2025acau

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Information

Transient

Name: SN2025acau
Right ascension: 8h53m05.11s
Declination: -16d33m51.42s
Discovery Date: Oct. 26, 2025, 11:31 a.m.
Classification: SN Ia
Redshift: 0.063000
MW E(B-V): 0.064

Host

Name: 153226
Right ascension: 8h53m05.15s
Declination: -16d33m49.95s
Redshift: 0.054289
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 4.96
Transient MWEBV processed 0.04
Host match processed 4.48
Host information processed 0.18
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 4.13
Validate global photometry processed 11.79
Global host SED inference processed 478.95
Local aperture photometry processed 4.11
Validate local photometry processed 0.02
Local host SED inference processed 584.03
 

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) = 8h53m05.11s, -16d33m51.42s
semi major axis, semi minor axis (arcsec) = 1.9, 1.9
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 613.43 0.89 16.931 0.002 AB
PanSTARRS_r 1325.06 1.12 16.094 0.001 AB
PanSTARRS_i 1888.56 0.82 15.710 0.000 AB
PanSTARRS_z 2228.24 1.66 15.530 0.001 AB
PanSTARRS_y 2727.29 3.35 15.311 0.001 AB

Aperture details

RA, DEC (J2000) = 8h53m05.16s, -16d33m50.03s
semi major axis, semi minor axis (arcsec) = 12.19, 9.93
angle (degrees, anti-clockwise from east) = -167.84

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 17.65 4.12 20.783 0.253 AB
PanSTARRS_g 2507.55 3.38 15.402 0.001 AB
PanSTARRS_r 4992.26 4.47 14.654 0.001 AB
PanSTARRS_i 7228.07 3.01 14.252 0.000 AB
PanSTARRS_z 8760.26 8.05 14.044 0.001 AB
PanSTARRS_y 11039.66 17.91 13.793 0.002 AB
2MASS_J 13327.0 294.77 12.693 0.024 Vega
2MASS_H 17129.11 443.45 11.948 0.028 Vega
2MASS_K 14298.48 627.35 11.674 0.048 Vega
WISE_W2 3874.5 52.93 11.590 0.015 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})\, 10.186 10.352 10.508
{\rm log}_{10}({\rm SFR}) -0.865 0.316 1.009
{\rm log}_{10}({\rm sSFR}) -11.367 -10.015 -9.275
{\rm stellar\ age} 2.792 5.713 7.891

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.714 -1.169 -0.732
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.663 0.209 0.395

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.498 0.864 1.205
\delta -0.945 -0.826 -0.674
\tau_1/\tau_2 0.612 0.978 1.360
Q_{PAH} 0.453 2.355 4.317
U_{min} 3.418 9.187 16.511
{\rm log}_{10}(\gamma_e)\, -2.900 -1.178 -0.243

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.433 -3.096 -1.133
{\rm log}_{10}(\tau_{AGN})\, 0.925 1.535 2.029

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.699 0.184 0.557
0.03-0.10 Gyr -1.375 0.306 1.145
0.10-0.33 Gyr -1.176 0.482 1.095
0.33-1.08 Gyr -1.250 0.410 0.872
1.08-3.56 Gyr -0.784 0.420 0.730
3.56-11.73 Gyr -0.866 0.239 0.606
11.73-13.03 Gyr -0.870 0.303 1.025

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 11.093 11.160 11.264
{\rm log}_{10}({\rm SFR}) -1.029 -0.049 0.687
{\rm log}_{10}({\rm sSFR}) -12.278 -11.193 -10.388
{\rm stellar\ age} 7.239 8.166 11.543

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.691 -0.500 -0.344
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.238 -0.349 0.192

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.186 0.320 0.450
\delta -0.838 -0.529 0.040
\tau_1/\tau_2 0.551 0.936 1.308
Q_{PAH} 0.307 1.206 4.530
U_{min} 2.750 8.097 15.715
{\rm log}_{10}(\gamma_e)\, -3.071 -1.994 -0.859

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.644 -3.999 -3.088
{\rm log}_{10}(\tau_{AGN})\, 1.122 1.676 2.002

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.145 -0.265 0.382
0.03-0.10 Gyr -1.504 -0.154 0.784
0.10-0.33 Gyr -1.629 -0.071 0.728
0.33-1.08 Gyr -1.826 -0.010 0.684
1.08-3.56 Gyr -1.221 0.529 1.114
3.56-11.73 Gyr 0.582 1.279 1.418
11.73-13.03 Gyr 0.903 1.544 2.324