2026egi results

Information

Transient
Name:AT2026egi
Right ascension: 2h09m57.32s
Declination:0d52m31.59s
Discovery Date:Feb. 23, 2026, 2:44 a.m.
Classification:None
Redshift:None
MW E(B-V):0.025
Host
Name:PGC1177907
Right ascension: 2h09m57.02s
Declination:0d52m35.00s
Redshift:None
Photometric Redshift:0.019
 

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 19.12
Transient MWEBV processed 0.04
Host match processed 4.39
Host information processed 0.1
Host MWEBV processed 0.08
Global aperture construction processed 0.64
Global aperture photometry processed 5.39
Validate global photometry processed 17.9
Global host SED inference processed 397.4
Local aperture photometry processed 5.26
Validate local photometry processed 0.03
Local host SED inference processed 460.1
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):2h09m57.32s, 0d52m31.59s
semi major axis, semi minor axis (arcsec):5.11, 5.11
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 29.01 0.98 20.244 0.037 AB
SDSS_u 104.0 5.2 18.857 0.054 AB
SDSS_g 248.6 4.33 17.911 0.019 AB
DES_g 253.26 0.78 17.891 0.003 AB
PanSTARRS_g 234.86 1.28 17.973 0.006 AB
SDSS_r 329.48 5.27 17.605 0.017 AB
PanSTARRS_r 315.59 1.64 17.652 0.006 AB
DES_r 352.03 0.98 17.534 0.003 AB
SDSS_i 386.07 6.37 17.433 0.018 AB
PanSTARRS_i 361.16 1.43 17.506 0.004 AB
PanSTARRS_z 367.03 3.94 17.488 0.012 AB
SDSS_z 401.63 14.42 17.390 0.039 AB
DES_z 429.57 2.72 17.317 0.007 AB
PanSTARRS_y 411.16 8.3 17.365 0.022 AB
2MASS_J 597.62 114.99 16.064 0.209 Vega
2MASS_H 532.83 196.53 15.716 0.400 Vega
2MASS_K 344.27 213.91 15.720 0.675 Vega

Aperture details

RA, DEC (J2000):2h09m56.99s, 0d52m35.24s
semi major axis, semi minor axis (arcsec):18.83, 6.11
angle (degrees, anti-clockwise from east):-58.52
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 94.58 1.8 18.961 0.021 AB
GALEX_NUV 129.86 1.25 18.616 0.010 AB
SDSS_u 252.61 10.41 17.894 0.045 AB
SDSS_g 654.94 7.32 16.860 0.012 AB
DES_g 510.96 1.2 17.129 0.003 AB
PanSTARRS_g 663.78 2.67 16.845 0.004 AB
SDSS_r 885.59 9.23 16.532 0.011 AB
PanSTARRS_r 899.52 3.39 16.515 0.004 AB
DES_r 732.43 1.53 16.738 0.002 AB
SDSS_i 1051.43 11.68 16.346 0.012 AB
PanSTARRS_i 1048.51 2.97 16.349 0.003 AB
PanSTARRS_z 1076.44 8.32 16.320 0.008 AB
SDSS_z 1033.79 29.61 16.364 0.031 AB
DES_z 930.28 4.41 16.478 0.005 AB
PanSTARRS_y 1196.53 17.25 16.205 0.016 AB
2MASS_J 1249.66 252.45 15.263 0.219 Vega
2MASS_H 1011.02 430.27 15.021 0.462 Vega
2MASS_K 1190.79 470.18 14.373 0.429 Vega
WISE_W1 498.54 20.51 14.457 0.045 Vega
WISE_W2 340.15 25.52 14.232 0.081 Vega
WISE_W3 442.0 120.75 12.112 0.297 Vega
WISE_W4 284.08 524.23 11.146 2.004 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.389 8.570 8.678
{\rm log}_{10}({\rm SFR}) -1.646 -1.121 -0.654
{\rm log}_{10}({\rm sSFR}) -10.214 -9.676 -9.139
{\rm stellar\ age} 2.839 5.720 7.387

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.840 -1.536 -0.994
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.785 -1.193 0.193

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.105 0.339 0.647
\delta -0.636 -0.262 -0.024
\tau_1/\tau_2 0.679 0.996 1.350
Q_{PAH} 0.463 1.658 3.670
U_{min} 2.893 8.003 15.184
{\rm log}_{10}(\gamma_e)\, -3.422 -2.428 -1.179

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.887 -1.661 -0.474
{\rm log}_{10}(\tau_{AGN})\, 0.884 1.250 1.774

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.809 -1.474 -1.151
0.03-0.10 Gyr -1.630 -1.034 -0.525
0.10-0.33 Gyr -1.467 -0.969 -0.546
0.33-1.10 Gyr -1.760 -1.272 -0.940
1.10-3.66 Gyr -1.907 -1.380 -1.104
3.66-12.15 Gyr -2.266 -1.492 -1.212
12.15-13.50 Gyr -2.531 -1.559 -1.043

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.994 9.076 9.169
{\rm log}_{10}({\rm SFR}) -1.068 -0.786 -0.552
{\rm log}_{10}({\rm sSFR}) -10.172 -9.860 -9.617
{\rm stellar\ age} 6.333 7.386 8.915

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.624 -1.340 -1.071
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.203 0.243 0.406

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.080 0.155 0.284
\delta -0.438 -0.070 0.211
\tau_1/\tau_2 0.521 0.855 1.184
Q_{PAH} 0.659 1.656 3.490
U_{min} 3.153 7.912 15.003
{\rm log}_{10}(\gamma_e)\, -3.183 -2.212 -1.437

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.983 -2.095 -1.716
{\rm log}_{10}(\tau_{AGN})\, 1.013 1.350 1.714

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.956 -1.567 -1.362
0.03-0.10 Gyr -0.954 -0.645 -0.400
0.10-0.33 Gyr -1.157 -0.760 -0.503
0.33-1.10 Gyr -1.481 -1.061 -0.824
1.10-3.66 Gyr -1.436 -1.026 -0.775
3.66-12.15 Gyr -1.089 -0.848 -0.704
12.15-13.50 Gyr -1.204 -0.732 -0.175