2025xsb

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Information

Transient

Name: AT2025xsb
Right ascension: 0h05m27.33s
Declination: 1d40m59.96s
Discovery Date: Sept. 13, 2025, 1:32 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name:
Right ascension: 0h05m27.12s
Declination: 1d41m02.04s
Redshift: None
Photometric Redshift: 0.130

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	6.81
Cutout download	processed	17.87
Global aperture construction	processed	0.57
Local aperture photometry	processed	6.62
Global aperture photometry	processed	6.2
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	17.48
Host information	processed	0.11
Global host SED inference	processed	388.07
Local host SED inference	not processed	None
Transient information	processed	0.0
Transient MWEBV	processed	0.04
Host MWEBV	processed	0.04
Processing status	blocked	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) = 0h05m27.33s, 1d40m59.96s
semi major axis, semi minor axis (arcsec) = 0.87, 0.87
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 0h05m27.09s, 1d41m02.28s
semi major axis, semi minor axis (arcsec) = 2.51, 2.17
angle (degrees, anti-clockwise from east) = -38.52

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	5.77	1.17	21.996	0.220	AB
GALEX_NUV	4.71	0.9	22.217	0.206	AB
SDSS_u	7.32	2.48	21.739	0.368	AB
SDSS_g	23.23	1.42	20.485	0.066	AB
DES_g	23.23	0.2	20.485	0.009	AB
PanSTARRS_g	25.34	0.72	20.391	0.031	AB
SDSS_r	42.83	1.96	19.821	0.050	AB
PanSTARRS_r	40.46	0.41	19.882	0.011	AB
DES_r	42.89	0.28	19.819	0.007	AB
SDSS_i	59.4	2.6	19.466	0.048	AB
PanSTARRS_i	54.71	0.52	19.555	0.010	AB
PanSTARRS_z	63.04	1.66	19.401	0.029	AB
SDSS_z	75.12	6.01	19.211	0.087	AB
DES_z	64.53	0.96	19.376	0.016	AB
PanSTARRS_y	81.4	3.9	19.123	0.052	AB
2MASS_J	44.39	87.08	18.887	2.130	Vega
2MASS_H	150.74	143.0	17.087	1.030	Vega
2MASS_K	55.03	153.47	17.711	3.028	Vega
WISE_W1	115.68	10.29	16.043	0.097	Vega
WISE_W2	66.86	13.2	15.998	0.214	Vega
WISE_W3	-52.36	65.95			Vega
WISE_W4	-250.06	389.77			Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.559	9.648	9.748
{\rm log}_{10}({\rm SFR})	-0.208	0.067	0.333
{\rm log}_{10}({\rm sSFR})	-9.881	-9.597	-9.267
{\rm stellar\ age}	4.669	5.861	6.975

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.064	-0.427	-0.080
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.366	-0.879	-0.260

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.484	0.746	1.005
\delta	0.173	0.298	0.370
\tau_1/\tau_2	0.743	1.071	1.388
Q_{PAH}	1.823	3.759	5.502
U_{min}	3.108	7.793	14.689
{\rm log}_{10}(\gamma_e)\,	-2.803	-1.690	-0.696

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.780	-2.173	-0.998
{\rm log}_{10}(\tau_{AGN})\,	0.964	1.421	1.874

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.299	-0.079	0.132
0.03-0.10 Gyr	-0.219	0.115	0.423
0.10-0.32 Gyr	-0.355	-0.028	0.242
0.32-1.04 Gyr	-0.536	-0.185	0.069
1.04-3.37 Gyr	-0.496	-0.221	-0.037
3.37-10.89 Gyr	-0.510	-0.271	-0.110
10.89-12.09 Gyr	-0.667	-0.213	0.195