2020ddw

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Information

Transient

Name: 2020ddw
Right ascension: 4h50m02.84s
Declination: 82d38m54.67s
Discovery Date: None
Classification: SNIa
Redshift: 0.018129
MW E(B-V): 0.075

Host

Name: 2020ddw
Right ascension: 4h49m57.58s
Declination: 82d39m01.80s
Redshift: 0.018129
Photometric Redshift: 0.015

Processing Status

Task Name	Status	Time taken (s)
Host match	processed	0.88
Cutout download	processed	14.14
Global aperture construction	processed	0.62
Local aperture photometry	processed	4.78
Global aperture photometry	processed	4.99
Validate local photometry	processed	0.02
Validate global photometry	processed	14.74
Host information	processed	0.08
Global host SED inference	processed	459.81
Local host SED inference	processed	767.77
Transient information	processed	0.0
Transient MWEBV	processed	0.07
Host MWEBV	processed	0.05
Log transient processing status	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) = 4h50m02.84s, 82d38m54.67s
semi major axis, semi minor axis (arcsec) = 5.43, 5.43
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	4.97	1.63	22.159	0.355	AB
GALEX_NUV	4.44	1.39	22.282	0.340	AB
SDSS_u	21.09	6.21	20.590	0.320	AB
SDSS_g	174.12	3.8	18.298	0.024	AB
PanSTARRS_g	194.68	1.48	18.177	0.008	AB
SDSS_r	358.07	5.72	17.515	0.017	AB
PanSTARRS_r	345.12	2.73	17.555	0.009	AB
SDSS_i	526.44	7.73	17.097	0.016	AB
PanSTARRS_i	442.32	3.24	17.286	0.008	AB
PanSTARRS_z	635.5	7.43	16.892	0.013	AB
SDSS_z	626.55	24.98	16.908	0.043	AB
PanSTARRS_y	684.35	17.51	16.812	0.028	AB
2MASS_J	919.34	120.6	15.596	0.142	Vega
2MASS_H	1171.26	218.31	14.861	0.202	Vega
2MASS_K	1269.43	202.41	14.303	0.173	Vega

Aperture details

RA, DEC (J2000) = 4h49m57.61s, 82d39m02.29s
semi major axis, semi minor axis (arcsec) = 22.92, 15.93
angle (degrees, anti-clockwise from east) = -169.63

Filter	Flux ${\rm (\mu Jy)}$	Flux error ${\rm (\mu Jy)}$	Mag	Mag error	Mag sys
GALEX_FUV	83.33	6.66	19.098	0.087	AB
GALEX_NUV	80.07	5.95	19.141	0.081	AB
SDSS_u	770.97	22.88	16.682	0.032	AB
SDSS_g	4328.75	18.06	14.809	0.005	AB
PanSTARRS_g	4671.74	5.28	14.726	0.001	AB
SDSS_r	9408.82	27.26	13.966	0.003	AB
PanSTARRS_r	9532.67	9.66	13.952	0.001	AB
PanSTARRS_i	13269.4	11.34	13.593	0.001	AB
PanSTARRS_z	17979.9	25.65	13.263	0.002	AB
SDSS_z	18603.73	92.23	13.226	0.005	AB
PanSTARRS_y	22631.6	62.67	13.013	0.003	AB
2MASS_J	29784.99	461.88	11.820	0.017	Vega
2MASS_H	36873.91	830.22	11.116	0.024	Vega
2MASS_K	33335.23	773.15	10.755	0.025	Vega
WISE_W1	16688.07	70.86	10.645	0.005	Vega
WISE_W2	9483.29	76.87	10.619	0.009	Vega
WISE_W3	16043.19	206.11	8.213	0.014	Vega
WISE_W4	17027.4	1534.01	6.702	0.098	Vega

Imaging data

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	8.925	9.017	9.142
${\rm log}_{10}({\rm SFR})$	-2.392	-1.839	-1.424
${\rm log}_{10}({\rm sSFR})$	-11.427	-10.869	-10.489
${\rm stellar\ age}$	5.742	7.687	10.636

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-0.911	-0.420	-0.123
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.455	-1.108	-0.873

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.137	0.567	0.914
$\delta$	-0.600	-0.145	0.153
$\tau_1/\tau_2$	0.333	0.633	0.961
$Q_{PAH}$	1.760	3.801	5.980
$U_{min}$	3.043	8.287	15.738
${\rm log}_{10}(\gamma_e)\,$	-2.429	-1.238	-0.412

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-4.244	-2.672	-0.681
${\rm log}_{10}(\tau_{AGN})\,$	0.854	1.399	1.863

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-2.056	-1.442	-1.015
0.03-0.10 Gyr	-3.872	-2.584	-1.873
0.10-0.33 Gyr	-4.099	-2.514	-1.782
0.33-1.10 Gyr	-3.075	-1.562	-0.864
1.10-3.66 Gyr	-2.383	-1.011	-0.686
3.66-12.16 Gyr	-1.501	-0.964	-0.749
12.16-13.52 Gyr	-1.363	-0.768	0.015

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(M_{\ast}/M_{\odot})\,$	10.527	10.571	10.612
${\rm log}_{10}({\rm SFR})$	-1.451	-1.156	-0.944
${\rm log}_{10}({\rm sSFR})$	-12.025	-11.728	-11.496
${\rm stellar\ age}$	7.813	8.424	10.143

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(Z_{\ast}/Z_{\odot})$	-0.100	0.008	0.080
${\rm log}_{10}(Z_{gas}/Z_{\odot})\,$	-1.312	-0.523	0.126

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
$\tau_2$	0.135	0.189	0.256
$\delta$	-0.352	-0.028	0.241
$\tau_1/\tau_2$	0.325	0.730	1.138
$Q_{PAH}$	3.166	4.460	5.709
$U_{min}$	2.864	8.147	15.184
${\rm log}_{10}(\gamma_e)\,$	-1.887	-1.314	-0.677

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
${\rm log}_{10}(f_{AGN})\,$	-4.541	-3.839	-2.823
${\rm log}_{10}(\tau_{AGN})\,$	1.156	1.694	2.002

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-1.078	-0.858	-0.668
0.03-0.10 Gyr	-3.199	-1.535	-1.039
0.10-0.33 Gyr	-2.994	-1.490	-0.884
0.33-1.10 Gyr	-1.966	-0.993	-0.416
1.10-3.66 Gyr	-0.916	-0.014	0.454
3.66-12.16 Gyr	0.485	0.735	0.829
12.16-13.52 Gyr	0.359	0.888	1.421