2025ahnj results

Information

Transient
Name:SN2025ahnj
Right ascension: 0h23m38.50s
Declination:-1d27m32.77s
Discovery Date:Dec. 17, 2025, 6:02 a.m.
Classification:SN Ibn
Redshift:0.067000
MW E(B-V):0.023
Host
Name:
Right ascension: 0h23m38.44s
Declination:-1d27m33.02s
Redshift:None
Photometric Redshift:0.180
 

Cutout Download Report

Downloaded Unavailable
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_z
 DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 13.91
Transient MWEBV processed 0.11
Host match processed 7.53
Host information processed 0.13
Host MWEBV processed 0.06
Global aperture construction processed 0.64
Global aperture photometry processed 6.86
Validate global photometry processed 1.59
Global host SED inference processed 426.99
Local aperture photometry processed 6.94
Validate local photometry processed 0.03
Local host SED inference processed 427.82
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):0h23m38.50s, -1d27m32.77s
semi major axis, semi minor axis (arcsec):1.56, 1.56
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 5.41 1.35 22.066 0.271 AB
SDSS_g 9.93 0.98 21.408 0.108 AB
DES_g 11.27 0.17 21.270 0.016 AB
PanSTARRS_g 10.37 0.46 21.361 0.048 AB
SDSS_r 16.22 1.21 20.875 0.081 AB
PanSTARRS_r 14.22 0.29 21.018 0.022 AB
DES_r 19.35 0.2 20.683 0.011 AB
SDSS_i 18.89 1.65 20.709 0.095 AB
PanSTARRS_i 19.79 0.49 20.659 0.027 AB
PanSTARRS_z 20.54 1.06 20.618 0.056 AB
SDSS_z 23.15 3.57 20.489 0.167 AB
DES_z 30.43 2.2 20.192 0.078 AB
PanSTARRS_y 26.86 2.4 20.327 0.097 AB

Aperture details

RA, DEC (J2000):0h23m38.43s, -1d27m32.74s
semi major axis, semi minor axis (arcsec):2.86, 2.38
angle (degrees, anti-clockwise from east):-121.52
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 3.34 0.35 22.591 0.114 AB
GALEX_NUV 4.17 0.32 22.349 0.083 AB
SDSS_u 12.41 2.32 21.166 0.203 AB
SDSS_g 17.97 1.45 20.763 0.088 AB
DES_g 19.23 0.23 20.690 0.013 AB
PanSTARRS_g 19.59 0.77 20.670 0.042 AB
SDSS_r 28.58 1.74 20.260 0.066 AB
PanSTARRS_r 26.32 0.48 20.349 0.020 AB
DES_r 30.36 0.27 20.194 0.010 AB
SDSS_i 34.05 2.52 20.070 0.080 AB
PanSTARRS_i 36.31 0.78 20.000 0.023 AB
PanSTARRS_z 36.04 1.7 20.008 0.051 AB
SDSS_z 30.36 5.83 20.194 0.209 AB
DES_z 43.59 2.91 19.802 0.073 AB
PanSTARRS_y 40.6 3.8 19.879 0.102 AB
2MASS_J 38.45 73.15 19.043 2.066 Vega
2MASS_H 54.94 114.07 18.183 2.254 Vega
2MASS_K 10.49 147.18 19.510 15.232 Vega
WISE_W1 18.9 9.68 18.010 0.556 Vega
WISE_W2 12.91 12.43 17.784 1.045 Vega
WISE_W3 -66.7 56.89 Vega
WISE_W4 8.1 403.08 15.008 54.004 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.253 8.479 8.626
{\rm log}_{10}({\rm SFR}) -1.512 -0.994 -0.479
{\rm log}_{10}({\rm sSFR}) -10.068 -9.521 -8.830
{\rm stellar\ age} 2.045 5.397 7.063

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.381 -0.543 -0.062
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.513 -0.178 0.220

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.240 0.681 1.204
\delta -0.463 -0.041 0.244
\tau_1/\tau_2 0.731 1.088 1.442
Q_{PAH} 0.964 2.743 5.116
U_{min} 3.071 7.790 14.895
{\rm log}_{10}(\gamma_e)\, -2.824 -1.692 -0.613

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.702 -0.542 0.110
{\rm log}_{10}(\tau_{AGN})\, 1.067 1.533 1.935

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.655 -1.177 -0.729
0.03-0.10 Gyr -1.625 -0.982 -0.386
0.10-0.33 Gyr -1.745 -1.176 -0.606
0.33-1.08 Gyr -1.956 -1.326 -0.945
1.08-3.53 Gyr -2.268 -1.479 -1.189
3.53-11.58 Gyr -2.617 -1.581 -1.285
11.58-12.87 Gyr -2.756 -1.617 -1.054

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.526 8.738 8.896
{\rm log}_{10}({\rm SFR}) -1.167 -0.693 -0.266
{\rm log}_{10}({\rm sSFR}) -9.955 -9.447 -8.902
{\rm stellar\ age} 3.507 6.169 7.683

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.456 -0.711 -0.140
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.366 0.120 0.347

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.167 0.587 1.016
\delta -0.191 0.140 0.306
\tau_1/\tau_2 0.791 1.147 1.491
Q_{PAH} 1.082 3.070 5.190
U_{min} 2.952 8.229 15.136
{\rm log}_{10}(\gamma_e)\, -2.726 -1.642 -0.665

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.004 -0.927 -0.250
{\rm log}_{10}(\tau_{AGN})\, 1.022 1.457 1.824

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.446 -1.054 -0.654
0.03-0.10 Gyr -1.149 -0.619 -0.162
0.10-0.33 Gyr -1.497 -0.923 -0.439
0.33-1.08 Gyr -1.945 -1.260 -0.864
1.08-3.53 Gyr -2.006 -1.300 -1.017
3.53-11.58 Gyr -1.949 -1.265 -1.013
11.58-12.87 Gyr -2.100 -1.217 -0.652