2025xby

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Information

Transient

Name: SN2025xby
Right ascension: 21h51m45.45s
Declination: -6d54m27.79s
Discovery Date: Sept. 8, 2025, 5:11 a.m.
Classification: SN Ia
Redshift: 0.057723
MW E(B-V): 0.027

Host

Name: 1027097
Right ascension: 21h51m45.73s
Declination: -6d54m26.68s
Redshift: 0.057723
Photometric Redshift:
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.81
Transient MWEBV processed 0.05
Host match processed 4.23
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.65
Global aperture photometry processed 5.61
Validate global photometry processed 14.25
Global host SED inference processed 411.14
Local aperture photometry processed 6.25
Validate local photometry processed 0.03
Local host SED inference processed 424.47
 

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) = 21h51m45.45s, -6d54m27.79s
semi major axis, semi minor axis (arcsec) = 1.79, 1.79
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 7.04 1.84 21.781 0.284 AB
SDSS_g 43.5 1.82 19.804 0.045 AB
DES_g 47.46 0.38 19.709 0.009 AB
PanSTARRS_g 44.0 0.39 19.791 0.010 AB
SDSS_r 91.49 2.63 18.997 0.031 AB
PanSTARRS_r 89.09 0.48 19.025 0.006 AB
DES_r 102.86 1.19 18.869 0.013 AB
SDSS_i 137.25 3.36 18.556 0.027 AB
PanSTARRS_i 128.23 0.55 18.630 0.005 AB
PanSTARRS_z 152.77 1.45 18.440 0.010 AB
SDSS_z 177.5 6.61 18.277 0.040 AB
DES_z 179.88 2.61 18.263 0.016 AB
PanSTARRS_y 184.2 3.98 18.237 0.023 AB

Aperture details

RA, DEC (J2000) = 21h51m45.72s, -6d54m26.76s
semi major axis, semi minor axis (arcsec) = 13.44, 4.6
angle (degrees, anti-clockwise from east) = -88.47

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 12.6 2.78 21.149 0.239 AB
GALEX_NUV 15.64 1.06 20.914 0.074 AB
SDSS_g 405.19 5.93 17.381 0.016 AB
DES_g 440.85 1.21 17.289 0.003 AB
PanSTARRS_g 442.69 1.66 17.285 0.004 AB
PanSTARRS_r 912.17 2.03 16.500 0.002 AB
DES_r 992.47 3.8 16.408 0.004 AB
PanSTARRS_i 1341.47 2.35 16.081 0.002 AB
PanSTARRS_z 1617.45 6.26 15.878 0.004 AB
DES_z 1809.16 8.41 15.756 0.005 AB
PanSTARRS_y 2051.39 17.28 15.620 0.009 AB
2MASS_J 2381.33 210.24 14.563 0.096 Vega
2MASS_H 3673.77 350.09 13.620 0.103 Vega
2MASS_K 3216.62 377.1 13.294 0.127 Vega
WISE_W1 1373.29 26.57 13.357 0.021 Vega
WISE_W2 830.02 30.95 13.263 0.040 Vega
WISE_W3 1846.51 113.81 10.560 0.067 Vega
WISE_W4 1575.06 690.33 9.287 0.476 Vega
 

Imaging data

Click the image to load the interactive plot.


 

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})\, 9.267 9.381 9.507
{\rm log}_{10}({\rm SFR}) -1.472 -1.048 -0.632
{\rm log}_{10}({\rm sSFR}) -10.929 -10.431 -9.942
{\rm stellar\ age} 5.860 7.200 8.815

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.122 -0.658 -0.303
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.487 0.161 0.380

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.372 0.640 0.976
\delta -0.784 -0.423 -0.065
\tau_1/\tau_2 0.642 0.977 1.293
Q_{PAH} 1.065 3.215 5.381
U_{min} 2.934 7.931 14.390
{\rm log}_{10}(\gamma_e)\, -3.047 -2.041 -0.670

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.509 -1.407 -0.551
{\rm log}_{10}(\tau_{AGN})\, 0.877 1.393 1.921

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.256 -0.906 -0.602
0.03-0.10 Gyr -1.862 -1.174 -0.624
0.10-0.33 Gyr -1.958 -1.132 -0.585
0.33-1.08 Gyr -1.809 -0.948 -0.507
1.08-3.55 Gyr -1.463 -0.674 -0.406
3.55-11.69 Gyr -0.822 -0.509 -0.327
11.69-12.99 Gyr -1.002 -0.460 0.168

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.481 10.523 10.608
{\rm log}_{10}({\rm SFR}) -1.071 -0.758 -0.492
{\rm log}_{10}({\rm sSFR}) -11.629 -11.291 -11.006
{\rm stellar\ age} 7.900 9.156 12.026

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.519 -0.357 -0.218
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.062 0.290 0.422

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.189 0.277 0.393
\delta -0.646 -0.345 -0.063
\tau_1/\tau_2 0.435 0.823 1.228
Q_{PAH} 0.815 2.309 4.388
U_{min} 2.478 7.559 15.119
{\rm log}_{10}(\gamma_e)\, -3.025 -1.832 -0.912

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.404 -3.446 -2.408
{\rm log}_{10}(\tau_{AGN})\, 1.025 1.552 1.924

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.708 -0.430 -0.185
0.03-0.10 Gyr -2.789 -1.194 -0.646
0.10-0.33 Gyr -2.844 -1.293 -0.695
0.33-1.08 Gyr -2.561 -1.201 -0.628
1.08-3.55 Gyr -2.004 -0.762 -0.087
3.55-11.69 Gyr -0.407 0.629 0.761
11.69-12.99 Gyr 0.588 1.192 1.721