2025osn

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Information

Transient

Name: AT2025osn
Right ascension: 2h05m45.35s
Declination: 46d58m12.61s
Discovery Date: June 17, 2025, 11:30 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.099

Host

Name:
Right ascension: 2h05m46.76s
Declination: 46d58m13.57s
Redshift: 0.052390
Photometric Redshift:
 

Processing Status

Cutout download
 Cutout download
processed
 status
Transient information
Transient information
processed
 status
Transient MWEBV
Transient MWEBV
processed
 status
Host match
 Host match
processed
 status
Host information
Host information
processed
 status
Local aperture photometry
 Local aperture photometry
processed
 status
Validate local photometry
 Validate local photometry
processed
 status
Local host SED inference
Local host SED inference
processed
 status
Host MWEBV
Host MWEBV
processed
 status
Global host SED inference
Global host SED inference
processed
 status
Validate global photometry
Validate global photometr...
processed
 status
Global aperture construction
 Global aperture construct...
processed
 status
Global aperture photometry
 Global aperture photometr...
processed
 status
Task Name Status Time taken (s) Warning Flag
Host match processed 5.57
Cutout download processed 42.06
Global aperture construction processed 0.69
Local aperture photometry processed 5.64
Global aperture photometry processed 4.99
Validate local photometry processed 0.02
Validate global photometry processed 15.49
Host information processed 0.14
Global host SED inference processed 594.24
Local host SED inference processed 576.85
Transient information processed 0.0
Transient MWEBV processed 0.09
Host MWEBV processed 0.1
Processing status completed N/A N/A
 

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) = 2h05m45.35s, 46d58m12.61s
semi major axis, semi minor axis (arcsec) = 1.96, 1.96
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 3.17 2.44 22.648 0.836 AB
SDSS_g 1.16 1.11 23.740 1.037 AB
PanSTARRS_g 2.19 0.51 23.049 0.251 AB
SDSS_r 4.53 1.5 22.259 0.360 AB
PanSTARRS_r 0.16 0.82 25.909 5.679 AB
SDSS_i 5.26 2.17 22.098 0.448 AB
PanSTARRS_i 4.55 1.01 22.254 0.240 AB
PanSTARRS_z 4.55 1.76 22.254 0.419 AB
SDSS_z 3.82 6.96 22.444 1.976 AB
PanSTARRS_y 10.0 4.87 21.400 0.529 AB

Aperture details

RA, DEC (J2000) = 2h05m46.76s, 46d58m13.75s
semi major axis, semi minor axis (arcsec) = 9.4, 8.04
angle (degrees, anti-clockwise from east) = -169.35

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 25.83 5.15 20.370 0.217 AB
GALEX_NUV 63.37 4.16 19.395 0.071 AB
SDSS_u 190.88 11.08 18.198 0.063 AB
SDSS_g 770.56 8.45 16.683 0.012 AB
PanSTARRS_g 905.57 2.31 16.508 0.003 AB
SDSS_r 1729.54 12.29 15.805 0.008 AB
PanSTARRS_r 1804.76 3.6 15.759 0.002 AB
SDSS_i 2620.93 15.99 15.354 0.007 AB
PanSTARRS_i 2803.59 4.63 15.281 0.002 AB
PanSTARRS_z 3294.5 7.9 15.106 0.003 AB
SDSS_z 3407.92 34.18 15.069 0.011 AB
PanSTARRS_y 3943.99 21.26 14.910 0.006 AB
2MASS_J 5330.84 220.03 13.688 0.045 Vega
2MASS_H 7621.26 358.12 12.827 0.051 Vega
2MASS_K 7891.05 348.79 12.319 0.048 Vega
WISE_W1 3251.25 45.0 12.421 0.015 Vega
WISE_W2 2564.54 41.61 12.038 0.018 Vega
WISE_W3 2614.33 118.55 10.183 0.049 Vega
WISE_W4 4485.01 735.87 8.151 0.178 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.076 7.805 8.227
{\rm log}_{10}({\rm SFR}) -1.689 -1.178 -0.804
{\rm log}_{10}({\rm sSFR}) -9.742 -8.912 -7.999
{\rm stellar\ age} 0.202 5.453 7.732

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.257 -0.319 0.050
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.590 -0.572 0.122

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.973 1.560 2.166
\delta -0.214 0.065 0.279
\tau_1/\tau_2 0.601 0.995 1.431
Q_{PAH} 0.595 2.217 4.779
U_{min} 3.141 8.739 16.026
{\rm log}_{10}(\gamma_e)\, -2.938 -1.586 -0.425

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.659 -1.134 0.117
{\rm log}_{10}(\tau_{AGN})\, 1.023 1.495 1.948

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.521 -0.845 -0.439
0.03-0.10 Gyr -3.678 -1.964 -1.085
0.10-0.33 Gyr -5.335 -2.473 -1.566
0.33-1.08 Gyr -6.160 -2.640 -1.802
1.08-3.57 Gyr -6.000 -2.604 -1.820
3.57-11.75 Gyr -5.890 -2.463 -1.718
11.75-13.06 Gyr -5.850 -2.476 -1.469

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.741 10.808 10.866
{\rm log}_{10}({\rm SFR}) -0.183 0.089 0.359
{\rm log}_{10}({\rm sSFR}) -11.025 -10.717 -10.437
{\rm stellar\ age} 8.294 10.878 12.268

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.512 -0.335 -0.191
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.930 -1.742 0.184

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.164 0.264 0.395
\delta -0.630 -0.284 0.009
\tau_1/\tau_2 0.460 0.882 1.349
Q_{PAH} 0.090 0.302 0.643
U_{min} 2.737 6.397 12.552
{\rm log}_{10}(\gamma_e)\, -3.674 -3.155 -2.574

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.636 -1.505 -1.392
{\rm log}_{10}(\tau_{AGN})\, 0.871 1.028 1.184

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.035 0.277 0.491
0.03-0.10 Gyr -1.063 -0.094 0.356
0.10-0.33 Gyr -2.495 -0.672 -0.075
0.33-1.08 Gyr -3.385 -1.094 -0.393
1.08-3.57 Gyr -2.575 -0.865 -0.111
3.57-11.75 Gyr -0.682 0.596 0.979
11.75-13.06 Gyr 1.055 1.777 1.988