2026ihi results

2026ihi results

Information

Transient

Name:	`SN2026ihi`
Right ascension:	`11h45m04.59s`
Declination:	`19d58m15.81s`
Discovery Date:	`April 4, 2026, 9:37 a.m.`
Classification:	`SN II`
Redshift:	`0.017000`
MW E(B-V):	`0.027`

Host

Name:	`NGC3861`
Right ascension:	`11h45m03.87s`
Declination:	`19d58m24.98s`
Redshift:	`0.020044`
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_z	DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	20.11
Transient MWEBV	processed	0.12
Host match	processed	4.7
Host information	processed	0.06
Host MWEBV	processed	0.05
Global aperture construction	processed	0.62
Global aperture photometry	processed	6.34
Validate global photometry	processed	19.38
Global host SED inference	processed	412.37
Local aperture photometry	processed	5.83
Validate local photometry	processed	0.03
Local host SED inference	processed	503.37

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	11h45m04.59s, 19d58m15.81s
semi major axis, semi minor axis (arcsec):	4.93, 4.93
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	25.98	1.19	20.363	0.050	AB
SDSS_u	96.38	5.82	18.940	0.066	AB
SDSS_g	303.91	5.1	17.693	0.018	AB
DES_g	296.5	2.03	17.720	0.007	AB
PanSTARRS_g	325.67	1.7	17.618	0.006	AB
SDSS_r	552.34	6.88	17.044	0.014	AB
PanSTARRS_r	573.72	2.02	17.003	0.004	AB
DES_r	545.53	3.13	17.058	0.006	AB
SDSS_i	742.78	8.58	16.723	0.013	AB
PanSTARRS_i	721.07	2.49	16.755	0.004	AB
PanSTARRS_z	869.19	3.95	16.552	0.005	AB
SDSS_z	772.31	23.98	16.681	0.034	AB
DES_z	900.57	5.41	16.514	0.007	AB
PanSTARRS_y	1101.4	9.92	16.295	0.010	AB
2MASS_J	1020.94	124.76	15.483	0.133	Vega
2MASS_H	1415.35	170.47	14.655	0.131	Vega
2MASS_K	1023.24	193.18	14.537	0.205	Vega

Aperture details

RA, DEC (J2000):	11h45m03.90s, 19d58m25.81s
semi major axis, semi minor axis (arcsec):	40.36, 26.76
angle (degrees, anti-clockwise from east):	-145.1

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	399.12	5.8	17.397	0.016	AB
GALEX_NUV	612.79	6.75	16.932	0.012	AB
SDSS_u	2662.13	37.19	15.337	0.015	AB
SDSS_g	11584.91	31.77	13.740	0.003	AB
PanSTARRS_g	13118.58	10.95	13.605	0.001	AB
PanSTARRS_r	25311.69	13.17	12.892	0.001	AB
SDSS_i	34207.87	57.67	12.565	0.002	AB
PanSTARRS_i	34257.66	16.41	12.563	0.001	AB
PanSTARRS_z	42117.23	25.89	12.339	0.001	AB
SDSS_z	39774.03	153.37	12.401	0.004	AB
DES_z	43225.6	36.12	12.311	0.001	AB
PanSTARRS_y	49789.2	64.22	12.157	0.001	AB
2MASS_J	58155.93	836.01	11.094	0.016	Vega
2MASS_K	56009.59	1293.59	10.192	0.025	Vega
WISE_W2	18094.59	271.45	9.917	0.016	Vega
WISE_W3	30585.15	1629.38	7.512	0.058	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.216	9.316	9.416
{\rm log}_{10}({\rm SFR})	-0.939	-0.621	-0.360
{\rm log}_{10}({\rm sSFR})	-10.241	-9.936	-9.677
{\rm stellar\ age}	6.623	7.760	9.550

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.666	-1.227	-0.723
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.927	0.139	0.345

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.635	1.067	1.343
\delta	0.053	0.228	0.336
\tau_1/\tau_2	0.769	1.099	1.422
Q_{PAH}	0.403	1.558	2.866
U_{min}	2.395	7.686	14.494
{\rm log}_{10}(\gamma_e)\,	-3.576	-2.982	-1.993

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.227	-2.046	-0.938
{\rm log}_{10}(\tau_{AGN})\,	0.834	1.267	1.629

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.122	-0.741	-0.486
0.03-0.10 Gyr	-0.950	-0.587	-0.290
0.10-0.33 Gyr	-1.374	-0.801	-0.439
0.33-1.10 Gyr	-1.728	-1.051	-0.643
1.10-3.66 Gyr	-1.618	-0.869	-0.527
3.66-12.14 Gyr	-0.842	-0.584	-0.436
12.14-13.49 Gyr	-0.906	-0.420	0.116

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.967	11.018	11.104
{\rm log}_{10}({\rm SFR})	-0.152	0.141	0.400
{\rm log}_{10}({\rm sSFR})	-11.173	-10.882	-10.624
{\rm stellar\ age}	8.039	9.197	12.408

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.017	-0.779	-0.605
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.728	-1.014	0.040

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.412	0.576	0.750
\delta	0.020	0.152	0.262
\tau_1/\tau_2	0.355	0.793	1.253
Q_{PAH}	0.536	0.970	1.557
U_{min}	2.912	7.511	14.609
{\rm log}_{10}(\gamma_e)\,	-3.609	-3.028	-2.180

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.518	-3.713	-2.793
{\rm log}_{10}(\tau_{AGN})\,	1.022	1.477	1.898

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.440	0.068	0.332
0.03-0.10 Gyr	-0.455	0.133	0.490
0.10-0.33 Gyr	-1.696	-0.113	0.312
0.33-1.10 Gyr	-1.981	-0.282	0.231
1.10-3.66 Gyr	-1.919	-0.145	0.477
3.66-12.14 Gyr	0.070	1.127	1.260
12.14-13.49 Gyr	0.942	1.599	2.197