2025xsn results

2025xsn results

Information

Transient

Name:	`AT2025xsn`
Right ascension:	`14h12m30.51s`
Declination:	`11d14m35.82s`
Discovery Date:	`Sept. 16, 2025, 2:42 a.m.`
Classification:	`None`
Redshift:	`None`
MW E(B-V):	`0.019`

Host

Name:	`UGC09089`
Right ascension:	`14h12m29.87s`
Declination:	`11d14m25.64s`
Redshift:	`0.028169`
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_u SDSS_g DES_g DES_z	SDSS_r SDSS_z DES_r DES_i DES_Y

Processing Status: completed

Task Name	Status	Time (s)
Cutout download	processed	11.84
Transient MWEBV	processed	0.04
Host match	processed	3.8
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.62
Global aperture photometry	processed	5.1
Validate global photometry	processed	15.09
Global host SED inference	processed	645.21
Local aperture photometry	processed	5.55
Validate local photometry	processed	0.02
Local host SED inference	processed	481.04

Imaging data

Spectral Energy Distribution

Aperture Photometry

Aperture details

RA, DEC (J2000):	14h12m30.51s, 11d14m35.82s
semi major axis, semi minor axis (arcsec):	3.54, 3.54
angle (degrees, anti-clockwise from east):	0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	63.63	3.64	19.391	0.062	AB
SDSS_g	258.75	4.28	17.868	0.018	AB
DES_g	274.65	1.14	17.803	0.005	AB
PanSTARRS_g	279.97	1.08	17.782	0.004	AB
PanSTARRS_r	526.67	1.07	17.096	0.002	AB
SDSS_i	723.62	7.37	16.751	0.011	AB
PanSTARRS_i	726.54	1.22	16.747	0.002	AB
PanSTARRS_z	905.29	2.46	16.508	0.003	AB
DES_z	972.55	7.29	16.430	0.008	AB
PanSTARRS_y	1140.85	5.36	16.257	0.005	AB
2MASS_J	1528.86	99.75	15.044	0.071	Vega
2MASS_H	1726.9	119.06	14.439	0.075	Vega
2MASS_K	1477.8	172.72	14.138	0.127	Vega

Aperture details

RA, DEC (J2000):	14h12m29.85s, 11d14m26.29s
semi major axis, semi minor axis (arcsec):	33.21, 12.77
angle (degrees, anti-clockwise from east):	-126.83

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	112.83	10.56	18.769	0.102	AB
GALEX_NUV	192.25	8.95	18.190	0.051	AB
SDSS_g	6044.8	20.93	14.447	0.004	AB
DES_g	5071.07	5.04	14.637	0.001	AB
PanSTARRS_g	6552.6	6.31	14.359	0.001	AB
PanSTARRS_r	12717.08	6.05	13.639	0.001	AB
SDSS_i	18219.3	37.66	13.249	0.002	AB
PanSTARRS_i	18042.58	6.82	13.259	0.000	AB
PanSTARRS_z	22695.6	14.12	13.010	0.001	AB
DES_z	20127.2	33.51	13.141	0.002	AB
PanSTARRS_y	28514.85	31.12	12.762	0.001	AB
2MASS_J	36096.67	585.15	11.611	0.018	Vega
2MASS_H	46175.07	698.93	10.871	0.016	Vega
2MASS_K	37318.67	1015.77	10.632	0.030	Vega
WISE_W1	18510.68	72.68	10.532	0.004	Vega
WISE_W2	10599.03	75.07	10.498	0.008	Vega
WISE_W3	15248.97	209.54	8.268	0.015	Vega
WISE_W4	13395.0	1161.55	6.963	0.094	Vega

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.410	9.552	9.678
{\rm log}_{10}({\rm SFR})	-1.704	-0.846	-0.184
{\rm log}_{10}({\rm sSFR})	-11.298	-10.417	-9.688
{\rm stellar\ age}	5.257	7.347	9.192

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.364	-0.737	-0.309
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.523	-0.146	0.242

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.359	0.939	1.334
\delta	-0.518	-0.157	0.183
\tau_1/\tau_2	0.632	0.993	1.383
Q_{PAH}	0.552	2.030	4.278
U_{min}	2.545	7.542	14.580
{\rm log}_{10}(\gamma_e)\,	-3.483	-2.336	-1.205

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.174	-1.963	-0.709
{\rm log}_{10}(\tau_{AGN})\,	0.920	1.417	1.873

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.666	-0.832	-0.326
0.03-0.10 Gyr	-2.014	-0.927	-0.111
0.10-0.33 Gyr	-2.007	-0.857	-0.168
0.33-1.10 Gyr	-1.824	-0.748	-0.261
1.10-3.64 Gyr	-1.368	-0.526	-0.198
3.64-12.04 Gyr	-0.901	-0.397	-0.189
12.04-13.38 Gyr	-0.943	-0.271	0.337

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	11.017	11.089	11.195
{\rm log}_{10}({\rm SFR})	-0.602	-0.229	0.084
{\rm log}_{10}({\rm sSFR})	-11.702	-11.297	-10.974
{\rm stellar\ age}	8.087	10.299	12.633

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.927	-0.658	-0.474
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.797	0.230	0.424

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.450	0.585	0.769
\delta	-0.083	0.057	0.202
\tau_1/\tau_2	0.123	0.391	0.795
Q_{PAH}	0.484	0.954	1.577
U_{min}	2.733	7.442	14.589
{\rm log}_{10}(\gamma_e)\,	-3.666	-2.971	-2.109

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.472	-3.728	-2.859
{\rm log}_{10}(\tau_{AGN})\,	1.039	1.546	1.920

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.794	-0.075	0.256
0.03-0.10 Gyr	-2.154	-0.473	0.057
0.10-0.33 Gyr	-2.628	-0.634	0.003
0.33-1.10 Gyr	-3.537	-0.837	-0.099
1.10-3.64 Gyr	-2.571	-0.524	0.380
3.64-12.04 Gyr	-0.815	1.041	1.292
12.04-13.38 Gyr	1.071	1.926	2.312