ASASSN-15dd

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Information

Transient

Name: ASASSN-15dd
Right ascension: 15h43m59.00s
Declination: 19d12m40.74s
Discovery Date: None
Classification: Ia
Redshift: 0.024793
MW E(B-V): 0.047

Host

Name: ASASSN-15dd
Right ascension: 15h43m58.90s
Declination: 19d12m41.57s
Redshift: 0.024153
Photometric Redshift: 0.036
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 3.18
Cutout download processed 14.57
Global aperture construction processed 0.6
Local aperture photometry processed 4.71
Global aperture photometry processed 3.93
Validate local photometry processed 0.02
Validate global photometry processed 10.8
Host information processed 0.09
Global host SED inference processed 656.62
Local host SED inference processed 498.49
Transient information processed 0.0
Transient MWEBV processed 0.11
Host MWEBV processed 0.07
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) = 15h43m59.00s, 19d12m40.74s
semi major axis, semi minor axis (arcsec) = 4.11, 4.11
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 222.18 5.12 18.033 0.025 AB
SDSS_g 1170.73 8.96 16.229 0.008 AB
PanSTARRS_g 1234.62 1.42 16.171 0.001 AB
SDSS_r 2598.69 13.33 15.363 0.006 AB
PanSTARRS_r 2577.45 1.57 15.372 0.001 AB
SDSS_i 3804.32 16.23 14.949 0.005 AB
PanSTARRS_i 3701.27 1.27 14.979 0.000 AB
PanSTARRS_z 4781.84 3.49 14.701 0.001 AB
SDSS_z 5192.62 21.42 14.612 0.004 AB
PanSTARRS_y 5637.28 7.01 14.522 0.001 AB
2MASS_J 7056.24 109.96 13.384 0.017 Vega
2MASS_H 8859.48 176.79 12.664 0.022 Vega
2MASS_K 7186.79 167.27 12.421 0.025 Vega

Aperture details

RA, DEC (J2000) = 15h43m58.89s, 19d12m41.76s
semi major axis, semi minor axis (arcsec) = 17.14, 15.78
angle (degrees, anti-clockwise from east) = -41.86

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 25.9 3.79 20.367 0.159 AB
GALEX_NUV 23.23 1.57 20.485 0.073 AB
PanSTARRS_g 3181.96 4.94 15.143 0.002 AB
PanSTARRS_r 6453.28 5.37 14.376 0.001 AB
PanSTARRS_i 9325.24 4.18 13.976 0.000 AB
PanSTARRS_z 11710.98 12.68 13.729 0.001 AB
PanSTARRS_y 13680.12 27.08 13.560 0.002 AB
2MASS_J 18216.02 469.2 12.354 0.028 Vega
2MASS_H 22065.07 760.01 11.673 0.037 Vega
2MASS_K 18444.35 725.85 11.398 0.043 Vega
WISE_W1 8571.23 60.44 11.368 0.008 Vega
WISE_W2 4660.82 61.43 11.390 0.014 Vega
WISE_W3 1566.4 163.27 10.739 0.113 Vega
WISE_W4 1714.15 685.76 9.195 0.434 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})\, 9.989 10.126 10.261
{\rm log}_{10}({\rm SFR}) -1.617 -0.533 0.293
{\rm log}_{10}({\rm sSFR}) -11.795 -10.651 -9.710
{\rm stellar\ age} 5.467 7.511 9.611

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.311 -0.739 -0.402
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.809 -0.491 0.220

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.370 0.847 1.152
\delta -0.777 -0.544 -0.086
\tau_1/\tau_2 0.648 1.010 1.411
Q_{PAH} 0.425 1.797 4.981
U_{min} 2.504 7.566 14.912
{\rm log}_{10}(\gamma_e)\, -3.427 -2.277 -1.187

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.463 -2.901 -0.793
{\rm log}_{10}(\tau_{AGN})\, 0.919 1.507 1.998

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.570 -0.440 0.037
0.03-0.10 Gyr -2.059 -0.672 0.373
0.10-0.33 Gyr -1.919 -0.507 0.324
0.33-1.10 Gyr -1.799 -0.335 0.215
1.10-3.65 Gyr -1.151 0.011 0.376
3.65-12.09 Gyr -0.392 0.164 0.398
12.09-13.43 Gyr -0.447 0.318 0.983

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.612 10.689 10.718
{\rm log}_{10}({\rm SFR}) -2.585 -2.053 -1.633
{\rm log}_{10}({\rm sSFR}) -13.235 -12.727 -12.309
{\rm stellar\ age} 10.080 12.664 12.758

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.511 -0.367 -0.245
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.583 -0.781 0.090

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.054 0.112 0.202
\delta -0.383 0.002 0.250
\tau_1/\tau_2 0.462 0.903 1.350
Q_{PAH} 0.338 1.280 3.202
U_{min} 2.952 8.172 16.177
{\rm log}_{10}(\gamma_e)\, -3.000 -1.469 -0.634

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.624 -3.972 -3.089
{\rm log}_{10}(\tau_{AGN})\, 1.062 1.599 1.970

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.614 -2.007 -1.636
0.03-0.10 Gyr -3.814 -2.198 -1.599
0.10-0.33 Gyr -4.701 -2.419 -1.663
0.33-1.10 Gyr -5.362 -2.565 -1.470
1.10-3.65 Gyr -4.030 -2.181 -0.921
3.65-12.09 Gyr -2.373 -0.901 0.654
12.09-13.43 Gyr 1.396 1.805 1.841