2025zkm

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Information

Transient

Name: AT2025zkm
Right ascension: 16h47m49.56s
Declination: 16d32m28.66s
Discovery Date: Sept. 26, 2025, 8:04 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.048

Host

Name:
Right ascension: 16h47m50.92s
Declination: 16d32m38.69s
Redshift: None
Photometric Redshift: 0.103

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	4.5
Cutout download	processed	15.71
Global aperture construction	processed	0.67
Local aperture photometry	processed	6.33
Global aperture photometry	processed	7.14
Validate local photometry	processed	0.02
Validate global photometry	processed	16.73
Host information	processed	0.16
Global host SED inference	processed	439.58
Local host SED inference	failed	0.0
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.03
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) = 16h47m49.56s, 16d32m28.66s
semi major axis, semi minor axis (arcsec) = 1.06, 1.06
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_z	1.3	0.59	23.613	0.489	AB
PanSTARRS_y	3.47	1.54	22.550	0.482	AB

Aperture details

RA, DEC (J2000) = 16h47m50.90s, 16d32m39.16s
semi major axis, semi minor axis (arcsec) = 12.27, 10.19
angle (degrees, anti-clockwise from east) = -105.24

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	63.58	8.99	19.392	0.154	AB
SDSS_g	397.25	5.87	17.402	0.016	AB
DES_g	390.52	1.53	17.421	0.004	AB
PanSTARRS_g	377.11	2.25	17.459	0.006	AB
SDSS_r	671.56	8.02	16.832	0.013	AB
PanSTARRS_r	702.32	2.53	16.784	0.004	AB
DES_r	754.12	3.2	16.706	0.005	AB
SDSS_i	967.03	10.73	16.436	0.012	AB
PanSTARRS_i	937.57	3.28	16.470	0.004	AB
PanSTARRS_z	1128.32	8.23	16.269	0.008	AB
SDSS_z	1225.4	27.93	16.179	0.025	AB
PanSTARRS_y	1217.08	16.32	16.187	0.015	AB
2MASS_J	1525.41	263.62	15.047	0.188	Vega
2MASS_H	1891.9	471.89	14.340	0.271	Vega
2MASS_K	1928.88	488.89	13.849	0.275	Vega
WISE_W1	914.49	24.38	13.798	0.029	Vega
WISE_W2	624.46	25.03	13.572	0.044	Vega
WISE_W3	1557.05	126.54	10.745	0.088	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})\,	10.483	10.631	10.737
{\rm log}_{10}({\rm SFR})	-1.356	-0.537	0.127
{\rm log}_{10}({\rm sSFR})	-11.935	-11.159	-10.538
{\rm stellar\ age}	2.573	5.731	7.186

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.066	-0.641	-0.376
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.660	-0.791	0.196

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.108	0.274	0.548
\delta	-0.562	-0.122	0.224
\tau_1/\tau_2	0.537	0.911	1.330
Q_{PAH}	1.113	2.794	5.103
U_{min}	2.317	7.597	15.289
{\rm log}_{10}(\gamma_e)\,	-3.153	-2.213	-0.829

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.915	-1.801	-1.283
{\rm log}_{10}(\tau_{AGN})\,	1.021	1.423	1.814

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.413	-0.402	0.041
0.03-0.10 Gyr	-3.040	-0.766	0.176
0.10-0.33 Gyr	-2.362	-0.539	0.552
0.33-1.06 Gyr	-0.466	0.626	1.117
1.06-3.44 Gyr	0.474	0.910	1.214
3.44-11.17 Gyr	-0.688	0.631	0.897
11.17-12.41 Gyr	-1.330	0.481	1.152