2025agyg

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Information

Transient

Name: AT2025agyg
Right ascension: 2h34m21.08s
Declination: 32d30m29.93s
Discovery Date: Nov. 24, 2025, 6:33 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.085

Host

Name: NGC0973
Right ascension: 2h34m20.10s
Declination: 32d30m20.01s
Redshift: 0.015878
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 5.24
Transient MWEBV processed 0.09
Host match processed 4.14
Host information processed 0.11
Host MWEBV processed 0.05
Global aperture construction processed 1.0
Global aperture photometry processed 4.25
Validate global photometry processed 14.75
Global host SED inference processed 1383.04
Local aperture photometry processed 3.97
Validate local photometry processed 0.02
Local host SED inference processed 1329.19
 

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) = 2h34m21.08s, 32d30m29.93s
semi major axis, semi minor axis (arcsec) = 6.19, 6.19
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 5.3 2.18 22.089 0.446 AB
GALEX_NUV 3.74 1.53 22.467 0.445 AB
PanSTARRS_g 638.48 2.22 16.887 0.004 AB
PanSTARRS_r 1379.19 4.48 16.051 0.004 AB
PanSTARRS_i 2638.73 6.63 15.347 0.003 AB
PanSTARRS_z 3814.54 8.25 14.946 0.002 AB
PanSTARRS_y 5568.39 13.06 14.536 0.003 AB
2MASS_J 8688.71 118.83 13.158 0.015 Vega
2MASS_H 12543.5 184.07 12.286 0.016 Vega
2MASS_K 11714.06 207.6 11.890 0.019 Vega
WISE_W1 2912.92 152.27 12.540 0.057 Vega

Aperture details

RA, DEC (J2000) = 2h34m20.33s, 32d30m17.78s
semi major axis, semi minor axis (arcsec) = 50.8, 11.37
angle (degrees, anti-clockwise from east) = -131.47

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 54.47 7.76 19.560 0.155 AB
GALEX_NUV 79.08 6.59 19.155 0.091 AB
PanSTARRS_r 17329.89 15.52 13.303 0.001 AB
PanSTARRS_i 32156.85 22.9 12.632 0.001 AB
PanSTARRS_z 46767.86 35.17 12.225 0.001 AB
PanSTARRS_y 66451.39 50.68 11.844 0.001 AB
2MASS_J 106630.71 464.8 10.435 0.005 Vega
2MASS_H 161063.6 721.8 9.515 0.005 Vega
2MASS_K 154689.65 815.57 9.089 0.006 Vega
WISE_W1 97790.79 760.86 8.725 0.008 Vega
WISE_W2 76654.22 482.05 8.350 0.007 Vega
WISE_W3 90333.43 1070.22 6.336 0.013 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})\, 9.850 9.939 10.033
{\rm log}_{10}({\rm SFR}) -1.161 -0.594 -0.043
{\rm log}_{10}({\rm sSFR}) -11.132 -10.547 -9.933
{\rm stellar\ age} 8.185 10.356 12.667

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.303 -0.069 0.079
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.424 -0.271 -0.099

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.687 0.915 1.190
\delta -0.856 -0.669 -0.460
\tau_1/\tau_2 0.400 0.832 1.264
Q_{PAH} 0.091 0.308 0.764
U_{min} 2.429 7.534 14.652
{\rm log}_{10}(\gamma_e)\, -3.636 -3.079 -1.428

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -0.999 -0.752 -0.543
{\rm log}_{10}(\tau_{AGN})\, 1.742 1.958 2.091

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.106 -0.594 -0.227
0.03-0.10 Gyr -1.679 -0.686 0.033
0.10-0.33 Gyr -2.665 -1.363 -0.740
0.33-1.10 Gyr -3.382 -1.653 -0.974
1.10-3.67 Gyr -3.243 -1.563 -0.712
3.67-12.19 Gyr -1.419 -0.163 0.102
12.19-13.55 Gyr 0.010 0.759 1.125

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.213 11.267 11.355
{\rm log}_{10}({\rm SFR}) -0.402 -0.098 0.182
{\rm log}_{10}({\rm sSFR}) -11.703 -11.379 -11.083
{\rm stellar\ age} 8.149 10.107 12.673

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.063 0.099 0.168
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.519 -0.668 0.161

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.123 1.253 1.403
\delta 0.113 0.231 0.334
\tau_1/\tau_2 0.318 0.739 1.171
Q_{PAH} 0.036 0.125 0.270
U_{min} 3.388 7.404 14.396
{\rm log}_{10}(\gamma_e)\, -3.557 -2.825 -1.887

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.473 -1.371 -1.267
{\rm log}_{10}(\tau_{AGN})\, 0.852 1.013 1.192

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.668 -0.083 0.247
0.03-0.10 Gyr -0.894 -0.159 0.237
0.10-0.33 Gyr -1.112 -0.213 0.289
0.33-1.10 Gyr -1.316 -0.339 0.225
1.10-3.67 Gyr -1.151 -0.054 0.645
3.67-12.19 Gyr -0.035 1.256 1.475
12.19-13.55 Gyr 1.231 2.038 2.445