2025ubd

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Information

Transient

Name: AT2025ubd
Right ascension: 17h58m56.35s
Declination: 41d55m08.08s
Discovery Date: Aug. 16, 2025, 7:36 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.032

Host

Name:
Right ascension: 17h58m56.12s
Declination: 41d55m00.87s
Redshift: 0.072030
Photometric Redshift: 0.047

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	32.09
Transient MWEBV	processed	0.04
Host match	processed	5.63
Host information	processed	0.16
Host MWEBV	processed	0.04
Global aperture construction	processed	0.59
Global aperture photometry	processed	5.45
Validate global photometry	processed	14.76
Global host SED inference	processed	568.71
Local aperture photometry	processed	5.5
Validate local photometry	processed	0.02
Local host SED inference	processed	424.71

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) = 17h58m56.35s, 41d55m08.08s
semi major axis, semi minor axis (arcsec) = 1.46, 1.46
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
SDSS_g	6.58	0.78	21.855	0.129	AB
PanSTARRS_g	8.36	0.38	21.594	0.049	AB
SDSS_r	13.83	1.18	21.048	0.093	AB
PanSTARRS_r	15.31	0.34	20.937	0.024	AB
SDSS_i	23.91	1.67	20.454	0.076	AB
PanSTARRS_i	21.11	0.3	20.589	0.015	AB
PanSTARRS_z	24.24	1.0	20.439	0.045	AB
SDSS_z	32.88	4.24	20.108	0.140	AB
PanSTARRS_y	31.16	2.36	20.166	0.082	AB

Aperture details

RA, DEC (J2000) = 17h58m56.11s, 41d55m01.17s
semi major axis, semi minor axis (arcsec) = 15.44, 8.26
angle (degrees, anti-clockwise from east) = -142.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	31.58	4.62	20.151	0.159	AB
GALEX_NUV	33.65	3.45	20.083	0.111	AB
SDSS_g	585.35	7.08	16.981	0.013	AB
PanSTARRS_g	660.01	2.97	16.851	0.005	AB
PanSTARRS_r	1266.76	2.67	16.143	0.002	AB
SDSS_i	1788.09	13.83	15.769	0.008	AB
PanSTARRS_i	1814.05	2.29	15.753	0.001	AB
SDSS_z	2505.74	33.4	15.403	0.014	AB
2MASS_H	4161.73	443.75	13.484	0.116	Vega
2MASS_K	3670.55	425.41	13.150	0.126	Vega
WISE_W1	1569.95	36.03	13.211	0.025	Vega
WISE_W3	919.73	91.3	11.317	0.108	Vega
WISE_W4	705.96	354.46	10.158	0.545	Vega

Imaging data

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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})\,	8.634	8.833	8.991
{\rm log}_{10}({\rm SFR})	-2.079	-1.323	-0.646
{\rm log}_{10}({\rm sSFR})	-10.930	-10.165	-9.365
{\rm stellar\ age}	2.331	6.107	7.662

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.615	-0.999	-0.308
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.506	-0.703	0.132

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.586	1.152	1.690
\delta	-0.196	0.102	0.302
\tau_1/\tau_2	0.640	1.003	1.361
Q_{PAH}	1.128	3.092	5.421
U_{min}	2.919	8.216	15.595
{\rm log}_{10}(\gamma_e)\,	-2.916	-1.722	-0.579

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.240	-0.756	-0.004
{\rm log}_{10}(\tau_{AGN})\,	0.975	1.484	1.927

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.413	-1.459	-0.806
0.03-0.10 Gyr	-2.332	-1.393	-0.608
0.10-0.33 Gyr	-2.088	-1.230	-0.562
0.33-1.07 Gyr	-2.066	-1.140	-0.611
1.07-3.52 Gyr	-2.304	-1.150	-0.842
3.52-11.52 Gyr	-2.386	-1.153	-0.868
11.52-12.80 Gyr	-2.441	-1.208	-0.615

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.802	10.886	10.925
{\rm log}_{10}({\rm SFR})	-0.769	-0.372	0.012
{\rm log}_{10}({\rm sSFR})	-11.685	-11.249	-10.875
{\rm stellar\ age}	8.691	11.760	12.133

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.665	-0.524	-0.407
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.542	-0.390	0.291

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.032	0.082	0.171
\delta	-0.682	-0.285	0.070
\tau_1/\tau_2	0.566	1.005	1.495
Q_{PAH}	0.329	1.192	3.185
U_{min}	2.449	7.216	14.725
{\rm log}_{10}(\gamma_e)\,	-3.340	-2.380	-1.133

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-2.784	-1.614	-1.239
{\rm log}_{10}(\tau_{AGN})\,	1.105	1.378	1.715

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.217	-0.508	-0.221
0.03-0.10 Gyr	-1.245	-0.372	0.141
0.10-0.33 Gyr	-3.231	-0.923	-0.216
0.33-1.07 Gyr	-4.469	-1.458	-0.522
1.07-3.52 Gyr	-3.482	-1.280	-0.379
3.52-11.52 Gyr	-1.506	0.063	1.002
11.52-12.80 Gyr	1.353	2.001	2.064