2025xga

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Information

Transient

Name: AT2025xga
Right ascension: 8h41m51.24s
Declination: 16d15m56.25s
Discovery Date: Sept. 6, 2025, 12:29 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.022

Host

Name: 1504716
Right ascension: 8h41m51.36s
Declination: 16d15m55.94s
Redshift: None
Photometric Redshift: 0.077

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	5.0
Cutout download	processed	18.56
Global aperture construction	processed	0.72
Local aperture photometry	processed	6.9
Global aperture photometry	processed	6.5
Validate local photometry	processed	0.03
Validate global photometry	processed	17.8
Host information	processed	0.12
Global host SED inference	processed	580.67
Local host SED inference	processed	472.55
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.05
Processing status	completed	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) = 8h41m51.24s, 16d15m56.25s
semi major axis, semi minor axis (arcsec) = 1.38, 1.38
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	53.91	0.39	19.571	0.008	AB
PanSTARRS_g	53.19	0.45	19.585	0.009	AB
SDSS_r	109.04	2.82	18.806	0.028	AB
PanSTARRS_r	105.85	0.44	18.838	0.005	AB
DES_r	127.62	0.96	18.635	0.008	AB
SDSS_i	163.3	3.52	18.368	0.023	AB
PanSTARRS_i	159.19	0.51	18.395	0.003	AB
PanSTARRS_z	209.89	1.1	18.095	0.006	AB
SDSS_z	203.8	5.54	18.127	0.030	AB
DES_z	225.98	3.81	18.015	0.018	AB
PanSTARRS_y	237.97	2.64	17.959	0.012	AB

Aperture details

RA, DEC (J2000) = 8h41m51.23s, 16d15m55.98s
semi major axis, semi minor axis (arcsec) = 12.31, 5.38
angle (degrees, anti-clockwise from east) = -146.8

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	18.79	4.33	20.715	0.250	AB
GALEX_NUV	42.3	4.28	19.834	0.110	AB
SDSS_u	140.32	9.3	18.532	0.072	AB
SDSS_g	284.81	5.11	17.764	0.019	AB
DES_g	250.16	1.02	17.904	0.004	AB
PanSTARRS_g	317.48	2.51	17.646	0.009	AB
SDSS_r	469.95	7.41	17.220	0.017	AB
PanSTARRS_r	502.9	2.42	17.146	0.005	AB
DES_r	470.66	2.22	17.218	0.005	AB
SDSS_i	666.72	9.8	16.840	0.016	AB
PanSTARRS_i	704.37	2.72	16.780	0.004	AB
PanSTARRS_z	806.66	6.25	16.633	0.008	AB
SDSS_z	766.52	25.68	16.689	0.036	AB
DES_z	772.95	7.68	16.680	0.011	AB
PanSTARRS_y	919.54	15.33	16.491	0.018	AB
2MASS_J	847.75	213.78	15.684	0.274	Vega
2MASS_H	1483.38	338.79	14.604	0.248	Vega
2MASS_K	964.73	308.02	14.601	0.347	Vega
WISE_W1	592.42	56.06	14.269	0.103	Vega
WISE_W2	316.81	35.86	14.309	0.123	Vega
WISE_W3	818.89	167.96	11.443	0.223	Vega
WISE_W4	2668.8	918.04	8.714	0.373	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.717	9.829	9.975
{\rm log}_{10}({\rm SFR})	-1.815	-1.058	-0.356
{\rm log}_{10}({\rm sSFR})	-11.671	-10.906	-10.177
{\rm stellar\ age}	6.133	7.554	10.103

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.467	-0.809	-0.429
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.738	-0.775	0.221

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.392	0.762	1.196
\delta	-0.663	-0.301	0.112
\tau_1/\tau_2	0.694	1.027	1.387
Q_{PAH}	0.710	2.700	5.827
U_{min}	2.884	8.030	15.086
{\rm log}_{10}(\gamma_e)\,	-3.189	-2.022	-0.629

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.949	-1.051	-0.324
{\rm log}_{10}(\tau_{AGN})\,	1.071	1.430	1.954

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.011	-1.210	-0.648
0.03-0.10 Gyr	-2.085	-1.097	-0.269
0.10-0.33 Gyr	-2.120	-1.036	-0.261
0.33-1.07 Gyr	-2.038	-0.866	-0.175
1.07-3.51 Gyr	-1.731	-0.440	-0.013
3.51-11.47 Gyr	-0.587	-0.065	0.129
11.47-12.75 Gyr	-0.517	0.128	0.868

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.249	10.321	10.424
{\rm log}_{10}({\rm SFR})	0.432	0.715	1.125
{\rm log}_{10}({\rm sSFR})	-9.918	-9.598	-9.239
{\rm stellar\ age}	7.379	9.124	11.746

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.779	-0.476	-0.319
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.011	0.249	0.402

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.191	0.287	0.476
\delta	-0.873	-0.620	-0.320
\tau_1/\tau_2	0.398	0.854	1.349
Q_{PAH}	0.486	1.200	2.380
U_{min}	3.175	8.972	16.926
{\rm log}_{10}(\gamma_e)\,	-3.251	-1.912	-1.179

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.510	-3.733	-2.803
{\rm log}_{10}(\tau_{AGN})\,	1.094	1.610	1.954

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.641	-0.086	0.226
0.03-0.10 Gyr	0.564	0.859	1.270
0.10-0.33 Gyr	-3.334	-1.948	-0.445
0.33-1.07 Gyr	-5.933	-2.773	-0.792
1.07-3.51 Gyr	-3.676	-1.471	-0.352
3.51-11.47 Gyr	-0.948	0.346	0.554
11.47-12.75 Gyr	-0.047	1.079	1.538