2026chb

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Information

Transient

Name: AT2026chb
Right ascension: 4h28m06.89s
Declination: 0d53m45.24s
Discovery Date: Feb. 4, 2026, 3:06 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.098

Host

Name:
Right ascension: 4h28m06.83s
Declination: 0d53m52.59s
Redshift: None
Photometric Redshift: 0.117
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.94
Transient MWEBV processed 0.12
Host match processed 7.08
Host information processed 0.14
Host MWEBV processed 0.11
Global aperture construction processed 0.64
Global aperture photometry processed 6.06
Validate global photometry processed 18.45
Global host SED inference processed 442.46
Local aperture photometry processed 6.04
Validate local photometry processed 0.02
Local host SED inference not enough filters 24.26
 

Cutout Download Report

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:
 

Aperture Photometry


Aperture details

RA, DEC (J2000) = 4h28m06.89s, 0d53m45.24s
semi major axis, semi minor axis (arcsec) = 0.94, 0.94
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 4.06 0.39 22.379 0.105 AB

Aperture details

RA, DEC (J2000) = 4h28m06.82s, 0d53m53.60s
semi major axis, semi minor axis (arcsec) = 9.43, 4.98
angle (degrees, anti-clockwise from east) = -4.84

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 35.91 6.43 20.012 0.194 AB
SDSS_g 219.62 4.44 18.046 0.022 AB
DES_g 240.2 0.71 17.949 0.003 AB
PanSTARRS_g 244.41 2.12 17.930 0.009 AB
SDSS_r 614.74 7.25 16.928 0.013 AB
PanSTARRS_r 618.21 2.72 16.922 0.005 AB
DES_r 691.45 2.13 16.801 0.003 AB
SDSS_i 1023.79 9.98 16.374 0.011 AB
PanSTARRS_i 1041.43 2.67 16.356 0.003 AB
PanSTARRS_z 1431.27 6.21 16.011 0.005 AB
SDSS_z 1514.47 21.53 15.949 0.015 AB
DES_z 1547.22 5.73 15.926 0.004 AB
PanSTARRS_y 1712.03 12.4 15.816 0.008 AB
2MASS_J 2196.99 212.59 14.651 0.105 Vega
2MASS_H 2851.75 275.38 13.895 0.105 Vega
2MASS_K 3462.57 358.09 13.214 0.112 Vega
WISE_W3 1196.52 94.31 11.031 0.086 Vega
WISE_W4 853.52 558.88 9.952 0.711 Vega
 

Imaging data

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Spectral Energy Distribution

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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})\, 11.117 11.194 11.332
{\rm log}_{10}({\rm SFR}) -1.935 -0.517 0.330
{\rm log}_{10}({\rm sSFR}) -13.203 -11.701 -10.782
{\rm stellar\ age} 7.170 8.264 11.558

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.976 -0.510 -0.258
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.715 -0.810 0.169

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.389 0.611 0.879
\delta -0.649 -0.254 0.041
\tau_1/\tau_2 0.493 0.902 1.329
Q_{PAH} 0.465 1.164 2.235
U_{min} 1.831 6.210 13.726
{\rm log}_{10}(\gamma_e)\, -3.634 -3.042 -1.787

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.238 -2.898 -1.512
{\rm log}_{10}(\tau_{AGN})\, 0.871 1.185 1.793

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.325 -0.453 0.335
0.03-0.10 Gyr -3.197 -0.707 0.328
0.10-0.32 Gyr -3.595 -0.868 0.227
0.32-1.05 Gyr -3.694 -0.879 0.265
1.05-3.40 Gyr -2.372 -0.091 0.961
3.40-11.02 Gyr -0.517 1.249 1.475
11.02-12.24 Gyr 0.878 1.779 2.467