2026xby results

2026xby results

Information

Transient

Name:	`SN2026xby`
Right ascension:	`0h38m51.35s`
Declination:	`-16d06m32.27s`
Discovery Date:	`Aug. 3, 2026, 10:32 a.m.`
Classification:	`SN I`
Redshift:	`0.019700`
MW E(B-V):	`0.020`

Host

Name:	`J003851.42-160636.22`
Object ID:	`9906615454337212`
Catalog Name:	`decals`
Catalog Release:	`dr9`
Right ascension:	`0h38m51.42s`
Declination:	`-16d06m36.22s`
Redshift:	`None`
Photometric Redshift:	`0.026`

Cutout Download Report

Downloadable	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_i DES_z	SDSS_i SDSS_r SDSS_u SDSS_z SDSS_g DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	8.98
Transient MWEBV	processed	0.09
Host match	processed	5.28
Host information	processed	0.13
Host MWEBV	processed	0.1
Host spectrum download	not processed	None
Global aperture construction	processed	0.63
Global aperture photometry	processed	5.66
Validate global photometry	processed	15.46
Global host SED inference	processed	381.18
Local aperture photometry	processed	5.96
Validate local photometry	processed	0.03
Local host SED inference	processed	459.03

Imaging data

Spectral Energy Distribution

Host Galaxy Spectrum

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.719	9.816	9.923
{\rm log}_{10}({\rm SFR})	-1.017	-0.622	-0.156
{\rm log}_{10}({\rm sSFR})	-10.877	-10.438	-9.926
{\rm stellar\ age}	6.554	7.881	10.151

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.692	-1.208	-0.702
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.510	-0.401	0.096

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.631	0.912	1.192
\delta	-0.159	-0.015	0.208
\tau_1/\tau_2	0.553	0.916	1.289
Q_{PAH}	0.288	1.180	2.931
U_{min}	2.800	8.076	15.312
{\rm log}_{10}(\gamma_e)\,	-3.262	-2.020	-1.222

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.303	-2.944	-1.456
{\rm log}_{10}(\tau_{AGN})\,	0.988	1.469	2.004

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.784	-0.470	-0.233
0.03-0.10 Gyr	-1.583	-0.765	-0.110
0.10-0.33 Gyr	-1.759	-0.741	-0.175
0.33-1.10 Gyr	-1.743	-0.683	-0.223
1.10-3.66 Gyr	-1.403	-0.388	-0.003
3.66-12.15 Gyr	-0.512	-0.103	0.073
12.15-13.49 Gyr	-0.506	0.069	0.755

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.049	10.122	10.194
{\rm log}_{10}({\rm SFR})	-0.326	-0.115	0.096
{\rm log}_{10}({\rm sSFR})	-10.444	-10.235	-10.024
{\rm stellar\ age}	6.973	7.931	9.340

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.921	-0.640	-0.411
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.292	-0.123	0.119

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.377	0.537	0.698
\delta	-0.348	-0.170	-0.032
\tau_1/\tau_2	0.710	1.038	1.388
Q_{PAH}	0.521	1.137	2.010
U_{min}	2.506	6.946	13.694
{\rm log}_{10}(\gamma_e)\,	-3.334	-2.285	-1.760

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.002	-2.983	-2.197
{\rm log}_{10}(\tau_{AGN})\,	0.999	1.437	1.901

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.280	-0.102	0.046
0.03-0.10 Gyr	-0.430	-0.111	0.146
0.10-0.33 Gyr	-0.682	-0.244	0.041
0.33-1.10 Gyr	-0.818	-0.305	-0.013
1.10-3.66 Gyr	-0.660	-0.109	0.173
3.66-12.15 Gyr	0.059	0.246	0.372
12.15-13.49 Gyr	-0.052	0.391	0.880

Aperture Photometry

Aperture details

RA, DEC (J2000):	0h38m51.35s, -16d06m32.27s
semi major axis, semi minor axis (arcsec):	5.01, 5.01
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	34.24	5.76	20.064	0.183	AB
DES_g	1010.53	1.41	16.389	0.002	AB
PanSTARRS_g	1023.07	1.46	16.375	0.002	AB
PanSTARRS_r	1793.03	1.45	15.766	0.001	AB
DES_r	1950.96	4.77	15.674	0.003	AB
PanSTARRS_i	2460.1	1.89	15.423	0.001	AB
DES_i	2577.87	4.24	15.372	0.002	AB
PanSTARRS_z	2967.78	3.32	15.219	0.001	AB
DES_z	3156.06	12.5	15.152	0.004	AB
PanSTARRS_y	3656.91	9.34	14.992	0.003	AB
2MASS_J	4049.98	111.69	13.986	0.030	Vega
2MASS_H	5219.73	174.76	13.238	0.036	Vega
2MASS_K	4181.0	191.38	13.009	0.050	Vega

Aperture details

RA, DEC (J2000):	0h38m51.42s, -16d06m36.59s
semi major axis, semi minor axis (arcsec):	23.07, 10.03
angle (degrees, anti-clockwise from east):	348.75

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	122.15	10.88	18.683	0.097	AB
GALEX_NUV	216.8	8.79	18.060	0.044	AB
DES_g	2874.36	2.49	15.254	0.001	AB
PanSTARRS_g	2840.18	4.01	15.267	0.002	AB
PanSTARRS_r	4799.05	3.82	14.697	0.001	AB
DES_r	5330.25	8.09	14.583	0.002	AB
PanSTARRS_i	6463.08	5.26	14.374	0.001	AB
DES_i	6898.07	7.18	14.303	0.001	AB
PanSTARRS_z	7738.81	9.54	14.178	0.001	AB
DES_z	8344.85	20.69	14.096	0.003	AB
PanSTARRS_y	9396.57	28.12	13.968	0.003	AB
2MASS_J	10746.34	341.53	12.927	0.035	Vega
2MASS_H	12600.82	536.47	12.281	0.046	Vega
2MASS_K	10439.74	589.69	12.015	0.061	Vega
WISE_W1	5821.01	51.83	11.789	0.010	Vega
WISE_W2	3595.78	56.75	11.672	0.017	Vega
WISE_W3	14610.94	215.94	8.314	0.016	Vega
WISE_W4	18701.1	1465.62	6.600	0.085	Vega