2020nbu results

Information

Transient
Name:AT2020nbu
Right ascension: 1h55m00.82s
Declination:-4d41m03.89s
Discovery Date:June 20, 2020, 2:09 p.m.
Classification:None
Redshift:None
MW E(B-V):0.021
Host
Name:
Right ascension: 1h55m00.84s
Declination:-4d41m03.43s
Redshift:None
Photometric Redshift:0.028
 

Cutout Download Report

Downloaded Unavailable
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_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 31.35
Transient MWEBV processed 0.04
Host match processed 6.57
Host information processed 0.15
Host MWEBV processed 0.05
Global aperture construction processed 0.7
Global aperture photometry processed 6.7
Validate global photometry processed 17.98
Global host SED inference processed 658.48
Local aperture photometry processed 7.53
Validate local photometry processed 0.03
Local host SED inference processed 663.11
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):1h55m00.82s, -4d41m03.89s
semi major axis, semi minor axis (arcsec):3.52, 3.52
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 241.18 4.86 17.944 0.022 AB
SDSS_g 510.07 5.94 17.131 0.013 AB
DES_g 521.85 0.78 17.106 0.002 AB
PanSTARRS_g 521.91 1.06 17.106 0.002 AB
SDSS_r 722.99 7.18 16.752 0.011 AB
PanSTARRS_r 717.48 1.11 16.760 0.002 AB
DES_r 774.43 1.18 16.678 0.002 AB
SDSS_i 884.65 8.14 16.533 0.010 AB
PanSTARRS_i 890.46 1.1 16.526 0.001 AB
PanSTARRS_z 949.46 2.71 16.456 0.003 AB
SDSS_z 1047.77 13.1 16.349 0.014 AB
DES_z 1051.6 3.68 16.345 0.004 AB
PanSTARRS_y 1092.74 7.79 16.304 0.008 AB
2MASS_J 1302.84 81.87 15.218 0.068 Vega
2MASS_H 1382.37 124.33 14.681 0.098 Vega
2MASS_K 1138.72 147.66 14.421 0.141 Vega

Aperture details

RA, DEC (J2000):1h55m00.84s, -4d41m03.26s
semi major axis, semi minor axis (arcsec):5.03, 4.11
angle (degrees, anti-clockwise from east):-132.81
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 116.62 5.37 18.733 0.050 AB
SDSS_u 262.13 5.53 17.854 0.023 AB
SDSS_g 555.41 6.24 17.038 0.012 AB
DES_g 562.13 0.82 17.025 0.002 AB
PanSTARRS_g 571.43 1.31 17.008 0.002 AB
SDSS_r 802.62 7.68 16.639 0.010 AB
PanSTARRS_r 805.33 1.38 16.635 0.002 AB
DES_r 845.32 1.25 16.582 0.002 AB
SDSS_i 986.49 8.8 16.415 0.010 AB
PanSTARRS_i 1004.03 1.37 16.396 0.001 AB
PanSTARRS_z 1062.36 3.42 16.334 0.003 AB
SDSS_z 1201.79 15.81 16.200 0.014 AB
DES_z 1151.65 3.89 16.247 0.004 AB
PanSTARRS_y 1253.29 9.92 16.155 0.009 AB
2MASS_J 1665.77 121.46 14.951 0.079 Vega
2MASS_H 1602.89 182.9 14.520 0.124 Vega
2MASS_K 1587.51 219.79 14.060 0.150 Vega
WISE_W1 1023.48 16.62 13.676 0.018 Vega
WISE_W2 619.02 18.87 13.582 0.033 Vega
WISE_W3 777.15 57.8 11.500 0.081 Vega
WISE_W4 2022.03 446.12 9.016 0.240 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.230 9.414 9.566
{\rm log}_{10}({\rm SFR}) -0.334 0.372 0.942
{\rm log}_{10}({\rm sSFR}) -9.749 -9.041 -8.351
{\rm stellar\ age} 1.978 6.663 9.438

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.785 -1.393 -0.864
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.435 0.102 0.407

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.247 0.789 1.313
\delta -0.259 -0.046 0.187
\tau_1/\tau_2 0.583 1.040 1.517
Q_{PAH} 0.618 1.787 3.525
U_{min} 3.339 9.278 17.246
{\rm log}_{10}(\gamma_e)\, -3.523 -2.418 -1.124

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.363 -3.019 -0.926
{\rm log}_{10}(\tau_{AGN})\, 0.907 1.444 1.970

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.504 -0.828 -0.290
0.03-0.10 Gyr -0.209 0.520 1.099
0.10-0.33 Gyr -2.329 -0.695 0.154
0.33-1.10 Gyr -4.047 -1.384 -0.513
1.10-3.63 Gyr -3.579 -1.025 -0.390
3.63-12.04 Gyr -3.005 -0.740 -0.356
12.04-13.38 Gyr -3.372 -0.618 0.377

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.209 9.320 9.420
{\rm log}_{10}({\rm SFR}) -0.151 0.119 0.338
{\rm log}_{10}({\rm sSFR}) -9.525 -9.213 -8.921
{\rm stellar\ age} 3.694 5.849 7.348

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.621 -0.375 -0.186
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.465 0.158 0.407

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.320 0.508 0.700
\delta 0.164 0.294 0.370
\tau_1/\tau_2 0.441 0.795 1.140
Q_{PAH} 0.332 0.866 1.886
U_{min} 2.647 7.114 13.129
{\rm log}_{10}(\gamma_e)\, -3.734 -3.230 -2.355

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.888 -2.142 -1.844
{\rm log}_{10}(\tau_{AGN})\, 0.790 0.934 1.219

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.288 -0.791 -0.532
0.03-0.10 Gyr -0.022 0.265 0.487
0.10-0.33 Gyr -0.794 -0.255 0.057
0.33-1.10 Gyr -1.080 -0.565 -0.298
1.10-3.63 Gyr -0.934 -0.538 -0.288
3.63-12.04 Gyr -1.362 -0.738 -0.514
12.04-13.38 Gyr -1.497 -0.715 -0.184