2025xah

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Information

Transient

Name: AT2025xah
Right ascension: 8h29m42.88s
Declination: 35d35m37.03s
Discovery Date: Sept. 6, 2025, 12:12 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.039

Host

Name: SDSSJ082942.63+35354
Right ascension: 8h29m42.72s
Declination: 35d35m40.02s
Redshift: None
Photometric Redshift: 0.046
 

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 4.88
Cutout download processed 20.75
Global aperture construction processed 0.65
Local aperture photometry processed 5.26
Global aperture photometry processed 4.67
Validate local photometry processed 0.02
Validate global photometry processed 12.64
Host information processed 0.17
Global host SED inference processed 408.24
Local host SED inference processed 447.92
Transient information processed 0.0
Transient MWEBV processed 0.04
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) = 8h29m42.88s, 35d35m37.03s
semi major axis, semi minor axis (arcsec) = 2.23, 2.23
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 13.49 0.31 21.075 0.025 AB
PanSTARRS_g 14.13 0.5 21.024 0.038 AB
PanSTARRS_r 18.38 0.61 20.739 0.036 AB
PanSTARRS_i 22.74 0.5 20.508 0.024 AB
PanSTARRS_z 22.53 1.23 20.518 0.059 AB
DES_z 20.06 0.81 20.644 0.044 AB
PanSTARRS_y 28.04 4.1 20.281 0.159 AB

Aperture details

RA, DEC (J2000) = 8h29m42.62s, 35d35m40.17s
semi major axis, semi minor axis (arcsec) = 10.82, 4.15
angle (degrees, anti-clockwise from east) = -2.42

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 28.63 5.39 20.258 0.204 AB
GALEX_NUV 35.17 2.77 20.034 0.085 AB
DES_g 138.39 0.97 18.547 0.008 AB
PanSTARRS_g 150.46 1.51 18.456 0.011 AB
PanSTARRS_r 204.04 1.84 18.126 0.010 AB
PanSTARRS_i 248.18 1.49 17.913 0.007 AB
PanSTARRS_z 269.89 3.69 17.822 0.015 AB
DES_z 228.18 2.63 18.004 0.013 AB
PanSTARRS_y 324.93 12.25 17.621 0.041 AB
2MASS_J 523.1 146.52 16.209 0.304 Vega
2MASS_H 318.23 223.97 16.276 0.764 Vega
2MASS_K -344.64 248.22 Vega
WISE_W1 132.33 15.84 15.897 0.130 Vega
WISE_W2 62.08 16.81 16.079 0.294 Vega
WISE_W3 -112.29 79.9 Vega
WISE_W4 487.71 522.57 10.560 1.163 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})\, 7.843 8.088 8.218
{\rm log}_{10}({\rm SFR}) -1.949 -1.325 -0.576
{\rm log}_{10}({\rm sSFR}) -10.111 -9.463 -8.386
{\rm stellar\ age} 1.687 5.638 7.413

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.795 -1.458 -0.950
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.719 -0.740 0.167

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.150 0.465 0.951
\delta -0.500 -0.073 0.215
\tau_1/\tau_2 0.733 1.108 1.470
Q_{PAH} 0.859 2.357 4.693
U_{min} 2.867 8.087 15.427
{\rm log}_{10}(\gamma_e)\, -2.990 -1.990 -0.901

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.483 -0.509 -0.004
{\rm log}_{10}(\tau_{AGN})\, 1.148 1.440 1.851

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.173 -1.676 -1.246
0.03-0.10 Gyr -1.977 -1.261 -0.434
0.10-0.33 Gyr -2.522 -1.666 -1.113
0.33-1.09 Gyr -3.192 -1.952 -1.488
1.09-3.59 Gyr -3.087 -1.928 -1.605
3.59-11.83 Gyr -3.514 -1.987 -1.659
11.83-13.15 Gyr -3.412 -2.009 -1.445

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.118 9.238 9.349
{\rm log}_{10}({\rm SFR}) -0.627 -0.383 -0.137
{\rm log}_{10}({\rm sSFR}) -9.858 -9.616 -9.337
{\rm stellar\ age} 6.107 7.189 8.720

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.578 -1.126 -0.722
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.021 0.271 0.412

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.129 0.265 0.426
\delta -0.215 0.115 0.302
\tau_1/\tau_2 0.569 0.916 1.284
Q_{PAH} 0.752 2.157 4.214
U_{min} 2.979 8.354 15.680
{\rm log}_{10}(\gamma_e)\, -2.678 -1.724 -0.683

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.263 -3.315 -2.185
{\rm log}_{10}(\tau_{AGN})\, 1.042 1.563 1.947

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.573 -1.021 -0.725
0.03-0.10 Gyr -0.552 -0.252 0.013
0.10-0.33 Gyr -1.156 -0.617 -0.300
0.33-1.09 Gyr -1.337 -0.886 -0.633
1.09-3.59 Gyr -1.352 -0.890 -0.652
3.59-11.83 Gyr -0.975 -0.695 -0.529
11.83-13.15 Gyr -1.045 -0.553 0.034