2026etj results

Information

Transient
Name:AT2026etj
Right ascension: 12h27m44.83s
Declination:17d18m00.26s
Discovery Date:Jan. 13, 2026, 12:42 p.m.
Classification:None
Redshift:None
MW E(B-V):0.024
Host
Name:J122744.89+171804.19
Right ascension: 12h27m44.89s
Declination:17d18m04.19s
Redshift:None
Photometric Redshift:0.093
 

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 18.22
Transient MWEBV processed 0.11
Host match processed 6.08
Host information processed 0.12
Host MWEBV processed 0.08
Global aperture construction processed 0.63
Global aperture photometry processed 6.5
Validate global photometry processed 18.64
Global host SED inference processed 421.94
Local aperture photometry processed 6.39
Validate local photometry processed 0.03
Local host SED inference processed 412.23
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):12h27m44.83s, 17d18m00.26s
semi major axis, semi minor axis (arcsec):1.16, 1.16
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 8.65 0.18 21.557 0.022 AB
DES_r 16.92 0.64 20.829 0.041 AB
PanSTARRS_i 22.84 0.52 20.503 0.025 AB
PanSTARRS_z 26.9 0.75 20.326 0.030 AB
DES_z 34.2 1.03 20.065 0.033 AB
PanSTARRS_y 32.24 1.57 20.129 0.053 AB

Aperture details

RA, DEC (J2000):12h27m44.89s, 17d18m04.18s
semi major axis, semi minor axis (arcsec):12.72, 3.08
angle (degrees, anti-clockwise from east):-164.76
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.93 2.24 22.168 0.493 AB
GALEX_NUV 6.81 0.56 21.818 0.090 AB
SDSS_u 45.32 5.33 19.759 0.128 AB
SDSS_g 105.59 3.19 18.841 0.033 AB
DES_g 75.72 0.69 19.202 0.010 AB
PanSTARRS_g 98.42 1.49 18.917 0.016 AB
SDSS_r 190.42 4.65 18.201 0.027 AB
PanSTARRS_r 191.4 1.88 18.195 0.011 AB
DES_r 151.69 2.09 18.448 0.015 AB
SDSS_i 294.18 6.83 17.728 0.025 AB
PanSTARRS_i 281.22 2.71 17.777 0.010 AB
PanSTARRS_z 325.67 3.95 17.618 0.013 AB
SDSS_z 382.34 20.49 17.444 0.058 AB
DES_z 287.11 3.54 17.755 0.013 AB
PanSTARRS_y 423.16 8.28 17.334 0.021 AB
2MASS_J 213.57 143.77 17.181 0.731 Vega
2MASS_H 939.28 231.52 15.100 0.268 Vega
2MASS_K 915.5 214.05 14.658 0.254 Vega
WISE_W1 333.72 15.84 14.893 0.052 Vega
WISE_W2 234.25 21.99 14.637 0.102 Vega
WISE_W3 703.83 87.85 11.607 0.136 Vega
WISE_W4 306.2 517.87 11.065 1.836 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.961 9.097 9.213
{\rm log}_{10}({\rm SFR}) -1.848 -1.105 -0.386
{\rm log}_{10}({\rm sSFR}) -10.880 -10.167 -9.483
{\rm stellar\ age} 2.593 6.053 7.342

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.405 -0.640 -0.086
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.567 -0.795 0.031

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.548 1.051 1.642
\delta -0.206 0.071 0.275
\tau_1/\tau_2 0.664 1.027 1.370
Q_{PAH} 0.906 2.620 4.893
U_{min} 2.974 8.310 15.751
{\rm log}_{10}(\gamma_e)\, -2.925 -1.879 -0.860

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.691 -0.531 -0.007
{\rm log}_{10}(\tau_{AGN})\, 1.082 1.486 1.913

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.308 -1.339 -0.715
0.03-0.10 Gyr -2.042 -1.112 -0.296
0.10-0.33 Gyr -1.761 -0.988 -0.345
0.33-1.06 Gyr -1.555 -0.849 -0.352
1.06-3.46 Gyr -1.790 -0.836 -0.584
3.46-11.29 Gyr -2.031 -0.862 -0.654
11.29-12.54 Gyr -1.989 -0.892 -0.368

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.140 10.198 10.285
{\rm log}_{10}({\rm SFR}) -0.210 0.111 0.449
{\rm log}_{10}({\rm sSFR}) -10.461 -10.095 -9.728
{\rm stellar\ age} 7.382 8.594 11.413

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.336 -0.154 -0.011
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.363 -0.212 -0.124

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.349 0.481 0.661
\delta -0.776 -0.524 -0.265
\tau_1/\tau_2 0.552 0.970 1.361
Q_{PAH} 0.279 0.808 1.916
U_{min} 2.752 7.639 15.063
{\rm log}_{10}(\gamma_e)\, -3.334 -2.528 -1.561

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.861 -2.352 -1.826
{\rm log}_{10}(\tau_{AGN})\, 0.900 1.218 1.664

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.176 0.387 0.596
0.03-0.10 Gyr -1.605 -0.156 0.395
0.10-0.33 Gyr -3.469 -1.232 -0.536
0.33-1.06 Gyr -4.349 -1.553 -0.774
1.06-3.46 Gyr -2.572 -1.016 -0.280
3.46-11.29 Gyr -0.501 0.312 0.458
11.29-12.54 Gyr 0.095 0.834 1.383