2026apr

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Information

Transient

Name: AT2026apr
Right ascension: 12h57m11.68s
Declination: 63d37m56.46s
Discovery Date: Jan. 19, 2026, 2:03 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.013

Host

Name: 2658695
Right ascension: 12h57m12.15s
Declination: 63d37m41.51s
Redshift: 0.079613
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 16.09
Transient MWEBV processed 0.04
Host match processed 4.34
Host information processed 0.07
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 4.39
Validate global photometry processed 14.43
Global host SED inference processed 372.72
Local aperture photometry processed 4.21
Validate local photometry processed 0.03
Local host SED inference processed 753.15
 

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) = 12h57m11.68s, 63d37m56.46s
semi major axis, semi minor axis (arcsec) = 1.33, 1.33
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 1.23 0.42 23.673 0.371 AB
SDSS_r 0.39 0.61 24.933 1.723 AB
PanSTARRS_r 0.09 0.61 26.547 7.593 AB
SDSS_i 1.72 1.18 23.311 0.743 AB
PanSTARRS_i 1.8 0.46 23.259 0.277 AB
PanSTARRS_z 1.17 1.05 23.728 0.971 AB
SDSS_z 6.46 3.23 21.874 0.543 AB
PanSTARRS_y -0.55 2.45 AB

Aperture details

RA, DEC (J2000) = 12h57m12.13s, 63d37m42.21s
semi major axis, semi minor axis (arcsec) = 17.92, 9.59
angle (degrees, anti-clockwise from east) = -159.28

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 65.88 8.07 19.353 0.133 AB
GALEX_NUV 109.66 6.47 18.800 0.064 AB
SDSS_u 287.43 9.93 17.754 0.038 AB
SDSS_g 950.75 9.25 16.455 0.011 AB
PanSTARRS_g 1108.28 3.98 16.288 0.004 AB
SDSS_r 1899.86 12.45 15.703 0.007 AB
PanSTARRS_r 1917.65 5.78 15.693 0.003 AB
SDSS_i 2611.88 17.15 15.358 0.007 AB
PanSTARRS_i 2557.67 4.62 15.380 0.002 AB
PanSTARRS_z 2996.62 10.21 15.208 0.004 AB
SDSS_z 3213.55 34.27 15.133 0.012 AB
PanSTARRS_y 3631.36 25.03 15.000 0.007 AB
2MASS_H 5876.93 404.41 13.110 0.075 Vega
WISE_W1 2794.21 27.13 12.585 0.011 Vega
WISE_W2 2077.75 32.86 12.267 0.017 Vega
WISE_W3 5124.18 104.09 9.452 0.022 Vega
WISE_W4 10455.83 898.28 7.232 0.093 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})\, 7.216 7.778 8.258
{\rm log}_{10}({\rm SFR}) -1.235 -0.870 -0.373
{\rm log}_{10}({\rm sSFR}) -9.296 -8.400 -7.962
{\rm stellar\ age} 0.036 2.537 7.035

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.257 -0.378 0.069
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.503 -0.821 -0.036

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 1.353 1.900 2.670
\delta 0.066 0.242 0.349
\tau_1/\tau_2 0.730 1.158 1.608
Q_{PAH} 0.721 2.552 5.245
U_{min} 3.382 9.263 17.533
{\rm log}_{10}(\gamma_e)\, -3.026 -1.793 -0.647

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.201 -0.232 0.317
{\rm log}_{10}(\tau_{AGN})\, 1.086 1.533 1.920

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.070 -0.570 -0.074
0.03-0.10 Gyr -3.663 -1.669 -0.675
0.10-0.33 Gyr -5.386 -2.611 -1.382
0.33-1.07 Gyr -6.850 -3.326 -1.762
1.07-3.50 Gyr -7.273 -3.419 -1.886
3.50-11.44 Gyr -7.906 -3.313 -1.830
11.44-12.71 Gyr -8.153 -3.083 -1.534

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.893 10.936 10.979
{\rm log}_{10}({\rm SFR}) 0.293 0.475 0.669
{\rm log}_{10}({\rm sSFR}) -10.648 -10.467 -10.267
{\rm stellar\ age} 6.637 7.289 8.339

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.317 -0.131 0.015
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.352 0.052 0.277

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.105 0.161 0.262
\delta -0.801 -0.469 -0.145
\tau_1/\tau_2 0.780 1.131 1.484
Q_{PAH} 1.117 2.294 3.956
U_{min} 2.604 7.250 13.846
{\rm log}_{10}(\gamma_e)\, -2.856 -1.899 -1.113

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.575 -1.413 -1.230
{\rm log}_{10}(\tau_{AGN})\, 0.989 1.252 1.545

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.238 0.420 0.587
0.03-0.10 Gyr 0.191 0.493 0.761
0.10-0.33 Gyr 0.264 0.540 0.760
0.33-1.07 Gyr 0.317 0.578 0.761
1.07-3.50 Gyr 0.541 0.836 1.057
3.50-11.44 Gyr 0.950 1.092 1.177
11.44-12.71 Gyr 0.784 1.187 1.593