2026bku

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Information

Transient

Name: AT2026bku
Right ascension: 7h44m54.56s
Declination: -0d03m27.61s
Discovery Date: Jan. 15, 2026, 10:38 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.044

Host

Name: 21705
Right ascension: 7h44m53.79s
Declination: -0d03m25.13s
Redshift: 0.027616
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	17.29
Transient MWEBV	processed	0.13
Host match	processed	5.0
Host information	processed	0.13
Host MWEBV	processed	0.05
Global aperture construction	processed	3.97
Global aperture photometry	processed	4.3
Validate global photometry	processed	12.27
Global host SED inference	processed	743.19
Local aperture photometry	processed	4.08
Validate local photometry	processed	0.02
Local host SED inference	processed	523.12

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) = 7h44m54.56s, -0d03m27.61s
semi major axis, semi minor axis (arcsec) = 3.61, 3.61
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	839.67	1.02	16.590	0.001	AB
PanSTARRS_r	1215.75	1.48	16.188	0.001	AB
PanSTARRS_i	1420.75	1.67	16.019	0.001	AB
PanSTARRS_z	1586.2	2.82	15.899	0.002	AB
PanSTARRS_y	1800.73	6.35	15.761	0.004	AB
2MASS_J	2198.33	91.4	14.650	0.045	Vega
2MASS_H	2550.05	141.99	14.016	0.060	Vega
2MASS_K	2219.92	169.46	13.696	0.083	Vega

Aperture details

RA, DEC (J2000) = 7h44m54.12s, -0d03m25.46s
semi major axis, semi minor axis (arcsec) = 38.52, 13.47
angle (degrees, anti-clockwise from east) = -90.48

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	828.93	21.95	16.604	0.029	AB
PanSTARRS_g	7990.39	5.62	14.144	0.001	AB
PanSTARRS_r	11820.74	8.31	13.718	0.001	AB
PanSTARRS_i	13999.59	10.07	13.535	0.001	AB
PanSTARRS_z	15353.08	17.22	13.435	0.001	AB
PanSTARRS_y	17564.02	39.54	13.288	0.002	AB
2MASS_K	20609.46	1076.84	11.277	0.057	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})\,	9.316	9.493	9.622
{\rm log}_{10}({\rm SFR})	-0.752	-0.299	0.159
{\rm log}_{10}({\rm sSFR})	-10.269	-9.799	-9.235
{\rm stellar\ age}	2.511	5.530	7.467

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.371	-0.735	-0.420
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.863	-1.574	-0.261

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.165	0.391	0.663
\delta	-0.652	-0.103	0.242
\tau_1/\tau_2	0.681	1.034	1.397
Q_{PAH}	0.599	1.698	3.433
U_{min}	2.677	7.914	15.541
{\rm log}_{10}(\gamma_e)\,	-3.291	-1.925	-1.155

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.760	-1.735	-0.880
{\rm log}_{10}(\tau_{AGN})\,	0.822	1.286	1.815

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.990	-0.531	-0.225
0.03-0.10 Gyr	-0.826	-0.232	0.278
0.10-0.33 Gyr	-0.524	-0.027	0.403
0.33-1.10 Gyr	-0.830	-0.296	0.050
1.10-3.64 Gyr	-1.008	-0.427	-0.160
3.64-12.05 Gyr	-1.476	-0.593	-0.280
12.05-13.39 Gyr	-1.598	-0.618	-0.032

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.393	10.601	10.740
{\rm log}_{10}({\rm SFR})	0.338	0.789	1.326
{\rm log}_{10}({\rm sSFR})	-10.265	-9.826	-9.187
{\rm stellar\ age}	2.262	6.542	8.384

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.729	-1.153	-0.540
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.676	-0.785	0.248

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.177	0.607	1.008
\delta	-0.354	0.079	0.303
\tau_1/\tau_2	0.545	1.086	1.579
Q_{PAH}	0.816	2.978	5.578
U_{min}	2.411	7.176	14.627
{\rm log}_{10}(\gamma_e)\,	-3.384	-2.236	-1.444

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.650	-3.627	-0.786
{\rm log}_{10}(\tau_{AGN})\,	1.123	1.671	1.971

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.261	0.528	0.827
0.03-0.10 Gyr	0.281	0.844	1.466
0.10-0.33 Gyr	0.041	0.760	1.447
0.33-1.10 Gyr	-0.344	0.533	1.125
1.10-3.64 Gyr	-0.607	0.505	0.887
3.64-12.05 Gyr	-1.130	0.530	0.829
12.05-13.39 Gyr	-1.177	0.597	1.274