2025acsn

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Information

Transient

Name: SN2025acsn
Right ascension: 23h07m18.81s
Declination: 42d11m55.91s
Discovery Date: Nov. 6, 2025, 2:21 a.m.
Classification: SN Ia
Redshift: 0.015791
MW E(B-V): 0.138

Host

Name: 70518
Right ascension: 23h07m18.98s
Declination: 42d12m04.47s
Redshift: 0.016549
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 3.8
Transient MWEBV processed 0.07
Host match processed 4.15
Host information processed 0.12
Host MWEBV processed 0.04
Global aperture construction processed 0.66
Global aperture photometry processed 3.94
Validate global photometry processed 10.28
Global host SED inference processed 475.92
Local aperture photometry processed 3.83
Validate local photometry processed 0.02
Local host SED inference processed 2431.45
 

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) = 23h07m18.81s, 42d11m55.91s
semi major axis, semi minor axis (arcsec) = 5.94, 5.94
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 609.16 1.7 16.938 0.003 AB
PanSTARRS_r 1000.19 2.05 16.400 0.002 AB
PanSTARRS_i 1383.91 2.25 16.047 0.002 AB
PanSTARRS_z 1739.22 4.81 15.799 0.003 AB
PanSTARRS_y 2080.84 10.56 15.604 0.006 AB
2MASS_J 2545.85 159.14 14.491 0.068 Vega
2MASS_H 3186.78 249.76 13.774 0.085 Vega
2MASS_K 3093.54 261.74 13.336 0.092 Vega
WISE_W1 642.59 17.86 14.181 0.030 Vega

Aperture details

RA, DEC (J2000) = 23h07m18.94s, 42d12m00.63s
semi major axis, semi minor axis (arcsec) = 32.84, 16.84
angle (degrees, anti-clockwise from east) = -164.66

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 4946.86 6.57 14.664 0.001 AB
PanSTARRS_y 15919.97 42.03 13.395 0.003 AB
2MASS_J 17892.74 632.82 12.373 0.038 Vega
2MASS_H 21530.43 994.29 11.700 0.050 Vega
2MASS_K 18847.42 1042.5 11.374 0.060 Vega
WISE_W1 10415.8 89.08 11.157 0.009 Vega
WISE_W2 6468.6 88.85 11.034 0.015 Vega
WISE_W4 40277.64 2020.05 5.767 0.054 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})\, 9.259 9.374 9.502
{\rm log}_{10}({\rm SFR}) -2.035 -1.280 -0.543
{\rm log}_{10}({\rm sSFR}) -11.474 -10.678 -9.819
{\rm stellar\ age} 7.453 8.935 12.397

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.469 -1.169 -0.945
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.841 -0.329 -0.010

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.116 0.228 0.410
\delta -0.956 -0.828 -0.578
\tau_1/\tau_2 0.495 0.873 1.272
Q_{PAH} 0.112 0.475 1.601
U_{min} 2.630 7.685 15.379
{\rm log}_{10}(\gamma_e)\, -3.331 -2.224 -1.355

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.239 -3.162 -2.183
{\rm log}_{10}(\tau_{AGN})\, 1.225 1.688 2.025

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.994 -1.476 -1.107
0.03-0.10 Gyr -2.652 -1.280 -0.418
0.10-0.33 Gyr -3.053 -1.514 -0.754
0.33-1.10 Gyr -3.379 -1.722 -1.050
1.10-3.67 Gyr -3.460 -1.572 -0.804
3.67-12.18 Gyr -1.763 -0.615 -0.408
12.18-13.54 Gyr -0.820 -0.096 0.600

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.982 10.172 10.305
{\rm log}_{10}({\rm SFR}) -0.575 0.140 0.567
{\rm log}_{10}({\rm sSFR}) -10.775 -10.025 -9.520
{\rm stellar\ age} 5.376 7.483 9.520

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.984 -0.530 -0.256
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.652 -0.973 0.067

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.159 0.349 0.578
\delta -0.758 -0.367 0.119
\tau_1/\tau_2 0.506 0.956 1.357
Q_{PAH} 0.377 1.106 2.518
U_{min} 2.343 6.904 13.654
{\rm log}_{10}(\gamma_e)\, -3.652 -2.896 -1.571

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.572 -2.426 -1.816
{\rm log}_{10}(\tau_{AGN})\, 1.057 1.529 1.933

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.754 -0.107 0.265
0.03-0.10 Gyr -1.091 0.150 0.700
0.10-0.33 Gyr -1.087 0.024 0.640
0.33-1.10 Gyr -1.081 -0.164 0.324
1.10-3.67 Gyr -0.774 0.000 0.347
3.67-12.18 Gyr -0.314 0.181 0.445
12.18-13.54 Gyr -0.399 0.303 1.027