2020alk

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Information

Transient

Name: AT2020alk
Right ascension: 9h31m59.01s
Declination: -20d30m18.11s
Discovery Date: Jan. 19, 2020, 12:48 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.050

Host

Name: 2020alk
Right ascension: 9h31m59.13s
Declination: -20d30m15.96s
Redshift: 0.087183
Photometric Redshift: 0.082
 

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 1.99
Cutout download processed 4.55
Global aperture construction processed 0.7
Local aperture photometry processed 4.83
Global aperture photometry processed 5.06
Validate local photometry processed 0.02
Validate global photometry processed 13.79
Host information processed 0.1
Global host SED inference processed 435.33
Local host SED inference processed 488.17
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.06
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) = 9h31m59.01s, -20d30m18.11s
semi major axis, semi minor axis (arcsec) = 1.23, 1.23
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_r 52.84 0.43 19.593 0.009 AB
PanSTARRS_i 79.68 0.53 19.147 0.007 AB
PanSTARRS_z 102.84 0.95 18.870 0.010 AB
DES_z 133.1 4.39 18.590 0.036 AB
PanSTARRS_y 130.8 2.09 18.608 0.017 AB

Aperture details

RA, DEC (J2000) = 9h31m59.13s, -20d30m15.65s
semi major axis, semi minor axis (arcsec) = 13.56, 4.44
angle (degrees, anti-clockwise from east) = -134.3

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 14.71 2.9 20.981 0.214 AB
GALEX_NUV 9.86 2.31 21.415 0.254 AB
PanSTARRS_g 317.37 1.73 17.646 0.006 AB
PanSTARRS_r 615.16 2.56 16.928 0.005 AB
PanSTARRS_i 930.63 3.15 16.478 0.004 AB
PanSTARRS_z 1153.36 5.81 16.245 0.005 AB
DES_z 1284.27 14.4 16.128 0.012 AB
PanSTARRS_y 1439.45 13.13 16.005 0.010 AB
2MASS_J 1996.7 220.32 14.754 0.120 Vega
2MASS_H 2968.23 285.8 13.851 0.105 Vega
2MASS_K 3268.09 430.03 13.276 0.143 Vega
WISE_W1 1422.4 22.5 13.318 0.017 Vega
WISE_W2 1063.85 29.87 12.994 0.030 Vega
WISE_W3 5363.15 104.13 9.402 0.021 Vega
WISE_W4 5953.62 693.23 7.843 0.126 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})\, 9.668 9.798 9.906
{\rm log}_{10}({\rm SFR}) -1.314 -0.625 -0.096
{\rm log}_{10}({\rm sSFR}) -11.131 -10.438 -9.849
{\rm stellar\ age} 5.981 7.697 11.349

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.784 -0.231 0.075
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.263 -0.527 0.234

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.374 0.915 1.391
\delta -0.273 0.038 0.286
\tau_1/\tau_2 0.640 1.001 1.377
Q_{PAH} 0.891 2.995 5.295
U_{min} 3.226 8.199 15.093
{\rm log}_{10}(\gamma_e)\, -3.134 -1.980 -0.548

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.835 -0.833 -0.175
{\rm log}_{10}(\tau_{AGN})\, 0.979 1.438 1.908

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.854 -0.970 -0.413
0.03-0.10 Gyr -1.445 -0.601 0.009
0.10-0.33 Gyr -2.280 -0.853 -0.225
0.33-1.07 Gyr -2.962 -0.943 -0.140
1.07-3.48 Gyr -2.555 -0.678 -0.065
3.48-11.35 Gyr -1.234 -0.176 0.040
11.35-12.61 Gyr -0.594 0.174 0.968

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.617 10.700 10.770
{\rm log}_{10}({\rm SFR}) -0.632 -0.346 -0.086
{\rm log}_{10}({\rm sSFR}) -11.344 -11.044 -10.760
{\rm stellar\ age} 5.434 6.868 7.972

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.305 -0.083 0.085
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.371 -0.235 0.266

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.251 0.369 0.501
\delta -0.218 0.081 0.294
\tau_1/\tau_2 0.510 0.843 1.222
Q_{PAH} 2.214 4.058 5.598
U_{min} 2.216 7.366 14.656
{\rm log}_{10}(\gamma_e)\, -2.904 -1.702 -0.687

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.322 -0.940 -0.693
{\rm log}_{10}(\tau_{AGN})\, 1.444 1.763 1.975

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.239 0.009 0.252
0.03-0.10 Gyr -2.186 -0.817 -0.300
0.10-0.33 Gyr -2.039 -0.779 -0.208
0.33-1.07 Gyr -1.188 -0.247 0.313
1.07-3.48 Gyr 0.319 0.825 1.104
3.48-11.35 Gyr 0.498 0.818 0.983
11.35-12.61 Gyr 0.045 0.800 1.284