2025ahat

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Information

Transient

Name: AT2025ahat
Right ascension: 15h41m16.60s
Declination: 11d27m05.36s
Discovery Date: Dec. 11, 2025, 1:36 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.032

Host

Name: SDSSJ154116.36+11270
Right ascension: 15h41m16.32s
Declination: 11d27m06.80s
Redshift: None
Photometric Redshift: 0.038
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 17.64
Transient MWEBV processed 0.1
Host match processed 4.22
Host information processed 0.05
Host MWEBV processed 0.1
Global aperture construction processed 0.63
Global aperture photometry processed 5.59
Validate global photometry processed 13.07
Global host SED inference processed 439.52
Local aperture photometry processed 5.23
Validate local photometry processed 0.02
Local host SED inference processed 453.9
 

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) = 15h41m16.60s, 11d27m05.36s
semi major axis, semi minor axis (arcsec) = 2.64, 2.64
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 49.21 2.71 19.670 0.060 AB
PanSTARRS_g 129.01 0.6 18.623 0.005 AB
SDSS_r 170.1 3.54 18.323 0.023 AB
PanSTARRS_r 168.61 0.72 18.333 0.005 AB
DES_r 186.6 1.07 18.223 0.006 AB
SDSS_i 201.76 4.06 18.138 0.022 AB
PanSTARRS_i 190.45 0.93 18.201 0.005 AB
PanSTARRS_z 198.41 1.76 18.156 0.010 AB
SDSS_z 216.67 8.19 18.060 0.041 AB
PanSTARRS_y 222.82 4.85 18.030 0.024 AB

Aperture details

RA, DEC (J2000) = 15h41m16.36s, 11d27m07.05s
semi major axis, semi minor axis (arcsec) = 10.74, 6.56
angle (degrees, anti-clockwise from east) = -55.66

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 102.2 10.09 18.876 0.107 AB
GALEX_NUV 146.1 7.05 18.488 0.052 AB
SDSS_u 184.73 7.47 18.234 0.044 AB
PanSTARRS_g 679.14 1.84 16.820 0.003 AB
SDSS_r 856.29 8.29 16.568 0.011 AB
PanSTARRS_r 888.08 2.23 16.529 0.003 AB
DES_r 931.12 2.47 16.477 0.003 AB
SDSS_i 1012.95 9.9 16.386 0.011 AB
PanSTARRS_i 1036.85 2.9 16.361 0.003 AB
PanSTARRS_z 1072.02 5.53 16.324 0.006 AB
SDSS_z 1090.85 24.68 16.306 0.025 AB
PanSTARRS_y 1208.04 15.27 16.195 0.014 AB
WISE_W1 568.05 20.07 14.315 0.038 Vega
WISE_W2 340.33 23.1 14.231 0.074 Vega
WISE_W3 908.08 106.89 11.331 0.128 Vega
WISE_W4 1692.25 543.05 9.209 0.348 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})\, 8.704 8.873 9.008
{\rm log}_{10}({\rm SFR}) -1.296 -0.851 -0.425
{\rm log}_{10}({\rm sSFR}) -10.224 -9.730 -9.242
{\rm stellar\ age} 3.309 5.810 7.464

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.815 -1.472 -0.870
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.860 -1.470 0.072

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.101 0.299 0.541
\delta -0.700 -0.335 0.044
\tau_1/\tau_2 0.776 1.121 1.457
Q_{PAH} 0.561 2.250 4.764
U_{min} 2.983 7.972 14.583
{\rm log}_{10}(\gamma_e)\, -3.156 -2.004 -0.693

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.574 -1.420 -0.503
{\rm log}_{10}(\tau_{AGN})\, 0.973 1.335 1.871

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.297 -1.018 -0.745
0.03-0.10 Gyr -1.360 -0.795 -0.329
0.10-0.33 Gyr -1.302 -0.734 -0.318
0.33-1.09 Gyr -1.426 -0.934 -0.613
1.09-3.61 Gyr -1.474 -1.031 -0.792
3.61-11.92 Gyr -1.709 -1.154 -0.868
11.92-13.24 Gyr -1.952 -1.184 -0.648

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.613 9.685 9.765
{\rm log}_{10}({\rm SFR}) -0.562 -0.397 -0.233
{\rm log}_{10}({\rm sSFR}) -10.246 -10.077 -9.917
{\rm stellar\ age} 6.212 7.161 8.284

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.361 -1.117 -0.947
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.644 -1.358 -1.071

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.074 0.127 0.209
\delta -0.089 0.194 0.339
\tau_1/\tau_2 0.543 0.897 1.277
Q_{PAH} 0.966 2.284 4.347
U_{min} 2.968 7.537 14.568
{\rm log}_{10}(\gamma_e)\, -3.127 -2.196 -1.270

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.286 -3.279 -2.413
{\rm log}_{10}(\tau_{AGN})\, 1.020 1.494 1.902

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.655 -0.506 -0.393
0.03-0.10 Gyr -0.592 -0.347 -0.135
0.10-0.33 Gyr -0.530 -0.274 -0.058
0.33-1.09 Gyr -0.642 -0.347 -0.137
1.09-3.61 Gyr -0.617 -0.341 -0.153
3.61-11.92 Gyr -0.399 -0.213 -0.091
11.92-13.24 Gyr -0.483 -0.109 0.317