2025aaan results

Information

Transient
Name:SN2025aaan
Right ascension: 2h31m18.37s
Declination:-20d28m13.97s
Discovery Date:Oct. 7, 2025, 10:02 a.m.
Classification:SN Ia
Redshift:0.033466
MW E(B-V):0.020
Host
Name:ESO545-027
Right ascension: 2h31m18.57s
Declination:-20d28m06.96s
Redshift:0.032920
Photometric Redshift:None
 

Cutout Download Report

Downloaded Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
PanSTARRS_g
PanSTARRS_r
PanSTARRS_i
PanSTARRS_z
PanSTARRS_y
DES_r
 GALEX_NUV
GALEX_FUV
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_g
DES_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 3.56
Transient MWEBV processed 0.07
Host match processed 5.14
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 4.38
Validate global photometry processed 9.61
Global host SED inference processed 859.87
Local aperture photometry processed 4.18
Validate local photometry processed 0.02
Local host SED inference processed 433.17
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):2h31m18.37s, -20d28m13.97s
semi major axis, semi minor axis (arcsec):3.05, 3.05
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 122.54 0.88 18.679 0.008 AB
PanSTARRS_r 206.65 0.99 18.112 0.005 AB
DES_r 222.08 0.6 18.034 0.003 AB
PanSTARRS_i 277.12 0.89 17.793 0.003 AB
PanSTARRS_z 336.47 2.41 17.583 0.008 AB
PanSTARRS_y 412.17 5.52 17.362 0.015 AB
2MASS_J 482.42 77.64 16.297 0.175 Vega
2MASS_H 289.7 130.25 16.378 0.488 Vega
2MASS_K 447.39 135.86 15.435 0.330 Vega

Aperture details

RA, DEC (J2000):2h31m18.53s, -20d28m06.53s
semi major axis, semi minor axis (arcsec):27.73, 11.01
angle (degrees, anti-clockwise from east):0.26
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_r 3635.48 5.53 14.999 0.002 AB
DES_r 4060.4 2.68 14.879 0.001 AB
PanSTARRS_i 4863.14 5.01 14.683 0.001 AB
2MASS_J 8135.69 451.19 13.229 0.060 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.049 9.213 9.364
{\rm log}_{10}({\rm SFR}) -1.498 -0.885 -0.311
{\rm log}_{10}({\rm sSFR}) -10.739 -10.121 -9.473
{\rm stellar\ age} 4.751 7.232 9.116

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.534 -0.773 -0.329
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.510 -0.229 0.206

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.365 0.815 1.214
\delta -0.514 -0.141 0.190
\tau_1/\tau_2 0.669 1.038 1.416
Q_{PAH} 0.689 2.047 4.130
U_{min} 2.637 7.642 14.787
{\rm log}_{10}(\gamma_e)\, -3.336 -2.037 -0.924

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.201 -2.477 -0.788
{\rm log}_{10}(\tau_{AGN})\, 0.954 1.439 1.956

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.446 -0.967 -0.620
0.03-0.10 Gyr -1.745 -0.863 -0.209
0.10-0.33 Gyr -1.841 -0.968 -0.393
0.33-1.09 Gyr -1.910 -1.030 -0.536
1.09-3.62 Gyr -1.727 -0.895 -0.539
3.62-11.98 Gyr -1.369 -0.751 -0.518
11.98-13.32 Gyr -1.410 -0.633 0.026

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.226 10.451 10.627
{\rm log}_{10}({\rm SFR}) -0.444 0.483 1.306
{\rm log}_{10}({\rm sSFR}) -10.906 -9.940 -9.006
{\rm stellar\ age} 3.897 7.341 11.527

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.592 -1.019 -0.453
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.595 -0.661 0.157

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.482 0.838 1.168
\delta -0.466 -0.169 0.222
\tau_1/\tau_2 0.455 0.945 1.445
Q_{PAH} 0.931 2.967 5.256
U_{min} 2.616 7.808 15.694
{\rm log}_{10}(\gamma_e)\, -3.475 -2.162 -0.706

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.596 -3.512 -1.393
{\rm log}_{10}(\tau_{AGN})\, 0.945 1.559 1.985

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.099 0.192 0.716
0.03-0.10 Gyr -0.822 0.521 1.430
0.10-0.33 Gyr -2.198 -0.134 0.819
0.33-1.09 Gyr -2.733 -0.256 0.583
1.09-3.62 Gyr -2.270 0.003 0.744
3.62-11.98 Gyr -1.286 0.284 0.685
11.98-13.32 Gyr -1.013 0.526 1.643