2025tko

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Information

Transient

Name: AT2025tko
Right ascension: 13h27m20.47s
Declination: 2d18m33.11s
Discovery Date: July 31, 2025, 4:05 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.025

Host

Name:
Right ascension: 13h27m20.39s
Declination: 2d18m34.17s
Redshift: None
Photometric Redshift: 0.100

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	36.63
Transient MWEBV	processed	0.15
Host match	processed	7.83
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.76
Global aperture photometry	processed	6.69
Validate global photometry	processed	17.88
Global host SED inference	processed	396.61
Local aperture photometry	processed	7.79
Validate local photometry	processed	0.03
Local host SED inference	processed	469.65

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) = 13h27m20.47s, 2d18m33.11s
semi major axis, semi minor axis (arcsec) = 1.09, 1.09
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_r	15.75	0.31	20.907	0.021	AB
PanSTARRS_z	16.04	0.63	20.887	0.043	AB
DES_z	22.7	0.88	20.510	0.042	AB
PanSTARRS_y	17.09	1.45	20.818	0.092	AB

Aperture details

RA, DEC (J2000) = 13h27m20.39s, 2d18m34.41s
semi major axis, semi minor axis (arcsec) = 5.29, 2.75
angle (degrees, anti-clockwise from east) = -86.04

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	4.91	2.19	22.173	0.485	AB
GALEX_NUV	8.92	0.63	21.524	0.077	AB
SDSS_u	19.8	3.33	20.658	0.183	AB
SDSS_g	55.51	2.3	19.539	0.045	AB
DES_g	60.43	0.39	19.447	0.007	AB
PanSTARRS_g	62.12	0.9	19.417	0.016	AB
SDSS_r	92.99	3.17	18.979	0.037	AB
PanSTARRS_r	87.84	1.36	19.041	0.017	AB
DES_r	94.87	0.81	18.957	0.009	AB
SDSS_i	117.75	4.22	18.723	0.039	AB
PanSTARRS_i	115.56	1.18	18.743	0.011	AB
PanSTARRS_z	126.12	2.15	18.648	0.019	AB
SDSS_z	104.99	13.96	18.847	0.144	AB
DES_z	136.14	2.25	18.565	0.018	AB
PanSTARRS_y	138.36	4.95	18.547	0.039	AB
2MASS_J	9.25	130.16	20.590	15.282	Vega
2MASS_H	444.47	177.11	15.913	0.433	Vega
2MASS_K	-214.8	224.15			Vega
WISE_W1	79.71	9.99	16.447	0.136	Vega
WISE_W2	44.52	12.95	16.440	0.316	Vega
WISE_W3	116.56	44.45	13.560	0.414	Vega
WISE_W4	506.56	324.7	10.518	0.696	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	8.303	8.615	8.851
{\rm log}_{10}({\rm SFR})	-1.261	-0.682	-0.067
{\rm log}_{10}({\rm sSFR})	-9.963	-9.275	-8.464
{\rm stellar\ age}	0.811	4.734	7.146

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.613	-1.000	-0.206
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.411	-0.678	0.125

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.220	0.533	1.116
\delta	-0.622	-0.193	0.160
\tau_1/\tau_2	0.622	1.011	1.405
Q_{PAH}	1.043	2.914	5.199
U_{min}	2.957	7.890	15.601
{\rm log}_{10}(\gamma_e)\,	-2.952	-1.884	-0.841

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.426	-0.467	0.234
{\rm log}_{10}(\tau_{AGN})\,	1.109	1.472	1.861

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.206	-0.711	-0.309
0.03-0.10 Gyr	-1.692	-0.797	0.014
0.10-0.33 Gyr	-2.092	-1.083	-0.388
0.33-1.06 Gyr	-2.849	-1.344	-0.744
1.06-3.45 Gyr	-3.126	-1.488	-1.072
3.45-11.21 Gyr	-3.396	-1.547	-1.050
11.21-12.46 Gyr	-3.355	-1.551	-0.812

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.419	9.528	9.662
{\rm log}_{10}({\rm SFR})	-0.792	-0.445	-0.105
{\rm log}_{10}({\rm sSFR})	-10.386	-9.981	-9.575
{\rm stellar\ age}	3.673	5.529	6.859

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.477	-0.813	-0.351
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.628	-0.457	0.231

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.165	0.314	0.493
\delta	-0.554	-0.174	0.128
\tau_1/\tau_2	0.772	1.086	1.409
Q_{PAH}	1.218	2.988	4.960
U_{min}	2.833	8.195	15.341
{\rm log}_{10}(\gamma_e)\,	-2.332	-1.259	-0.365

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.745	-2.072	-1.172
{\rm log}_{10}(\tau_{AGN})\,	1.034	1.510	1.920

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.928	-0.639	-0.379
0.03-0.10 Gyr	-0.825	-0.402	0.008
0.10-0.33 Gyr	-0.439	-0.085	0.218
0.33-1.06 Gyr	-0.458	-0.093	0.163
1.06-3.45 Gyr	-0.598	-0.313	-0.097
3.45-11.21 Gyr	-0.863	-0.452	-0.200
11.21-12.46 Gyr	-1.116	-0.437	0.051