2025xkf

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Information

Transient

Name: AT2025xkf
Right ascension: 23h37m53.51s
Declination: 0d26m16.74s
Discovery Date: Sept. 11, 2025, 8:35 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.032

Host

Name: 3114979
Right ascension: 23h37m53.52s
Declination: 0d26m18.46s
Redshift: 0.089086
Photometric Redshift: 0.088

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	4.4
Transient MWEBV	processed	0.12
Host match	processed	4.18
Host information	processed	0.12
Host MWEBV	processed	0.05
Global aperture construction	processed	0.65
Global aperture photometry	processed	6.08
Validate global photometry	processed	17.29
Global host SED inference	processed	595.99
Local aperture photometry	processed	6.22
Validate local photometry	processed	0.03
Local host SED inference	processed	468.61

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) = 23h37m53.51s, 0d26m16.74s
semi major axis, semi minor axis (arcsec) = 1.2, 1.2
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	29.91	0.3	20.211	0.011	AB
PanSTARRS_r	42.1	0.44	19.839	0.011	AB
DES_r	53.32	0.81	19.583	0.016	AB
PanSTARRS_i	57.9	0.3	19.493	0.006	AB
PanSTARRS_z	70.08	0.84	19.286	0.013	AB
DES_z	90.02	2.11	19.014	0.025	AB
PanSTARRS_y	73.98	1.82	19.227	0.027	AB

Aperture details

RA, DEC (J2000) = 23h37m53.55s, 0d26m18.68s
semi major axis, semi minor axis (arcsec) = 7.38, 4.73
angle (degrees, anti-clockwise from east) = -130.27

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	6.44	0.53	21.877	0.088	AB
GALEX_NUV	13.85	0.52	21.047	0.041	AB
SDSS_u	80.92	4.65	19.130	0.062	AB
SDSS_g	181.89	3.92	18.250	0.023	AB
DES_g	190.25	0.8	18.202	0.005	AB
PanSTARRS_g	200.09	1.14	18.147	0.006	AB
SDSS_r	355.69	5.68	17.522	0.017	AB
PanSTARRS_r	346.25	2.11	17.552	0.007	AB
DES_r	355.17	2.12	17.524	0.006	AB
SDSS_i	494.42	7.86	17.165	0.017	AB
PanSTARRS_i	486.15	1.4	17.183	0.003	AB
PanSTARRS_z	566.03	4.03	17.018	0.008	AB
SDSS_z	626.05	20.39	16.908	0.035	AB
DES_z	569.13	5.72	17.012	0.011	AB
PanSTARRS_y	634.2	8.82	16.894	0.015	AB
2MASS_J	712.05	134.74	15.874	0.205	Vega
2MASS_H	732.81	201.33	15.370	0.298	Vega
2MASS_K	990.81	227.45	14.572	0.249	Vega
WISE_W1	411.87	14.82	14.664	0.039	Vega
WISE_W2	303.3	19.15	14.356	0.069	Vega
WISE_W3	1046.57	94.02	11.177	0.098	Vega
WISE_W4	864.21	591.35	9.938	0.743	Vega

Imaging data

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Spectral Energy Distribution

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Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	8.951	9.227	9.337
{\rm log}_{10}({\rm SFR})	-1.565	-0.748	0.054
{\rm log}_{10}({\rm sSFR})	-10.751	-9.986	-8.966
{\rm stellar\ age}	0.663	4.906	6.743

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.878	-0.261	0.040
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.567	-0.771	0.028

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.155	0.602	1.214
\delta	-0.590	-0.130	0.216
\tau_1/\tau_2	0.619	0.995	1.386
Q_{PAH}	0.923	2.888	5.672
U_{min}	3.509	8.939	16.461
{\rm log}_{10}(\gamma_e)\,	-2.936	-1.712	-0.526

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.791	-0.698	-0.093
{\rm log}_{10}(\tau_{AGN})\,	1.121	1.583	2.011

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.251	-1.154	-0.692
0.03-0.10 Gyr	-1.804	-0.683	0.195
0.10-0.33 Gyr	-1.092	-0.358	0.442
0.33-1.06 Gyr	-1.842	-0.542	-0.079
1.06-3.47 Gyr	-3.057	-0.792	-0.449
3.47-11.33 Gyr	-3.908	-0.921	-0.560
11.33-12.59 Gyr	-3.770	-0.966	-0.335

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.241	10.308	10.429
{\rm log}_{10}({\rm SFR})	0.014	0.411	0.785
{\rm log}_{10}({\rm sSFR})	-10.338	-9.901	-9.548
{\rm stellar\ age}	7.155	8.030	11.278

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.277	-0.885	-0.658
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-0.729	0.261	0.434

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.208	0.298	0.445
\delta	-0.917	-0.728	-0.435
\tau_1/\tau_2	0.525	0.954	1.449
Q_{PAH}	0.937	2.215	3.830
U_{min}	2.680	7.343	15.256
{\rm log}_{10}(\gamma_e)\,	-3.309	-2.347	-1.366

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.227	-1.644	-1.310
{\rm log}_{10}(\tau_{AGN})\,	0.982	1.344	1.747

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.852	-0.294	-0.039
0.03-0.10 Gyr	0.118	0.549	0.934
0.10-0.33 Gyr	-2.593	-0.400	0.143
0.33-1.06 Gyr	-3.826	-0.653	-0.163
1.06-3.47 Gyr	-2.581	-0.432	0.111
3.47-11.33 Gyr	-0.392	0.419	0.571
11.33-12.59 Gyr	0.137	0.800	1.520