2025xtn

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Information

Transient

Name: AT2025xtn
Right ascension: 22h36m12.49s
Declination: 22d50m11.56s
Discovery Date: Sept. 16, 2025, 8:41 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.039

Host

Name:
Right ascension: 22h36m12.50s
Declination: 22d50m10.25s
Redshift: None
Photometric Redshift: 0.125

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	5.84
Cutout download	processed	17.7
Global aperture construction	processed	0.65
Local aperture photometry	processed	6.81
Global aperture photometry	processed	6.42
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	17.81
Host information	processed	0.13
Global host SED inference	processed	456.71
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.04
Processing status	blocked	N/A	N/A

Cutout Download Report

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:

Aperture Photometry

Aperture details

RA, DEC (J2000) = 22h36m12.49s, 22d50m11.56s
semi major axis, semi minor axis (arcsec) = 0.89, 0.89
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 22h36m12.50s, 22d50m10.40s
semi major axis, semi minor axis (arcsec) = 6.69, 4.14
angle (degrees, anti-clockwise from east) = -20.61

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	3.58	1.46	22.515	0.441	AB
GALEX_NUV	2.73	1.39	22.811	0.553	AB
SDSS_u	27.13	4.47	20.316	0.179	AB
SDSS_g	154.93	3.56	18.425	0.025	AB
DES_g	173.91	0.79	18.299	0.005	AB
PanSTARRS_g	181.26	1.19	18.254	0.007	AB
SDSS_r	404.27	5.63	17.383	0.015	AB
PanSTARRS_r	425.26	1.39	17.328	0.004	AB
DES_r	455.12	1.82	17.255	0.004	AB
SDSS_i	615.34	7.34	16.927	0.013	AB
PanSTARRS_i	625.02	1.46	16.910	0.003	AB
PanSTARRS_z	818.13	4.0	16.618	0.005	AB
SDSS_z	887.99	17.92	16.529	0.022	AB
DES_z	890.76	6.13	16.526	0.007	AB
PanSTARRS_y	994.52	9.92	16.406	0.011	AB
2MASS_J	1431.61	141.32	15.116	0.107	Vega
2MASS_H	1501.82	182.78	14.591	0.132	Vega
2MASS_K	1023.62	277.59	14.537	0.294	Vega
WISE_W2	341.1	20.18	14.229	0.064	Vega
WISE_W3	139.5	77.66	13.365	0.604	Vega
WISE_W4	-131.57	431.83			Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.795	10.890	11.019
{\rm log}_{10}({\rm SFR})	-2.677	-0.425	0.401
{\rm log}_{10}({\rm sSFR})	-13.702	-11.306	-10.513
{\rm stellar\ age}	6.815	7.793	11.414

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.035	-0.695	-0.486
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.365	-0.723	-0.181

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.308	0.472	0.632
\delta	-0.884	-0.620	-0.207
\tau_1/\tau_2	0.575	0.977	1.407
Q_{PAH}	1.563	3.420	5.389
U_{min}	3.023	8.896	17.013
{\rm log}_{10}(\gamma_e)\,	-2.894	-1.732	-0.600

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.562	-3.773	-2.695
{\rm log}_{10}(\tau_{AGN})\,	1.100	1.658	1.999

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.371	-0.636	0.151
0.03-0.10 Gyr	-3.586	-0.482	0.494
0.10-0.32 Gyr	-3.512	-0.736	0.439
0.32-1.05 Gyr	-3.747	-0.795	0.411
1.05-3.38 Gyr	-2.666	-0.087	0.821
3.38-10.94 Gyr	-0.624	0.971	1.194
10.94-12.15 Gyr	0.366	1.347	2.170