2025snd

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Information

Transient

Name: AT2025snd
Right ascension: 19h20m32.20s
Declination: 51d29m06.89s
Discovery Date: July 28, 2025, 5:21 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.085

Host

Name:
Right ascension: 19h20m31.93s
Declination: 51d29m02.08s
Redshift: 0.049003
Photometric Redshift: 0.060
 

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 8.15
Cutout download processed 25.22
Global aperture construction processed 0.7
Local aperture photometry processed 5.38
Global aperture photometry processed 5.02
Validate local photometry processed 0.02
Validate global photometry processed 12.84
Host information processed 0.15
Global host SED inference processed 460.66
Local host SED inference processed 440.5
Transient information processed 0.0
Transient MWEBV processed 0.1
Host MWEBV processed 0.05
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) = 19h20m32.20s, 51d29m06.89s
semi major axis, semi minor axis (arcsec) = 2.09, 2.09
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 29.04 0.33 20.243 0.012 AB
PanSTARRS_g 33.04 0.42 20.102 0.014 AB
PanSTARRS_r 59.37 0.69 19.466 0.013 AB
PanSTARRS_i 75.26 0.81 19.209 0.012 AB
PanSTARRS_z 92.59 1.61 18.984 0.019 AB
DES_z 81.55 1.63 19.121 0.022 AB
PanSTARRS_y 109.23 5.09 18.804 0.051 AB

Aperture details

RA, DEC (J2000) = 19h20m31.92s, 51d29m02.35s
semi major axis, semi minor axis (arcsec) = 13.26, 9.49
angle (degrees, anti-clockwise from east) = -107.56

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 69.33 5.68 19.298 0.089 AB
DES_g 683.39 1.63 16.813 0.003 AB
PanSTARRS_g 709.48 2.24 16.773 0.003 AB
PanSTARRS_r 1324.81 3.7 16.095 0.003 AB
PanSTARRS_i 1758.52 4.35 15.787 0.003 AB
PanSTARRS_z 2163.76 8.64 15.562 0.004 AB
DES_z 2122.4 8.4 15.583 0.004 AB
PanSTARRS_y 2596.26 26.89 15.364 0.011 AB
2MASS_J 3052.0 255.26 14.294 0.091 Vega
2MASS_H 3714.71 386.0 13.608 0.113 Vega
2MASS_K 2679.76 434.8 13.492 0.176 Vega
WISE_W1 1574.53 30.73 13.208 0.021 Vega
WISE_W2 1029.77 33.04 13.029 0.035 Vega
WISE_W3 3361.91 229.83 9.910 0.074 Vega
WISE_W4 6247.72 681.32 7.791 0.118 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})\, 8.931 9.044 9.143
{\rm log}_{10}({\rm SFR}) -1.827 -1.206 -0.785
{\rm log}_{10}({\rm sSFR}) -10.872 -10.256 -9.812
{\rm stellar\ age} 6.746 7.944 10.654

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.638 -1.170 -0.730
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.795 -0.504 0.259

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.245 0.526 0.803
\delta -0.407 -0.024 0.253
\tau_1/\tau_2 0.711 1.079 1.427
Q_{PAH} 0.782 2.358 4.991
U_{min} 2.831 7.994 14.915
{\rm log}_{10}(\gamma_e)\, -3.091 -2.063 -0.785

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.892 -0.953 -0.383
{\rm log}_{10}(\tau_{AGN})\, 0.997 1.491 1.964

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.958 -1.295 -0.934
0.03-0.10 Gyr -2.049 -1.200 -0.706
0.10-0.33 Gyr -2.170 -1.390 -0.899
0.33-1.09 Gyr -2.292 -1.514 -1.093
1.09-3.58 Gyr -2.171 -1.296 -0.938
3.58-11.79 Gyr -1.275 -0.884 -0.714
11.79-13.10 Gyr -1.151 -0.590 0.100

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.358 10.418 10.518
{\rm log}_{10}({\rm SFR}) -0.220 0.062 0.359
{\rm log}_{10}({\rm sSFR}) -10.643 -10.341 -10.043
{\rm stellar\ age} 7.644 8.890 11.869

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.819 -0.589 -0.443
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.123 0.312 0.428

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.125 0.215 0.370
\delta -0.615 -0.205 0.153
\tau_1/\tau_2 0.601 1.019 1.462
Q_{PAH} 0.454 1.255 2.797
U_{min} 3.206 8.268 15.722
{\rm log}_{10}(\gamma_e)\, -2.648 -1.763 -0.873

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.538 -2.312 -1.681
{\rm log}_{10}(\tau_{AGN})\, 1.058 1.517 1.910

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.337 -0.048 0.181
0.03-0.10 Gyr -0.371 0.088 0.462
0.10-0.33 Gyr -1.359 -0.301 0.114
0.33-1.09 Gyr -1.880 -0.538 -0.142
1.09-3.58 Gyr -1.797 -0.440 0.096
3.58-11.79 Gyr -0.344 0.494 0.645
11.79-13.10 Gyr 0.345 1.030 1.615