2026ast

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Information

Transient

Name: AT2026ast
Right ascension: 1h25m54.18s
Declination: -20d18m49.38s
Discovery Date: Jan. 19, 2026, 2:27 a.m.
Classification: None
Redshift: None
MW E(B-V):

Host

Name:
Right ascension: 1h25m54.96s
Declination: -20d18m52.84s
Redshift: None
Photometric Redshift: 0.043
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 14.51
Transient MWEBV processed 0.04
Host match processed 5.42
Host information processed 0.14
Host MWEBV processed 0.04
Global aperture construction processed 0.62
Global aperture photometry processed 5.21
Validate global photometry processed 15.84
Global host SED inference processed 404.59
Local aperture photometry processed 5.07
Validate local photometry processed 0.03
Local host SED inference processed 444.99
 

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) = 1h25m54.18s, -20d18m49.38s
semi major axis, semi minor axis (arcsec) = 2.35, 2.35
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 2.76 2.18 22.798 0.859 AB
SDSS_g 14.28 1.18 21.013 0.090 AB
PanSTARRS_g 20.07 0.58 20.644 0.031 AB
SDSS_r 21.49 1.62 20.569 0.082 AB
PanSTARRS_r 28.05 0.84 20.280 0.033 AB
SDSS_i 31.32 2.37 20.160 0.082 AB
PanSTARRS_i 33.94 0.89 20.073 0.028 AB
PanSTARRS_z 34.43 1.75 20.058 0.055 AB
SDSS_z 33.52 6.49 20.087 0.210 AB
PanSTARRS_y 34.17 4.45 20.066 0.141 AB

Aperture details

RA, DEC (J2000) = 1h25m54.92s, -20d18m52.41s
semi major axis, semi minor axis (arcsec) = 14.05, 11.8
angle (degrees, anti-clockwise from east) = -46.09

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 182.64 10.37 18.246 0.062 AB
GALEX_NUV 291.31 7.53 17.739 0.028 AB
SDSS_u 633.89 12.95 16.895 0.022 AB
SDSS_g 1882.64 11.81 15.713 0.007 AB
SDSS_r 2934.92 15.25 15.231 0.006 AB
PanSTARRS_r 2988.43 4.75 15.211 0.002 AB
SDSS_i 4162.29 19.62 14.852 0.005 AB
PanSTARRS_i 4029.82 4.92 14.887 0.001 AB
PanSTARRS_z 4393.77 9.81 14.793 0.002 AB
SDSS_z 4882.74 38.89 14.678 0.009 AB
2MASS_J 6511.08 283.75 13.471 0.047 Vega
2MASS_H 7645.06 456.69 12.824 0.065 Vega
2MASS_K 6182.28 521.05 12.584 0.092 Vega
WISE_W2 3014.31 49.87 11.863 0.018 Vega
WISE_W3 19554.06 209.29 7.998 0.012 Vega
WISE_W4 26427.83 1594.23 6.225 0.065 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.129 8.346 8.478
{\rm log}_{10}({\rm SFR}) -2.051 -1.479 -0.878
{\rm log}_{10}({\rm sSFR}) -10.428 -9.833 -9.191
{\rm stellar\ age} 3.662 6.562 8.004

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.745 -1.226 -0.649
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.746 -1.193 -0.171

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.179 0.494 0.817
\delta -0.502 -0.077 0.239
\tau_1/\tau_2 0.652 1.025 1.393
Q_{PAH} 0.995 2.809 5.265
U_{min} 2.937 7.974 15.317
{\rm log}_{10}(\gamma_e)\, -2.887 -1.888 -0.933

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.238 -0.667 -0.049
{\rm log}_{10}(\tau_{AGN})\, 0.999 1.419 1.876

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.117 -1.610 -1.104
0.03-0.10 Gyr -2.177 -1.483 -0.804
0.10-0.33 Gyr -2.284 -1.639 -1.046
0.33-1.09 Gyr -2.411 -1.768 -1.312
1.09-3.59 Gyr -2.363 -1.672 -1.390
3.59-11.86 Gyr -2.342 -1.618 -1.378
11.86-13.18 Gyr -2.546 -1.649 -1.072

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.217 10.350 10.469
{\rm log}_{10}({\rm SFR}) 0.422 0.800 1.086
{\rm log}_{10}({\rm sSFR}) -9.981 -9.586 -9.222
{\rm stellar\ age} 1.946 4.997 6.933

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.808 -0.512 -0.295
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.607 -1.020 -0.218

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.536 0.801 1.044
\delta -0.002 0.142 0.258
\tau_1/\tau_2 0.441 0.807 1.149
Q_{PAH} 0.817 1.494 2.431
U_{min} 2.025 6.105 12.205
{\rm log}_{10}(\gamma_e)\, -3.686 -2.952 -2.049

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.047 -2.695 -1.724
{\rm log}_{10}(\tau_{AGN})\, 0.981 1.376 1.804

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.347 0.696 0.917
0.03-0.10 Gyr 0.284 0.821 1.186
0.10-0.33 Gyr 0.533 0.972 1.411
0.33-1.09 Gyr 0.325 0.718 1.074
1.09-3.59 Gyr -0.085 0.456 0.698
3.59-11.86 Gyr -0.728 0.222 0.551
11.86-13.18 Gyr -0.938 0.205 0.759