2025xvt

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Information

Transient

Name: AT2025xvt
Right ascension: 21h59m46.37s
Declination: 66d41m12.67s
Discovery Date: Sept. 17, 2025, 10:04 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.600

Host

Name: 21594592+6641185
Right ascension: 21h59m45.92s
Declination: 66d41m18.57s
Redshift: 0.045551
Photometric Redshift:

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	4.92
Transient MWEBV	processed	0.06
Host match	processed	3.95
Host information	processed	0.11
Host MWEBV	processed	0.06
Global aperture construction	processed	0.67
Global aperture photometry	processed	3.95
Validate global photometry	processed	12.03
Global host SED inference	processed	602.47
Local aperture photometry	processed	4.17
Validate local photometry	processed	0.02
Local host SED inference	processed	534.2

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) = 21h59m46.37s, 66d41m12.67s
semi major axis, semi minor axis (arcsec) = 2.24, 2.24
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_g	17.28	0.65	20.806	0.041	AB
PanSTARRS_r	44.63	0.83	19.776	0.020	AB
PanSTARRS_i	72.75	1.13	19.245	0.017	AB
PanSTARRS_z	105.65	1.93	18.840	0.020	AB
PanSTARRS_y	128.6	5.01	18.627	0.042	AB

Aperture details

RA, DEC (J2000) = 21h59m45.86s, 66d41m18.72s
semi major axis, semi minor axis (arcsec) = 10.26, 8.89
angle (degrees, anti-clockwise from east) = -95.02

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	10.7	4.98	21.326	0.505	AB
PanSTARRS_g	478.27	2.78	17.201	0.006	AB
PanSTARRS_r	1375.77	3.63	16.054	0.003	AB
PanSTARRS_i	2647.54	4.9	15.343	0.002	AB
2MASS_J	8593.5	265.57	13.170	0.034	Vega
2MASS_H	12841.98	416.11	12.261	0.035	Vega
2MASS_K	12506.92	401.06	11.819	0.035	Vega
WISE_W1	5379.91	71.08	11.874	0.014	Vega
WISE_W2	3189.07	90.94	11.802	0.031	Vega
WISE_W3	6092.2	101.48	9.264	0.018	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})\,	8.878	9.062	9.235
{\rm log}_{10}({\rm SFR})	-1.457	-0.789	-0.125
{\rm log}_{10}({\rm sSFR})	-10.560	-9.899	-9.021
{\rm stellar\ age}	2.126	5.337	7.351

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.481	-0.819	-0.316
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.836	-1.490	-0.773

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.176	0.413	0.779
\delta	-0.733	-0.201	0.177
\tau_1/\tau_2	0.721	1.098	1.483
Q_{PAH}	0.972	3.114	5.374
U_{min}	2.873	8.213	15.324
{\rm log}_{10}(\gamma_e)\,	-3.361	-1.992	-0.952

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.978	-1.845	-0.598
{\rm log}_{10}(\tau_{AGN})\,	1.023	1.505	1.992

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.618	-1.030	-0.573
0.03-0.10 Gyr	-1.576	-0.745	-0.002
0.10-0.33 Gyr	-1.242	-0.534	0.020
0.33-1.09 Gyr	-1.541	-0.709	-0.289
1.09-3.59 Gyr	-1.819	-0.877	-0.567
3.59-11.83 Gyr	-2.248	-1.036	-0.678
11.83-13.15 Gyr	-2.275	-1.042	-0.416

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.814	10.928	11.035
{\rm log}_{10}({\rm SFR})	-0.557	0.111	0.736
{\rm log}_{10}({\rm sSFR})	-11.526	-10.879	-10.218
{\rm stellar\ age}	6.905	8.069	11.401

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.640	-0.440	-0.333
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.598	-0.745	-0.091

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.075	0.164	0.350
\delta	-0.860	-0.412	0.078
\tau_1/\tau_2	0.501	0.914	1.347
Q_{PAH}	0.362	1.392	3.576
U_{min}	2.747	7.862	14.871
{\rm log}_{10}(\gamma_e)\,	-2.874	-1.533	-0.630

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.429	-3.457	-2.347
{\rm log}_{10}(\tau_{AGN})\,	1.215	1.748	2.033

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.940	-0.090	0.417
0.03-0.10 Gyr	-0.808	0.107	0.839
0.10-0.33 Gyr	-1.015	0.072	0.773
0.33-1.09 Gyr	-1.080	0.119	0.653
1.09-3.59 Gyr	-0.871	0.455	0.951
3.59-11.83 Gyr	0.416	0.979	1.171
11.83-13.15 Gyr	0.683	1.267	2.066