\, -3.220 -1.709 -0.673

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.433 -1.313 -0.392
{\rm log}_{10}(\tau_{AGN})\, 0.988 1.395 1.912

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.742 -0.549 -0.051
0.03-0.10 Gyr -2.462 -0.707 0.104
0.10-0.33 Gyr -2.773 -0.860 -0.020
0.33-1.07 Gyr -3.212 -0.915 -0.059
1.07-3.50 Gyr -2.740 -0.609 0.278
3.50-11.43 Gyr -0.952 0.407 0.636
11.43-12.70 Gyr 0.089 0.913 1.626

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.612 10.707 10.832
{\rm log}_{10}({\rm SFR}) -2.266 -0.643 0.093
{\rm log}_{10}({\rm sSFR}) -12.966 -11.324 -10.553
{\rm stellar\ age} 7.078 8.396 11.992

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.035 -0.666 -0.432
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.733 -0.521 0.333

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.392 0.582 0.801
\delta -0.646 -0.325 -0.068
\tau_1/\tau_2 0.499 0.881 1.285
Q_{PAH} 0.399 1.070 2.759
U_{min} 2.420 7.228 14.658
{\rm log}_{10}(\gamma_e)\, -3.499 -2.814 -1.728

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.066 -2.906 -2.023
{\rm log}_{10}(\tau_{AGN})\, 0.946 1.283 1.774

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.184 -0.427 0.113
0.03-0.10 Gyr -4.073 -1.043 0.087
0.10-0.33 Gyr -4.727 -1.250 -0.009
0.33-1.07 Gyr -4.544 -1.079 0.076
1.07-3.50 Gyr -3.070 -0.427 0.618
3.50-11.43 Gyr -1.097 0.713 0.958
11.43-12.70 Gyr 0.304 1.229 1.971