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) Warning Flag
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
GALEX_FUV 4.97 1.63 22.159 0.355
GALEX_NUV 4.44 1.39 22.282 0.340
SDSS_u 21.09 6.21 20.590 0.320
SDSS_g 174.12 3.8 18.298 0.024
PanSTARRS_g 194.68 1.48 18.177 0.008
SDSS_r 358.07 5.72 17.515 0.017
PanSTARRS_r 345.12 2.73 17.555 0.009
SDSS_i 526.44 7.73 17.097 0.016
PanSTARRS_i 442.32 3.24 17.286 0.008
PanSTARRS_z 635.5 7.43 16.892 0.013
SDSS_z 626.55 24.98 16.908 0.043
PanSTARRS_y 684.35 17.51 16.812 0.028
2MASS_J 919.34 120.6 15.596 0.142
2MASS_H 1171.26 218.31 14.861 0.202
2MASS_K 1269.43 202.41 14.303 0.173

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

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