2018ast results

Information

Transient
Name:SN2018ast
Right ascension: 11h41m07.98s
Declination:24d49m10.38s
Discovery Date:April 8, 2018, 12:34 p.m.
Classification:SN Ia-91bg-like
Redshift:0.012000
MW E(B-V):0.022
Host
Name:NGC3812
Right ascension: 11h41m07.68s
Declination:24d49m18.06s
Redshift:0.012012
Photometric Redshift:None
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
PanSTARRS_g
GALEX_NUV
GALEX_FUV
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: blocked

Task Name Status Time (s)
Cutout download processed 4.27
Transient MWEBV processed 0.06
Host match processed 4.2
Host information processed 0.15
Host MWEBV processed 0.04
Global aperture construction processed 0.6
Global aperture photometry processed 1.63
Validate global photometry processed 5.82
Global host SED inference processed 658.9
Local aperture photometry processed 1.4
Validate local photometry processed 0.01
Local host SED inference processed 697.53
 

Imaging data


 

Spectral Energy Distribution


 

Aperture Photometry


Aperture details

RA, DEC (J2000):11h41m07.98s, 24d49m10.38s
semi major axis, semi minor axis (arcsec):8.14, 8.14
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 3782.91 3.01 14.955 0.001 AB
2MASS_J 25303.2 216.95 11.997 0.009 Vega
2MASS_H 32091.39 343.58 11.266 0.012 Vega
2MASS_K 26450.9 359.93 11.006 0.015 Vega
WISE_W1 9850.04 337.25 11.217 0.037 Vega
WISE_W2 4953.56 68.15 11.324 0.015 Vega
WISE_W3 1407.33 85.4 10.855 0.066 Vega

Aperture details

RA, DEC (J2000):11h41m07.71s, 24d49m18.49s
semi major axis, semi minor axis (arcsec):23.76, 21.77
angle (degrees, anti-clockwise from east):-113.3
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 16049.63 7.79 13.386 0.001 AB
2MASS_J 87750.34 600.01 10.647 0.007 Vega
2MASS_H 108204.69 956.46 9.947 0.010 Vega
2MASS_K 88529.12 1006.14 9.694 0.012 Vega
WISE_W1 42249.16 924.04 9.636 0.024 Vega
WISE_W2 22022.58 189.87 9.704 0.009 Vega
WISE_W3 8303.13 292.59 8.928 0.038 Vega
WISE_W4 10068.5 1375.8 7.273 0.148 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.025 10.131 10.230
{\rm log}_{10}({\rm SFR}) -3.520 -1.839 -0.934
{\rm log}_{10}({\rm sSFR}) -13.701 -11.975 -11.009
{\rm stellar\ age} 7.853 9.981 12.668

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.120 -0.673 -0.313
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.634 -0.554 0.229

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.256 0.473 0.677
\delta -0.914 -0.721 -0.449
\tau_1/\tau_2 0.411 0.807 1.215
Q_{PAH} 0.180 0.587 1.521
U_{min} 2.906 8.697 16.397
{\rm log}_{10}(\gamma_e)\, -3.642 -2.992 -1.661

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.601 -3.894 -2.930
{\rm log}_{10}(\tau_{AGN})\, 1.057 1.583 1.984

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.976 -1.995 -1.041
0.03-0.10 Gyr -4.584 -2.157 -1.017
0.10-0.33 Gyr -4.669 -2.106 -0.883
0.33-1.10 Gyr -4.430 -1.945 -0.896
1.10-3.64 Gyr -3.952 -1.525 -0.181
3.64-12.06 Gyr -1.783 0.024 0.318
12.06-13.40 Gyr -0.022 0.923 1.342

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.624 10.720 10.801
{\rm log}_{10}({\rm SFR}) -3.870 -2.037 -0.818
{\rm log}_{10}({\rm sSFR}) -14.852 -12.742 -11.497
{\rm stellar\ age} 7.960 11.035 12.716

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.718 -0.426 -0.184
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.515 -0.731 0.072

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.064 0.245 0.455
\delta -0.742 -0.343 0.005
\tau_1/\tau_2 0.290 0.777 1.218
Q_{PAH} 0.159 0.567 2.260
U_{min} 2.707 7.615 14.980
{\rm log}_{10}(\gamma_e)\, -3.698 -3.144 -1.655

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.681 -4.126 -3.300
{\rm log}_{10}(\tau_{AGN})\, 1.073 1.623 1.961

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -4.805 -2.269 -1.164
0.03-0.10 Gyr -4.841 -2.188 -0.841
0.10-0.33 Gyr -5.229 -2.393 -0.894
0.33-1.10 Gyr -5.093 -2.256 -0.790
1.10-3.64 Gyr -3.790 -1.537 0.079
3.64-12.06 Gyr -1.866 0.461 0.902
12.06-13.40 Gyr 0.541 1.670 1.921