2026bsu results

2026bsu results

Information

Transient

Name:	`SN2026bsu`
Right ascension:	`23h08m57.57s`
Declination:	`-88d59m11.86s`
Discovery Date:	`Jan. 30, 2026, 12:41 a.m.`
Classification:	`SN Ia`
Redshift:	`0.020410`
MW E(B-V):	`0.124`

Host

Name:
Right ascension:	`23h08m55.75s`
Declination:	`-88d59m13.66s`
Redshift:	`None`
Photometric Redshift:	`None`

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 SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_g DES_r DES_i DES_z DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	3.27
Transient MWEBV	processed	0.08
Host match	processed	4.87
Host information	processed	0.07
Host MWEBV	processed	0.05
Global aperture construction	processed	0.14
Global aperture photometry	processed	0.79
Validate global photometry	processed	1.24
Global host SED inference	processed	605.32
Local aperture photometry	processed	0.75
Validate local photometry	processed	0.01
Local host SED inference	processed	515.31

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	23h08m57.57s, -88d59m11.86s
semi major axis, semi minor axis (arcsec):	4.84, 4.84
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	38.45	4.19	19.938	0.118	AB
2MASS_J	8543.09	131.74	13.176	0.017	Vega
2MASS_H	10729.47	233.31	12.456	0.024	Vega
2MASS_K	9862.04	222.98	12.077	0.025	Vega

Aperture details

RA, DEC (J2000):	23h08m54.23s, -88d59m13.67s
semi major axis, semi minor axis (arcsec):	24.26, 13.15
angle (degrees, anti-clockwise from east):	-123.06

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	161.92	8.72	18.377	0.058	AB
GALEX_NUV	205.66	7.08	18.117	0.037	AB
2MASS_H	29245.99	853.47	11.367	0.032	Vega
2MASS_K	24992.42	815.74	11.068	0.035	Vega
WISE_W1	12766.5	58.05	10.936	0.005	Vega
WISE_W2	7547.32	59.13	10.867	0.009	Vega
WISE_W3	23089.47	168.25	7.817	0.008	Vega
WISE_W4	59958.64	1761.98	5.335	0.032	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.729	9.972	10.182
{\rm log}_{10}({\rm SFR})	-0.177	0.389	1.005
{\rm log}_{10}({\rm sSFR})	-10.243	-9.619	-8.825
{\rm stellar\ age}	2.546	6.728	8.953

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.365	-0.493	0.008
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.972	-0.448	0.148

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.502	0.903	1.310
\delta	-0.553	-0.248	-0.049
\tau_1/\tau_2	0.466	0.892	1.371
Q_{PAH}	0.617	2.068	4.193
U_{min}	2.799	7.899	15.432
{\rm log}_{10}(\gamma_e)\,	-3.275	-1.896	-1.058

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.423	-2.950	-0.872
{\rm log}_{10}(\tau_{AGN})\,	1.132	1.695	2.082

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.186	0.307	0.704
0.03-0.10 Gyr	-0.742	0.298	1.111
0.10-0.33 Gyr	-1.557	-0.230	0.430
0.33-1.10 Gyr	-1.686	-0.250	0.314
1.10-3.66 Gyr	-1.720	-0.185	0.242
3.66-12.14 Gyr	-1.682	-0.108	0.242
12.14-13.49 Gyr	-1.388	0.012	0.776

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.352	10.502	10.619
{\rm log}_{10}({\rm SFR})	-0.365	-0.046	0.417
{\rm log}_{10}({\rm sSFR})	-10.833	-10.482	-10.060
{\rm stellar\ age}	5.860	7.817	10.396

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.576	-0.245	0.018
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.211	-0.735	-0.223

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.204	0.360	0.653
\delta	-0.457	-0.056	0.224
\tau_1/\tau_2	0.213	0.602	1.067
Q_{PAH}	0.359	1.255	2.882
U_{min}	3.043	8.006	14.905
{\rm log}_{10}(\gamma_e)\,	-2.440	-1.591	-0.827

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.318	-3.189	-1.978
{\rm log}_{10}(\tau_{AGN})\,	1.177	1.738	2.037

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.420	-0.016	0.333
0.03-0.10 Gyr	-0.816	-0.148	0.496
0.10-0.33 Gyr	-1.176	-0.182	0.299
0.33-1.10 Gyr	-1.008	-0.032	0.516
1.10-3.66 Gyr	-0.699	0.321	0.705
3.66-12.14 Gyr	-0.031	0.518	0.739
12.14-13.49 Gyr	0.038	0.708	1.474