2026ion results

Information

Transient
Name:AT2026ion
Right ascension: 15h18m39.90s
Declination:52d52m14.33s
Discovery Date:March 18, 2026, 7:17 p.m.
Classification:None
Redshift:None
MW E(B-V):0.012
Host
Name:J151839.81+525213.00
Right ascension: 15h18m39.81s
Declination:52d52m13.00s
Redshift:None
Photometric Redshift:0.072
 

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
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
GALEX_NUV
GALEX_FUV
DES_g
DES_r
DES_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 14.41
Transient MWEBV processed 0.04
Host match processed 5.97
Host information processed 0.11
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 4.9
Validate global photometry processed 14.64
Global host SED inference processed 423.97
Local aperture photometry processed 4.82
Validate local photometry processed 0.02
Local host SED inference processed 458.42
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):15h18m39.90s, 52d52m14.33s
semi major axis, semi minor axis (arcsec):1.45, 1.45
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 24.39 1.33 20.432 0.059 AB
PanSTARRS_g 28.36 0.32 20.268 0.012 AB
SDSS_r 54.84 2.0 19.552 0.040 AB
PanSTARRS_r 56.28 0.48 19.524 0.009 AB
SDSS_i 83.06 2.54 19.102 0.033 AB
PanSTARRS_i 84.74 0.53 19.080 0.007 AB
PanSTARRS_z 112.65 1.14 18.771 0.011 AB
SDSS_z 110.26 4.59 18.794 0.045 AB
PanSTARRS_y 123.69 2.59 18.669 0.023 AB

Aperture details

RA, DEC (J2000):15h18m39.82s, 52d52m12.97s
semi major axis, semi minor axis (arcsec):10.53, 3.24
angle (degrees, anti-clockwise from east):-173.9
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 31.74 4.12 20.146 0.141 AB
SDSS_g 118.76 3.2 18.713 0.029 AB
PanSTARRS_g 131.04 1.22 18.607 0.010 AB
SDSS_r 261.01 4.75 17.858 0.020 AB
PanSTARRS_r 251.56 1.85 17.898 0.008 AB
SDSS_i 367.07 6.26 17.488 0.019 AB
PanSTARRS_i 364.59 2.03 17.495 0.006 AB
PanSTARRS_z 457.11 4.4 17.250 0.010 AB
SDSS_z 469.3 15.98 17.221 0.037 AB
PanSTARRS_y 512.01 10.16 17.127 0.022 AB
2MASS_J 855.16 135.2 15.675 0.172 Vega
2MASS_H 1118.59 238.83 14.911 0.232 Vega
2MASS_K 820.6 255.5 14.777 0.338 Vega
WISE_W1 426.53 12.62 14.626 0.032 Vega
WISE_W2 288.43 14.61 14.411 0.055 Vega
WISE_W3 606.53 45.77 11.769 0.082 Vega
WISE_W4 712.93 309.76 10.147 0.472 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.460 9.578 9.696
{\rm log}_{10}({\rm SFR}) -2.385 -1.380 -0.814
{\rm log}_{10}({\rm sSFR}) -12.038 -10.984 -10.349
{\rm stellar\ age} 6.174 7.532 10.307

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.341 -0.691 -0.277
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.629 -0.868 0.000

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.507 0.927 1.383
\delta -0.368 -0.020 0.277
\tau_1/\tau_2 0.687 1.038 1.389
Q_{PAH} 0.784 2.723 5.386
U_{min} 2.995 8.089 15.084
{\rm log}_{10}(\gamma_e)\, -3.113 -2.016 -0.864

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.742 -0.808 -0.203
{\rm log}_{10}(\tau_{AGN})\, 1.063 1.465 1.923

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.917 -1.592 -1.049
0.03-0.10 Gyr -2.729 -1.416 -0.734
0.10-0.33 Gyr -2.684 -1.323 -0.641
0.33-1.07 Gyr -2.631 -1.176 -0.497
1.07-3.52 Gyr -1.975 -0.662 -0.250
3.52-11.52 Gyr -0.989 -0.322 -0.133
11.52-12.80 Gyr -0.962 -0.161 0.611

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.119 10.190 10.282
{\rm log}_{10}({\rm SFR}) -1.520 -0.772 -0.244
{\rm log}_{10}({\rm sSFR}) -11.738 -10.971 -10.410
{\rm stellar\ age} 7.495 8.633 11.863

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.963 -0.644 -0.409
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.717 -0.711 0.242

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.303 0.509 0.713
\delta -0.136 0.129 0.300
\tau_1/\tau_2 0.568 0.958 1.369
Q_{PAH} 1.050 2.210 3.963
U_{min} 2.832 8.143 15.893
{\rm log}_{10}(\gamma_e)\, -3.090 -2.322 -1.315

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.274 -1.578 -1.266
{\rm log}_{10}(\tau_{AGN})\, 0.914 1.238 1.674

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.068 -1.054 -0.567
0.03-0.10 Gyr -1.744 -0.731 -0.122
0.10-0.33 Gyr -2.540 -1.019 -0.352
0.33-1.07 Gyr -3.253 -1.228 -0.534
1.07-3.52 Gyr -2.496 -0.873 -0.139
3.52-11.52 Gyr -0.865 0.283 0.445
11.52-12.80 Gyr 0.029 0.764 1.390