2020ehn

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Information

Transient

Name: AT2020ehn
Right ascension: 17h32m14.34s
Declination: 34d50m46.56s
Discovery Date: March 3, 2020, 3:02 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.034

Host

Name: 2020ehn
Right ascension: 17h32m14.20s
Declination: 34d50m46.11s
Redshift: 0.066890
Photometric Redshift: 0.049
 

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 2.4
Cutout download processed 15.53
Global aperture construction processed 0.66
Local aperture photometry processed 6.34
Global aperture photometry processed 6.5
Validate local photometry processed 0.02
Validate global photometry processed 17.59
Host information processed 0.09
Global host SED inference processed 505.24
Local host SED inference processed 518.48
Transient information processed 0.0
Transient MWEBV processed 0.05
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) = 17h32m14.34s, 34d50m46.56s
semi major axis, semi minor axis (arcsec) = 1.56, 1.56
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 38.6 2.18 19.933 0.061 AB
SDSS_g 183.3 3.54 18.242 0.021 AB
DES_g 194.28 0.89 18.179 0.005 AB
PanSTARRS_g 186.3 0.49 18.224 0.003 AB
SDSS_r 394.38 5.19 17.410 0.014 AB
PanSTARRS_r 362.74 0.63 17.501 0.002 AB
SDSS_i 584.07 6.38 16.984 0.012 AB
PanSTARRS_i 534.71 0.42 17.080 0.001 AB
PanSTARRS_z 635.04 1.17 16.893 0.002 AB
SDSS_z 773.74 8.33 16.679 0.012 AB
DES_z 802.69 4.56 16.639 0.006 AB
PanSTARRS_y 771.87 2.71 16.681 0.004 AB

Aperture details

RA, DEC (J2000) = 17h32m14.19s, 34d50m46.25s
semi major axis, semi minor axis (arcsec) = 9.81, 8.18
angle (degrees, anti-clockwise from east) = -139.37

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 209.12 9.59 18.099 0.050 AB
SDSS_g 1037.95 8.71 16.360 0.009 AB
DES_g 1089.21 2.15 16.307 0.002 AB
PanSTARRS_g 1156.95 2.3 16.242 0.002 AB
SDSS_r 2225.52 12.78 15.531 0.006 AB
PanSTARRS_r 2293.95 2.96 15.499 0.001 AB
SDSS_i 3303.42 16.32 15.103 0.005 AB
PanSTARRS_i 3371.19 1.99 15.081 0.001 AB
PanSTARRS_z 4091.7 6.25 14.870 0.002 AB
SDSS_z 4208.37 29.32 14.840 0.008 AB
DES_z 4193.21 10.67 14.844 0.003 AB
PanSTARRS_y 5010.45 15.18 14.650 0.003 AB
2MASS_J 6275.42 184.14 13.511 0.032 Vega
2MASS_H 8025.05 285.85 12.771 0.039 Vega
2MASS_K 7343.32 339.76 12.397 0.050 Vega
WISE_W1 3067.03 27.97 12.484 0.010 Vega
WISE_W2 1904.74 28.97 12.361 0.017 Vega
WISE_W3 2146.34 73.26 10.397 0.037 Vega
WISE_W4 2210.07 485.75 8.919 0.239 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})\, 9.953 10.126 10.256
{\rm log}_{10}({\rm SFR}) -1.323 -0.422 0.332
{\rm log}_{10}({\rm sSFR}) -11.479 -10.592 -9.707
{\rm stellar\ age} 3.349 6.405 8.055

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.227 -0.656 -0.309
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.385 0.109 0.373

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.368 0.840 1.304
\delta -0.692 -0.308 0.080
\tau_1/\tau_2 0.661 1.002 1.365
Q_{PAH} 0.734 2.164 4.243
U_{min} 2.902 8.001 15.153
{\rm log}_{10}(\gamma_e)\, -3.279 -1.830 -0.791

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.001 -1.677 -0.405
{\rm log}_{10}(\tau_{AGN})\, 0.992 1.490 1.979

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.580 -0.593 -0.051
0.03-0.10 Gyr -1.666 -0.457 0.428
0.10-0.33 Gyr -1.321 -0.262 0.593
0.33-1.08 Gyr -0.980 0.036 0.565
1.08-3.53 Gyr -0.805 0.176 0.499
3.53-11.58 Gyr -0.724 0.137 0.401
11.58-12.87 Gyr -0.830 0.162 0.769

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.931 10.998 11.116
{\rm log}_{10}({\rm SFR}) -3.523 -1.239 0.145
{\rm log}_{10}({\rm sSFR}) -14.519 -12.326 -10.796
{\rm stellar\ age} 7.469 8.405 12.153

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.852 -0.630 -0.499
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.504 -0.311 0.293

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.172 0.300 0.445
\delta -0.868 -0.564 -0.217
\tau_1/\tau_2 0.423 0.862 1.298
Q_{PAH} 0.656 1.617 3.499
U_{min} 2.148 7.154 14.778
{\rm log}_{10}(\gamma_e)\, -3.477 -2.662 -1.503

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.893 -2.852 -2.024
{\rm log}_{10}(\tau_{AGN})\, 0.977 1.335 1.754

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.737 -1.010 0.164
0.03-0.10 Gyr -5.306 -1.789 0.121
0.10-0.33 Gyr -5.935 -1.938 0.159
0.33-1.08 Gyr -4.632 -1.483 0.108
1.08-3.53 Gyr -2.979 -0.334 0.755
3.53-11.58 Gyr -0.727 1.106 1.277
11.58-12.87 Gyr 0.460 1.480 2.254