2025vkk

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Information

Transient

Name: SN2025vkk
Right ascension: 4h56m45.62s
Declination: -10d35m38.59s
Discovery Date: Aug. 17, 2025, 7:01 p.m.
Classification: SN IIb
Redshift: 0.013709
MW E(B-V): 0.071

Host

Name: PGC016379
Right ascension: 4h56m45.88s
Declination: -10d35m35.34s
Redshift: None
Photometric Redshift: 0.013

Processing Status: completed

Task Name	Status	Time taken (s)
Cutout download	processed	3.93
Transient MWEBV	processed	0.09
Host match	processed	3.83
Host information	processed	0.13
Host MWEBV	processed	0.06
Global aperture construction	processed	0.68
Global aperture photometry	processed	5.85
Validate global photometry	processed	15.07
Global host SED inference	processed	617.29
Local aperture photometry	processed	5.43
Validate local photometry	processed	0.02
Local host SED inference	processed	503.46

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) = 4h56m45.62s, -10d35m38.59s
semi major axis, semi minor axis (arcsec) = 7.15, 7.15
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	126.15	7.55	18.648	0.065	AB
GALEX_NUV	186.6	7.72	18.223	0.045	AB
DES_g	1452.62	2.11	15.995	0.002	AB
PanSTARRS_g	1462.93	2.64	15.987	0.002	AB
PanSTARRS_r	2345.28	3.31	15.475	0.002	AB
DES_r	2472.56	4.22	15.417	0.002	AB
PanSTARRS_i	2995.73	2.74	15.209	0.001	AB
PanSTARRS_z	3472.88	6.14	15.048	0.002	AB
DES_z	3629.16	9.36	15.000	0.003	AB
PanSTARRS_y	4073.67	14.54	14.875	0.004	AB
2MASS_J	4330.34	182.32	13.914	0.046	Vega
2MASS_H	5060.97	247.92	13.272	0.053	Vega
2MASS_K	4291.98	282.51	12.981	0.071	Vega
WISE_W1	1236.18	29.31	13.471	0.026	Vega
WISE_W2	716.06	24.42	13.424	0.037	Vega
WISE_W3	2351.48	64.82	10.298	0.030	Vega

Aperture details

RA, DEC (J2000) = 4h56m45.91s, -10d35m33.92s
semi major axis, semi minor axis (arcsec) = 58.41, 24.65
angle (degrees, anti-clockwise from east) = -165.46

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
PanSTARRS_r	12305.83	15.99	13.675	0.001	AB
PanSTARRS_i	15342.81	13.62	13.435	0.001	AB
2MASS_K	16326.79	1501.01	11.530	0.100	Vega
WISE_W1	11413.28	155.25	11.057	0.015	Vega
WISE_W3	27139.73	421.88	7.642	0.017	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})\,	9.368	9.436	9.537
{\rm log}_{10}({\rm SFR})	-0.793	-0.579	-0.324
{\rm log}_{10}({\rm sSFR})	-10.236	-10.025	-9.785
{\rm stellar\ age}	7.741	8.789	11.733

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.354	-1.028	-0.831
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	0.027	0.229	0.393

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.080	0.139	0.225
\delta	-0.817	-0.531	-0.220
\tau_1/\tau_2	0.794	1.144	1.513
Q_{PAH}	0.126	0.449	1.018
U_{min}	2.606	7.863	15.354
{\rm log}_{10}(\gamma_e)\,	-3.002	-2.295	-1.535

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-4.435	-3.468	-2.603
{\rm log}_{10}(\tau_{AGN})\,	1.136	1.657	2.018

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.384	-1.195	-1.018
0.03-0.10 Gyr	-0.688	-0.445	-0.176
0.10-0.33 Gyr	-1.910	-1.026	-0.693
0.33-1.10 Gyr	-2.456	-1.468	-1.065
1.10-3.63 Gyr	-2.715	-1.409	-0.867
3.63-12.03 Gyr	-1.083	-0.471	-0.340
12.03-13.37 Gyr	-0.640	-0.035	0.593

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	9.805	9.998	10.171
{\rm log}_{10}({\rm SFR})	-0.897	-0.204	0.381
{\rm log}_{10}({\rm sSFR})	-10.918	-10.250	-9.487
{\rm stellar\ age}	3.973	6.941	8.903

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-1.394	-0.956	-0.612
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.519	-0.724	0.112

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.138	0.270	0.442
\delta	-0.683	-0.203	0.236
\tau_1/\tau_2	0.382	0.795	1.263
Q_{PAH}	0.498	1.549	3.667
U_{min}	2.744	7.900	15.209
{\rm log}_{10}(\gamma_e)\,	-3.513	-2.595	-1.629

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.456	-1.947	-1.630
{\rm log}_{10}(\tau_{AGN})\,	0.856	1.132	1.591

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.127	-0.258	0.067
0.03-0.10 Gyr	-1.800	-0.262	0.496
0.10-0.33 Gyr	-1.874	-0.324	0.371
0.33-1.10 Gyr	-1.550	-0.239	0.288
1.10-3.63 Gyr	-0.981	-0.062	0.334
3.63-12.03 Gyr	-0.997	-0.015	0.306
12.03-13.37 Gyr	-1.181	0.023	0.781