2025xsr

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Information

Transient

Name: AT2025xsr
Right ascension: 8h27m23.94s
Declination: 2d37m50.26s
Discovery Date: Sept. 15, 2025, 12:30 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.043

Host

Name:
Right ascension: 8h27m23.94s
Declination: 2d37m50.26s
Redshift: None
Photometric Redshift: 0.137

Processing Status

Task Name	Status	Time taken (s)	Warning Flag
Host match	processed	5.59
Cutout download	processed	12.13
Global aperture construction	processed	0.64
Local aperture photometry	processed	5.41
Global aperture photometry	processed	4.72
Validate local photometry	no valid phot	0.02
Validate global photometry	processed	12.89
Host information	processed	0.11
Global host SED inference	processed	978.92
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) = 8h27m23.94s, 2d37m50.26s
semi major axis, semi minor axis (arcsec) = 0.82, 0.82
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) = 8h27m23.91s, 2d37m50.61s
semi major axis, semi minor axis (arcsec) = 6.06, 4.46
angle (degrees, anti-clockwise from east) = -68.66

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_g	173.32	3.7	18.303	0.023	AB
PanSTARRS_g	230.61	1.37	17.993	0.006	AB
SDSS_r	395.95	5.61	17.406	0.015	AB
PanSTARRS_r	456.11	1.41	17.252	0.003	AB
DES_r	492.07	2.29	17.170	0.005	AB
PanSTARRS_i	617.03	1.78	16.924	0.003	AB
PanSTARRS_z	717.99	4.2	16.760	0.006	AB
SDSS_z	669.52	14.99	16.836	0.024	AB
PanSTARRS_y	838.95	10.64	16.591	0.014	AB
2MASS_J	769.72	162.8	15.789	0.230	Vega
2MASS_H	1617.67	236.5	14.510	0.159	Vega
2MASS_K	1516.42	286.44	14.110	0.205	Vega
WISE_W1	653.22	16.48	14.163	0.027	Vega
WISE_W2	760.7	26.0	13.358	0.037	Vega
WISE_W3	798.13	118.68	11.471	0.161	Vega
WISE_W4	1194.41	658.15	9.587	0.598	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})\,	10.743	10.804	10.858
{\rm log}_{10}({\rm SFR})	0.003	0.364	0.673
{\rm log}_{10}({\rm sSFR})	-10.787	-10.464	-10.158
{\rm stellar\ age}	6.291	7.162	8.539

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.392	-0.247	-0.121
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.237	-0.846	-0.320

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.050	0.129	0.218
\delta	-0.949	-0.827	-0.573
\tau_1/\tau_2	0.685	1.118	1.496
Q_{PAH}	0.146	0.572	1.720
U_{min}	2.672	7.167	13.946
{\rm log}_{10}(\gamma_e)\,	-3.265	-2.327	-1.344

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-1.220	-1.058	-0.887
{\rm log}_{10}(\tau_{AGN})\,	1.060	1.240	1.414

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	0.300	0.517	0.732
0.03-0.10 Gyr	-0.402	0.256	0.676
0.10-0.32 Gyr	-0.416	0.187	0.557
0.32-1.04 Gyr	-0.342	0.219	0.574
1.04-3.35 Gyr	-0.074	0.553	0.916
3.35-10.81 Gyr	0.754	0.989	1.100
10.81-12.01 Gyr	0.570	1.094	1.633