2025ytj

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Information

Transient

Name: SN2025ytj
Right ascension: 8h27m07.49s
Declination: 22d50m30.77s
Discovery Date: Sept. 14, 2025, 5:43 a.m.
Classification: SN Ia
Redshift: 0.022772
MW E(B-V): 0.034

Host

Name: PGC023702
Right ascension: 8h27m07.84s
Declination: 22d50m31.64s
Redshift: 0.021581
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 16.33
Transient MWEBV processed 0.06
Host match processed 5.05
Host information processed 0.12
Host MWEBV processed 0.04
Global aperture construction processed 0.67
Global aperture photometry processed 6.68
Validate global photometry processed 17.93
Global host SED inference processed 606.6
Local aperture photometry processed 6.82
Validate local photometry processed 0.04
Local host SED inference processed 518.73
 

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) = 8h27m07.49s, 22d50m30.77s
semi major axis, semi minor axis (arcsec) = 4.58, 4.58
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 17.52 4.46 20.791 0.276 AB
SDSS_u 198.53 6.04 18.155 0.033 AB
SDSS_g 689.21 7.05 16.804 0.011 AB
DES_g 745.02 1.25 16.720 0.002 AB
PanSTARRS_g 806.92 1.18 16.633 0.002 AB
SDSS_r 1384.08 10.01 16.047 0.008 AB
PanSTARRS_r 1561.82 1.29 15.916 0.001 AB
DES_r 1551.58 3.06 15.923 0.002 AB
SDSS_i 1978.48 12.2 15.659 0.007 AB
PanSTARRS_i 2139.64 1.56 15.574 0.001 AB
PanSTARRS_z 2716.43 3.3 15.315 0.001 AB
SDSS_z 2627.48 18.19 15.351 0.008 AB
DES_z 2799.79 9.55 15.282 0.004 AB
PanSTARRS_y 3336.36 7.94 15.092 0.003 AB
2MASS_J 4343.53 95.31 13.910 0.024 Vega
2MASS_H 5581.85 163.45 13.165 0.032 Vega
2MASS_K 4739.76 143.49 12.873 0.033 Vega

Aperture details

RA, DEC (J2000) = 8h27m07.86s, 22d50m32.39s
semi major axis, semi minor axis (arcsec) = 23.38, 14.11
angle (degrees, anti-clockwise from east) = -159.62

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 1179.83 21.54 16.220 0.020 AB
SDSS_g 4066.79 18.11 14.877 0.005 AB
DES_g 4339.46 3.18 14.806 0.001 AB
PanSTARRS_g 4423.97 4.27 14.785 0.001 AB
DES_r 8862.84 7.55 14.031 0.001 AB
SDSS_i 11806.88 32.28 13.720 0.003 AB
PanSTARRS_i 11750.39 5.73 13.725 0.001 AB
PanSTARRS_z 15134.02 12.47 13.450 0.001 AB
SDSS_z 15560.59 59.39 13.420 0.004 AB
DES_z 16002.54 23.22 13.390 0.002 AB
PanSTARRS_y 18596.3 30.85 13.226 0.002 AB
2MASS_H 26947.05 650.02 11.456 0.026 Vega
WISE_W1 11075.92 74.88 11.090 0.007 Vega
WISE_W3 11734.99 249.05 8.552 0.023 Vega
WISE_W4 12542.38 1552.93 7.034 0.134 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})\, 9.792 9.885 10.004
{\rm log}_{10}({\rm SFR}) -1.066 -0.539 -0.126
{\rm log}_{10}({\rm sSFR}) -11.003 -10.445 -9.968
{\rm stellar\ age} 6.888 7.917 9.889

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.538 -0.952 -0.506
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.780 0.007 0.304

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.725 1.049 1.234
\delta -0.178 0.022 0.290
\tau_1/\tau_2 0.667 1.021 1.380
Q_{PAH} 0.343 1.999 4.557
U_{min} 2.497 7.902 14.592
{\rm log}_{10}(\gamma_e)\, -3.341 -2.108 -1.003

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.039 -2.091 -1.023
{\rm log}_{10}(\tau_{AGN})\, 0.977 1.391 1.995

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.935 -0.471 -0.197
0.03-0.10 Gyr -1.352 -0.612 -0.080
0.10-0.33 Gyr -1.336 -0.560 -0.134
0.33-1.10 Gyr -1.375 -0.590 -0.222
1.10-3.65 Gyr -1.026 -0.329 -0.018
3.65-12.12 Gyr -0.280 -0.020 0.146
12.12-13.47 Gyr -0.324 0.166 0.782

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.510 10.579 10.670
{\rm log}_{10}({\rm SFR}) -1.533 -0.255 0.520
{\rm log}_{10}({\rm sSFR}) -12.163 -10.904 -10.014
{\rm stellar\ age} 7.894 9.246 12.405

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.562 -0.371 -0.246
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.022 0.183 0.405

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.108 0.306 0.456
\delta -0.887 -0.531 0.098
\tau_1/\tau_2 0.645 1.011 1.408
Q_{PAH} 0.251 0.878 2.172
U_{min} 2.365 7.166 14.113
{\rm log}_{10}(\gamma_e)\, -3.596 -2.768 -1.688

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.022 -1.781 -1.306
{\rm log}_{10}(\tau_{AGN})\, 1.094 1.367 1.715

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.842 -0.927 -0.193
0.03-0.10 Gyr -1.701 -0.150 0.668
0.10-0.33 Gyr -2.424 -0.633 0.170
0.33-1.10 Gyr -2.844 -0.951 -0.207
1.10-3.65 Gyr -2.136 -0.590 0.119
3.65-12.12 Gyr -0.420 0.638 0.805
12.12-13.47 Gyr 0.430 1.177 1.758