2026gud results

2026gud results

Information

Transient

Name:	`SN2026gud`
Right ascension:	`9h25m46.43s`
Declination:	`2d13m46.77s`
Discovery Date:	`March 20, 2026, 11 a.m.`
Classification:	`SN Ia`
Redshift:	`0.021800`
MW E(B-V):

Host

Name:	`NGC2877`
Right ascension:	`9h25m46.99s`
Declination:	`2d13m44.49s`
Redshift:	`0.022572`
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	16.64
Transient MWEBV	processed	0.05
Host match	processed	4.06
Host information	processed	0.12
Host MWEBV	processed	0.2
Global aperture construction	processed	0.63
Global aperture photometry	processed	4.72
Validate global photometry	processed	16.44
Global host SED inference	processed	394.19
Local aperture photometry	processed	6.99
Validate local photometry	processed	0.03
Local host SED inference	processed	432.15

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	9h25m46.43s, 2d13m46.77s
semi major axis, semi minor axis (arcsec):	4.39, 4.39
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	25.8	1.33	20.371	0.056	AB
SDSS_u	152.55	9.61	18.441	0.068	AB
SDSS_g	571.48	6.96	17.008	0.013	AB
PanSTARRS_g	611.68	1.25	16.934	0.002	AB
SDSS_r	888.56	8.97	16.528	0.011	AB
PanSTARRS_r	1017.34	1.2	16.381	0.001	AB
SDSS_i	1235.16	12.44	16.171	0.011	AB
PanSTARRS_i	1307.46	1.77	16.109	0.001	AB
PanSTARRS_z	1509.93	3.26	15.953	0.002	AB
SDSS_z	1573.79	44.34	15.908	0.031	AB
PanSTARRS_y	1868.67	8.92	15.721	0.005	AB
2MASS_J	2246.18	120.7	14.626	0.058	Vega
2MASS_H	2776.68	182.85	13.924	0.071	Vega
2MASS_K	2222.9	233.32	13.695	0.114	Vega

Aperture details

RA, DEC (J2000):	9h25m46.99s, 2d13m44.74s
semi major axis, semi minor axis (arcsec):	20.31, 17.08
angle (degrees, anti-clockwise from east):	-47.96

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	271.73	4.4	17.815	0.018	AB
GALEX_NUV	589.25	3.69	16.974	0.007	AB
SDSS_g	6278.39	24.6	14.405	0.004	AB
PanSTARRS_g	6483.3	5.0	14.371	0.001	AB
SDSS_r	10025.16	32.3	13.897	0.003	AB
PanSTARRS_r	11025.36	4.78	13.794	0.000	AB
SDSS_i	14146.34	47.24	13.523	0.004	AB
PanSTARRS_i	14523.48	7.25	13.495	0.001	AB
PanSTARRS_z	16973.81	13.39	13.326	0.001	AB
SDSS_z	18383.4	186.8	13.239	0.011	AB
PanSTARRS_y	20904.92	36.89	13.099	0.002	AB
2MASS_J	26292.64	515.61	11.956	0.021	Vega
2MASS_H	30530.73	781.72	11.321	0.028	Vega
2MASS_K	26145.58	999.39	11.019	0.042	Vega
WISE_W1	14866.73	84.71	10.770	0.006	Vega
WISE_W2	9804.51	97.43	10.582	0.011	Vega
WISE_W3	60166.6	371.8	6.778	0.007	Vega
WISE_W4	80016.35	5478.33	5.022	0.074	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.380	9.504	9.618
{\rm log}_{10}({\rm SFR})	-0.896	-0.523	-0.180
{\rm log}_{10}({\rm sSFR})	-10.416	-10.042	-9.673
{\rm stellar\ age}	3.363	6.270	7.950

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.595	-1.087	-0.556
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.365	-0.722	-0.175

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.556	0.966	1.223
\delta	-0.154	0.032	0.207
\tau_1/\tau_2	0.621	0.944	1.282
Q_{PAH}	0.386	1.735	3.423
U_{min}	2.402	7.504	14.712
{\rm log}_{10}(\gamma_e)\,	-3.339	-2.253	-1.439

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.454	-2.633	-1.097
{\rm log}_{10}(\tau_{AGN})\,	0.910	1.444	1.983

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.788	-0.428	-0.161
0.03-0.10 Gyr	-1.107	-0.586	-0.168
0.10-0.33 Gyr	-0.983	-0.474	-0.065
0.33-1.10 Gyr	-0.784	-0.291	0.117
1.10-3.65 Gyr	-0.794	-0.374	-0.092
3.65-12.11 Gyr	-1.120	-0.503	-0.271
12.11-13.46 Gyr	-1.313	-0.495	0.025

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.337	10.494	10.607
{\rm log}_{10}({\rm SFR})	0.693	0.951	1.264
{\rm log}_{10}({\rm sSFR})	-9.874	-9.541	-9.119
{\rm stellar\ age}	5.984	7.559	9.255

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.604	-0.362	-0.208
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.711	-0.754	0.211

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.413	0.606	0.823
\delta	-0.493	-0.303	-0.175
\tau_1/\tau_2	0.779	1.145	1.496
Q_{PAH}	0.682	1.229	2.119
U_{min}	2.214	6.394	12.676
{\rm log}_{10}(\gamma_e)\,	-3.487	-2.767	-1.961

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.458	-2.427	-1.839
{\rm log}_{10}(\tau_{AGN})\,	1.089	1.525	1.931

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.348	0.685	0.880
0.03-0.10 Gyr	0.715	1.019	1.387
0.10-0.33 Gyr	-0.288	0.418	0.833
0.33-1.10 Gyr	-0.618	0.094	0.443
1.10-3.65 Gyr	-0.414	0.260	0.554
3.65-12.11 Gyr	0.193	0.557	0.740
12.11-13.46 Gyr	0.065	0.723	1.284