2025ahtz

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Information

Transient

Name: AT2025ahtz
Right ascension: 6h37m38.14s
Declination: 58d34m13.72s
Discovery Date: Dec. 20, 2025, 6:23 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.063

Host

Name:
Right ascension: 6h37m38.19s
Declination: 58d34m13.79s
Redshift: None
Photometric Redshift: 0.089

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	5.94
Transient MWEBV	processed	0.1
Host match	processed	5.7
Host information	processed	0.13
Host MWEBV	processed	0.04
Global aperture construction	processed	0.66
Global aperture photometry	processed	5.4
Validate global photometry	processed	2.27
Global host SED inference	processed	494.7
Local aperture photometry	processed	5.44
Validate local photometry	processed	0.02
Local host SED inference	processed	494.29

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) = 6h37m38.14s, 58d34m13.72s
semi major axis, semi minor axis (arcsec) = 1.21, 1.21
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	65.23	0.51	19.364	0.008	AB
PanSTARRS_r	171.42	0.47	18.315	0.003	AB
PanSTARRS_i	243.4	0.47	17.934	0.002	AB
PanSTARRS_z	332.79	0.98	17.595	0.003	AB
DES_z	403.19	4.06	17.386	0.011	AB
PanSTARRS_y	404.12	2.25	17.384	0.006	AB

Aperture details

RA, DEC (J2000) = 6h37m38.16s, 58d34m14.00s
semi major axis, semi minor axis (arcsec) = 6.2, 3.09
angle (degrees, anti-clockwise from east) = -130.9

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	2.45	1.09	22.928	0.485	AB
GALEX_NUV	1.89	1.36	23.212	0.786	AB
DES_g	178.75	0.85	18.269	0.005	AB
PanSTARRS_g	194.06	0.92	18.180	0.005	AB
PanSTARRS_r	420.37	1.52	17.341	0.004	AB
PanSTARRS_i	608.72	1.52	16.939	0.003	AB
PanSTARRS_z	779.74	3.23	16.670	0.004	AB
DES_z	834.59	5.97	16.596	0.008	AB
PanSTARRS_y	924.68	7.85	16.485	0.009	AB
2MASS_J	1096.73	116.04	15.405	0.115	Vega
2MASS_H	1403.13	191.21	14.665	0.148	Vega
2MASS_K	1719.74	184.63	13.974	0.117	Vega
WISE_W1	515.96	14.01	14.419	0.029	Vega
WISE_W2	353.1	14.78	14.191	0.045	Vega
WISE_W3	135.78	59.68	13.394	0.477	Vega
WISE_W4	518.74	353.69	10.493	0.740	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})\,	10.222	10.315	10.397
{\rm log}_{10}({\rm SFR})	-2.301	-1.199	-0.388
{\rm log}_{10}({\rm sSFR})	-12.593	-11.557	-10.689
{\rm stellar\ age}	7.299	8.842	11.878

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.628	-0.277	-0.061
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.472	-0.685	0.082

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.220	0.459	0.868
\delta	-0.735	-0.395	0.055
\tau_1/\tau_2	0.596	0.939	1.320
Q_{PAH}	0.836	2.673	5.267
U_{min}	2.928	8.237	15.419
{\rm log}_{10}(\gamma_e)\,	-3.247	-2.064	-0.558

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.316	-0.776	-0.389
{\rm log}_{10}(\tau_{AGN})\,	1.010	1.555	1.935

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.584	-1.324	-0.465
0.03-0.10 Gyr	-2.767	-1.281	-0.360
0.10-0.33 Gyr	-2.983	-1.328	-0.428
0.33-1.06 Gyr	-3.338	-1.344	-0.342
1.06-3.47 Gyr	-3.134	-1.048	0.106
3.47-11.34 Gyr	-1.274	0.315	0.550
11.34-12.60 Gyr	0.136	0.998	1.526

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.498	10.586	10.685
{\rm log}_{10}({\rm SFR})	-4.885	-1.486	-0.261
{\rm log}_{10}({\rm sSFR})	-15.328	-12.148	-10.790
{\rm stellar\ age}	7.378	9.247	11.946

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.446	-1.061	-0.810
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.524	-0.532	0.198

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.286	0.421	0.579
\delta	-0.902	-0.699	-0.448
\tau_1/\tau_2	0.496	0.985	1.451
Q_{PAH}	0.769	2.277	4.567
U_{min}	3.313	9.861	18.593
{\rm log}_{10}(\gamma_e)\,	-3.020	-1.725	-0.586

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.478	-2.213	-1.519
{\rm log}_{10}(\tau_{AGN})\,	1.206	1.645	1.962

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-5.937	-2.164	-0.614
0.03-0.10 Gyr	-5.656	-1.701	-0.180
0.10-0.33 Gyr	-5.766	-2.186	-0.262
0.33-1.06 Gyr	-5.796	-2.444	-0.339
1.06-3.47 Gyr	-3.956	-1.534	0.161
3.47-11.34 Gyr	-1.736	0.523	0.845
11.34-12.60 Gyr	-0.183	1.349	1.838