2025som

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Information

Transient

Name: SN2025som
Right ascension: 3h27m36.29s
Declination: -3d46m20.42s
Discovery Date: July 29, 2025, 3:46 a.m.
Classification: SN Ia
Redshift: 0.025992
MW E(B-V): 0.035

Host

Name:
Right ascension: 3h27m36.25s
Declination: -3d46m15.85s
Redshift: 0.025992
Photometric Redshift: 0.023
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 7.71
Cutout download processed 22.08
Global aperture construction processed 0.68
Local aperture photometry processed 6.24
Global aperture photometry processed 5.32
Validate local photometry processed 0.02
Validate global photometry processed 14.79
Host information processed 0.15
Global host SED inference processed 499.12
Local host SED inference processed 487.69
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.04
Processing status completed N/A N/A
 

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) = 3h27m36.29s, -3d46m20.42s
semi major axis, semi minor axis (arcsec) = 3.83, 3.83
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 403.66 0.74 17.385 0.002 AB
PanSTARRS_g 368.47 1.22 17.484 0.004 AB
PanSTARRS_r 672.29 1.13 16.831 0.002 AB
DES_r 876.8 1.77 16.543 0.002 AB
PanSTARRS_i 934.66 1.43 16.473 0.002 AB
PanSTARRS_z 1151.95 3.08 16.246 0.003 AB
DES_z 1400.2 4.73 16.035 0.004 AB
PanSTARRS_y 1418.4 6.72 16.020 0.005 AB
2MASS_J 2180.55 88.58 14.659 0.044 Vega
2MASS_H 2404.76 149.31 14.080 0.067 Vega
2MASS_K 1967.0 152.43 13.828 0.084 Vega

Aperture details

RA, DEC (J2000) = 3h27m36.23s, -3d46m15.55s
semi major axis, semi minor axis (arcsec) = 12.14, 9.91
angle (degrees, anti-clockwise from east) = -57.48

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 20.55 4.29 20.618 0.227 AB
GALEX_NUV 32.09 4.01 20.134 0.136 AB
DES_g 2048.26 1.71 15.622 0.001 AB
PanSTARRS_g 2117.28 3.41 15.586 0.002 AB
PanSTARRS_r 3914.35 3.14 14.918 0.001 AB
DES_r 4238.42 3.92 14.832 0.001 AB
PanSTARRS_i 5532.61 4.04 14.543 0.001 AB
PanSTARRS_z 6830.71 8.59 14.314 0.001 AB
DES_z 7356.85 11.0 14.233 0.002 AB
PanSTARRS_y 8254.64 18.78 14.108 0.002 AB
2MASS_J 10069.65 259.0 12.998 0.028 Vega
2MASS_H 12165.4 437.84 12.320 0.039 Vega
2MASS_K 10114.39 448.21 12.050 0.048 Vega
WISE_W1 4240.79 41.43 12.132 0.011 Vega
WISE_W2 2354.87 42.29 12.131 0.019 Vega
WISE_W3 851.21 128.61 11.401 0.164 Vega
WISE_W4 935.55 501.02 9.852 0.581 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.226 9.477 9.708
{\rm log}_{10}({\rm SFR}) -0.535 -0.080 0.328
{\rm log}_{10}({\rm sSFR}) -10.190 -9.587 -8.929
{\rm stellar\ age} 3.780 6.785 8.794

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.363 -0.589 -0.176
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.680 -1.103 0.083

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.750 1.055 1.382
\delta -0.595 -0.336 -0.023
\tau_1/\tau_2 0.457 0.851 1.276
Q_{PAH} 0.395 1.573 3.448
U_{min} 2.483 7.866 14.948
{\rm log}_{10}(\gamma_e)\, -3.447 -2.458 -1.185

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.436 -3.384 -1.545
{\rm log}_{10}(\tau_{AGN})\, 0.900 1.363 1.967

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.311 -0.017 0.238
0.03-0.10 Gyr -1.135 -0.147 0.379
0.10-0.33 Gyr -1.634 -0.530 -0.008
0.33-1.10 Gyr -1.665 -0.663 -0.196
1.10-3.64 Gyr -1.654 -0.644 -0.266
3.64-12.07 Gyr -1.379 -0.561 -0.199
12.07-13.41 Gyr -1.468 -0.488 0.266

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.374 10.464 10.500
{\rm log}_{10}({\rm SFR}) -2.242 -1.783 -1.398
{\rm log}_{10}({\rm sSFR}) -12.735 -12.226 -11.811
{\rm stellar\ age} 8.770 12.138 12.721

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.620 -0.509 -0.408
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.460 -0.622 0.076

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.034 0.078 0.143
\delta -0.791 -0.442 -0.058
\tau_1/\tau_2 0.543 0.974 1.411
Q_{PAH} 0.554 1.899 3.970
U_{min} 3.318 9.054 16.527
{\rm log}_{10}(\gamma_e)\, -1.791 -1.024 -0.460

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.574 -3.848 -2.888
{\rm log}_{10}(\tau_{AGN})\, 1.069 1.607 1.971

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.384 -1.774 -1.422
0.03-0.10 Gyr -3.076 -1.887 -1.351
0.10-0.33 Gyr -3.934 -2.076 -1.390
0.33-1.10 Gyr -4.292 -2.234 -1.396
1.10-3.64 Gyr -3.632 -1.931 -0.909
3.64-12.07 Gyr -1.978 -0.172 0.592
12.07-13.41 Gyr 0.779 1.545 1.622