2026hhn results

Information

Transient
Name:AT2026hhn
Right ascension: 5h21m29.84s
Declination:-26d46m17.11s
Discovery Date:March 21, 2026, 7:01 p.m.
Classification:None
Redshift:None
MW E(B-V):0.022
Host
Name:J052130.06-264619.19
Right ascension: 5h21m30.06s
Declination:-26d46m19.19s
Redshift:None
Photometric Redshift:0.059
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
PanSTARRS_g
PanSTARRS_r
PanSTARRS_i
PanSTARRS_z
PanSTARRS_y
GALEX_NUV
GALEX_FUV
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_g
DES_r
DES_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 5.25
Transient MWEBV processed 0.14
Host match processed 7.4
Host information processed 0.08
Host MWEBV processed 0.11
Global aperture construction processed 0.61
Global aperture photometry processed 3.41
Validate global photometry processed 9.7
Global host SED inference processed 420.27
Local aperture photometry processed 3.53
Validate local photometry processed 0.02
Local host SED inference processed 526.75
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):5h21m29.84s, -26d46m17.11s
semi major axis, semi minor axis (arcsec):1.75, 1.75
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 67.88 0.48 19.321 0.008 AB
PanSTARRS_r 103.32 0.57 18.865 0.006 AB
PanSTARRS_i 130.38 0.73 18.612 0.006 AB
PanSTARRS_z 154.85 1.67 18.425 0.012 AB
PanSTARRS_y 177.04 3.16 18.280 0.019 AB

Aperture details

RA, DEC (J2000):5h21m30.04s, -26d46m19.00s
semi major axis, semi minor axis (arcsec):9.63, 7.69
angle (degrees, anti-clockwise from east):-34.66
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 642.55 2.27 16.880 0.004 AB
PanSTARRS_r 1022.02 2.68 16.376 0.003 AB
PanSTARRS_i 1291.65 3.5 16.122 0.003 AB
PanSTARRS_z 1491.48 8.15 15.966 0.006 AB
PanSTARRS_y 1779.55 15.46 15.774 0.009 AB
2MASS_J 1949.04 225.21 14.781 0.125 Vega
2MASS_H 2240.52 335.68 14.157 0.163 Vega
2MASS_K 3063.85 415.9 13.347 0.147 Vega
WISE_W1 1002.57 21.1 13.698 0.023 Vega
WISE_W2 579.4 25.36 13.654 0.048 Vega
WISE_W3 2358.68 93.03 10.294 0.043 Vega
WISE_W4 2911.65 650.84 8.620 0.243 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.044 9.224 9.343
{\rm log}_{10}({\rm SFR}) -2.221 -1.168 -0.481
{\rm log}_{10}({\rm sSFR}) -11.404 -10.399 -9.702
{\rm stellar\ age} 2.666 5.962 7.517

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.201 -0.640 -0.268
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.516 -0.710 0.053

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.110 0.426 0.865
\delta -0.654 -0.159 0.215
\tau_1/\tau_2 0.656 1.024 1.365
Q_{PAH} 0.908 2.734 5.436
U_{min} 3.342 8.787 16.279
{\rm log}_{10}(\gamma_e)\, -3.161 -1.882 -0.615

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.419 -0.770 -0.257
{\rm log}_{10}(\tau_{AGN})\, 1.058 1.515 2.007

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.996 -1.647 -1.138
0.03-0.10 Gyr -2.400 -1.099 -0.352
0.10-0.33 Gyr -1.473 -0.628 0.013
0.33-1.08 Gyr -1.374 -0.631 -0.192
1.08-3.55 Gyr -1.550 -0.694 -0.434
3.55-11.67 Gyr -1.917 -0.791 -0.533
11.67-12.97 Gyr -2.014 -0.818 -0.231

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.070 10.186 10.285
{\rm log}_{10}({\rm SFR}) -1.290 -0.307 0.264
{\rm log}_{10}({\rm sSFR}) -11.490 -10.533 -9.876
{\rm stellar\ age} 4.320 6.181 7.464

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.829 -0.552 -0.372
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.994 -0.064 0.320

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.130 0.249 0.412
\delta -0.836 -0.502 0.007
\tau_1/\tau_2 0.655 0.993 1.345
Q_{PAH} 1.178 2.620 4.697
U_{min} 2.491 7.483 14.737
{\rm log}_{10}(\gamma_e)\, -2.472 -1.454 -0.563

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.337 -3.326 -2.155
{\rm log}_{10}(\tau_{AGN})\, 1.107 1.620 1.982

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.818 -0.611 -0.226
0.03-0.10 Gyr -1.555 -0.277 0.393
0.10-0.33 Gyr -0.958 0.246 0.707
0.33-1.08 Gyr -0.289 0.284 0.601
1.08-3.55 Gyr -0.031 0.315 0.620
3.55-11.67 Gyr -0.222 0.218 0.434
11.67-12.97 Gyr -0.567 0.195 0.684