2025xaf

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Information

Transient

Name: AT2025xaf
Right ascension: 7h56m51.44s
Declination: 8d00m44.69s
Discovery Date: Aug. 31, 2025, 12:22 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.015

Host

Name:
Right ascension: 7h56m51.43s
Declination: 8d00m28.21s
Redshift: 0.056703
Photometric Redshift: 0.042

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	22.98
Transient MWEBV	processed	0.04
Host match	processed	6.73
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.66
Global aperture photometry	processed	6.4
Validate global photometry	processed	15.88
Global host SED inference	processed	851.48
Local aperture photometry	processed	6.58
Validate local photometry	processed	0.02
Local host SED inference	processed	536.02

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) = 7h56m51.44s, 8d00m44.69s
semi major axis, semi minor axis (arcsec) = 1.82, 1.82
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	27.17	1.94	20.315	0.078	AB
SDSS_g	49.53	1.89	19.663	0.042	AB
DES_g	50.37	0.37	19.645	0.008	AB
PanSTARRS_g	49.56	0.46	19.662	0.010	AB
PanSTARRS_r	49.91	0.48	19.655	0.010	AB
DES_r	54.81	0.46	19.553	0.009	AB
SDSS_i	55.34	2.41	19.542	0.047	AB
PanSTARRS_i	58.3	0.64	19.486	0.012	AB
PanSTARRS_z	54.13	1.56	19.566	0.031	AB
SDSS_z	48.64	6.1	19.683	0.136	AB
DES_z	52.98	1.2	19.590	0.025	AB
PanSTARRS_y	56.55	3.2	19.519	0.061	AB

Aperture details

RA, DEC (J2000) = 7h56m51.40s, 8d00m30.44s
semi major axis, semi minor axis (arcsec) = 36.45, 5.6
angle (degrees, anti-clockwise from east) = -177.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_u	376.85	12.51	17.460	0.036	AB
SDSS_g	905.91	8.92	16.507	0.011	AB
DES_g	936.78	1.76	16.471	0.002	AB
PanSTARRS_g	945.34	3.43	16.461	0.004	AB
PanSTARRS_r	1207.73	3.65	16.195	0.003	AB
SDSS_i	1463.88	15.36	15.986	0.011	AB
PanSTARRS_i	1456.76	4.92	15.992	0.004	AB
PanSTARRS_z	1502.7	11.97	15.958	0.009	AB
SDSS_z	1441.36	47.17	16.003	0.036	AB
DES_z	1613.11	7.12	15.881	0.005	AB
PanSTARRS_y	1571.74	25.15	15.909	0.017	AB
2MASS_J	2410.47	411.74	14.550	0.185	Vega
2MASS_H	2723.89	625.4	13.944	0.249	Vega
2MASS_K	864.8	685.74	14.720	0.861	Vega
WISE_W4	3733.18	1267.73	8.350	0.369	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})\,	8.096	8.368	8.550
{\rm log}_{10}({\rm SFR})	-1.132	-0.240	0.272
{\rm log}_{10}({\rm sSFR})	-9.599	-8.587	-7.920
{\rm stellar\ age}	0.086	1.243	5.313

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.771	-1.447	-0.980
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.611	-1.063	-0.256

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.096	0.406	0.798
\delta	-0.499	-0.059	0.219
\tau_1/\tau_2	0.651	1.083	1.541
Q_{PAH}	0.842	2.880	5.484
U_{min}	3.660	9.726	18.097
{\rm log}_{10}(\gamma_e)\,	-3.193	-1.978	-0.559

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.658	-1.449	-0.386
{\rm log}_{10}(\tau_{AGN})\,	0.962	1.477	1.959

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.644	-1.257	-0.940
0.03-0.10 Gyr	-1.074	-0.092	0.429
0.10-0.33 Gyr	-3.032	-0.890	-0.208
0.33-1.08 Gyr	-4.884	-2.003	-0.939
1.08-3.56 Gyr	-6.382	-2.844	-1.359
3.56-11.70 Gyr	-7.333	-3.216	-1.618
11.70-13.00 Gyr	-7.400	-2.955	-1.401

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.764	10.039	10.200
{\rm log}_{10}({\rm SFR})	-1.233	0.341	1.052
{\rm log}_{10}({\rm sSFR})	-11.127	-9.793	-8.915
{\rm stellar\ age}	0.496	4.503	7.416

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.758	-1.411	-0.940
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.751	-0.882	0.236

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.164	0.423	0.832
\delta	-0.760	-0.263	0.218
\tau_1/\tau_2	0.533	0.996	1.477
Q_{PAH}	0.634	1.898	3.961
U_{min}	3.172	9.042	17.629
{\rm log}_{10}(\gamma_e)\,	-3.364	-1.903	-0.898

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.620	-3.549	-1.209
{\rm log}_{10}(\tau_{AGN})\,	0.856	1.427	1.941

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.596	-0.731	-0.146
0.03-0.10 Gyr	-1.486	0.482	1.213
0.10-0.33 Gyr	-0.133	0.763	1.413
0.33-1.08 Gyr	-1.985	-0.031	0.636
1.08-3.56 Gyr	-3.016	-0.212	0.373
3.56-11.70 Gyr	-3.688	-0.437	0.291
11.70-13.00 Gyr	-4.104	-0.408	0.611