2018ahn

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Information

Transient

Name: AT2018ahn
Right ascension: 8h24m09.40s
Declination: 57d17m13.27s
Discovery Date: March 17, 2018, 8:15 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.070

Host

Name: 23593
Right ascension: 8h24m16.68s
Declination: 57d17m18.07s
Redshift: 0.026246
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 4.08
Cutout download processed 22.76
Global aperture construction processed 0.66
Local aperture photometry processed 6.33
Global aperture photometry processed 6.71
Validate local photometry processed 0.03
Validate global photometry processed 14.42
Host information processed 0.15
Global host SED inference processed 732.61
Local host SED inference processed 446.89
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) = 8h24m09.40s, 57d17m13.27s
semi major axis, semi minor axis (arcsec) = 3.79, 3.79
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 -5.0 3.14 AB
SDSS_g 1.67 1.28 23.341 0.828 AB
DES_g 3.59 0.21 22.513 0.065 AB
PanSTARRS_g 3.25 0.74 22.622 0.248 AB
SDSS_r 0.8 2.01 24.141 2.724 AB
PanSTARRS_r 3.58 1.05 22.516 0.319 AB
SDSS_i 7.13 3.37 21.768 0.513 AB
PanSTARRS_i 8.93 0.98 21.523 0.119 AB
PanSTARRS_z 8.19 2.57 21.617 0.340 AB
SDSS_z -25.05 12.1 AB
DES_z 1.79 1.3 23.266 0.787 AB
PanSTARRS_y 9.31 7.95 21.478 0.927 AB
2MASS_J 5.11 75.57 21.233 16.044 Vega
2MASS_H 135.74 112.71 17.201 0.901 Vega
2MASS_K 237.36 144.05 16.124 0.659 Vega

Aperture details

RA, DEC (J2000) = 8h24m16.75s, 57d17m18.46s
semi major axis, semi minor axis (arcsec) = 16.87, 12.91
angle (degrees, anti-clockwise from east) = -125.52

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 16.78 4.36 20.838 0.282 AB
GALEX_NUV 21.74 5.03 20.557 0.251 AB
SDSS_u 276.46 14.03 17.796 0.055 AB
SDSS_g 1570.67 11.12 15.910 0.008 AB
DES_g 1666.66 3.49 15.845 0.002 AB
PanSTARRS_g 1685.99 3.02 15.833 0.002 AB
SDSS_r 3697.05 17.31 14.980 0.005 AB
PanSTARRS_r 3665.94 4.39 14.990 0.001 AB
SDSS_i 5600.67 23.31 14.529 0.005 AB
PanSTARRS_i 5496.31 4.28 14.550 0.001 AB
PanSTARRS_z 7009.25 10.5 14.286 0.002 AB
SDSS_z 7269.27 52.17 14.246 0.008 AB
DES_z 6788.85 13.5 14.321 0.002 AB
PanSTARRS_y 8753.36 30.86 14.045 0.004 AB
2MASS_J 10075.17 300.71 12.997 0.032 Vega
2MASS_H 13586.12 446.35 12.200 0.036 Vega
2MASS_K 11107.23 570.45 11.948 0.056 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})\, 6.949 7.426 7.718
{\rm log}_{10}({\rm SFR}) -2.183 -1.666 -1.238
{\rm log}_{10}({\rm sSFR}) -9.756 -9.118 -8.227
{\rm stellar\ age} 0.896 5.909 7.918

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.469 -0.888 -0.299
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.561 -0.741 -0.125

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.128 1.663 2.167
\delta -0.063 0.141 0.295
\tau_1/\tau_2 0.526 0.910 1.358
Q_{PAH} 0.578 1.994 4.638
U_{min} 2.898 8.408 15.589
{\rm log}_{10}(\gamma_e)\, -2.991 -1.739 -0.637

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.755 -1.460 -0.268
{\rm log}_{10}(\tau_{AGN})\, 1.013 1.562 1.975

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.183 -1.508 -1.040
0.03-0.10 Gyr -2.967 -1.981 -1.359
0.10-0.33 Gyr -4.018 -2.537 -1.881
0.33-1.10 Gyr -4.830 -2.766 -2.216
1.10-3.64 Gyr -5.028 -2.745 -2.261
3.64-12.06 Gyr -4.952 -2.710 -2.221
12.06-13.41 Gyr -4.896 -2.733 -1.944

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.548 10.631 10.754
{\rm log}_{10}({\rm SFR}) -1.757 -1.066 -0.554
{\rm log}_{10}({\rm sSFR}) -12.419 -11.712 -11.156
{\rm stellar\ age} 7.843 10.885 12.716

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.633 -1.130 -0.750
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.665 -0.721 0.182

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.635 0.980 1.232
\delta -0.293 0.191 0.320
\tau_1/\tau_2 0.235 0.680 1.271
Q_{PAH} 0.309 1.319 4.675
U_{min} 3.616 9.942 18.287
{\rm log}_{10}(\gamma_e)\, -3.056 -1.513 -0.825

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.348 -2.813 -1.225
{\rm log}_{10}(\tau_{AGN})\, 0.792 1.147 1.831

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.077 -0.941 -0.331
0.03-0.10 Gyr -4.075 -1.580 -0.657
0.10-0.33 Gyr -5.231 -2.377 -0.932
0.33-1.10 Gyr -5.023 -2.091 -0.491
1.10-3.64 Gyr -3.801 -1.523 0.281
3.64-12.06 Gyr -2.024 0.368 0.865
12.06-13.41 Gyr 0.203 1.582 1.866