2026ewi results

Information

Transient
Name:AT2026ewi
Right ascension: 19h30m15.86s
Declination:55d50m57.35s
Discovery Date:Feb. 18, 2026, 3:19 p.m.
Classification:None
Redshift:None
MW E(B-V):0.113
Host
Name:
Right ascension: 19h30m15.82s
Declination:55d50m56.98s
Redshift:None
Photometric Redshift:0.053
 

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 5.14
Transient MWEBV processed 0.04
Host match processed 5.48
Host information processed 0.18
Host MWEBV processed 0.05
Global aperture construction processed 0.67
Global aperture photometry processed 3.81
Validate global photometry processed 10.67
Global host SED inference processed 404.22
Local aperture photometry processed 3.75
Validate local photometry processed 0.02
Local host SED inference processed 519.56
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):19h30m15.86s, 55d50m57.35s
semi major axis, semi minor axis (arcsec):1.95, 1.95
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 379.13 0.59 17.453 0.002 AB
PanSTARRS_r 673.9 0.79 16.829 0.001 AB
PanSTARRS_i 1007.76 0.84 16.392 0.001 AB
PanSTARRS_z 1174.78 1.63 16.225 0.002 AB
PanSTARRS_y 1353.15 3.59 16.072 0.003 AB

Aperture details

RA, DEC (J2000):19h30m15.82s, 55d50m57.13s
semi major axis, semi minor axis (arcsec):9.3, 8.36
angle (degrees, anti-clockwise from east):-149.98
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 1106.59 2.18 16.290 0.002 AB
PanSTARRS_r 1748.27 2.81 15.793 0.002 AB
PanSTARRS_i 2444.88 3.12 15.429 0.001 AB
PanSTARRS_z 2683.12 6.65 15.328 0.003 AB
PanSTARRS_y 3221.26 15.81 15.130 0.005 AB
2MASS_J 3903.14 211.37 14.027 0.059 Vega
2MASS_H 5158.19 383.81 13.251 0.081 Vega
2MASS_K 4773.51 375.82 12.865 0.085 Vega
WISE_W1 2590.11 31.2 12.668 0.013 Vega
WISE_W2 1844.82 30.32 12.396 0.018 Vega
WISE_W3 13176.36 93.98 8.427 0.008 Vega
WISE_W4 13938.51 594.56 6.919 0.046 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.984 10.196 10.334
{\rm log}_{10}({\rm SFR}) -0.912 -0.004 0.797
{\rm log}_{10}({\rm sSFR}) -11.062 -10.144 -9.343
{\rm stellar\ age} 4.301 7.317 9.876

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.771 -1.324 -0.767
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.720 -0.729 0.155

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.368 0.668 0.986
\delta -0.741 -0.436 -0.007
\tau_1/\tau_2 0.647 1.058 1.445
Q_{PAH} 0.661 2.132 3.943
U_{min} 2.937 8.288 15.525
{\rm log}_{10}(\gamma_e)\, -3.246 -1.787 -0.480

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.900 -1.842 -0.770
{\rm log}_{10}(\tau_{AGN})\, 1.004 1.591 2.031

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.204 -0.325 0.067
0.03-0.10 Gyr -1.268 0.052 0.948
0.10-0.33 Gyr -1.681 -0.150 0.564
0.33-1.08 Gyr -2.030 -0.279 0.360
1.08-3.57 Gyr -1.516 -0.050 0.407
3.57-11.75 Gyr -0.875 0.192 0.459
11.75-13.05 Gyr -0.853 0.370 1.178

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.201 10.382 10.587
{\rm log}_{10}({\rm SFR}) 0.219 0.659 1.194
{\rm log}_{10}({\rm sSFR}) -10.263 -9.761 -9.055
{\rm stellar\ age} 4.061 6.614 8.412

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.015 -0.510 -0.192
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.778 -1.008 0.252

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.263 0.427 0.655
\delta -0.782 -0.138 0.278
\tau_1/\tau_2 0.669 1.051 1.440
Q_{PAH} 1.106 2.053 3.675
U_{min} 2.203 6.478 13.553
{\rm log}_{10}(\gamma_e)\, -3.287 -2.329 -1.727

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.381 -1.769 -1.272
{\rm log}_{10}(\tau_{AGN})\, 1.197 1.627 1.949

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.259 0.580 0.806
0.03-0.10 Gyr 0.022 0.679 1.300
0.10-0.33 Gyr -0.589 0.320 0.808
0.33-1.08 Gyr -0.529 0.273 0.792
1.08-3.57 Gyr -0.370 0.331 0.666
3.57-11.75 Gyr -0.275 0.384 0.696
11.75-13.05 Gyr -0.400 0.482 1.113