2025ahhy

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Information

Transient

Name: AT2025ahhy
Right ascension: 8h05m01.40s
Declination: 6d06m09.18s
Discovery Date: Dec. 17, 2025, 3:08 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.026

Host

Name:
Right ascension: 8h05m01.33s
Declination: 6d06m06.72s
Redshift: None
Photometric Redshift: 0.112
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 22.15
Transient MWEBV processed 0.05
Host match processed 5.16
Host information processed 0.13
Host MWEBV processed 0.05
Global aperture construction processed 0.76
Global aperture photometry processed 5.97
Validate global photometry processed 18.17
Global host SED inference processed 406.6
Local aperture photometry processed 6.45
Validate local photometry processed 0.02
Local host SED inference not enough filters 20.11
 

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) = 8h05m01.40s, 6d06m09.18s
semi major axis, semi minor axis (arcsec) = 0.98, 0.98
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 4.59 0.6 22.246 0.143 AB

Aperture details

RA, DEC (J2000) = 8h05m01.32s, 6d06m06.85s
semi major axis, semi minor axis (arcsec) = 5.49, 3.61
angle (degrees, anti-clockwise from east) = -89.19

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 28.31 3.52 20.270 0.135 AB
SDSS_g 92.34 2.84 18.987 0.033 AB
DES_g 99.16 0.67 18.909 0.007 AB
PanSTARRS_g 106.8 1.02 18.829 0.010 AB
SDSS_r 149.58 3.93 18.463 0.029 AB
PanSTARRS_r 156.57 1.05 18.413 0.007 AB
DES_r 166.08 1.29 18.349 0.008 AB
SDSS_i 206.68 5.52 18.112 0.029 AB
PanSTARRS_i 206.34 1.14 18.114 0.006 AB
PanSTARRS_z 246.96 3.21 17.918 0.014 AB
SDSS_z 229.32 15.2 17.999 0.072 AB
DES_z 254.02 4.1 17.888 0.018 AB
PanSTARRS_y 251.06 7.06 17.901 0.031 AB
2MASS_J 196.69 145.0 17.271 0.800 Vega
2MASS_H 452.04 213.39 15.894 0.513 Vega
2MASS_K 474.57 265.93 15.371 0.608 Vega
WISE_W1 136.16 10.65 15.866 0.085 Vega
WISE_W2 119.68 13.38 15.366 0.121 Vega
WISE_W3 347.05 70.86 12.375 0.222 Vega
WISE_W4 124.12 360.51 12.045 3.154 Vega
 

Imaging data

Click the image to load the interactive plot.


 

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})\, 9.784 9.912 10.026
{\rm log}_{10}({\rm SFR}) -1.073 -0.403 0.214
{\rm log}_{10}({\rm sSFR}) -10.980 -10.308 -9.664
{\rm stellar\ age} 2.860 5.280 6.681

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.306 -0.883 -0.546
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.680 -0.785 0.138

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.173 0.313 0.500
\delta -0.783 -0.418 -0.035
\tau_1/\tau_2 0.553 0.894 1.251
Q_{PAH} 0.569 1.734 3.543
U_{min} 2.554 7.585 14.603
{\rm log}_{10}(\gamma_e)\, -2.874 -2.022 -0.929

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.695 -2.260 -1.546
{\rm log}_{10}(\tau_{AGN})\, 1.007 1.408 1.843

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.526 -0.724 -0.425
0.03-0.10 Gyr -1.268 -0.340 0.362
0.10-0.32 Gyr -0.495 0.234 0.655
0.32-1.05 Gyr -0.279 0.212 0.538
1.05-3.41 Gyr -0.313 0.120 0.382
3.41-11.07 Gyr -0.877 -0.080 0.163
11.07-12.31 Gyr -1.249 -0.169 0.377