2026aark results

Information

Transient
Name:SN2026aark
Right ascension: 1h58m43.66s
Declination:1d27m38.70s
Discovery Date:Sept. 4, 2026, 9:05 a.m.
Classification:SN Ia-91T-like
Redshift:0.060000
MW E(B-V):0.021
Host
Name:J015843.57+012739.06
Object ID:9906621991229793
Catalog Name:decals
Catalog Release:dr9
Right ascension: 1h58m43.57s
Declination:1d27m39.06s
Redshift:None
Photometric Redshift:0.163
 
 

Processing Status: blocked

Task Name Status Time (s)
Cutout download processed 19.08
Transient MWEBV processed 0.19
Host match processed 7.92
Host information processed 0.06
Host MWEBV processed 0.14
Host spectrum download processed 0.06
Global aperture construction processed 5.05
Global aperture photometry processed 7.69
Validate global photometry processed 19.67
Global host SED inference processed 415.52
Local aperture photometry processed 7.49
Validate local photometry processed 0.03
Local host SED inference processed 369.62
 

Imaging data


 

Spectral Energy Distribution



 

Host Galaxy Spectrum

 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.951 8.136 8.293
{\rm log}_{10}({\rm SFR}) -2.354 -1.700 -1.197
{\rm log}_{10}({\rm sSFR}) -10.511 -9.867 -9.247
{\rm stellar\ age} 3.617 6.065 7.432

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.623 -0.953 -0.294
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.628 -0.766 0.146

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.142 0.468 0.925
\delta -0.502 -0.042 0.267
\tau_1/\tau_2 0.673 0.987 1.283
Q_{PAH} 0.886 2.298 4.309
U_{min} 3.006 8.250 15.713
{\rm log}_{10}(\gamma_e)\, -2.879 -1.817 -0.672

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.163 -2.300 -0.248
{\rm log}_{10}(\tau_{AGN})\, 0.980 1.394 1.867

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.615 -1.755 -1.257
0.03-0.10 Gyr -2.441 -1.756 -1.193
0.10-0.33 Gyr -2.304 -1.738 -1.242
0.33-1.08 Gyr -2.307 -1.808 -1.443
1.08-3.55 Gyr -2.258 -1.748 -1.481
3.55-11.66 Gyr -2.460 -1.841 -1.599
11.66-12.96 Gyr -2.752 -1.870 -1.377

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.330 8.523 8.649
{\rm log}_{10}({\rm SFR}) -1.683 -1.188 -0.620
{\rm log}_{10}({\rm sSFR}) -10.262 -9.720 -9.066
{\rm stellar\ age} 3.075 6.338 7.597

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.723 -1.190 -0.476
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.510 -0.436 0.264

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.165 0.445 0.942
\delta -0.413 -0.001 0.283
\tau_1/\tau_2 0.672 0.955 1.275
Q_{PAH} 0.969 2.440 4.468
U_{min} 3.087 8.418 15.922
{\rm log}_{10}(\gamma_e)\, -2.881 -1.790 -0.679

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.239 -2.521 -0.639
{\rm log}_{10}(\tau_{AGN})\, 0.965 1.468 1.913

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.939 -1.274 -0.842
0.03-0.10 Gyr -1.781 -1.198 -0.550
0.10-0.33 Gyr -2.017 -1.433 -0.933
0.33-1.08 Gyr -2.157 -1.570 -1.167
1.08-3.55 Gyr -2.081 -1.461 -1.184
3.55-11.66 Gyr -2.266 -1.438 -1.215
11.66-12.96 Gyr -2.572 -1.469 -0.985
 

Aperture Photometry


Aperture details

RA, DEC (J2000):1h58m43.66s, 1d27m38.70s
semi major axis, semi minor axis (arcsec):1.73, 1.73
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 4.72 1.7 22.216 0.391 AB
SDSS_g 5.4 0.75 22.069 0.151 AB
DES_g 5.88 0.1 21.976 0.019 AB
PanSTARRS_g 4.54 0.4 22.258 0.097 AB
SDSS_r 8.06 1.03 21.635 0.139 AB
PanSTARRS_r 9.28 0.66 21.481 0.078 AB
DES_r 9.2 0.17 21.491 0.021 AB
SDSS_i 11.85 1.55 21.215 0.142 AB
PanSTARRS_i 10.35 0.38 21.363 0.040 AB
DES_i 11.51 0.36 21.247 0.034 AB
PanSTARRS_z 8.71 1.38 21.550 0.173 AB
SDSS_z 17.17 4.45 20.813 0.282 AB
DES_z 12.54 0.51 21.154 0.044 AB
PanSTARRS_y 14.82 2.77 20.973 0.203 AB

Aperture details

RA, DEC (J2000):1h58m43.55s, 1d27m38.83s
semi major axis, semi minor axis (arcsec):6.65, 2.69
angle (degrees, anti-clockwise from east):263.67
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 15.42 4.18 20.930 0.294 AB
SDSS_g 13.42 1.54 21.081 0.125 AB
DES_g 15.73 0.21 20.908 0.014 AB
PanSTARRS_g 12.67 0.99 21.143 0.085 AB
SDSS_r 19.45 2.17 20.678 0.121 AB
PanSTARRS_r 28.0 1.61 20.282 0.062 AB
DES_r 23.69 0.35 20.463 0.016 AB
SDSS_i 29.06 3.49 20.242 0.130 AB
PanSTARRS_i 27.71 0.91 20.293 0.035 AB
DES_i 28.18 0.71 20.275 0.027 AB
PanSTARRS_z 30.1 3.31 20.204 0.119 AB
SDSS_z 40.18 10.81 19.890 0.292 AB
DES_z 30.62 1.0 20.185 0.036 AB
PanSTARRS_y 38.13 6.61 19.947 0.188 AB
2MASS_J -7.24 116.92 Vega
2MASS_H -113.79 185.89 Vega
2MASS_K 105.19 182.58 17.007 1.884 Vega
WISE_W1 17.44 6.82 18.097 0.425 Vega
WISE_W2 16.36 11.34 17.526 0.753 Vega
WISE_W3 30.95 53.65 14.999 1.882 Vega
WISE_W4 483.02 347.59 10.570 0.781 Vega