2025ahen

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Information

Transient

Name: AT2025ahen
Right ascension: 6h56m16.13s
Declination: 42d42m39.62s
Discovery Date: Dec. 12, 2025, 6:20 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.095

Host

Name:
Right ascension: 6h56m16.12s
Declination: 42d42m37.17s
Redshift: None
Photometric Redshift: 0.082
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 4.35
Transient MWEBV processed 0.04
Host match processed 4.65
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 4.12
Validate global photometry processed 10.75
Global host SED inference processed 423.52
Local aperture photometry processed 3.78
Validate local photometry processed 0.02
Local host SED inference processed 427.62
 

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) = 6h56m16.13s, 42d42m39.62s
semi major axis, semi minor axis (arcsec) = 1.3, 1.3
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_r 68.29 0.45 19.314 0.007 AB
PanSTARRS_i 107.22 0.32 18.824 0.003 AB
PanSTARRS_z 130.66 1.05 18.610 0.009 AB
PanSTARRS_y 155.07 2.16 18.424 0.015 AB

Aperture details

RA, DEC (J2000) = 6h56m16.11s, 42d42m37.33s
semi major axis, semi minor axis (arcsec) = 9.8, 8.62
angle (degrees, anti-clockwise from east) = -112.94

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 510.5 2.02 17.130 0.004 AB
PanSTARRS_r 1008.63 3.02 16.391 0.003 AB
PanSTARRS_i 1527.33 2.16 15.940 0.002 AB
PanSTARRS_z 1819.22 7.27 15.750 0.004 AB
PanSTARRS_y 2270.69 15.21 15.510 0.007 AB
2MASS_J 3414.42 218.17 14.172 0.069 Vega
2MASS_H 4189.19 312.28 13.477 0.081 Vega
2MASS_K 4275.52 340.87 12.985 0.087 Vega
WISE_W1 1630.93 27.7 13.170 0.018 Vega
WISE_W2 984.63 31.95 13.078 0.035 Vega
WISE_W3 2439.04 120.71 10.258 0.054 Vega
WISE_W4 2161.01 698.27 8.943 0.351 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})\, 9.518 9.710 9.863
{\rm log}_{10}({\rm SFR}) -1.075 -0.586 -0.069
{\rm log}_{10}({\rm sSFR}) -10.867 -10.316 -9.671
{\rm stellar\ age} 5.258 7.245 9.618

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.492 -0.809 -0.313
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.425 -0.574 0.240

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.469 0.780 1.117
\delta -0.671 -0.290 0.056
\tau_1/\tau_2 0.648 1.025 1.387
Q_{PAH} 0.977 2.577 5.255
U_{min} 2.917 8.078 14.768
{\rm log}_{10}(\gamma_e)\, -2.954 -1.778 -0.636

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.546 -1.433 -0.567
{\rm log}_{10}(\tau_{AGN})\, 0.964 1.454 1.937

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.956 -0.536 -0.204
0.03-0.10 Gyr -1.424 -0.650 -0.006
0.10-0.33 Gyr -1.682 -0.711 -0.102
0.33-1.07 Gyr -1.801 -0.691 -0.138
1.07-3.49 Gyr -1.723 -0.507 -0.143
3.49-11.41 Gyr -0.810 -0.253 0.011
11.41-12.68 Gyr -0.818 -0.092 0.718

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.699 10.778 10.848
{\rm log}_{10}({\rm SFR}) -0.736 0.083 0.604
{\rm log}_{10}({\rm sSFR}) -11.526 -10.686 -10.130
{\rm stellar\ age} 6.142 7.168 8.273

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.494 -0.331 -0.214
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.292 -0.111 0.280

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.153 0.287 0.425
\delta -0.909 -0.682 -0.303
\tau_1/\tau_2 0.670 1.045 1.429
Q_{PAH} 0.825 1.985 4.769
U_{min} 2.163 6.495 13.416
{\rm log}_{10}(\gamma_e)\, -3.016 -1.966 -0.897

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.479 -3.579 -2.503
{\rm log}_{10}(\tau_{AGN})\, 1.053 1.566 1.930

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.461 0.080 0.428
0.03-0.10 Gyr -1.311 0.039 0.683
0.10-0.33 Gyr -1.117 0.241 0.783
0.33-1.07 Gyr -0.570 0.322 0.711
1.07-3.49 Gyr 0.272 0.711 0.990
3.49-11.41 Gyr 0.688 0.918 1.064
11.41-12.68 Gyr 0.333 0.943 1.453