2025kyi

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Information

Transient

Name: AT2025kyi
Right ascension: 15h33m17.70s
Declination: 82d13m45.88s
Discovery Date: May 9, 2025, 10:47 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.054

Host

Name: 2025kyi
Right ascension: 15h33m17.38s
Declination: 82d13m45.48s
Redshift: 0.022185
Photometric Redshift: 0.051

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	4.23
Transient MWEBV	processed	0.05
Host match	processed	0.85
Host information	processed	0.09
Host MWEBV	processed	0.07
Global aperture construction	processed	0.71
Global aperture photometry	processed	4.47
Validate global photometry	processed	11.39
Global host SED inference	processed	444.86
Local aperture photometry	processed	4.15
Validate local photometry	processed	0.02
Local host SED inference	processed	500.4

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) = 15h33m17.70s, 82d13m45.88s
semi major axis, semi minor axis (arcsec) = 4.46, 4.46
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	12.86	2.54	21.127	0.214	AB
PanSTARRS_g	964.82	1.53	16.439	0.002	AB
PanSTARRS_r	2133.64	2.18	15.577	0.001	AB
PanSTARRS_i	3219.96	2.89	15.130	0.001	AB
PanSTARRS_z	4049.92	7.82	14.881	0.002	AB
PanSTARRS_y	4975.34	12.28	14.658	0.003	AB
2MASS_J	6374.7	102.5	13.494	0.017	Vega
2MASS_H	7911.04	140.76	12.787	0.019	Vega
2MASS_K	6834.46	162.05	12.475	0.026	Vega

Aperture details

RA, DEC (J2000) = 15h33m17.69s, 82d13m46.08s
semi major axis, semi minor axis (arcsec) = 41.05, 23.24
angle (degrees, anti-clockwise from east) = -102.78

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	281.37	12.0	17.777	0.046	AB
GALEX_NUV	390.39	3.47	17.421	0.010	AB
PanSTARRS_r	16391.39	13.81	13.363	0.001	AB
PanSTARRS_i	22504.17	18.81	13.019	0.001	AB
2MASS_H	43461.47	961.81	10.937	0.024	Vega
WISE_W1	18926.21	70.02	10.508	0.004	Vega
WISE_W3	28489.81	224.79	7.589	0.009	Vega
WISE_W4	32024.46	1230.62	6.016	0.042	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})\,	10.120	10.204	10.325
{\rm log}_{10}({\rm SFR})	-1.194	-0.624	-0.205
{\rm log}_{10}({\rm sSFR})	-11.440	-10.850	-10.387
{\rm stellar\ age}	7.858	9.312	12.543

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.494	-0.985	-0.578
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.152	0.018	0.316

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.669	1.016	1.281
\delta	-0.253	-0.072	0.148
\tau_1/\tau_2	0.607	0.999	1.372
Q_{PAH}	0.614	2.296	4.947
U_{min}	2.694	7.786	14.850
{\rm log}_{10}(\gamma_e)\,	-3.130	-1.991	-0.944

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.945	-2.019	-0.770
{\rm log}_{10}(\tau_{AGN})\,	1.145	1.618	1.985

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.268	-0.607	-0.201
0.03-0.10 Gyr	-1.594	-0.750	-0.182
0.10-0.33 Gyr	-2.236	-0.883	-0.283
0.33-1.10 Gyr	-2.778	-1.035	-0.387
1.10-3.65 Gyr	-2.679	-0.763	-0.033
3.65-12.11 Gyr	-0.956	0.228	0.417
12.11-13.46 Gyr	0.174	0.849	1.406

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.720	10.799	10.907
{\rm log}_{10}({\rm SFR})	-0.674	-0.352	-0.051
{\rm log}_{10}({\rm sSFR})	-11.514	-11.144	-10.855
{\rm stellar\ age}	7.317	8.302	11.511

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.837	-0.565	-0.348
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.222	-0.613	-0.016

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.078	0.169	0.315
\delta	-0.671	-0.250	0.116
\tau_1/\tau_2	0.401	0.833	1.279
Q_{PAH}	0.912	2.185	4.416
U_{min}	2.487	7.180	14.779
{\rm log}_{10}(\gamma_e)\,	-3.334	-2.070	-1.109

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.235	-1.593	-1.279
{\rm log}_{10}(\tau_{AGN})\,	1.148	1.463	1.821

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.592	-0.210	0.103
0.03-0.10 Gyr	-1.577	-0.522	-0.048
0.10-0.33 Gyr	-2.192	-0.528	0.034
0.33-1.10 Gyr	-1.873	-0.273	0.320
1.10-3.65 Gyr	-1.277	0.250	0.804
3.65-12.11 Gyr	0.342	0.910	1.063
12.11-13.46 Gyr	0.473	1.117	1.913