2025som

Download data

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: completed

Task Name	Status	Time taken (s)
Cutout download	processed	22.08
Transient MWEBV	processed	0.04
Host match	processed	7.71
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.68
Global aperture photometry	processed	5.32
Validate global photometry	processed	14.79
Global host SED inference	processed	499.12
Local aperture photometry	processed	6.24
Validate local photometry	processed	0.02
Local host SED inference	processed	487.69

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

Click the image to load the interactive plot.

Spectral Energy Distribution

Click the image to load the interactive plot.

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