2025abnk

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Information

Transient

Name: AT2025abnk
Right ascension: 20h44m14.69s
Declination: 5d44m41.02s
Discovery Date: Oct. 21, 2025, 8:38 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.087

Host

Name:
Right ascension: 20h44m14.71s
Declination: 5d44m40.00s
Redshift: None
Photometric Redshift: 0.044

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	5.3
Transient MWEBV	processed	0.07
Host match	processed	5.27
Host information	processed	0.13
Host MWEBV	processed	0.04
Global aperture construction	processed	0.65
Global aperture photometry	processed	5.35
Validate global photometry	processed	13.16
Global host SED inference	processed	603.91
Local aperture photometry	processed	5.01
Validate local photometry	processed	0.02
Local host SED inference	processed	522.7

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) = 20h44m14.69s, 5d44m41.02s
semi major axis, semi minor axis (arcsec) = 2.3, 2.3
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	227.25	0.67	18.009	0.003	AB
PanSTARRS_g	237.59	0.54	17.960	0.002	AB
PanSTARRS_r	369.22	0.7	17.482	0.002	AB
DES_r	352.07	1.74	17.533	0.005	AB
PanSTARRS_i	445.27	0.63	17.278	0.002	AB
PanSTARRS_z	495.96	1.69	17.161	0.004	AB
DES_z	516.95	4.87	17.116	0.010	AB
PanSTARRS_y	573.44	4.25	17.004	0.008	AB

Aperture details

RA, DEC (J2000) = 20h44m14.62s, 5d44m43.16s
semi major axis, semi minor axis (arcsec) = 18.16, 7.33
angle (degrees, anti-clockwise from east) = -21.32

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
DES_g	1066.57	1.56	16.330	0.002	AB
PanSTARRS_g	1137.11	2.35	16.260	0.002	AB
PanSTARRS_r	1702.73	3.12	15.822	0.002	AB
DES_r	1689.05	3.95	15.831	0.003	AB
PanSTARRS_i	2036.75	2.9	15.628	0.002	AB
DES_z	2204.85	10.53	15.542	0.005	AB
PanSTARRS_y	2521.28	21.23	15.396	0.009	AB
2MASS_H	2545.15	478.31	14.018	0.204	Vega
2MASS_K	1638.78	482.22	14.026	0.319	Vega
WISE_W1	1360.89	32.2	13.366	0.026	Vega
WISE_W3	3717.04	151.56	9.801	0.044	Vega
WISE_W4	4894.88	792.52	8.056	0.176	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})\,	9.315	9.488	9.604
{\rm log}_{10}({\rm SFR})	-1.567	-0.582	0.062
{\rm log}_{10}({\rm sSFR})	-11.073	-10.072	-9.393
{\rm stellar\ age}	3.506	6.275	7.758

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.652	-1.271	-0.835
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.627	-0.425	0.253

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.165	0.367	0.595
\delta	-0.677	-0.251	0.135
\tau_1/\tau_2	0.689	1.062	1.404
Q_{PAH}	0.626	2.029	4.454
U_{min}	3.113	8.731	16.155
{\rm log}_{10}(\gamma_e)\,	-3.249	-1.523	-0.497

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.957	-2.077	-0.850
{\rm log}_{10}(\tau_{AGN})\,	0.939	1.401	1.862

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.200	-1.279	-0.769
0.03-0.10 Gyr	-1.626	-0.464	0.208
0.10-0.33 Gyr	-0.930	-0.176	0.232
0.33-1.09 Gyr	-1.519	-0.459	-0.084
1.09-3.59 Gyr	-1.157	-0.465	-0.186
3.59-11.85 Gyr	-1.322	-0.522	-0.272
11.85-13.17 Gyr	-1.550	-0.509	0.059

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.902	10.089	10.234
{\rm log}_{10}({\rm SFR})	-1.009	-0.203	0.259
{\rm log}_{10}({\rm sSFR})	-11.126	-10.312	-9.767
{\rm stellar\ age}	2.614	5.905	7.556

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.717	-1.295	-0.892
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.698	-0.404	0.313

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.101	0.222	0.352
\delta	-0.665	-0.187	0.232
\tau_1/\tau_2	0.604	0.976	1.366
Q_{PAH}	0.827	2.114	4.385
U_{min}	2.892	8.500	16.085
{\rm log}_{10}(\gamma_e)\,	-3.125	-2.289	-1.226

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.770	-1.739	-1.367
{\rm log}_{10}(\tau_{AGN})\,	0.971	1.296	1.762

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.355	-0.502	-0.016
0.03-0.10 Gyr	-1.345	-0.202	0.373
0.10-0.33 Gyr	-0.692	0.152	0.609
0.33-1.09 Gyr	-0.507	0.270	0.666
1.09-3.59 Gyr	-0.354	0.239	0.575
3.59-11.85 Gyr	-1.130	0.041	0.351
11.85-13.17 Gyr	-1.588	-0.063	0.632