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:J002338.44-012733.02_1
Object ID:9906620852541477
Catalog Name:decals
Catalog Release:dr9
Right ascension: 0h23m38.44s
Declination:-1d27m33.02s
Redshift:None
Photometric Redshift:0.180
 
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 20.58
Transient MWEBV processed 0.1
Host match processed 7.51
Host information processed 0.13
Host MWEBV processed 0.11
Host spectrum download not processed None
Global aperture construction processed 0.68
Global aperture photometry processed 6.82
Validate global photometry processed 18.78
Global host SED inference processed 468.08
Local aperture photometry processed 6.58
Validate local photometry processed 0.03
Local host SED inference processed 421.6
 

Imaging data


 

Spectral Energy Distribution



 

Host Galaxy Spectrum

 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.044 8.381 8.558
{\rm log}_{10}({\rm SFR}) -1.382 -0.770 -0.272
{\rm log}_{10}({\rm sSFR}) -9.926 -9.181 -8.383
{\rm stellar\ age} 0.479 4.037 6.388

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.216 -0.366 0.047
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.565 -0.445 0.203

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.379 0.792 1.338
\delta -0.453 -0.108 0.173
\tau_1/\tau_2 0.774 1.154 1.554
Q_{PAH} 1.150 2.992 5.293
U_{min} 2.995 8.143 15.778
{\rm log}_{10}(\gamma_e)\, -2.903 -1.637 -0.552

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.452 -0.588 0.041
{\rm log}_{10}(\tau_{AGN})\, 1.058 1.508 1.932

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.472 -1.045 -0.588
0.03-0.10 Gyr -1.465 -0.765 -0.153
0.10-0.33 Gyr -1.745 -0.989 -0.440
0.33-1.08 Gyr -2.816 -1.390 -0.950
1.08-3.53 Gyr -3.571 -1.721 -1.278
3.53-11.58 Gyr -4.113 -1.924 -1.404
11.58-12.87 Gyr -4.029 -1.935 -1.239

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.508 8.712 8.883
{\rm log}_{10}({\rm SFR}) -1.267 -0.764 -0.266
{\rm log}_{10}({\rm sSFR}) -10.020 -9.495 -8.839
{\rm stellar\ age} 2.017 5.530 7.450

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.547 -0.827 -0.201
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.265 0.140 0.361

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.142 0.652 1.116
\delta -0.243 0.135 0.303
\tau_1/\tau_2 0.749 1.132 1.493
Q_{PAH} 1.003 2.827 4.875
U_{min} 3.127 8.492 15.922
{\rm log}_{10}(\gamma_e)\, -2.879 -1.698 -0.640

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.425 -1.150 -0.178
{\rm log}_{10}(\tau_{AGN})\, 1.033 1.456 1.875

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.521 -1.083 -0.655
0.03-0.10 Gyr -1.278 -0.694 -0.163
0.10-0.33 Gyr -1.406 -0.777 -0.260
0.33-1.08 Gyr -1.985 -1.182 -0.784
1.08-3.53 Gyr -2.354 -1.307 -1.005
3.53-11.58 Gyr -2.525 -1.351 -1.054
11.58-12.87 Gyr -2.698 -1.370 -0.726
 

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 5.42 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 21.360 0.048 AB
SDSS_r 16.23 1.21 20.874 0.081 AB
PanSTARRS_r 14.23 0.29 21.017 0.022 AB
DES_r 19.36 0.2 20.683 0.011 AB
SDSS_i 18.89 1.65 20.709 0.095 AB
PanSTARRS_i 19.8 0.49 20.658 0.027 AB
PanSTARRS_z 20.55 1.06 20.618 0.056 AB
SDSS_z 23.14 3.57 20.489 0.167 AB
DES_z 28.16 0.76 20.276 0.029 AB
PanSTARRS_y 26.88 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):238.44
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 22.350 0.083 AB
SDSS_u 12.41 2.32 21.166 0.203 AB
SDSS_g 17.97 1.45 20.764 0.088 AB
DES_g 20.1 0.23 20.642 0.013 AB
PanSTARRS_g 19.59 0.77 20.670 0.042 AB
SDSS_r 28.58 1.73 20.260 0.066 AB
PanSTARRS_r 26.32 0.48 20.349 0.020 AB
DES_r 31.81 0.27 20.144 0.009 AB
SDSS_i 34.04 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 0.208 AB
DES_z 42.94 1.0 19.818 0.025 AB
PanSTARRS_y 40.6 3.8 19.879 0.102 AB
2MASS_J 38.46 73.14 19.043 2.065 Vega
2MASS_H 54.93 114.05 18.183 2.254 Vega
2MASS_K 10.53 147.16 19.506 15.168 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 -66.69 56.89 Vega
WISE_W4 6.97 403.03 15.172 62.808 Vega