ASASSN-18iu results

Information

Transient
Name:ASASSN-18iu
Right ascension: 17h57m40.32s
Declination:50d02m18.96s
Discovery Date:None
Classification:None
Redshift:0.022300
MW E(B-V):0.036
Host
Name:
Right ascension: 17h57m40.56s
Declination:50d02m00.46s
Redshift:None
Photometric Redshift:0.021
 

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_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 25.74
Transient MWEBV processed 0.06
Host match processed 6.69
Host information processed 0.14
Host MWEBV processed 0.05
Global aperture construction processed 0.65
Global aperture photometry processed 4.77
Validate global photometry processed 14.75
Global host SED inference processed 477.88
Local aperture photometry processed 5.36
Validate local photometry processed 0.02
Local host SED inference processed 475.34
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):17h57m40.32s, 50d02m18.96s
semi major axis, semi minor axis (arcsec):4.44, 4.44
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 6.1 2.04 21.937 0.363 AB
SDSS_u 8.26 4.42 21.608 0.581 AB
SDSS_g 16.32 1.84 20.869 0.122 AB
PanSTARRS_g 13.31 1.18 21.089 0.097 AB
SDSS_r 19.52 2.67 20.674 0.149 AB
PanSTARRS_r 16.45 1.17 20.860 0.077 AB
SDSS_i 4.95 3.89 22.162 0.851 AB
PanSTARRS_i 20.37 1.43 20.628 0.076 AB
PanSTARRS_z 21.85 2.96 20.551 0.147 AB
SDSS_z -43.04 18.54 AB
PanSTARRS_y 10.17 6.43 21.382 0.686 AB
2MASS_J -152.2 100.2 Vega
2MASS_H 106.89 150.29 17.460 1.526 Vega
2MASS_K 81.77 152.83 17.281 2.029 Vega

Aperture details

RA, DEC (J2000):17h57m40.52s, 50d02m00.81s
semi major axis, semi minor axis (arcsec):20.79, 11.43
angle (degrees, anti-clockwise from east):-150.95
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 187.49 6.81 18.218 0.039 AB
PanSTARRS_y 1947.91 22.18 15.676 0.012 AB
2MASS_J 2305.93 354.38 14.598 0.167 Vega
2MASS_H 1702.46 529.81 14.455 0.338 Vega
2MASS_K 1194.37 539.46 14.369 0.490 Vega
WISE_W2 529.65 24.32 13.751 0.050 Vega
WISE_W3 680.36 107.38 11.644 0.171 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 6.989 7.426 7.636
{\rm log}_{10}({\rm SFR}) -2.716 -2.028 -1.208
{\rm log}_{10}({\rm sSFR}) -10.202 -9.509 -8.077
{\rm stellar\ age} 0.390 5.216 7.287

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.690 -1.139 -0.403
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.447 -0.665 -0.047

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.266 0.594 1.006
\delta -0.525 -0.093 0.233
\tau_1/\tau_2 0.641 1.023 1.410
Q_{PAH} 0.615 1.938 4.314
U_{min} 3.044 8.514 16.164
{\rm log}_{10}(\gamma_e)\, -3.107 -1.988 -0.567

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.677 -0.393 0.193
{\rm log}_{10}(\tau_{AGN})\, 1.195 1.517 1.899

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.312 -2.338 -1.840
0.03-0.10 Gyr -2.850 -1.992 -1.061
0.10-0.33 Gyr -3.727 -2.308 -1.669
0.33-1.10 Gyr -4.919 -2.516 -2.005
1.10-3.65 Gyr -5.441 -2.600 -2.218
3.65-12.11 Gyr -5.807 -2.756 -2.279
12.11-13.46 Gyr -5.491 -2.790 -2.137

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.205 9.387 9.529
{\rm log}_{10}({\rm SFR}) -1.031 -0.646 -0.256
{\rm log}_{10}({\rm sSFR}) -10.473 -10.048 -9.622
{\rm stellar\ age} 4.541 7.067 8.722

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.304 -0.838 -0.499
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.619 -0.913 -0.116

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.042 0.121 0.244
\delta -0.760 -0.298 0.170
\tau_1/\tau_2 0.389 0.795 1.210
Q_{PAH} 0.240 0.782 2.235
U_{min} 2.668 7.425 14.112
{\rm log}_{10}(\gamma_e)\, -3.519 -2.673 -1.585

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.390 -3.527 -2.519
{\rm log}_{10}(\tau_{AGN})\, 1.004 1.473 1.908

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.443 -0.744 -0.457
0.03-0.10 Gyr -1.483 -0.657 -0.147
0.10-0.33 Gyr -1.367 -0.690 -0.144
0.33-1.10 Gyr -1.521 -0.780 -0.347
1.10-3.65 Gyr -1.363 -0.710 -0.380
3.65-12.11 Gyr -1.195 -0.575 -0.340
12.11-13.46 Gyr -1.391 -0.540 0.072