2025ahol

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Information

Transient

Name: SN2025ahol
Right ascension: 7h42m43.94s
Declination: 18d19m39.40s
Discovery Date: Dec. 19, 2025, 1:03 a.m.
Classification: SN Ia
Redshift: 0.027949
MW E(B-V): 0.032

Host

Name: UGC03980
Right ascension: 7h42m43.94s
Declination: 18d19m36.06s
Redshift: 0.028119
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 11.02
Transient MWEBV processed 0.06
Host match processed 4.73
Host information processed 0.44
Host MWEBV processed 0.08
Global aperture construction processed 0.66
Global aperture photometry processed 6.47
Validate global photometry processed 3.55
Global host SED inference processed 380.56
Local aperture photometry processed 6.13
Validate local photometry processed 0.02
Local host SED inference processed 453.22
 

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) = 7h42m43.94s, 18d19m39.40s
semi major axis, semi minor axis (arcsec) = 3.55, 3.55
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 888.49 1.36 16.528 0.002 AB
PanSTARRS_g 939.18 1.14 16.468 0.001 AB
SDSS_r 1776.75 11.07 15.776 0.007 AB
PanSTARRS_r 1926.11 1.28 15.688 0.001 AB
DES_r 2056.58 4.66 15.617 0.002 AB
PanSTARRS_i 2936.85 2.0 15.230 0.001 AB
PanSTARRS_z 3809.78 2.99 14.948 0.001 AB
DES_z 4114.8 11.45 14.864 0.003 AB
PanSTARRS_y 4743.14 6.02 14.710 0.001 AB
2MASS_J 5766.86 76.17 13.603 0.014 Vega
2MASS_H 7446.97 133.06 12.852 0.019 Vega
2MASS_K 6919.75 123.9 12.462 0.019 Vega

Aperture details

RA, DEC (J2000) = 7h42m43.96s, 18d19m37.20s
semi major axis, semi minor axis (arcsec) = 44.5, 10.03
angle (degrees, anti-clockwise from east) = -161.91

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 171.75 3.29 18.313 0.021 AB
GALEX_NUV 284.87 2.77 17.763 0.011 AB
DES_g 3722.77 3.11 14.973 0.001 AB
PanSTARRS_g 4650.63 5.39 14.731 0.001 AB
SDSS_r 8161.1 25.52 14.121 0.003 AB
PanSTARRS_r 8507.81 5.93 14.075 0.001 AB
DES_r 7907.51 9.64 14.155 0.001 AB
PanSTARRS_i 12182.51 8.96 13.686 0.001 AB
PanSTARRS_z 15534.01 15.72 13.422 0.001 AB
DES_z 14958.8 22.94 13.463 0.002 AB
PanSTARRS_y 19610.17 34.83 13.169 0.002 AB
2MASS_J 25530.16 440.76 11.987 0.019 Vega
2MASS_H 32915.33 791.81 11.239 0.026 Vega
2MASS_K 30732.35 735.24 10.843 0.026 Vega
WISE_W1 15773.37 90.35 10.706 0.006 Vega
WISE_W2 9553.69 98.1 10.611 0.011 Vega
WISE_W3 28743.31 332.23 7.580 0.013 Vega
WISE_W4 31702.23 2065.7 6.027 0.071 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})\, 10.012 10.150 10.356
{\rm log}_{10}({\rm SFR}) -1.565 -0.286 0.241
{\rm log}_{10}({\rm sSFR}) -11.972 -10.576 -9.838
{\rm stellar\ age} 3.973 6.746 9.196

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.261 -0.652 -0.333
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.564 -0.533 0.158

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.747 1.156 1.421
\delta -0.538 -0.346 -0.027
\tau_1/\tau_2 0.578 0.968 1.330
Q_{PAH} 0.619 2.731 5.526
U_{min} 2.849 7.904 15.085
{\rm log}_{10}(\gamma_e)\, -3.106 -1.637 -0.721

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.488 -3.353 -1.055
{\rm log}_{10}(\tau_{AGN})\, 1.000 1.483 1.976

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.567 -0.300 0.101
0.03-0.10 Gyr -2.414 -0.386 0.302
0.10-0.33 Gyr -2.009 -0.160 0.585
0.33-1.10 Gyr -1.487 0.030 0.516
1.10-3.64 Gyr -0.890 0.182 0.505
3.64-12.04 Gyr -0.724 0.114 0.470
12.04-13.38 Gyr -0.735 0.228 1.022

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.830 10.884 10.967
{\rm log}_{10}({\rm SFR}) 0.327 0.645 0.973
{\rm log}_{10}({\rm sSFR}) -10.581 -10.232 -9.889
{\rm stellar\ age} 7.523 8.286 10.728

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.680 -0.403 -0.212
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.500 -0.166 0.323

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.627 0.785 0.974
\delta -0.026 0.106 0.244
\tau_1/\tau_2 0.579 0.938 1.296
Q_{PAH} 0.877 1.449 2.366
U_{min} 2.476 6.657 13.163
{\rm log}_{10}(\gamma_e)\, -3.303 -2.285 -1.813

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.455 -2.518 -1.958
{\rm log}_{10}(\tau_{AGN})\, 1.072 1.489 1.862

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.871 0.038 0.349
0.03-0.10 Gyr 0.376 0.762 1.121
0.10-0.33 Gyr -0.003 0.538 0.837
0.33-1.10 Gyr -0.348 0.220 0.514
1.10-3.64 Gyr -0.398 0.355 0.744
3.64-12.04 Gyr 0.664 1.014 1.129
12.04-13.38 Gyr 0.721 1.271 1.894