2026hlk results

Information

Transient
Name:AT2026hlk
Right ascension: 20h59m48.21s
Declination:-1d52m23.75s
Discovery Date:March 27, 2026, 12:33 p.m.
Classification:None
Redshift:None
MW E(B-V):0.065
Host
Name:UGC11658
Right ascension: 20h59m48.30s
Declination:-1d52m22.58s
Redshift:0.018759
Photometric Redshift:None
 

Cutout Download Report

Downloaded Unavailable
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_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 21.1
Transient MWEBV processed 0.1
Host match processed 5.44
Host information processed 0.13
Host MWEBV processed 0.16
Global aperture construction processed 0.68
Global aperture photometry processed 5.88
Validate global photometry processed 18.68
Global host SED inference processed 712.51
Local aperture photometry processed 5.59
Validate local photometry processed 0.03
Local host SED inference processed 522.33
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):20h59m48.21s, -1d52m23.75s
semi major axis, semi minor axis (arcsec):5.25, 5.25
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 77.22 7.72 19.181 0.109 AB
SDSS_u 367.1 6.52 17.488 0.019 AB
SDSS_g 939.2 8.14 16.468 0.009 AB
DES_g 1009.12 1.68 16.390 0.002 AB
PanSTARRS_g 979.9 1.49 16.422 0.002 AB
SDSS_r 1535.77 10.58 15.934 0.007 AB
PanSTARRS_r 1631.66 1.73 15.868 0.001 AB
DES_r 1683.48 2.65 15.834 0.002 AB
SDSS_i 1952.32 12.21 15.674 0.007 AB
PanSTARRS_i 1980.48 1.79 15.658 0.001 AB
PanSTARRS_z 2353.29 4.0 15.471 0.002 AB
SDSS_z 2474.74 20.97 15.416 0.009 AB
DES_z 2594.43 6.55 15.365 0.003 AB
PanSTARRS_y 2725.47 11.05 15.311 0.004 AB
2MASS_J 3267.03 121.63 14.220 0.040 Vega
2MASS_H 4059.17 208.2 13.511 0.056 Vega
2MASS_K 3201.1 222.68 13.299 0.076 Vega

Aperture details

RA, DEC (J2000):20h59m48.26s, -1d52m22.28s
semi major axis, semi minor axis (arcsec):17.57, 10.79
angle (degrees, anti-clockwise from east):-125.77
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 149.11 10.93 18.466 0.080 AB
GALEX_NUV -25.73 1.68 AB
SDSS_u 726.87 13.29 16.746 0.020 AB
SDSS_g 1741.27 11.76 15.798 0.007 AB
DES_g 1854.75 2.74 15.729 0.002 AB
PanSTARRS_g 1861.23 3.68 15.725 0.002 AB
SDSS_r 2962.3 16.06 15.221 0.006 AB
PanSTARRS_r 3183.57 4.2 15.143 0.001 AB
DES_r 3239.2 4.35 15.124 0.001 AB
SDSS_i 3937.45 19.65 14.912 0.005 AB
PanSTARRS_i 3983.78 4.38 14.899 0.001 AB
PanSTARRS_z 4607.64 10.18 14.741 0.002 AB
SDSS_z 4814.14 47.13 14.694 0.011 AB
PanSTARRS_y 5130.12 28.71 14.625 0.006 AB
2MASS_J 7210.53 322.12 13.360 0.049 Vega
2MASS_H 8402.95 553.17 12.721 0.071 Vega
2MASS_K 6431.51 593.2 12.541 0.100 Vega
WISE_W1 3349.45 47.24 12.389 0.015 Vega
WISE_W2 2021.2 92.84 12.297 0.050 Vega
WISE_W4 15565.71 1929.33 6.800 0.135 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.311 9.425 9.555
{\rm log}_{10}({\rm SFR}) -0.279 0.035 0.318
{\rm log}_{10}({\rm sSFR}) -9.728 -9.415 -9.064
{\rm stellar\ age} 5.286 7.032 8.420

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.443 -0.742 -0.403
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.024 0.265 0.417

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.251 0.543 0.876
\delta -0.571 -0.254 -0.058
\tau_1/\tau_2 0.631 0.998 1.379
Q_{PAH} 0.299 1.305 2.620
U_{min} 2.717 8.170 15.588
{\rm log}_{10}(\gamma_e)\, -3.094 -1.787 -1.019

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.235 -2.741 -1.203
{\rm log}_{10}(\tau_{AGN})\, 1.123 1.626 2.008

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.810 -0.609 -0.369
0.03-0.10 Gyr -0.183 0.166 0.457
0.10-0.33 Gyr -1.011 -0.384 0.010
0.33-1.10 Gyr -1.368 -0.722 -0.393
1.10-3.66 Gyr -1.174 -0.652 -0.335
3.66-12.16 Gyr -0.966 -0.523 -0.341
12.16-13.51 Gyr -1.144 -0.457 0.069

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.752 9.858 9.981
{\rm log}_{10}({\rm SFR}) -0.414 -0.012 0.333
{\rm log}_{10}({\rm sSFR}) -10.285 -9.889 -9.502
{\rm stellar\ age} 7.062 7.926 11.099

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.446 -0.927 -0.586
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.500 0.203 0.425

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.277 0.439 0.630
\delta -0.272 0.008 0.276
\tau_1/\tau_2 0.513 0.875 1.269
Q_{PAH} 0.491 1.537 3.021
U_{min} 2.375 6.849 14.096
{\rm log}_{10}(\gamma_e)\, -3.645 -2.840 -1.870

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.055 -3.033 -2.231
{\rm log}_{10}(\tau_{AGN})\, 1.005 1.460 1.922

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.248 -0.690 -0.425
0.03-0.10 Gyr -0.331 0.124 0.478
0.10-0.33 Gyr -1.616 -0.359 0.028
0.33-1.10 Gyr -2.395 -0.751 -0.391
1.10-3.66 Gyr -1.879 -0.545 -0.163
3.66-12.16 Gyr -0.538 -0.062 0.120
12.16-13.51 Gyr -0.619 0.107 0.930