2021htu

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Information

Transient

Name: AT2021htu
Right ascension: 5h55m05.45s
Declination: -25d41m49.24s
Discovery Date: April 3, 2021, 6:01 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.029

Host

Name: 776033
Right ascension: 5h55m05.31s
Declination: -25d41m51.78s
Redshift: None
Photometric Redshift: 0.040
 

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 3.7
Cutout download processed 9.21
Global aperture construction processed 0.65
Local aperture photometry processed 6.26
Global aperture photometry processed 5.55
Validate local photometry processed 0.02
Validate global photometry processed 14.41
Host information processed 0.15
Global host SED inference processed 414.95
Local host SED inference processed 477.9
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) = 5h55m05.45s, -25d41m49.24s
semi major axis, semi minor axis (arcsec) = 2.55, 2.55
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 145.79 0.37 18.491 0.003 AB
PanSTARRS_g 125.92 0.85 18.650 0.007 AB
PanSTARRS_r 237.39 1.0 17.961 0.005 AB
DES_r 267.37 0.59 17.832 0.002 AB
PanSTARRS_i 306.8 0.89 17.683 0.003 AB
PanSTARRS_z 374.12 2.57 17.467 0.007 AB
DES_z 416.85 2.14 17.350 0.006 AB
PanSTARRS_y 408.49 5.85 17.372 0.016 AB

Aperture details

RA, DEC (J2000) = 5h55m05.31s, -25d41m51.59s
semi major axis, semi minor axis (arcsec) = 15.09, 6.73
angle (degrees, anti-clockwise from east) = -162.19

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 69.46 8.36 19.296 0.131 AB
GALEX_NUV 105.54 6.55 18.841 0.067 AB
DES_g 755.54 0.92 16.704 0.001 AB
PanSTARRS_g 625.87 3.22 16.909 0.006 AB
PanSTARRS_r 1119.38 3.79 16.278 0.004 AB
DES_r 1308.3 1.39 16.108 0.001 AB
PanSTARRS_i 1500.96 3.4 15.959 0.002 AB
PanSTARRS_z 1745.44 10.01 15.795 0.006 AB
DES_z 1970.44 4.93 15.664 0.003 AB
PanSTARRS_y 1950.58 22.94 15.675 0.013 AB
2MASS_J 2386.7 258.32 14.561 0.118 Vega
2MASS_H 2989.51 401.33 13.843 0.146 Vega
2MASS_K 2203.91 497.58 13.704 0.245 Vega
WISE_W1 1253.46 26.35 13.456 0.023 Vega
WISE_W2 738.09 31.1 13.391 0.046 Vega
WISE_W3 2238.75 100.95 10.351 0.049 Vega
WISE_W4 1178.76 539.04 9.601 0.496 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})\, 9.305 9.426 9.546
{\rm log}_{10}({\rm SFR}) -1.186 -0.775 -0.365
{\rm log}_{10}({\rm sSFR}) -10.653 -10.237 -9.773
{\rm stellar\ age} 6.268 7.689 10.060

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.501 -0.916 -0.585
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.914 -1.731 -1.066

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.312 0.615 0.904
\delta -0.691 -0.312 0.059
\tau_1/\tau_2 0.666 1.016 1.387
Q_{PAH} 0.629 2.777 5.210
U_{min} 2.839 7.898 14.771
{\rm log}_{10}(\gamma_e)\, -3.327 -2.109 -1.018

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.837 -2.023 -0.918
{\rm log}_{10}(\tau_{AGN})\, 0.892 1.374 1.873

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.017 -0.682 -0.418
0.03-0.10 Gyr -1.570 -0.848 -0.324
0.10-0.33 Gyr -1.844 -0.982 -0.458
0.33-1.09 Gyr -1.907 -0.951 -0.544
1.09-3.60 Gyr -1.834 -0.777 -0.450
3.60-11.90 Gyr -0.875 -0.496 -0.316
11.90-13.23 Gyr -0.884 -0.331 0.390

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.087 10.150 10.236
{\rm log}_{10}({\rm SFR}) -0.429 -0.155 0.154
{\rm log}_{10}({\rm sSFR}) -10.602 -10.321 -9.969
{\rm stellar\ age} 8.074 9.477 12.081

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.789 -0.602 -0.455
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.934 -1.811 -1.363

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.154 0.256 0.401
\delta -0.468 -0.071 0.190
\tau_1/\tau_2 0.660 1.064 1.484
Q_{PAH} 0.501 1.335 2.438
U_{min} 2.519 7.138 14.210
{\rm log}_{10}(\gamma_e)\, -3.356 -2.269 -1.631

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.421 -3.589 -2.678
{\rm log}_{10}(\tau_{AGN})\, 1.003 1.529 1.940

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.270 -0.114 0.043
0.03-0.10 Gyr -0.718 -0.188 0.232
0.10-0.33 Gyr -1.735 -0.793 -0.331
0.33-1.09 Gyr -2.420 -1.153 -0.657
1.09-3.60 Gyr -2.182 -1.032 -0.464
3.60-11.90 Gyr -0.635 0.206 0.355
11.90-13.23 Gyr 0.288 0.861 1.321