2025qnu

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Information

Transient

Name: SN2025qnu
Right ascension: 0h45m19.82s
Declination: -3d41m34.49s
Discovery Date: July 4, 2025, 10:40 a.m.
Classification: SN Ia
Redshift: 0.068407
MW E(B-V): 0.032

Host

Name: 2662
Right ascension: 0h45m19.34s
Declination: -3d41m35.96s
Redshift: 0.068397
Photometric Redshift: 0.067
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 37.37
Transient MWEBV processed 0.11
Host match processed 5.82
Host information processed 0.15
Host MWEBV processed 0.13
Global aperture construction processed 0.66
Global aperture photometry processed 5.87
Validate global photometry processed 17.16
Global host SED inference processed 445.99
Local aperture photometry processed 6.6
Validate local photometry processed 0.03
Local host SED inference processed 439.7
 

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) = 0h45m19.82s, -3d41m34.49s
semi major axis, semi minor axis (arcsec) = 1.53, 1.53
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 67.46 2.22 19.327 0.036 AB
DES_g 73.11 0.26 19.240 0.004 AB
PanSTARRS_g 67.62 0.42 19.325 0.007 AB
SDSS_r 122.08 3.35 18.683 0.030 AB
PanSTARRS_r 119.87 0.38 18.703 0.003 AB
DES_r 150.43 0.46 18.457 0.003 AB
SDSS_i 182.46 4.22 18.247 0.025 AB
PanSTARRS_i 168.66 0.62 18.332 0.004 AB
PanSTARRS_z 198.31 1.12 18.157 0.006 AB
SDSS_z 222.01 6.77 18.034 0.033 AB
DES_z 251.87 1.63 17.897 0.007 AB
PanSTARRS_y 243.62 2.31 17.933 0.010 AB

Aperture details

RA, DEC (J2000) = 0h45m19.53s, -3d41m34.62s
semi major axis, semi minor axis (arcsec) = 26.69, 16.93
angle (degrees, anti-clockwise from east) = -103.93

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 286.81 4.35 17.756 0.016 AB
GALEX_NUV 405.68 3.11 17.380 0.008 AB
SDSS_u 388.22 17.45 17.427 0.049 AB
SDSS_g 2235.84 15.26 15.526 0.007 AB
DES_g 2363.34 1.68 15.466 0.001 AB
PanSTARRS_g 2257.23 5.45 15.516 0.003 AB
PanSTARRS_r 3003.84 4.72 15.206 0.002 AB
DES_r 3791.17 2.64 14.953 0.001 AB
PanSTARRS_i 4592.12 8.25 14.745 0.002 AB
PanSTARRS_z 4928.85 15.03 14.668 0.003 AB
PanSTARRS_y 5650.43 31.59 14.520 0.006 AB
2MASS_J 7069.45 424.62 13.382 0.065 Vega
2MASS_H 8262.62 647.94 12.740 0.085 Vega
WISE_W2 2637.92 77.98 12.008 0.032 Vega
WISE_W3 10930.26 397.76 8.629 0.040 Vega
WISE_W4 10874.91 1605.31 7.189 0.160 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})\, 9.420 9.564 9.667
{\rm log}_{10}({\rm SFR}) -0.900 -0.453 0.055
{\rm log}_{10}({\rm sSFR}) -10.496 -10.021 -9.442
{\rm stellar\ age} 4.201 6.277 7.645

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.733 -0.248 0.008
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.245 0.093 0.350

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.269 0.530 0.917
\delta -0.826 -0.496 -0.151
\tau_1/\tau_2 0.733 1.061 1.387
Q_{PAH} 1.144 3.226 5.730
U_{min} 2.935 7.662 14.411
{\rm log}_{10}(\gamma_e)\, -3.121 -1.705 -0.562

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.817 -1.747 -0.553
{\rm log}_{10}(\tau_{AGN})\, 1.018 1.527 2.001

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.752 -0.460 -0.139
0.03-0.10 Gyr -1.094 -0.461 0.129
0.10-0.33 Gyr -0.989 -0.428 0.062
0.33-1.08 Gyr -0.861 -0.396 -0.037
1.08-3.53 Gyr -0.716 -0.337 -0.117
3.53-11.56 Gyr -0.824 -0.407 -0.200
11.56-12.85 Gyr -1.025 -0.404 0.116

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.938 11.006 11.086
{\rm log}_{10}({\rm SFR}) 0.488 0.642 0.812
{\rm log}_{10}({\rm sSFR}) -10.534 -10.356 -10.185
{\rm stellar\ age} 6.467 7.474 9.150

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.544 -0.410 -0.280
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.387 -1.277 -1.179

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.166 0.255 0.421
\delta 0.084 0.278 0.368
\tau_1/\tau_2 0.311 0.699 1.107
Q_{PAH} 2.051 3.134 4.649
U_{min} 2.629 7.448 14.299
{\rm log}_{10}(\gamma_e)\, -2.910 -2.149 -1.577

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.435 -3.490 -2.349
{\rm log}_{10}(\tau_{AGN})\, 1.046 1.567 1.951

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.851 0.954 1.068
0.03-0.10 Gyr -0.179 0.364 0.705
0.10-0.33 Gyr -0.197 0.311 0.649
0.33-1.08 Gyr 0.164 0.613 0.913
1.08-3.53 Gyr 0.354 0.915 1.179
3.53-11.56 Gyr 0.880 1.106 1.244
11.56-12.85 Gyr 0.919 1.314 1.855