2026epw results

2026epw results

Information

Transient

Name:	`AT2026epw`
Right ascension:	`12h21m57.82s`
Declination:	`8d39m36.01s`
Discovery Date:	`Feb. 23, 2026, 4:39 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.015`

Host

Name:	`J122157.49+084029.46`
Right ascension:	`12h21m57.49s`
Declination:	`8d40m29.46s`
Redshift:	`None`
Photometric Redshift:	`0.008`

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 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	17.57
Transient MWEBV	processed	0.13
Host match	processed	7.3
Host information	processed	0.06
Host MWEBV	processed	0.06
Host spectrum download	not processed	None
Global aperture construction	processed	0.63
Global aperture photometry	processed	5.05
Validate global photometry	processed	15.86
Global host SED inference	processed	386.28
Local aperture photometry	processed	4.92
Validate local photometry	processed	0.02
Local host SED inference	processed	2113.85

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})\,	6.386	6.763	7.091
{\rm log}_{10}({\rm SFR})	-1.927	-1.580	-1.220
{\rm log}_{10}({\rm sSFR})	-8.771	-8.229	-7.937
{\rm stellar\ age}	0.065	1.871	6.496

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.913	-1.753	-1.494
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.401	0.038	0.264

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.061	0.196	0.409
\delta	-0.163	0.210	0.350
\tau_1/\tau_2	0.520	1.048	1.560
Q_{PAH}	0.712	2.813	5.540
U_{min}	3.445	9.804	17.769
{\rm log}_{10}(\gamma_e)\,	-2.961	-1.726	-0.759

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.831	-0.937	-0.191
{\rm log}_{10}(\tau_{AGN})\,	0.945	1.417	1.887

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.770	-1.517	-1.274
0.03-0.10 Gyr	-2.696	-1.640	-1.139
0.10-0.33 Gyr	-5.584	-3.782	-2.545
0.33-1.10 Gyr	-7.085	-4.258	-3.013
1.10-3.65 Gyr	-7.377	-4.133	-2.950
3.65-12.10 Gyr	-8.190	-4.496	-3.026
12.10-13.45 Gyr	-8.588	-4.393	-2.837

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.019	9.102	9.183
{\rm log}_{10}({\rm SFR})	-1.806	-1.547	-1.286
{\rm log}_{10}({\rm sSFR})	-10.918	-10.643	-10.378
{\rm stellar\ age}	6.939	7.856	9.247

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.495	-1.166	-0.893
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.718	-0.249	0.029

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.131	0.239	0.387
\delta	-0.491	-0.135	0.128
\tau_1/\tau_2	0.571	0.910	1.261
Q_{PAH}	0.347	1.038	2.250
U_{min}	2.982	7.702	14.575
{\rm log}_{10}(\gamma_e)\,	-2.949	-2.029	-1.192

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.392	-3.408	-2.410
{\rm log}_{10}(\tau_{AGN})\,	1.034	1.532	1.931

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.966	-1.536	-1.298
0.03-0.10 Gyr	-1.981	-1.572	-1.221
0.10-0.33 Gyr	-1.847	-1.385	-1.042
0.33-1.10 Gyr	-1.900	-1.351	-0.984
1.10-3.65 Gyr	-1.708	-1.119	-0.841
3.65-12.10 Gyr	-0.952	-0.768	-0.640
12.10-13.45 Gyr	-1.110	-0.669	-0.162

Aperture Photometry

Aperture details

RA, DEC (J2000):	12h21m57.82s, 8d39m36.01s
semi major axis, semi minor axis (arcsec):	11.82, 11.82
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	0.82	0.3	24.114	0.403	AB
GALEX_NUV	0.88	0.35	24.038	0.425	AB
SDSS_u	180.34	11.52	18.260	0.069	AB
SDSS_g	22.95	6.15	20.498	0.291	AB
PanSTARRS_g	-11.63	2.48			AB
SDSS_r	-21.01	6.75			AB
PanSTARRS_r	2.0	3.66	23.147	1.984	AB
SDSS_i	-29.29	10.3			AB
PanSTARRS_i	10.01	4.18	21.399	0.453	AB
PanSTARRS_z	59.78	7.79	19.459	0.141	AB
SDSS_z	29.12	38.02	20.239	1.417	AB
PanSTARRS_y	-32.22	17.32			AB
2MASS_J	-419.28	317.43			Vega
2MASS_H	148.4	471.51	17.104	3.450	Vega
2MASS_K	-671.05	589.23			Vega
WISE_W1	-7.18	13.34			Vega
WISE_W2	-4.76	17.76			Vega
WISE_W3	36.77	109.94	14.812	3.246	Vega
WISE_W4	-43.23	346.91			Vega

Aperture details

RA, DEC (J2000):	12h21m57.47s, 8d40m29.43s
semi major axis, semi minor axis (arcsec):	28.1, 19.59
angle (degrees, anti-clockwise from east):	-60.63

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	156.69	1.92	18.412	0.013	AB
GALEX_NUV	225.85	1.74	18.015	0.008	AB
SDSS_u	590.61	22.89	16.972	0.042	AB
SDSS_g	2258.73	17.04	15.515	0.008	AB
PanSTARRS_g	2322.21	5.85	15.485	0.003	AB
SDSS_i	4604.7	26.26	14.742	0.006	AB
SDSS_z	4156.12	78.06	14.853	0.020	AB
PanSTARRS_y	5733.29	34.33	14.504	0.007	AB
2MASS_J	4226.07	634.69	13.940	0.163	Vega
2MASS_H	5575.47	941.64	13.167	0.183	Vega
2MASS_K	4523.03	1177.36	12.924	0.283	Vega
WISE_W1	2385.18	81.54	12.757	0.037	Vega
WISE_W2	1322.46	62.77	12.758	0.052	Vega
WISE_W3	2014.87	263.37	10.465	0.142	Vega