2025ahnn

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Information

Transient

Name: AT2025ahnn
Right ascension: 23h27m05.86s
Declination: -10d33m24.46s
Discovery Date: Dec. 17, 2025, 4:23 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.027

Host

Name: 976732
Right ascension: 23h27m05.93s
Declination: -10d33m24.97s
Redshift: 0.080662
Photometric Redshift:
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 7.16
Transient MWEBV processed 0.06
Host match processed 4.18
Host information processed 0.06
Host MWEBV processed 0.11
Global aperture construction processed 0.89
Global aperture photometry processed 6.14
Validate global photometry processed 2.38
Global host SED inference processed 481.25
Local aperture photometry processed 5.97
Validate local photometry processed 0.02
Local host SED inference processed 541.31
 

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) = 23h27m05.86s, -10d33m24.46s
semi major axis, semi minor axis (arcsec) = 1.32, 1.32
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 93.89 0.66 18.968 0.008 AB
PanSTARRS_g 101.37 0.38 18.885 0.004 AB
PanSTARRS_r 239.77 0.52 17.951 0.002 AB
DES_r 245.69 1.15 17.924 0.005 AB
PanSTARRS_i 380.52 0.57 17.449 0.002 AB
PanSTARRS_z 521.68 1.04 17.106 0.002 AB
DES_z 520.49 4.01 17.109 0.008 AB
PanSTARRS_y 567.73 2.12 17.015 0.004 AB

Aperture details

RA, DEC (J2000) = 23h27m05.90s, -10d33m24.48s
semi major axis, semi minor axis (arcsec) = 8.69, 5.57
angle (degrees, anti-clockwise from east) = -16.31

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.84 0.41 23.237 0.241 AB
GALEX_NUV 2.86 0.45 22.761 0.169 AB
DES_g 366.68 1.4 17.489 0.004 AB
PanSTARRS_g 363.41 1.69 17.499 0.005 AB
PanSTARRS_r 810.93 2.2 16.628 0.003 AB
DES_r 884.12 2.27 16.534 0.003 AB
PanSTARRS_i 1197.2 2.57 16.205 0.002 AB
PanSTARRS_z 1556.52 4.91 15.920 0.003 AB
DES_z 1668.27 7.38 15.844 0.005 AB
PanSTARRS_y 1878.45 10.81 15.716 0.006 AB
2MASS_J 2337.51 155.02 14.583 0.072 Vega
2MASS_H 2972.97 238.3 13.849 0.087 Vega
2MASS_K 2767.01 314.64 13.457 0.123 Vega
WISE_W1 1179.38 23.01 13.522 0.021 Vega
WISE_W2 648.3 24.77 13.532 0.041 Vega
WISE_W3 43.07 76.29 14.641 1.923 Vega
WISE_W4 132.62 491.42 11.973 4.023 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})\, 10.303 10.421 10.563
{\rm log}_{10}({\rm SFR}) -2.460 -0.944 -0.208
{\rm log}_{10}({\rm sSFR}) -13.076 -11.394 -10.598
{\rm stellar\ age} 7.289 8.724 11.962

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.682 -1.204 -0.759
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.507 -0.796 -0.004

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.717 1.062 1.342
\delta -0.595 -0.351 -0.052
\tau_1/\tau_2 0.518 0.962 1.383
Q_{PAH} 0.696 2.464 5.315
U_{min} 3.091 8.997 16.475
{\rm log}_{10}(\gamma_e)\, -3.371 -1.916 -0.602

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.483 -1.388 -0.297
{\rm log}_{10}(\tau_{AGN})\, 0.932 1.377 1.898

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.205 -1.172 -0.413
0.03-0.10 Gyr -3.338 -1.100 -0.145
0.10-0.33 Gyr -3.811 -1.195 -0.167
0.33-1.07 Gyr -3.993 -1.224 -0.190
1.07-3.49 Gyr -3.365 -0.916 0.204
3.49-11.42 Gyr -1.525 0.411 0.665
11.42-12.69 Gyr 0.085 1.079 1.660

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.756 10.868 10.913
{\rm log}_{10}({\rm SFR}) -1.983 -1.143 -0.452
{\rm log}_{10}({\rm sSFR}) -12.872 -12.003 -11.303
{\rm stellar\ age} 7.994 11.807 12.053

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.918 -0.661 -0.504
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.473 -0.418 0.241

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.208 0.330 0.522
\delta -0.837 -0.616 -0.374
\tau_1/\tau_2 0.562 1.014 1.456
Q_{PAH} 0.816 2.575 4.845
U_{min} 3.009 9.201 17.188
{\rm log}_{10}(\gamma_e)\, -2.128 -0.910 -0.276

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.479 -3.517 -2.387
{\rm log}_{10}(\tau_{AGN})\, 1.061 1.604 1.977

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.570 -1.270 -0.593
0.03-0.10 Gyr -3.132 -1.290 -0.384
0.10-0.33 Gyr -4.077 -1.600 -0.488
0.33-1.07 Gyr -5.247 -2.092 -0.632
1.07-3.49 Gyr -4.001 -1.669 -0.226
3.49-11.42 Gyr -2.093 -0.179 1.002
11.42-12.69 Gyr 1.059 2.004 2.060