2025tkm

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Information

Transient

Name: AT2025tkm
Right ascension: 15h53m00.13s
Declination: 64d51m20.55s
Discovery Date: Aug. 7, 2025, 4:18 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.018

Host

Name:
Right ascension: 15h53m00.12s
Declination: 64d51m19.18s
Redshift: 0.086104
Photometric Redshift: 0.072

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	38.97
Transient MWEBV	processed	0.05
Host match	processed	6.46
Host information	processed	0.17
Host MWEBV	processed	0.04
Global aperture construction	processed	0.68
Global aperture photometry	processed	3.78
Validate global photometry	processed	10.78
Global host SED inference	processed	724.59
Local aperture photometry	processed	4.13
Validate local photometry	processed	0.02
Local host SED inference	processed	474.84

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) = 15h53m00.13s, 64d51m20.55s
semi major axis, semi minor axis (arcsec) = 1.24, 1.24
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_r	188.94	0.54	18.209	0.003	AB
PanSTARRS_i	289.0	0.58	17.748	0.002	AB
PanSTARRS_z	348.0	1.04	17.546	0.003	AB
PanSTARRS_y	382.42	1.95	17.444	0.006	AB

Aperture details

RA, DEC (J2000) = 15h53m00.11s, 64d51m19.95s
semi major axis, semi minor axis (arcsec) = 12.31, 6.58
angle (degrees, anti-clockwise from east) = -155.09

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	20.87	4.89	20.601	0.254	AB
GALEX_NUV	52.41	5.12	19.601	0.106	AB
PanSTARRS_g	684.49	2.49	16.812	0.004	AB
PanSTARRS_r	1350.37	3.24	16.074	0.003	AB
PanSTARRS_i	2288.88	3.59	15.501	0.002	AB
PanSTARRS_z	2933.55	6.83	15.232	0.003	AB
PanSTARRS_y	3512.6	13.82	15.036	0.004	AB
2MASS_J	4698.74	209.01	13.825	0.048	Vega
2MASS_H	5546.9	323.39	13.172	0.063	Vega
2MASS_K	5626.14	375.19	12.687	0.072	Vega
WISE_W1	2273.9	18.65	12.809	0.009	Vega
WISE_W2	1445.97	19.91	12.661	0.015	Vega
WISE_W3	2901.0	60.87	10.070	0.023	Vega
WISE_W4	1854.5	315.69	9.109	0.185	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})\,	9.778	10.049	10.218
{\rm log}_{10}({\rm SFR})	-0.856	-0.149	0.568
{\rm log}_{10}({\rm sSFR})	-10.997	-10.218	-9.257
{\rm stellar\ age}	3.054	6.777	9.245

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.541	-0.926	-0.472
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.643	-0.926	-0.049

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.425	0.840	1.124
\delta	-0.754	-0.497	-0.199
\tau_1/\tau_2	0.567	0.962	1.355
Q_{PAH}	0.644	2.208	4.277
U_{min}	2.914	8.176	15.590
{\rm log}_{10}(\gamma_e)\,	-3.265	-1.839	-0.732

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.640	-1.836	-0.605
{\rm log}_{10}(\tau_{AGN})\,	1.061	1.464	1.930

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.760	-0.241	0.170
0.03-0.10 Gyr	-1.307	-0.170	0.676
0.10-0.33 Gyr	-1.703	-0.245	0.447
0.33-1.07 Gyr	-1.983	-0.269	0.343
1.07-3.48 Gyr	-2.022	-0.177	0.269
3.48-11.36 Gyr	-1.359	0.028	0.360
11.36-12.63 Gyr	-1.091	0.174	0.999

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	11.113	11.182	11.224
{\rm log}_{10}({\rm SFR})	0.338	0.741	1.118
{\rm log}_{10}({\rm sSFR})	-10.854	-10.412	-10.027
{\rm stellar\ age}	8.902	11.651	11.952

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.425	-0.252	-0.144
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.452	0.186	0.399

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.207	0.288	0.431
\delta	-0.875	-0.656	-0.380
\tau_1/\tau_2	0.722	1.214	1.657
Q_{PAH}	0.234	0.736	1.544
U_{min}	2.451	7.084	14.009
{\rm log}_{10}(\gamma_e)\,	-2.928	-2.038	-1.362

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.662	-4.014	-3.013
{\rm log}_{10}(\tau_{AGN})\,	1.083	1.584	1.929

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.150	0.494	0.786
0.03-0.10 Gyr	0.221	0.799	1.222
0.10-0.33 Gyr	-2.513	-0.578	0.251
0.33-1.07 Gyr	-4.768	-1.648	-0.405
1.07-3.48 Gyr	-3.377	-1.394	-0.306
3.48-11.36 Gyr	-1.122	0.282	1.255
11.36-12.63 Gyr	1.778	2.303	2.364