2025xvb

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Information

Transient

Name: AT2025xvb
Right ascension: 1h45m45.92s
Declination: -9d44m18.36s
Discovery Date: Sept. 15, 2025, 2:55 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name: 144312
Right ascension: 1h45m46.66s
Declination: -9d44m34.68s
Redshift: 0.049392
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	14.03
Transient MWEBV	processed	0.04
Host match	processed	4.46
Host information	processed	0.11
Host MWEBV	processed	0.04
Global aperture construction	processed	0.62
Global aperture photometry	processed	5.96
Validate global photometry	processed	16.82
Global host SED inference	processed	609.97
Local aperture photometry	processed	6.41
Validate local photometry	processed	0.02
Local host SED inference	processed	527.49

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) = 1h45m45.92s, -9d44m18.36s
semi major axis, semi minor axis (arcsec) = 2.07, 2.07
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	-1.65	1.92			AB
DES_g	2.0	0.12	23.150	0.066	AB
PanSTARRS_g	2.93	0.52	22.732	0.191	AB
SDSS_r	4.31	1.22	22.313	0.307	AB
PanSTARRS_r	3.69	0.64	22.481	0.188	AB
DES_r	3.9	0.16	22.423	0.045	AB
SDSS_i	6.37	1.91	21.889	0.326	AB
PanSTARRS_i	4.45	0.53	22.278	0.130	AB
PanSTARRS_z	3.34	1.25	22.589	0.405	AB
DES_z	6.06	0.41	21.944	0.074	AB
PanSTARRS_y	5.76	3.6	21.999	0.679	AB

Aperture details

RA, DEC (J2000) = 1h45m46.66s, -9d44m34.00s
semi major axis, semi minor axis (arcsec) = 13.0, 9.49
angle (degrees, anti-clockwise from east) = -44.82

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	3.34	0.79	22.591	0.258	AB
GALEX_NUV	8.79	0.79	21.540	0.098	AB
SDSS_u	172.1	10.9	18.311	0.069	AB
DES_g	1115.64	1.31	16.281	0.001	AB
PanSTARRS_g	1166.62	2.78	16.233	0.003	AB
SDSS_r	2319.39	13.68	15.487	0.006	AB
PanSTARRS_r	2276.35	3.67	15.507	0.002	AB
DES_r	2460.4	2.0	15.422	0.001	AB
SDSS_i	3392.82	17.75	15.074	0.006	AB
PanSTARRS_i	3294.54	2.9	15.106	0.001	AB
PanSTARRS_z	4263.44	6.76	14.826	0.002	AB
DES_z	4395.03	6.59	14.793	0.002	AB
PanSTARRS_y	5174.3	18.98	14.615	0.004	AB
2MASS_J	6126.8	278.54	13.537	0.049	Vega
2MASS_H	8491.09	456.21	12.710	0.058	Vega
2MASS_K	6166.07	526.45	12.587	0.093	Vega
WISE_W1	2821.04	32.7	12.575	0.013	Vega
WISE_W2	1631.68	34.02	12.529	0.023	Vega
WISE_W3	470.56	89.32	12.044	0.206	Vega
WISE_W4	-348.46	411.6			Vega

Imaging data

Click the image to load the interactive plot.

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})\,	7.439	7.721	7.919
{\rm log}_{10}({\rm SFR})	-2.365	-1.754	-1.170
{\rm log}_{10}({\rm sSFR})	-10.140	-9.483	-8.726
{\rm stellar\ age}	1.248	4.930	6.950

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.494	-0.853	-0.274
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.627	-0.968	-0.049

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.815	1.334	1.908
\delta	-0.041	0.199	0.330
\tau_1/\tau_2	0.718	1.078	1.431
Q_{PAH}	1.098	3.208	5.376
U_{min}	3.071	8.449	15.559
{\rm log}_{10}(\gamma_e)\,	-2.759	-1.663	-0.542

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.705	-0.156	0.287
{\rm log}_{10}(\tau_{AGN})\,	1.005	1.590	1.972

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.604	-1.856	-1.249
0.03-0.10 Gyr	-2.522	-1.814	-1.123
0.10-0.33 Gyr	-2.532	-1.854	-1.268
0.33-1.09 Gyr	-2.956	-2.045	-1.604
1.09-3.58 Gyr	-3.607	-2.271	-1.912
3.58-11.79 Gyr	-4.137	-2.399	-2.016
11.79-13.10 Gyr	-3.961	-2.498	-1.877

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.706	10.785	10.864
{\rm log}_{10}({\rm SFR})	-1.987	-1.359	-0.874
{\rm log}_{10}({\rm sSFR})	-12.794	-12.116	-11.611
{\rm stellar\ age}	7.935	10.621	12.425

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.684	-0.569	-0.469
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.291	-0.691	-0.118

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.150	0.236	0.341
\delta	-0.960	-0.854	-0.684
\tau_1/\tau_2	0.566	0.953	1.381
Q_{PAH}	0.279	0.811	2.427
U_{min}	3.216	8.646	16.435
{\rm log}_{10}(\gamma_e)\,	-2.163	-1.374	-0.659

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.472	-3.666	-2.755
{\rm log}_{10}(\tau_{AGN})\,	1.028	1.495	1.913

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.122	-1.311	-0.836
0.03-0.10 Gyr	-2.828	-1.482	-0.860
0.10-0.33 Gyr	-3.490	-1.598	-0.841
0.33-1.09 Gyr	-3.699	-1.542	-0.555
1.09-3.58 Gyr	-3.099	-1.130	0.157
3.58-11.79 Gyr	-1.588	0.648	0.976
11.79-13.10 Gyr	0.825	1.724	1.998