2025sgm

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Information

Transient

Name: AT2025sgm
Right ascension: 0h53m14.39s
Declination: -3d37m22.82s
Discovery Date: July 24, 2025, 11:46 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.042

Host

Name: 173070
Right ascension: 0h53m14.49s
Declination: -3d37m21.62s
Redshift: 0.052119
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 4.1
Cutout download processed 37.89
Global aperture construction processed 0.64
Local aperture photometry processed 6.68
Global aperture photometry processed 5.63
Validate local photometry processed 0.03
Validate global photometry processed 16.91
Host information processed 0.16
Global host SED inference processed 478.87
Local host SED inference processed 520.29
Transient information processed 0.0
Transient MWEBV processed 0.09
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) = 0h53m14.39s, -3d37m22.82s
semi major axis, semi minor axis (arcsec) = 1.97, 1.97
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 94.5 2.96 18.961 0.034 AB
SDSS_g 545.89 6.11 17.057 0.012 AB
DES_g 540.06 0.66 17.069 0.001 AB
PanSTARRS_g 608.12 0.72 16.940 0.001 AB
SDSS_r 1258.66 9.26 16.150 0.008 AB
PanSTARRS_r 1198.48 0.76 16.203 0.001 AB
DES_r 1363.85 1.32 16.063 0.001 AB
SDSS_i 1821.67 11.21 15.749 0.007 AB
PanSTARRS_i 1811.29 0.94 15.755 0.001 AB
PanSTARRS_z 2221.18 1.78 15.534 0.001 AB
SDSS_z 2369.05 13.95 15.464 0.006 AB
DES_z 2495.24 4.56 15.407 0.002 AB
PanSTARRS_y 2698.61 3.82 15.322 0.002 AB

Aperture details

RA, DEC (J2000) = 0h53m14.48s, -3d37m21.67s
semi major axis, semi minor axis (arcsec) = 13.82, 4.68
angle (degrees, anti-clockwise from east) = -152.36

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 2.24 0.5 23.026 0.242 AB
GALEX_NUV 11.62 0.66 21.237 0.062 AB
DES_g 1426.1 1.12 16.015 0.001 AB
PanSTARRS_g 1787.17 2.08 15.770 0.001 AB
SDSS_r 3523.58 15.95 15.033 0.005 AB
PanSTARRS_r 3508.68 2.17 15.037 0.001 AB
DES_r 3225.74 2.09 15.128 0.001 AB
SDSS_i 5107.66 19.87 14.629 0.004 AB
PanSTARRS_i 5082.12 2.69 14.635 0.001 AB
PanSTARRS_z 6426.85 5.63 14.380 0.001 AB
SDSS_z 6705.98 32.21 14.334 0.005 AB
DES_z 5787.6 7.09 14.494 0.001 AB
2MASS_J 9851.82 186.56 13.021 0.021 Vega
2MASS_H 12126.29 291.41 12.323 0.026 Vega
2MASS_K 10945.8 360.51 11.964 0.036 Vega
WISE_W1 4381.2 41.72 12.097 0.010 Vega
WISE_W2 2507.95 45.82 12.063 0.020 Vega
WISE_W3 733.43 142.82 11.563 0.211 Vega
WISE_W4 1854.7 748.9 9.109 0.438 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})\, 10.160 10.321 10.470
{\rm log}_{10}({\rm SFR}) -0.664 0.304 0.819
{\rm log}_{10}({\rm sSFR}) -11.057 -9.992 -9.352
{\rm stellar\ age} 3.990 6.164 7.928

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.365 -0.859 -0.557
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.005 0.282 0.428

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.586 0.850 1.116
\delta -0.940 -0.828 -0.691
\tau_1/\tau_2 0.679 1.039 1.385
Q_{PAH} 0.600 2.536 5.160
U_{min} 3.039 8.062 14.941
{\rm log}_{10}(\gamma_e)\, -2.950 -1.666 -0.505

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.261 -2.979 -1.472
{\rm log}_{10}(\tau_{AGN})\, 1.063 1.543 1.967

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.457 0.137 0.374
0.03-0.10 Gyr -1.110 0.333 0.932
0.10-0.33 Gyr -0.941 0.534 1.027
0.33-1.08 Gyr -0.878 0.375 0.711
1.08-3.57 Gyr -0.196 0.413 0.666
3.57-11.75 Gyr -0.306 0.297 0.601
11.75-13.06 Gyr -0.505 0.343 0.946

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.946 11.070 11.114
{\rm log}_{10}({\rm SFR}) -3.233 -1.761 -1.054
{\rm log}_{10}({\rm sSFR}) -14.298 -12.807 -12.082
{\rm stellar\ age} 7.842 12.021 12.402

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.920 -0.724 -0.592
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.595 -0.811 0.018

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.191 0.298 0.425
\delta -0.805 -0.564 -0.274
\tau_1/\tau_2 0.403 0.830 1.289
Q_{PAH} 0.291 0.868 2.075
U_{min} 3.346 9.387 16.992
{\rm log}_{10}(\gamma_e)\, -3.157 -1.886 -1.256

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.432 -3.655 -2.761
{\rm log}_{10}(\tau_{AGN})\, 1.011 1.500 1.899

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.749 -1.783 -0.961
0.03-0.10 Gyr -4.751 -2.202 -1.125
0.10-0.33 Gyr -5.522 -2.334 -1.032
0.33-1.08 Gyr -5.504 -2.225 -0.601
1.08-3.57 Gyr -3.861 -1.644 0.232
3.57-11.75 Gyr -1.860 0.126 1.207
11.75-13.06 Gyr 0.994 2.180 2.252