2025ysu

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Information

Transient

Name: AT2025ysu
Right ascension: 2h46m11.96s
Declination: 20d10m42.65s
Discovery Date: Sept. 27, 2025, 12:43 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.093

Host

Name:
Right ascension: 2h46m12.17s
Declination: 20d10m44.89s
Redshift: None
Photometric Redshift: 0.078
 

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 5.53
Cutout download processed 15.78
Global aperture construction processed 0.67
Local aperture photometry processed 5.1
Global aperture photometry processed 5.18
Validate local photometry processed 0.02
Validate global photometry processed 14.54
Host information processed 0.11
Global host SED inference processed 512.38
Local host SED inference processed 469.11
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.04
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) = 2h46m11.96s, 20d10m42.65s
semi major axis, semi minor axis (arcsec) = 1.35, 1.35
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 7.4 0.32 21.727 0.047 AB
SDSS_r 14.75 1.14 20.978 0.084 AB
PanSTARRS_r 13.11 0.52 21.106 0.043 AB
SDSS_i 18.72 1.48 20.719 0.086 AB
PanSTARRS_i 17.95 0.46 20.765 0.028 AB
PanSTARRS_z 20.88 1.06 20.601 0.055 AB
SDSS_z 22.61 4.04 20.514 0.194 AB
PanSTARRS_y 26.33 2.18 20.349 0.090 AB

Aperture details

RA, DEC (J2000) = 2h46m12.16s, 20d10m45.00s
semi major axis, semi minor axis (arcsec) = 6.99, 6.05
angle (degrees, anti-clockwise from east) = -132.81

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 16.2 4.04 20.876 0.271 AB
GALEX_NUV 21.73 3.43 20.557 0.171 AB
SDSS_u 42.07 4.94 19.840 0.128 AB
SDSS_g 114.64 3.29 18.752 0.031 AB
PanSTARRS_g 135.39 1.55 18.571 0.012 AB
SDSS_r 234.89 4.85 17.973 0.022 AB
PanSTARRS_r 221.12 2.48 18.038 0.012 AB
SDSS_i 320.43 6.67 17.636 0.023 AB
PanSTARRS_i 325.36 2.22 17.619 0.007 AB
PanSTARRS_z 376.57 5.07 17.460 0.015 AB
SDSS_z 343.62 19.27 17.560 0.061 AB
PanSTARRS_y 473.15 10.44 17.212 0.024 AB
2MASS_J 445.45 143.35 16.383 0.349 Vega
2MASS_H 857.72 248.94 15.199 0.315 Vega
2MASS_K 251.07 288.09 16.063 1.246 Vega
WISE_W1 230.64 13.36 15.294 0.063 Vega
WISE_W2 149.86 15.56 15.122 0.113 Vega
WISE_W3 510.65 84.9 11.956 0.181 Vega
WISE_W4 419.82 522.03 10.722 1.350 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})\, 8.560 8.762 8.910
{\rm log}_{10}({\rm SFR}) -1.903 -1.276 -0.308
{\rm log}_{10}({\rm sSFR}) -10.720 -10.063 -8.952
{\rm stellar\ age} 1.994 6.142 7.741

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.532 -0.849 -0.242
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.450 -0.674 0.089

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.303 0.779 1.477
\delta -0.303 0.042 0.273
\tau_1/\tau_2 0.688 1.070 1.456
Q_{PAH} 0.836 2.554 5.205
U_{min} 3.227 8.890 16.656
{\rm log}_{10}(\gamma_e)\, -2.697 -1.538 -0.488

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.729 -0.365 0.204
{\rm log}_{10}(\tau_{AGN})\, 1.022 1.509 1.987

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.356 -1.573 -0.928
0.03-0.10 Gyr -2.046 -1.262 -0.228
0.10-0.33 Gyr -2.160 -1.331 -0.541
0.33-1.07 Gyr -2.443 -1.362 -0.773
1.07-3.50 Gyr -2.743 -1.259 -0.953
3.50-11.45 Gyr -2.783 -1.219 -0.949
11.45-12.72 Gyr -2.854 -1.259 -0.636

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.027 10.091 10.172
{\rm log}_{10}({\rm SFR}) -0.270 -0.049 0.183
{\rm log}_{10}({\rm sSFR}) -10.385 -10.150 -9.908
{\rm stellar\ age} 7.693 9.312 11.678

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.640 -0.494 -0.373
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.000 0.148 0.290

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.022 0.059 0.126
\delta -0.722 -0.329 0.080
\tau_1/\tau_2 0.967 1.379 1.748
Q_{PAH} 0.722 1.908 3.584
U_{min} 2.625 7.718 14.866
{\rm log}_{10}(\gamma_e)\, -2.270 -1.280 -0.477

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.285 -3.103 -1.956
{\rm log}_{10}(\tau_{AGN})\, 1.099 1.556 1.910

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.537 -0.382 -0.255
0.03-0.10 Gyr -0.217 0.052 0.311
0.10-0.33 Gyr -1.140 -0.511 -0.161
0.33-1.07 Gyr -1.815 -0.966 -0.548
1.07-3.50 Gyr -1.799 -0.929 -0.428
3.50-11.45 Gyr -0.844 0.119 0.292
11.45-12.72 Gyr 0.219 0.884 1.289