2026ahnv results

Information

Transient
Name:AT2026ahnv
Right ascension: 2h21m30.28s
Declination:18d45m30.15s
Discovery Date:Oct. 22, 2026, 8:34 a.m.
Classification:None
Redshift:None
MW E(B-V):0.189
Host
Name:J022130.28+184530.04
Object ID:9906628387669201
Catalog Name:decals
Catalog Release:dr9
Right ascension: 2h21m30.28s
Declination:18d45m30.04s
Redshift:None
Photometric Redshift:0.141
Dataset
Version:0
 

Cutout Download Report

Downloadable 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: blocked

Task Name Status Time (s)
Cutout download processed 20.45
Transient MWEBV processed 0.05
Host match processed 5.07
Host information processed 0.14
Host MWEBV processed 0.18
Host spectrum download processed 0.06
Global aperture construction processed 0.66
Global aperture photometry processed 7.12
Validate global photometry processed 19.9
Global host SED inference processed 325.32
Local aperture photometry processed 7.0
Validate local photometry no valid phot 0.03
Local host SED inference not processed None
 

Imaging data


 

Spectral Energy Distribution


 

Host Galaxy Spectrum

 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.391 10.485 10.575
{\rm log}_{10}({\rm SFR}) -1.005 -0.220 0.197
{\rm log}_{10}({\rm sSFR}) -11.517 -10.735 -10.281
{\rm stellar\ age} 6.396 7.221 8.882

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.237 -0.863 -0.533
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.396 -0.616 0.051

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.340 0.554 0.751
\delta -0.735 -0.396 -0.006
\tau_1/\tau_2 0.642 0.946 1.251
Q_{PAH} 0.524 1.627 3.678
U_{min} 2.584 7.560 15.655
{\rm log}_{10}(\gamma_e)\, -2.981 -1.926 -0.827

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.478 -3.631 -2.366
{\rm log}_{10}(\tau_{AGN})\, 1.140 1.566 1.962

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.097 -0.145 0.284
0.03-0.10 Gyr -1.264 -0.334 0.154
0.10-0.32 Gyr -1.282 -0.458 0.014
0.32-1.04 Gyr -1.249 -0.396 0.089
1.04-3.34 Gyr -0.836 0.103 0.512
3.34-10.77 Gyr 0.388 0.686 0.815
10.77-11.96 Gyr 0.106 0.752 1.398
 

Aperture Photometry


Aperture details

Data not available


Aperture details

RA, DEC (J2000):2h21m30.26s, 18d45m30.19s
semi major axis, semi minor axis (arcsec):3.54, 3.13
angle (degrees, anti-clockwise from east):219.76
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 3.07 1.75 22.680 0.618 AB
GALEX_NUV 1.57 1.85 23.407 1.274 AB
SDSS_u 2.18 2.62 23.055 1.305 AB
SDSS_g 26.3 1.68 20.350 0.070 AB
DES_g 34.58 0.24 20.053 0.007 AB
PanSTARRS_g 33.85 0.84 20.076 0.027 AB
SDSS_r 93.91 3.07 18.968 0.035 AB
PanSTARRS_r 90.06 1.21 19.014 0.015 AB
DES_r 106.02 0.68 18.836 0.007 AB
SDSS_i 154.19 4.19 18.430 0.030 AB
PanSTARRS_i 157.5 1.22 18.407 0.008 AB
PanSTARRS_z 210.18 1.98 18.094 0.010 AB
SDSS_z 217.11 10.94 18.058 0.055 AB
DES_z 232.14 2.27 17.986 0.011 AB
PanSTARRS_y 263.95 4.75 17.846 0.020 AB
2MASS_J 345.97 93.04 16.658 0.292 Vega
2MASS_H 419.9 136.82 15.975 0.354 Vega
2MASS_K 517.54 160.88 15.277 0.337 Vega
WISE_W1 195.08 9.9 15.475 0.055 Vega
WISE_W2 124.04 15.97 15.327 0.140 Vega
WISE_W3 150.84 63.27 13.280 0.455 Vega
WISE_W4 -5.9 354.11 Vega