2026bjn results

2026bjn results

Information

Transient

Name:	`SN2026bjn`
Right ascension:	`11h52m40.16s`
Declination:	`-7d39m30.43s`
Discovery Date:	`Jan. 24, 2026, 3:26 p.m.`
Classification:	`SN Ia`
Redshift:	`0.079300`
MW E(B-V):	`0.035`

Host

Name:	`J115239.99-073924.49`
Right ascension:	`11h52m39.99s`
Declination:	`-7d39m24.49s`
Redshift:	`None`
Photometric Redshift:	`0.078`

Cutout Download Report

Downloaded	Unavailable
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 DES_g DES_r DES_z	SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	6.32
Transient MWEBV	processed	0.03
Host match	processed	5.93
Host information	processed	0.16
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	5.34
Validate global photometry	processed	14.83
Global host SED inference	processed	400.74
Local aperture photometry	processed	5.1
Validate local photometry	processed	0.02
Local host SED inference	processed	480.34

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	11h52m40.16s, -7d39m30.43s
semi major axis, semi minor axis (arcsec):	1.34, 1.34
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	17.61	0.2	20.786	0.012	AB
PanSTARRS_g	15.77	0.3	20.906	0.020	AB
PanSTARRS_r	22.87	0.36	20.502	0.017	AB
DES_r	27.56	0.37	20.299	0.015	AB
PanSTARRS_i	29.36	0.44	20.231	0.016	AB
PanSTARRS_z	35.32	0.81	20.030	0.025	AB
DES_z	37.75	1.08	19.958	0.031	AB
PanSTARRS_y	36.63	1.7	19.990	0.051	AB

Aperture details

RA, DEC (J2000):	11h52m39.99s, -7d39m24.36s
semi major axis, semi minor axis (arcsec):	14.17, 7.89
angle (degrees, anti-clockwise from east):	-12.48

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	54.79	7.26	19.553	0.144	AB
GALEX_NUV	84.87	5.59	19.078	0.071	AB
DES_g	647.34	1.27	16.872	0.002	AB
PanSTARRS_g	638.29	2.3	16.887	0.004	AB
PanSTARRS_r	1043.7	2.84	16.354	0.003	AB
DES_r	1131.14	2.48	16.266	0.002	AB
PanSTARRS_i	1402.49	3.45	16.033	0.003	AB
PanSTARRS_z	1668.26	6.38	15.844	0.004	AB
DES_z	1710.58	7.47	15.817	0.005	AB
PanSTARRS_y	1833.12	13.57	15.742	0.008	AB
2MASS_J	1567.07	316.06	15.017	0.219	Vega
2MASS_H	1656.3	379.57	14.485	0.249	Vega
2MASS_K	849.41	569.09	14.739	0.727	Vega
WISE_W1	1268.42	78.49	13.443	0.067	Vega
WISE_W2	735.32	109.36	13.395	0.161	Vega
WISE_W3	1802.67	494.05	10.586	0.298	Vega
WISE_W4	1393.69	873.59	9.420	0.681	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.379	8.666	8.836
{\rm log}_{10}({\rm SFR})	-1.961	-0.747	0.120
{\rm log}_{10}({\rm sSFR})	-10.689	-9.497	-8.089
{\rm stellar\ age}	0.230	3.177	6.160

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.523	-0.796	-0.191
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.631	-0.766	0.126

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.231	0.637	1.217
\delta	-0.526	-0.196	0.144
\tau_1/\tau_2	0.616	1.031	1.462
Q_{PAH}	1.319	3.176	5.368
U_{min}	3.610	9.460	17.525
{\rm log}_{10}(\gamma_e)\,	-2.939	-1.772	-0.648

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.825	-0.815	-0.130
{\rm log}_{10}(\tau_{AGN})\,	1.025	1.392	1.880

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.557	-1.771	-1.078
0.03-0.10 Gyr	-2.106	-0.626	0.280
0.10-0.33 Gyr	-2.464	-0.795	-0.036
0.33-1.07 Gyr	-2.823	-1.013	-0.510
1.07-3.50 Gyr	-4.242	-1.567	-1.005
3.50-11.46 Gyr	-5.243	-1.917	-1.197
11.46-12.73 Gyr	-5.324	-1.867	-0.979
0.33-1.07 Gyr	-3.716	-1.086	-0.550
1.07-3.50 Gyr	-4.882	-1.595	-0.940
3.50-11.44 Gyr	-5.457	-1.940	-1.153
11.44-12.71 Gyr	-5.926	-1.864	-0.987

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.530	10.593	10.682
{\rm log}_{10}({\rm SFR})	0.208	0.580	0.862
{\rm log}_{10}({\rm sSFR})	-10.418	-10.006	-9.705
{\rm stellar\ age}	6.080	6.974	8.360

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.974	-0.652	-0.433
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.602	0.014	0.369

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.194	0.333	0.516
\delta	-0.276	0.039	0.258
\tau_1/\tau_2	0.671	1.030	1.379
Q_{PAH}	0.672	2.174	4.221
U_{min}	2.796	8.034	15.400
{\rm log}_{10}(\gamma_e)\,	-2.942	-1.976	-1.354

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.186	-3.129	-2.241
{\rm log}_{10}(\tau_{AGN})\,	0.980	1.415	1.866

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.516	-0.110	0.223
0.03-0.10 Gyr	0.277	0.705	1.012
0.10-0.33 Gyr	0.297	0.662	0.978
0.33-1.07 Gyr	-0.284	0.412	0.670
1.07-3.50 Gyr	-0.098	0.509	0.769
3.50-11.46 Gyr	0.330	0.673	0.817
11.46-12.73 Gyr	0.181	0.792	1.450
0.33-1.07 Gyr	-0.077	0.424	0.656
1.07-3.50 Gyr	0.017	0.543	0.790
3.50-11.44 Gyr	0.439	0.709	0.841
11.44-12.71 Gyr	0.240	0.785	1.357