2020usn

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Information

Transient

Name: 2020usn
Right ascension: 3h35m12.77s
Declination: -1d19m34.49s
Discovery Date: None
Classification: None
Redshift: 0.200000
MW E(B-V): 0.129

Host

Name: 2020usn
Right ascension: 3h35m12.75s
Declination: -1d19m33.77s
Redshift: None
Photometric Redshift: 0.207
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 2.06
Cutout download processed 3.58
Global aperture construction processed 0.89
Local aperture photometry processed 6.26
Global aperture photometry processed 3.68
Validate local photometry no valid phot 0.02
Validate global photometry processed 11.7
Host information processed 0.09
Global host SED inference processed 421.38
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.1
Log transient processing status blocked 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) = 3h35m12.77s, -1d19m34.49s
semi major axis, semi minor axis (arcsec) = 0.61, 0.61
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error

Aperture details

RA, DEC (J2000) = 3h35m12.74s, -1d19m33.62s
semi major axis, semi minor axis (arcsec) = 4.11, 3.32
angle (degrees, anti-clockwise from east) = -52.68

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error
GALEX_FUV 0.13 0.46 26.142 3.949
GALEX_NUV 0.41 0.37 24.859 0.963
PanSTARRS_g 16.85 0.8 20.834 0.052
PanSTARRS_r 36.46 0.99 19.995 0.030
PanSTARRS_i 64.3 0.98 19.379 0.016
PanSTARRS_z 81.43 2.17 19.123 0.029
PanSTARRS_y 97.77 4.92 18.924 0.055
2MASS_J 260.0 102.76 16.968 0.429
2MASS_H -4.18 146.78
2MASS_K 117.75 202.27 16.885 1.865
WISE_W1 72.56 10.27 16.549 0.154
WISE_W2 41.69 14.41 16.511 0.375
WISE_W3 -21.73 84.0
WISE_W4 -1441.29 561.62
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.910 10.114 10.293
{\rm log}_{10}({\rm SFR}) -0.630 0.218 0.806
{\rm log}_{10}({\rm sSFR}) -10.901 -9.925 -9.238
{\rm stellar\ age} 1.546 4.508 6.289

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.482 -0.928 -0.299
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.397 -0.019 0.349

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.586 0.814 1.053
\delta -0.718 -0.500 -0.267
\tau_1/\tau_2 0.537 0.932 1.312
Q_{PAH} 0.569 1.672 3.360
U_{min} 2.779 8.274 15.384
{\rm log}_{10}(\gamma_e)\, -3.224 -2.407 -1.423

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.965 -2.317 -1.315
{\rm log}_{10}(\tau_{AGN})\, 0.993 1.393 1.829

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.022 -0.091 0.305
0.03-0.10 Gyr -0.902 0.253 0.936
0.10-0.32 Gyr -0.278 0.635 1.105
0.32-1.01 Gyr -0.352 0.459 0.898
1.01-3.20 Gyr -1.127 0.197 0.546
3.20-10.18 Gyr -1.438 0.044 0.448
10.18-11.31 Gyr -1.588 0.009 0.660