2025ahtj

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Information

Transient

Name: AT2025ahtj
Right ascension: 15h24m20.10s
Declination: 26d37m59.66s
Discovery Date: Dec. 20, 2025, 1:09 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.029

Host

Name: 1783255
Right ascension: 15h24m20.40s
Declination: 26d38m03.30s
Redshift: None
Photometric Redshift: 0.069

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	7.01
Transient MWEBV	processed	0.04
Host match	processed	6.22
Host information	processed	0.09
Host MWEBV	processed	0.05
Global aperture construction	processed	0.64
Global aperture photometry	processed	4.89
Validate global photometry	processed	17.1
Global host SED inference	processed	656.48
Local aperture photometry	processed	4.95
Validate local photometry	processed	0.02
Local host SED inference	processed	506.14

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) = 15h24m20.10s, 26d37m59.66s
semi major axis, semi minor axis (arcsec) = 1.51, 1.51
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	15.43	0.24	20.929	0.017	AB
PanSTARRS_g	15.29	0.36	20.939	0.026	AB
PanSTARRS_r	21.98	0.46	20.545	0.023	AB
PanSTARRS_i	26.29	0.54	20.351	0.022	AB
PanSTARRS_z	29.28	1.19	20.234	0.044	AB
DES_z	29.78	1.68	20.215	0.061	AB
PanSTARRS_y	28.72	2.56	20.255	0.097	AB

Aperture details

RA, DEC (J2000) = 15h24m20.44s, 26d38m03.60s
semi major axis, semi minor axis (arcsec) = 15.05, 7.06
angle (degrees, anti-clockwise from east) = -138.06

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	52.41	5.48	19.601	0.113	AB
GALEX_NUV	69.62	3.26	19.293	0.051	AB
DES_g	401.01	1.36	17.392	0.004	AB
PanSTARRS_g	385.51	2.45	17.435	0.007	AB
PanSTARRS_r	587.67	3.14	16.977	0.006	AB
PanSTARRS_i	735.85	3.66	16.733	0.005	AB
PanSTARRS_z	897.49	8.29	16.517	0.010	AB
PanSTARRS_y	885.56	17.63	16.532	0.022	AB
2MASS_J	860.12	281.4	15.669	0.355	Vega
2MASS_H	915.29	402.73	15.129	0.478	Vega
2MASS_K	1045.85	484.33	14.514	0.503	Vega
WISE_W1	599.5	16.62	14.257	0.030	Vega
WISE_W2	377.45	20.0	14.119	0.058	Vega
WISE_W3	872.16	74.89	11.375	0.093	Vega
WISE_W4	31.27	307.99	13.542	10.694	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})\,	8.382	8.571	8.720
{\rm log}_{10}({\rm SFR})	-2.296	-1.342	-0.470
{\rm log}_{10}({\rm sSFR})	-10.878	-9.946	-8.976
{\rm stellar\ age}	1.847	5.445	7.206

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.691	-1.254	-0.626
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.600	-0.861	-0.005

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.126	0.386	0.873
\delta	-0.584	-0.110	0.236
\tau_1/\tau_2	0.694	1.082	1.463
Q_{PAH}	1.119	3.225	5.641
U_{min}	3.156	8.620	16.215
{\rm log}_{10}(\gamma_e)\,	-2.827	-1.525	-0.494

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.826	-0.260	0.155
{\rm log}_{10}(\tau_{AGN})\,	1.157	1.589	1.972

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.271	-2.080	-1.458
0.03-0.10 Gyr	-2.407	-1.256	-0.316
0.10-0.33 Gyr	-2.230	-1.170	-0.525
0.33-1.07 Gyr	-2.577	-1.279	-0.807
1.07-3.52 Gyr	-2.762	-1.376	-1.053
3.52-11.56 Gyr	-3.165	-1.512	-1.175
11.56-12.84 Gyr	-3.199	-1.567	-0.936

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.061	10.146	10.268
{\rm log}_{10}({\rm SFR})	-0.141	0.385	0.653
{\rm log}_{10}({\rm sSFR})	-10.381	-9.781	-9.461
{\rm stellar\ age}	5.710	7.041	9.630

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.069	-0.741	-0.498
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.763	-0.987	0.136

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.159	0.283	0.450
\delta	-0.149	0.174	0.325
\tau_1/\tau_2	0.534	0.946	1.355
Q_{PAH}	0.865	2.015	4.071
U_{min}	2.879	8.502	16.689
{\rm log}_{10}(\gamma_e)\,	-3.244	-2.239	-1.514

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.313	-2.193	-1.664
{\rm log}_{10}(\tau_{AGN})\,	1.004	1.375	1.795

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-3.730	-2.159	-0.807
0.03-0.10 Gyr	-0.056	0.544	0.816
0.10-0.33 Gyr	-0.310	0.368	0.723
0.33-1.07 Gyr	-1.678	-0.043	0.282
1.07-3.52 Gyr	-1.136	0.067	0.371
3.52-11.56 Gyr	-0.536	0.200	0.388
11.56-12.84 Gyr	-0.474	0.344	1.194