2018ast

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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:
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 4.2
Cutout download processed 4.27
Global aperture construction processed 0.6
Local aperture photometry processed 1.4
Global aperture photometry processed 1.63
Validate local photometry processed 0.01
Validate global photometry processed 5.82
Host information processed 0.15
Global host SED inference processed 658.9
Local host SED inference processed 697.53
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.04
Processing status completed N/A N/A
 

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) = 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
 

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})\, 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