2025vkd

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Information

Transient

Name: AT2025vkd
Right ascension: 17h08m20.79s
Declination: 31d44m45.13s
Discovery Date: Aug. 25, 2025, 6:49 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.031

Host

Name: SDSSJ170820.58+31444
Right ascension: 17h08m20.52s
Declination: 31d44m48.99s
Redshift: 0.108119
Photometric Redshift:

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	32.01
Transient MWEBV	processed	0.04
Host match	processed	3.74
Host information	processed	0.15
Host MWEBV	processed	0.04
Global aperture construction	processed	0.63
Global aperture photometry	processed	4.17
Validate global photometry	processed	13.37
Global host SED inference	processed	414.3
Local aperture photometry	processed	4.77
Validate local photometry	no valid phot	0.02
Local host SED inference	not processed	None

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) = 17h08m20.79s, 31d44m45.13s
semi major axis, semi minor axis (arcsec) = 1.01, 1.01
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) = 17h08m20.56s, 31d44m48.97s
semi major axis, semi minor axis (arcsec) = 10.02, 7.83
angle (degrees, anti-clockwise from east) = -25.53

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	3.9	0.87	22.423	0.242	AB
GALEX_NUV	9.07	0.49	21.505	0.058	AB
SDSS_u	150.88	5.89	18.453	0.042	AB
SDSS_g	559.2	6.52	17.031	0.013	AB
PanSTARRS_g	635.09	1.71	16.893	0.003	AB
SDSS_r	1369.9	10.13	16.058	0.008	AB
PanSTARRS_r	1453.33	2.56	15.994	0.002	AB
SDSS_i	1981.05	12.97	15.658	0.007	AB
PanSTARRS_i	2039.59	2.75	15.626	0.001	AB
PanSTARRS_z	2647.62	7.5	15.343	0.003	AB
SDSS_z	2616.05	24.56	15.356	0.010	AB
PanSTARRS_y	3060.32	13.93	15.186	0.005	AB
2MASS_J	3825.57	173.83	14.048	0.049	Vega
2MASS_H	5049.7	275.73	13.274	0.059	Vega
2MASS_K	5242.54	298.52	12.763	0.062	Vega
WISE_W1	2074.93	26.74	12.908	0.014	Vega
WISE_W2	1310.19	26.97	12.768	0.022	Vega
WISE_W3	669.85	87.93	11.661	0.143	Vega
WISE_W4	641.9	453.7	10.261	0.767	Vega

Imaging data

Click the image to load the interactive plot.

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})\,	11.227	11.306	11.367
{\rm log}_{10}({\rm SFR})	-1.603	-0.920	-0.477
{\rm log}_{10}({\rm sSFR})	-12.926	-12.207	-11.751
{\rm stellar\ age}	7.610	10.144	11.712

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.702	-0.538	-0.411
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.513	-0.712	0.076

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.104	0.166	0.263
\delta	-0.577	-0.216	0.054
\tau_1/\tau_2	0.503	0.921	1.326
Q_{PAH}	0.526	1.952	4.178
U_{min}	3.049	8.592	16.765
{\rm log}_{10}(\gamma_e)\,	-2.647	-1.335	-0.494

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.096	-3.070	-2.133
{\rm log}_{10}(\tau_{AGN})\,	1.061	1.534	1.917

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.840	-1.131	-0.660
0.03-0.10 Gyr	-2.269	-0.950	-0.375
0.10-0.32 Gyr	-3.130	-1.197	-0.471
0.32-1.05 Gyr	-4.017	-1.412	-0.500
1.05-3.42 Gyr	-2.860	-0.904	0.148
3.42-11.12 Gyr	-0.892	1.187	1.535
11.12-12.35 Gyr	1.330	2.262	2.522