ASASSN-15as

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Information

Transient

Name: ASASSN-15as
Right ascension: 9h39m17.00s
Declination: 6d25m48.53s
Discovery Date: None
Classification: Ia
Redshift: 0.029735
MW E(B-V): 0.039

Host

Name: ASASSN-15as
Right ascension: 9h39m16.69s
Declination: 6d25m51.03s
Redshift: 0.028000
Photometric Redshift: 0.151
 

Processing Status

Task Name Status Time taken (s) Warning Flag
Host match processed 3.34
Cutout download processed 18.0
Global aperture construction processed 0.87
Local aperture photometry processed 4.91
Global aperture photometry processed 7.43
Validate local photometry processed 0.03
Validate global photometry processed 15.56
Host information processed 0.09
Global host SED inference processed 846.62
Local host SED inference processed 647.9
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.06
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) = 9h39m17.00s, 6d25m48.53s
semi major axis, semi minor axis (arcsec) = 3.56, 3.56
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 15.42 2.75 20.930 0.193 AB
SDSS_g 7.02 1.3 21.784 0.202 AB
PanSTARRS_g 1.57 0.78 23.411 0.542 AB
SDSS_r 7.84 2.03 21.665 0.281 AB
PanSTARRS_r 9.49 0.69 21.457 0.079 AB
DES_r 13.19 0.48 21.100 0.040 AB
SDSS_i 17.62 3.55 20.785 0.219 AB
PanSTARRS_i 16.28 1.44 20.871 0.096 AB
PanSTARRS_z 17.62 2.38 20.785 0.147 AB
SDSS_z 25.52 11.77 20.383 0.501 AB
PanSTARRS_y 32.78 5.77 20.111 0.191 AB
2MASS_J -112.79 121.62 Vega
2MASS_H 364.52 179.11 16.128 0.533 Vega
2MASS_K -358.12 197.44 Vega

Aperture details

RA, DEC (J2000) = 9h39m16.69s, 6d25m50.75s
semi major axis, semi minor axis (arcsec) = 7.06, 5.62
angle (degrees, anti-clockwise from east) = -162.77

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 6.34 0.79 21.896 0.135 AB
GALEX_NUV 7.34 0.75 21.736 0.110 AB
SDSS_u 57.75 5.1 19.496 0.096 AB
SDSS_g 36.43 2.54 19.996 0.076 AB
PanSTARRS_g 33.5 1.38 20.087 0.045 AB
SDSS_r 48.03 3.76 19.696 0.085 AB
PanSTARRS_r 51.71 1.19 19.616 0.025 AB
DES_r 54.42 0.87 19.561 0.017 AB
SDSS_i 55.13 6.23 19.546 0.123 AB
PanSTARRS_i 60.69 2.42 19.442 0.043 AB
PanSTARRS_z 64.95 4.07 19.369 0.068 AB
SDSS_z 61.37 20.67 19.430 0.366 AB
PanSTARRS_y 91.05 9.66 19.002 0.115 AB
2MASS_J -54.77 269.8 Vega
2MASS_H -192.74 391.78 Vega
2MASS_K -894.91 437.9 Vega
WISE_W1 85.41 14.23 16.372 0.181 Vega
WISE_W2 36.23 18.36 16.663 0.550 Vega
WISE_W3 -7.05 111.58 Vega
WISE_W4 -497.07 607.85 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})\, 7.060 7.555 7.855
{\rm log}_{10}({\rm SFR}) -1.533 -1.110 -0.713
{\rm log}_{10}({\rm sSFR}) -9.343 -8.512 -7.944
{\rm stellar\ age} 0.221 5.123 7.893

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.506 -0.749 -0.014
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.652 -0.302 0.024

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.683 1.190 1.822
\delta 0.020 0.213 0.336
\tau_1/\tau_2 0.697 1.077 1.467
Q_{PAH} 0.480 1.537 3.840
U_{min} 2.918 8.709 16.517
{\rm log}_{10}(\gamma_e)\, -3.223 -2.190 -0.970

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.374 -1.279 -0.189
{\rm log}_{10}(\tau_{AGN})\, 1.043 1.492 1.883

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.896 -1.415 -1.004
0.03-0.10 Gyr -1.613 -1.050 -0.600
0.10-0.33 Gyr -4.669 -2.907 -1.769
0.33-1.10 Gyr -5.946 -3.352 -2.314
1.10-3.64 Gyr -5.642 -3.046 -2.246
3.64-12.04 Gyr -5.501 -2.804 -2.119
12.04-13.38 Gyr -5.580 -2.709 -1.786

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.361 7.767 8.203
{\rm log}_{10}({\rm SFR}) -0.745 -0.491 -0.055
{\rm log}_{10}({\rm sSFR}) -8.667 -8.017 -7.914
{\rm stellar\ age} 0.064 1.013 6.970

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.591 -0.946 -0.071
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.179 0.350 0.452

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.457 0.844 1.362
\delta -0.275 -0.057 0.077
\tau_1/\tau_2 0.450 0.987 1.562
Q_{PAH} 0.478 1.737 3.677
U_{min} 3.664 10.494 18.254
{\rm log}_{10}(\gamma_e)\, -3.351 -2.165 -1.006

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.991 -2.387 -1.188
{\rm log}_{10}(\tau_{AGN})\, 0.969 1.369 1.824

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.834 -1.317 -0.943
0.03-0.10 Gyr -0.619 -0.351 0.096
0.10-0.33 Gyr -4.643 -3.486 -1.936
0.33-1.10 Gyr -7.857 -5.423 -2.802
1.10-3.64 Gyr -8.837 -4.527 -2.352
3.64-12.04 Gyr -8.929 -4.002 -2.041
12.04-13.38 Gyr -8.830 -3.674 -1.560