ASASSN-15ga

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Information

Transient

Name: ASASSN-15ga
Right ascension: 12h59m27.00s
Declination: 14d10m15.79s
Discovery Date: None
Classification: Ia-91bg
Redshift: 0.007629
MW E(B-V): 0.024

Host

Name: ASASSN-15ga
Right ascension: 12h59m27.10s
Declination: 14d10m14.88s
Redshift: None
Photometric Redshift:
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 0.72
Cutout download processed 14.67
Global aperture construction processed 1.47
Local aperture photometry processed 4.74
Global aperture photometry processed 6.49
Validate local photometry processed 0.02
Validate global photometry processed 34.17
Host information processed 0.08
Global host SED inference processed 735.99
Local host SED inference processed 766.37
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.1
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) = 12h59m27.00s, 14d10m15.79s
semi major axis, semi minor axis (arcsec) = 12.74, 12.74
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux (μJy){\rm (\mu Jy)} Flux error (μJy){\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 46.2 6.72 19.738 0.158 AB
GALEX_NUV 140.95 4.78 18.527 0.037 AB
SDSS_u 3667.61 19.95 14.989 0.006 AB
SDSS_g 21186.21 39.87 13.085 0.002 AB
PanSTARRS_g 19307.94 7.83 13.186 0.000 AB
SDSS_r 47020.87 64.09 12.219 0.001 AB
PanSTARRS_r 47622.32 12.43 12.205 0.000 AB
SDSS_i 70875.0 83.2 11.774 0.001 AB
PanSTARRS_i 70083.81 17.78 11.786 0.000 AB
PanSTARRS_z 93436.93 25.46 11.474 0.000 AB
SDSS_z 100421.14 113.36 11.395 0.001 AB
PanSTARRS_y 116028.02 36.24 11.239 0.000 AB
2MASS_J 144670.17 270.29 10.104 0.002 Vega
2MASS_H 179664.12 441.24 9.396 0.003 Vega
2MASS_K 148339.76 447.01 9.134 0.003 Vega
WISE_W1 50377.28 646.11 9.445 0.014 Vega
WISE_W2 25809.95 331.59 9.532 0.014 Vega
WISE_W3 8069.47 191.99 8.959 0.026 Vega
WISE_W4 2898.2 630.01 8.625 0.236 Vega

Aperture details

RA, DEC (J2000) = 12h59m27.06s, 14d10m15.08s
semi major axis, semi minor axis (arcsec) = 74.28, 29.15
angle (degrees, anti-clockwise from east) = -89.72

Filter Flux (μJy){\rm (\mu Jy)} Flux error (μJy){\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 259.01 15.92 17.867 0.067 AB
GALEX_NUV 479.56 12.8 17.198 0.029 AB
SDSS_g 57505.94 75.85 12.001 0.001 AB
PanSTARRS_g 67497.79 25.35 11.827 0.000 AB
PanSTARRS_r 134757.75 39.36 11.076 0.000 AB
SDSS_i 172596.09 183.95 10.807 0.001 AB
PanSTARRS_z 252171.9 82.51 10.396 0.000 AB
SDSS_z 263937.89 282.66 10.346 0.001 AB
PanSTARRS_y 308991.05 119.97 10.175 0.000 AB
WISE_W1 175740.35 2449.74 8.089 0.015 Vega
WISE_W2 96489.17 1301.95 8.100 0.015 Vega
WISE_W3 31301.11 845.31 7.487 0.029 Vega
WISE_W4 18016.77 3085.81 6.641 0.186 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
log10(M∗/M⊙) {\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.467 10.576 10.622
log10(SFR){\rm log}_{10}({\rm SFR}) -2.250 -1.546 -0.989
log10(sSFR){\rm log}_{10}({\rm sSFR}) -12.792 -12.045 -11.523
stellar age{\rm stellar\ age} 8.808 12.217 12.764

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
log10(Z∗/Z⊙){\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.581 -0.405 -0.273
log10(Zgas/Z⊙) {\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.043 -0.201 0.288

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
τ2\tau_2 0.182 0.266 0.371
δ\delta -0.957 -0.850 -0.695
τ1/τ2\tau_1/\tau_2 0.504 0.876 1.242
QPAHQ_{PAH} 0.199 0.678 1.432
UminU_{min} 2.998 8.321 15.498
log10(γe) {\rm log}_{10}(\gamma_e)\, -3.432 -2.569 -1.746

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
log10(fAGN) {\rm log}_{10}(f_{AGN})\, -4.644 -3.870 -2.890
log10(τAGN) {\rm log}_{10}(\tau_{AGN})\, 1.130 1.642 2.020

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.502 -1.613 -0.922
0.03-0.10 Gyr -2.893 -1.731 -1.071
0.10-0.33 Gyr -3.324 -1.781 -1.077
0.33-1.10 Gyr -4.162 -1.954 -1.071
1.10-3.65 Gyr -4.051 -2.153 -0.759
3.65-12.11 Gyr -1.914 -0.108 0.648
12.11-13.45 Gyr 0.904 1.653 1.738

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
log10(M∗/M⊙) {\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.926 11.002 11.030
log10(SFR){\rm log}_{10}({\rm SFR}) -2.552 -1.924 -1.474
log10(sSFR){\rm log}_{10}({\rm sSFR}) -13.566 -12.929 -12.451
stellar age{\rm stellar\ age} 10.148 12.696 12.778

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
log10(Z∗/Z⊙){\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.369 -0.250 -0.115
log10(Zgas/Z⊙) {\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.391 -0.530 0.151

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
τ2\tau_2 0.042 0.103 0.175
δ\delta -0.772 -0.386 -0.022
τ1/τ2\tau_1/\tau_2 0.521 0.927 1.366
QPAHQ_{PAH} 0.318 0.926 2.136
UminU_{min} 3.086 8.446 16.054
log10(γe) {\rm log}_{10}(\gamma_e)\, -3.087 -2.271 -1.403

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
log10(fAGN) {\rm log}_{10}(f_{AGN})\, -4.643 -3.996 -3.126
log10(τAGN) {\rm log}_{10}(\tau_{AGN})\, 1.039 1.547 1.942

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.678 -1.916 -1.475
0.03-0.10 Gyr -3.750 -2.095 -1.428
0.10-0.33 Gyr -4.546 -2.288 -1.435
0.33-1.10 Gyr -4.985 -2.519 -1.450
1.10-3.65 Gyr -3.742 -1.973 -0.818
3.65-12.11 Gyr -2.053 -0.592 0.961
12.11-13.45 Gyr 1.710 2.116 2.153