2026ian results

Information

Transient
Name:AT2026ian
Right ascension: 13h32m21.47s
Declination:43d49m30.47s
Discovery Date:March 20, 2026, 8:25 a.m.
Classification:None
Redshift:None
MW E(B-V):0.017
Host
Name:2230050
Right ascension: 13h32m21.36s
Declination:43d49m30.68s
Redshift:None
Photometric Redshift:0.075
 

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_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 16.63
Transient MWEBV processed 0.04
Host match processed 3.63
Host information processed 0.09
Host MWEBV processed 0.04
Global aperture construction processed 0.61
Global aperture photometry processed 4.77
Validate global photometry processed 15.45
Global host SED inference processed 554.44
Local aperture photometry processed 4.51
Validate local photometry processed 0.02
Local host SED inference processed 548.25
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):13h32m21.47s, 43d49m30.47s
semi major axis, semi minor axis (arcsec):1.4, 1.4
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 72.64 0.46 19.247 0.007 AB
SDSS_r 138.31 3.1 18.548 0.024 AB
PanSTARRS_r 144.11 0.49 18.503 0.004 AB
SDSS_i 202.75 3.82 18.133 0.020 AB
PanSTARRS_i 202.45 0.48 18.134 0.003 AB
PanSTARRS_z 260.16 0.93 17.862 0.004 AB
SDSS_z 264.79 6.09 17.843 0.025 AB
PanSTARRS_y 272.58 2.46 17.811 0.010 AB

Aperture details

RA, DEC (J2000):13h32m21.43s, 43d49m30.81s
semi major axis, semi minor axis (arcsec):5.51, 5.26
angle (degrees, anti-clockwise from east):-168.64
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.21 1.17 23.693 1.045 AB
GALEX_NUV 6.68 2.3 21.838 0.374 AB
SDSS_u 44.09 4.55 19.789 0.112 AB
SDSS_g 183.0 3.76 18.244 0.022 AB
PanSTARRS_g 204.97 1.62 18.121 0.009 AB
SDSS_r 391.03 5.56 17.419 0.015 AB
PanSTARRS_r 402.36 1.66 17.388 0.004 AB
SDSS_i 566.46 7.2 17.017 0.014 AB
PanSTARRS_i 561.23 1.64 17.027 0.003 AB
PanSTARRS_z 710.22 3.25 16.772 0.005 AB
SDSS_z 763.6 18.37 16.693 0.026 AB
PanSTARRS_y 793.27 9.24 16.651 0.013 AB
2MASS_J 943.75 130.37 15.568 0.150 Vega
2MASS_H 991.62 202.48 15.042 0.222 Vega
2MASS_K 996.24 231.73 14.566 0.253 Vega
WISE_W1 343.92 11.96 14.860 0.038 Vega
WISE_W2 192.87 14.62 14.848 0.082 Vega
WISE_W3 88.5 54.71 13.859 0.671 Vega
WISE_W4 218.68 359.91 11.430 1.787 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.857 9.968 10.072
{\rm log}_{10}({\rm SFR}) -3.392 -1.640 -0.669
{\rm log}_{10}({\rm sSFR}) -13.357 -11.592 -10.633
{\rm stellar\ age} 7.313 8.925 12.000

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.603 -1.070 -0.683
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.604 -0.874 -0.055

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.245 0.610 0.954
\delta -0.622 -0.259 0.157
\tau_1/\tau_2 0.573 1.012 1.457
Q_{PAH} 0.831 2.855 5.476
U_{min} 3.350 9.173 17.178
{\rm log}_{10}(\gamma_e)\, -3.191 -1.833 -0.448

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.010 -0.884 -0.204
{\rm log}_{10}(\tau_{AGN})\, 1.110 1.529 1.998

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -4.453 -2.087 -1.214
0.03-0.10 Gyr -3.914 -1.675 -0.567
0.10-0.33 Gyr -4.144 -1.645 -0.533
0.33-1.07 Gyr -4.490 -1.820 -0.666
1.07-3.51 Gyr -3.771 -1.457 -0.233
3.51-11.49 Gyr -1.816 -0.123 0.197
11.49-12.76 Gyr -0.395 0.660 1.176

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.275 10.369 10.452
{\rm log}_{10}({\rm SFR}) -4.770 -2.246 -0.958
{\rm log}_{10}({\rm sSFR}) -15.272 -12.612 -11.306
{\rm stellar\ age} 7.490 10.668 12.109

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.723 -1.439 -1.174
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.467 -0.610 0.158

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.282 0.388 0.531
\delta -0.909 -0.731 -0.514
\tau_1/\tau_2 0.471 0.929 1.396
Q_{PAH} 0.693 2.158 4.453
U_{min} 3.402 10.444 18.879
{\rm log}_{10}(\gamma_e)\, -2.783 -1.779 -0.788

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.175 -2.983 -2.000
{\rm log}_{10}(\tau_{AGN})\, 1.143 1.641 1.949

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -6.579 -3.476 -1.729
0.03-0.10 Gyr -5.267 -2.320 -0.860
0.10-0.33 Gyr -5.195 -2.290 -0.604
0.33-1.07 Gyr -5.615 -2.775 -0.916
1.07-3.51 Gyr -4.248 -1.977 -0.175
3.51-11.49 Gyr -2.236 0.077 0.602
11.49-12.76 Gyr -0.250 1.375 1.602