2026ahy

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Information

Transient

Name: AT2026ahy
Right ascension: 11h51m15.32s
Declination: 4d58m31.97s
Discovery Date: Jan. 15, 2026, 3:51 a.m.
Classification: None
Redshift: None
MW E(B-V):

Host

Name: SDSSJ115115.29+04583
Right ascension: 11h51m15.36s
Declination: 4d58m31.98s
Redshift: None
Photometric Redshift: 0.095
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 1.35
Transient MWEBV processed 0.04
Host match processed 3.87
Host information processed 0.11
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 5.86
Validate global photometry processed 18.35
Global host SED inference processed 408.35
Local aperture photometry processed 5.78
Validate local photometry processed 0.02
Local host SED inference processed 511.15
 

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) = 11h51m15.32s, 4d58m31.97s
semi major axis, semi minor axis (arcsec) = 1.13, 1.13
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 155.51 0.9 18.421 0.006 AB
PanSTARRS_i 175.06 0.34 18.292 0.002 AB
PanSTARRS_z 182.61 0.73 18.246 0.004 AB
DES_z 213.27 2.07 18.078 0.011 AB
PanSTARRS_y 208.06 1.82 18.105 0.010 AB

Aperture details

RA, DEC (J2000) = 11h51m15.30s, 4d58m32.24s
semi major axis, semi minor axis (arcsec) = 4.26, 3.85
angle (degrees, anti-clockwise from east) = -30.28

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 52.46 1.12 19.600 0.023 AB
SDSS_u 87.52 4.04 19.045 0.050 AB
SDSS_g 245.98 4.2 17.923 0.019 AB
PanSTARRS_g 249.88 1.0 17.906 0.004 AB
SDSS_r 344.78 5.12 17.556 0.016 AB
PanSTARRS_r 336.85 1.21 17.581 0.004 AB
DES_r 367.24 1.45 17.488 0.004 AB
SDSS_i 452.73 6.23 17.260 0.015 AB
PanSTARRS_i 445.36 1.03 17.278 0.003 AB
PanSTARRS_z 465.24 2.35 17.231 0.005 AB
SDSS_z 494.94 12.48 17.164 0.027 AB
DES_z 502.55 3.3 17.147 0.007 AB
PanSTARRS_y 510.66 6.27 17.130 0.013 AB
2MASS_J 509.04 147.79 16.238 0.315 Vega
2MASS_H 462.22 193.26 15.870 0.454 Vega
2MASS_K 807.22 250.08 14.795 0.336 Vega
WISE_W1 294.28 12.51 15.029 0.046 Vega
WISE_W2 227.76 17.4 14.667 0.083 Vega
WISE_W3 972.9 68.46 11.256 0.076 Vega
WISE_W4 1086.65 481.71 9.690 0.481 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})\, 9.326 9.595 9.782
{\rm log}_{10}({\rm SFR}) -0.559 0.132 0.697
{\rm log}_{10}({\rm sSFR}) -10.137 -9.510 -8.793
{\rm stellar\ age} 1.293 4.928 7.104

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.464 -0.803 -0.271
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.194 -0.379 0.232

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.147 0.383 0.719
\delta -0.702 -0.220 0.181
\tau_1/\tau_2 0.690 1.073 1.446
Q_{PAH} 1.117 2.695 5.163
U_{min} 3.222 9.138 16.856
{\rm log}_{10}(\gamma_e)\, -3.048 -1.929 -0.709

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.613 -1.445 -0.577
{\rm log}_{10}(\tau_{AGN})\, 0.885 1.484 1.900

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.043 -0.473 -0.107
0.03-0.10 Gyr -0.613 0.245 0.848
0.10-0.33 Gyr -0.883 0.110 0.665
0.33-1.06 Gyr -2.117 -0.274 0.266
1.06-3.46 Gyr -2.345 -0.440 -0.080
3.46-11.26 Gyr -2.306 -0.548 -0.133
11.26-12.51 Gyr -2.409 -0.604 0.132

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.928 10.020 10.118
{\rm log}_{10}({\rm SFR}) -0.003 0.257 0.529
{\rm log}_{10}({\rm sSFR}) -10.053 -9.772 -9.471
{\rm stellar\ age} 4.399 5.770 6.855

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.077 -0.713 -0.453
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.449 0.151 0.397

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.102 0.208 0.386
\delta -0.529 -0.090 0.211
\tau_1/\tau_2 0.767 1.076 1.389
Q_{PAH} 0.658 1.741 3.898
U_{min} 2.461 6.958 13.712
{\rm log}_{10}(\gamma_e)\, -3.104 -2.010 -1.114

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.281 -1.911 -1.417
{\rm log}_{10}(\tau_{AGN})\, 1.056 1.414 1.809

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.208 -0.057 0.090
0.03-0.10 Gyr 0.033 0.346 0.659
0.10-0.33 Gyr 0.275 0.553 0.793
0.33-1.06 Gyr 0.012 0.304 0.521
1.06-3.46 Gyr -0.157 0.122 0.327
3.46-11.26 Gyr -0.219 0.052 0.246
11.26-12.51 Gyr -0.417 0.090 0.502