2025ylb

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Information

Transient

Name: SN2025ylb
Right ascension: 23h11m53.20s
Declination: 24d00m37.54s
Discovery Date: Sept. 21, 2025, 5:59 a.m.
Classification: SN Ia
Redshift: 0.028160
MW E(B-V): 0.134

Host

Name: UGC12409
Right ascension: 23h11m51.69s
Declination: 24d00m37.07s
Redshift: 0.028631
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.21
Transient MWEBV processed 0.05
Host match processed 4.47
Host information processed 0.12
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 6.51
Validate global photometry processed 17.4
Global host SED inference processed 881.86
Local aperture photometry processed 6.19
Validate local photometry processed 0.02
Local host SED inference processed 466.75
 

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) = 23h11m53.20s, 24d00m37.54s
semi major axis, semi minor axis (arcsec) = 3.48, 3.48
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 12.63 2.17 21.146 0.187 AB
SDSS_g 11.95 1.56 21.206 0.142 AB
DES_g 13.45 0.2 21.078 0.016 AB
PanSTARRS_g 11.41 0.91 21.257 0.086 AB
SDSS_r 24.17 1.96 20.442 0.088 AB
PanSTARRS_r 30.05 1.32 20.205 0.048 AB
DES_r 30.5 0.5 20.189 0.018 AB
SDSS_i 43.63 3.07 19.800 0.076 AB
PanSTARRS_i 31.51 1.34 20.154 0.046 AB
PanSTARRS_z 46.06 2.78 19.742 0.066 AB
SDSS_z 43.05 10.21 19.815 0.258 AB
DES_z 62.06 1.4 19.418 0.024 AB
PanSTARRS_y 72.82 5.58 19.244 0.083 AB
2MASS_J 38.95 81.49 19.029 2.272 Vega
2MASS_H 14.53 135.24 19.627 10.105 Vega
2MASS_K 32.08 143.64 18.297 4.862 Vega

Aperture details

RA, DEC (J2000) = 23h11m51.67s, 24d00m36.70s
semi major axis, semi minor axis (arcsec) = 23.78, 9.75
angle (degrees, anti-clockwise from east) = -116.05

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 31.33 3.99 20.160 0.138 AB
GALEX_NUV 23.01 2.87 20.495 0.135 AB
SDSS_u 497.73 10.39 17.158 0.023 AB
SDSS_g 2085.86 13.04 15.602 0.007 AB
PanSTARRS_g 2292.62 3.96 15.499 0.002 AB
SDSS_r 5198.2 19.76 14.610 0.004 AB
DES_r 5829.04 5.37 14.486 0.001 AB
PanSTARRS_i 8247.18 5.99 14.109 0.001 AB
PanSTARRS_z 11341.08 12.36 13.763 0.001 AB
SDSS_z 12068.87 52.4 13.696 0.005 AB
DES_z 12516.71 17.76 13.656 0.002 AB
PanSTARRS_y 14736.38 24.37 13.479 0.002 AB
2MASS_J 19811.91 366.42 12.263 0.020 Vega
2MASS_H 27403.68 604.16 11.438 0.024 Vega
2MASS_K 23423.98 642.42 11.138 0.030 Vega
WISE_W2 7487.79 72.96 10.875 0.011 Vega
WISE_W3 11393.94 208.52 8.584 0.020 Vega
WISE_W4 9895.65 1269.89 7.291 0.139 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})\, 7.717 8.168 8.420
{\rm log}_{10}({\rm SFR}) -1.323 -0.992 -0.662
{\rm log}_{10}({\rm sSFR}) -9.653 -9.160 -8.441
{\rm stellar\ age} 2.474 6.413 8.031

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.829 -0.215 0.042
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.077 0.206 0.342

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.862 1.164 1.569
\delta -0.321 -0.061 0.171
\tau_1/\tau_2 0.699 1.091 1.534
Q_{PAH} 0.320 1.122 3.011
U_{min} 2.879 8.260 15.200
{\rm log}_{10}(\gamma_e)\, -3.438 -2.297 -1.209

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.061 -2.437 -0.930
{\rm log}_{10}(\tau_{AGN})\, 0.931 1.305 1.755

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.015 -0.781 -0.525
0.03-0.10 Gyr -2.084 -1.226 -0.713
0.10-0.33 Gyr -3.308 -2.000 -1.424
0.33-1.10 Gyr -3.626 -2.069 -1.580
1.10-3.63 Gyr -3.262 -1.963 -1.557
3.63-12.04 Gyr -3.281 -1.888 -1.519
12.04-13.37 Gyr -3.359 -1.904 -1.238

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.847 10.885 10.942
{\rm log}_{10}({\rm SFR}) -1.247 -0.852 -0.574
{\rm log}_{10}({\rm sSFR}) -12.120 -11.743 -11.459
{\rm stellar\ age} 7.977 8.917 11.912

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.287 -0.149 -0.030
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.078 0.182 0.429

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.237 0.387 0.532
\delta 0.164 0.313 0.378
\tau_1/\tau_2 0.523 0.892 1.257
Q_{PAH} 1.271 2.171 3.342
U_{min} 2.753 8.073 15.403
{\rm log}_{10}(\gamma_e)\, -2.821 -2.076 -1.426

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.524 -3.458 -2.055
{\rm log}_{10}(\tau_{AGN})\, 1.200 1.657 1.965

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.021 -0.701 -0.467
0.03-0.10 Gyr -2.614 -1.016 -0.555
0.10-0.33 Gyr -2.595 -1.206 -0.644
0.33-1.10 Gyr -2.677 -1.308 -0.666
1.10-3.63 Gyr -1.878 -0.629 0.243
3.63-12.04 Gyr 0.277 1.050 1.148
12.04-13.37 Gyr 0.697 1.386 2.010