2025ahcd

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Information

Transient

Name: SN2025ahcd
Right ascension: 8h05m40.10s
Declination: 6d44m57.91s
Discovery Date: Dec. 12, 2025, 8:53 a.m.
Classification: SN Ia
Redshift: 0.094000
MW E(B-V): 0.022

Host

Name:
Right ascension: 8h05m40.13s
Declination: 6d44m57.84s
Redshift: None
Photometric Redshift: 0.100
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 1.21
Transient MWEBV processed 0.09
Host match processed 5.86
Host information processed 0.12
Host MWEBV processed 0.06
Global aperture construction processed 0.64
Global aperture photometry processed 7.03
Validate global photometry processed 17.63
Global host SED inference processed 502.91
Local aperture photometry processed 6.27
Validate local photometry processed 0.03
Local host SED inference processed 487.61
 

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) = 8h05m40.10s, 6d44m57.91s
semi major axis, semi minor axis (arcsec) = 1.15, 1.15
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 104.37 0.82 18.854 0.008 AB
PanSTARRS_i 142.76 0.35 18.514 0.003 AB
PanSTARRS_z 185.77 0.85 18.228 0.005 AB
DES_z 213.42 1.71 18.077 0.009 AB
PanSTARRS_y 215.73 1.77 18.065 0.009 AB

Aperture details

RA, DEC (J2000) = 8h05m40.11s, 6d44m58.07s
semi major axis, semi minor axis (arcsec) = 9.21, 6.5
angle (degrees, anti-clockwise from east) = -62.08

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 109.17 5.55 18.805 0.055 AB
SDSS_g 308.09 4.93 17.678 0.017 AB
DES_g 328.23 0.88 17.610 0.003 AB
PanSTARRS_g 345.43 2.21 17.554 0.007 AB
SDSS_r 628.99 7.23 16.903 0.012 AB
PanSTARRS_r 638.03 2.08 16.888 0.004 AB
DES_r 663.66 2.19 16.845 0.004 AB
SDSS_i 893.6 9.18 16.522 0.011 AB
PanSTARRS_i 893.58 2.08 16.522 0.003 AB
PanSTARRS_z 1067.34 5.3 16.329 0.005 AB
SDSS_z 1230.32 23.28 16.175 0.021 AB
DES_z 1136.36 4.24 16.261 0.004 AB
PanSTARRS_y 1238.2 11.66 16.168 0.010 AB
2MASS_J 1607.83 181.46 14.989 0.123 Vega
2MASS_H 1909.81 307.52 14.330 0.175 Vega
2MASS_K 2328.49 276.84 13.645 0.129 Vega
WISE_W1 781.69 21.97 13.968 0.031 Vega
WISE_W2 506.71 25.18 13.799 0.054 Vega
WISE_W3 1021.32 94.85 11.203 0.101 Vega
WISE_W4 672.27 524.28 10.211 0.847 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})\, 9.836 9.984 10.125
{\rm log}_{10}({\rm SFR}) -1.610 -0.787 -0.057
{\rm log}_{10}({\rm sSFR}) -11.647 -10.835 -10.039
{\rm stellar\ age} 4.838 7.250 10.105

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.925 -0.427 -0.080
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.462 -0.708 0.007

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.373 0.782 1.232
\delta -0.487 -0.120 0.237
\tau_1/\tau_2 0.572 0.951 1.361
Q_{PAH} 0.851 2.936 5.594
U_{min} 2.816 7.898 15.414
{\rm log}_{10}(\gamma_e)\, -3.197 -2.197 -0.920

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.030 -1.070 -0.262
{\rm log}_{10}(\tau_{AGN})\, 1.014 1.540 1.966

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.150 -0.970 -0.366
0.03-0.10 Gyr -1.925 -0.814 0.048
0.10-0.33 Gyr -1.952 -0.773 0.027
0.33-1.06 Gyr -1.913 -0.512 0.255
1.06-3.46 Gyr -2.043 -0.278 0.173
3.46-11.27 Gyr -0.957 0.002 0.276
11.27-12.53 Gyr -0.601 0.238 1.078

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.647 10.711 10.814
{\rm log}_{10}({\rm SFR}) -1.271 -0.351 0.481
{\rm log}_{10}({\rm sSFR}) -12.039 -11.084 -10.189
{\rm stellar\ age} 7.366 8.501 11.664

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.116 -0.699 -0.497
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.306 0.010 0.349

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.116 0.222 0.400
\delta -0.840 -0.359 0.165
\tau_1/\tau_2 0.497 0.908 1.370
Q_{PAH} 0.634 2.031 4.496
U_{min} 3.106 8.809 16.363
{\rm log}_{10}(\gamma_e)\, -2.683 -1.466 -0.551

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.121 -2.847 -1.824
{\rm log}_{10}(\tau_{AGN})\, 1.083 1.568 1.929

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.072 -0.570 0.011
0.03-0.10 Gyr -1.844 -0.364 0.606
0.10-0.33 Gyr -3.104 -0.776 0.043
0.33-1.06 Gyr -4.159 -1.129 -0.235
1.06-3.46 Gyr -2.861 -0.677 0.238
3.46-11.27 Gyr -0.519 0.837 0.992
11.27-12.53 Gyr 0.313 1.297 1.945