1991bt

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Information

Transient

Name: AT1991bt
Right ascension: 0h46m00.31s
Declination: -12d42m08.30s
Discovery Date: Sept. 6, 1991, 3:45 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.021

Host

Name:
Right ascension: 0h46m00.31s
Declination: -12d42m00.95s
Redshift: None
Photometric Redshift: 0.058
 

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 5.65
Cutout download processed 6.53
Global aperture construction processed 0.62
Local aperture photometry processed 5.14
Global aperture photometry processed 4.95
Validate local photometry processed 0.02
Validate global photometry processed 13.67
Host information processed 0.11
Global host SED inference processed 392.4
Local host SED inference processed 431.06
Transient information processed 0.0
Transient MWEBV processed 0.04
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) = 0h46m00.31s, -12d42m08.30s
semi major axis, semi minor axis (arcsec) = 1.79, 1.79
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 15.06 0.28 20.956 0.020 AB
PanSTARRS_g 13.35 0.39 21.086 0.032 AB
PanSTARRS_r 21.23 0.68 20.583 0.035 AB
DES_r 24.15 0.53 20.443 0.024 AB
PanSTARRS_i 25.33 0.64 20.391 0.027 AB
PanSTARRS_z 29.19 1.15 20.237 0.043 AB
DES_z 35.51 1.49 20.024 0.046 AB
PanSTARRS_y 30.43 3.15 20.192 0.112 AB

Aperture details

RA, DEC (J2000) = 0h46m00.29s, -12d42m00.72s
semi major axis, semi minor axis (arcsec) = 13.42, 6.86
angle (degrees, anti-clockwise from east) = -7.02

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 43.65 4.72 19.800 0.117 AB
GALEX_NUV 71.03 3.62 19.271 0.055 AB
DES_g 611.96 1.72 16.933 0.003 AB
PanSTARRS_g 608.67 2.1 16.939 0.004 AB
PanSTARRS_r 995.22 3.66 16.405 0.004 AB
DES_r 1095.07 3.39 16.301 0.003 AB
PanSTARRS_i 1339.92 3.43 16.082 0.003 AB
PanSTARRS_z 1575.33 6.14 15.907 0.004 AB
DES_z 1667.88 9.95 15.845 0.006 AB
PanSTARRS_y 1861.55 16.59 15.725 0.010 AB
2MASS_J 2396.72 229.33 14.556 0.104 Vega
2MASS_H 2448.95 392.13 14.060 0.174 Vega
2MASS_K 1950.73 412.48 13.837 0.230 Vega
WISE_W1 1136.53 28.1 13.562 0.027 Vega
WISE_W2 650.7 35.8 13.528 0.060 Vega
WISE_W3 2154.65 116.96 10.393 0.059 Vega
WISE_W4 2804.25 649.43 8.660 0.251 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})\, 8.200 8.425 8.569
{\rm log}_{10}({\rm SFR}) -1.880 -1.306 -0.739
{\rm log}_{10}({\rm sSFR}) -10.342 -9.721 -9.020
{\rm stellar\ age} 2.749 5.509 7.028

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.344 -0.551 -0.100
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.762 -1.114 0.175

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.193 0.523 0.869
\delta -0.643 -0.276 0.067
\tau_1/\tau_2 0.693 1.045 1.397
Q_{PAH} 1.135 3.163 5.698
U_{min} 3.005 8.133 15.113
{\rm log}_{10}(\gamma_e)\, -2.611 -1.475 -0.500

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.377 -0.414 0.118
{\rm log}_{10}(\tau_{AGN})\, 1.095 1.633 1.945

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.901 -1.435 -0.988
0.03-0.10 Gyr -2.004 -1.304 -0.641
0.10-0.33 Gyr -1.913 -1.294 -0.777
0.33-1.08 Gyr -1.913 -1.327 -0.947
1.08-3.55 Gyr -2.098 -1.462 -1.211
3.55-11.69 Gyr -2.369 -1.619 -1.334
11.69-12.99 Gyr -2.589 -1.677 -1.141

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.283 10.329 10.392
{\rm log}_{10}({\rm SFR}) -0.156 0.089 0.370
{\rm log}_{10}({\rm sSFR}) -10.493 -10.243 -9.946
{\rm stellar\ age} 7.032 7.712 9.397

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.692 -0.469 -0.300
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.474 0.120 0.382

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.135 0.220 0.355
\delta -0.636 -0.260 0.063
\tau_1/\tau_2 0.717 1.083 1.445
Q_{PAH} 0.872 2.306 4.455
U_{min} 2.559 7.704 14.613
{\rm log}_{10}(\gamma_e)\, -2.826 -1.799 -1.014

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.407 -3.490 -2.443
{\rm log}_{10}(\tau_{AGN})\, 1.043 1.564 1.937

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.771 -0.294 0.008
0.03-0.10 Gyr -0.141 0.173 0.506
0.10-0.33 Gyr -0.147 0.144 0.390
0.33-1.08 Gyr -0.429 -0.062 0.151
1.08-3.55 Gyr -0.402 0.056 0.314
3.55-11.69 Gyr 0.270 0.481 0.575
11.69-12.99 Gyr 0.185 0.634 1.193