ASASSN-15ss

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Information

Transient

Name: ASASSN-15ss
Right ascension: 6h12m33.39s
Declination: -14d15m26.93s
Discovery Date: None
Classification: SN Ia
Redshift: 0.036190
MW E(B-V): 0.199

Host

Name: ASASSN-15ss
Right ascension: 6h12m33.45s
Declination: -14d15m21.42s
Redshift: None
Photometric Redshift: 0.043
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 1.28
Cutout download processed 2.41
Global aperture construction processed 1.55
Local aperture photometry processed 3.65
Global aperture photometry processed 3.5
Validate local photometry processed 0.02
Validate global photometry processed 9.81
Host information processed 0.12
Global host SED inference processed 407.41
Local host SED inference processed None
Transient information processed 0.0
Transient MWEBV processed 0.03
Host MWEBV processed 0.04
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) = 6h12m33.39s, -14d15m26.93s
semi major axis, semi minor axis (arcsec) = 2.78, 2.78
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 26.08 0.78 20.359 0.032 AB
PanSTARRS_r 49.19 1.23 19.670 0.027 AB
PanSTARRS_i 61.99 1.09 19.419 0.019 AB
PanSTARRS_z 75.33 2.12 19.208 0.031 AB
PanSTARRS_y 76.23 5.69 19.195 0.081 AB

Aperture details

RA, DEC (J2000) = 6h12m33.44s, -14d15m21.36s
semi major axis, semi minor axis (arcsec) = 3.41, 2.68
angle (degrees, anti-clockwise from east) = -119.69

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 31.84 0.84 20.143 0.029 AB
PanSTARRS_r 65.45 1.27 19.360 0.021 AB
PanSTARRS_i 122.15 1.12 18.683 0.010 AB
PanSTARRS_z 191.72 2.12 18.193 0.012 AB
PanSTARRS_y 239.82 5.59 17.950 0.025 AB
2MASS_J 653.12 106.96 15.968 0.178 Vega
2MASS_H 498.37 152.77 15.789 0.333 Vega
2MASS_K 995.02 204.04 14.568 0.223 Vega
WISE_W1 498.0 17.26 14.458 0.038 Vega
WISE_W2 378.42 21.09 14.116 0.061 Vega
WISE_W3 1919.64 72.18 10.518 0.041 Vega
WISE_W4 10992.52 1602.13 7.177 0.158 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})\, 8.389 8.604 8.751
{\rm log}_{10}({\rm SFR}) -1.930 -1.322 -0.796
{\rm log}_{10}({\rm sSFR}) -10.561 -9.952 -9.245
{\rm stellar\ age} 3.786 6.512 7.941

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.639 -1.172 -0.670
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.922 -1.746 -1.136

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.216 0.522 0.856
\delta -0.553 -0.102 0.229
\tau_1/\tau_2 0.759 1.133 1.483
Q_{PAH} 0.929 2.873 5.619
U_{min} 2.892 8.197 15.089
{\rm log}_{10}(\gamma_e)\, -3.156 -1.853 -0.656

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.043 -1.182 -0.322
{\rm log}_{10}(\tau_{AGN})\, 0.983 1.406 1.922

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.034 -1.398 -1.022
0.03-0.10 Gyr -2.195 -1.342 -0.718
0.10-0.33 Gyr -2.035 -1.346 -0.806
0.33-1.09 Gyr -2.084 -1.403 -1.040
1.09-3.61 Gyr -2.007 -1.362 -1.112
3.61-11.94 Gyr -2.003 -1.346 -1.106
11.94-13.27 Gyr -2.187 -1.379 -0.837

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.244 9.453 9.573
{\rm log}_{10}({\rm SFR}) -1.776 -0.948 -0.337
{\rm log}_{10}({\rm sSFR}) -11.192 -10.390 -9.703
{\rm stellar\ age} 3.637 6.736 8.396

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.742 -0.350 -0.034
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.522 -0.865 -0.226

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.421 1.730 2.057
\delta 0.031 0.238 0.348
\tau_1/\tau_2 0.543 0.884 1.232
Q_{PAH} 0.528 1.531 3.632
U_{min} 3.131 8.621 16.410
{\rm log}_{10}(\gamma_e)\, -2.581 -1.601 -0.872

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.290 -1.520 -1.103
{\rm log}_{10}(\tau_{AGN})\, 0.951 1.354 1.772

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.740 -1.203 -0.580
0.03-0.10 Gyr -2.113 -1.000 -0.267
0.10-0.33 Gyr -1.652 -0.777 -0.207
0.33-1.09 Gyr -1.536 -0.697 -0.163
1.09-3.61 Gyr -1.327 -0.560 -0.245
3.61-11.94 Gyr -1.568 -0.531 -0.276
11.94-13.27 Gyr -1.860 -0.608 0.090