2025aiby

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Information

Transient

Name: AT2025aiby
Right ascension: 1h46m32.83s
Declination: 7d35m22.16s
Discovery Date: Dec. 22, 2025, 9 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.034

Host

Name:
Right ascension: 1h46m32.89s
Declination: 7d35m22.65s
Redshift: None
Photometric Redshift: 0.082
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.69
Transient MWEBV processed 0.09
Host match processed 5.01
Host information processed 0.16
Host MWEBV processed 0.06
Global aperture construction processed 0.63
Global aperture photometry processed 4.19
Validate global photometry processed 1.91
Global host SED inference processed 431.48
Local aperture photometry processed 5.71
Validate local photometry processed 0.06
Local host SED inference processed 415.02
 

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) = 1h46m32.83s, 7d35m22.16s
semi major axis, semi minor axis (arcsec) = 1.3, 1.3
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 33.79 0.43 20.078 0.014 AB
PanSTARRS_r 59.31 0.48 19.467 0.009 AB
SDSS_i 94.4 2.73 18.963 0.031 AB
PanSTARRS_i 81.3 0.29 19.125 0.004 AB
PanSTARRS_z 97.81 0.8 18.924 0.009 AB
SDSS_z 113.69 4.54 18.761 0.043 AB
DES_z 92.75 2.01 18.982 0.024 AB
PanSTARRS_y 104.73 1.84 18.850 0.019 AB

Aperture details

RA, DEC (J2000) = 1h46m32.87s, 7d35m22.94s
semi major axis, semi minor axis (arcsec) = 6.04, 3.45
angle (degrees, anti-clockwise from east) = -67.1

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.99 2.97 21.515 0.359 AB
GALEX_NUV 13.72 2.54 21.056 0.201 AB
SDSS_u 42.64 4.46 19.825 0.113 AB
SDSS_g 111.0 3.19 18.787 0.031 AB
DES_g 110.84 0.88 18.788 0.009 AB
PanSTARRS_g 118.58 1.07 18.715 0.010 AB
SDSS_r 205.56 4.57 18.118 0.024 AB
PanSTARRS_r 200.66 2.1 18.144 0.011 AB
SDSS_i 282.12 5.85 17.774 0.023 AB
PanSTARRS_i 272.2 1.06 17.813 0.004 AB
PanSTARRS_z 313.29 2.88 17.660 0.010 AB
SDSS_z 331.24 14.31 17.600 0.047 AB
DES_z 314.19 3.83 17.657 0.013 AB
PanSTARRS_y 329.86 6.54 17.604 0.022 AB
2MASS_J 244.94 116.54 17.032 0.517 Vega
2MASS_H 402.41 160.1 16.021 0.432 Vega
2MASS_K 697.35 198.41 14.954 0.309 Vega
WISE_W1 197.6 14.56 15.462 0.080 Vega
WISE_W2 120.73 20.68 15.356 0.186 Vega
WISE_W3 433.69 62.44 12.133 0.156 Vega
WISE_W4 364.47 240.68 10.876 0.717 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})\, 9.332 9.450 9.562
{\rm log}_{10}({\rm SFR}) -1.736 -1.172 -0.513
{\rm log}_{10}({\rm sSFR}) -11.238 -10.643 -9.978
{\rm stellar\ age} 5.319 6.950 9.034

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.622 -1.151 -0.763
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.600 -0.905 0.004

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.247 0.493 0.827
\delta -0.609 -0.284 0.105
\tau_1/\tau_2 0.630 0.995 1.320
Q_{PAH} 0.785 2.200 4.956
U_{min} 2.884 7.797 14.793
{\rm log}_{10}(\gamma_e)\, -2.862 -1.664 -0.555

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.588 -0.759 -0.135
{\rm log}_{10}(\tau_{AGN})\, 1.053 1.473 1.914

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.612 -1.152 -0.752
0.03-0.10 Gyr -2.017 -1.248 -0.428
0.10-0.33 Gyr -2.071 -1.168 -0.407
0.33-1.07 Gyr -1.938 -0.904 -0.354
1.07-3.49 Gyr -1.477 -0.598 -0.310
3.49-11.41 Gyr -0.895 -0.476 -0.280
11.41-12.68 Gyr -0.959 -0.405 0.320

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.905 9.966 10.050
{\rm log}_{10}({\rm SFR}) -0.620 -0.327 -0.022
{\rm log}_{10}({\rm sSFR}) -10.597 -10.291 -9.989
{\rm stellar\ age} 7.243 8.018 10.668

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.189 -0.895 -0.671
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.403 0.231 0.407

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.108 0.206 0.346
\delta -0.683 -0.289 0.057
\tau_1/\tau_2 0.638 0.989 1.373
Q_{PAH} 1.225 2.695 4.723
U_{min} 2.868 7.787 14.786
{\rm log}_{10}(\gamma_e)\, -2.497 -1.491 -0.515

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.574 -2.213 -1.499
{\rm log}_{10}(\tau_{AGN})\, 1.004 1.454 1.842

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.977 -0.663 -0.490
0.03-0.10 Gyr -0.616 -0.230 0.115
0.10-0.33 Gyr -1.148 -0.532 -0.198
0.33-1.07 Gyr -1.500 -0.747 -0.400
1.07-3.49 Gyr -1.504 -0.627 -0.198
3.49-11.41 Gyr -0.284 0.119 0.232
11.41-12.68 Gyr -0.094 0.406 1.072