2025sam

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Information

Transient

Name: AT2025sam
Right ascension: 2h41m04.47s
Declination: -25d03m10.88s
Discovery Date: July 24, 2025, 4:42 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.020

Host

Name:
Right ascension: 2h41m04.09s
Declination: -25d03m15.81s
Redshift: None
Photometric Redshift: 0.123
 

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
no valid phot
 status
Local host SED inference
Local host SED inference
not 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 7.56
Cutout download processed 15.28
Global aperture construction processed 0.65
Local aperture photometry processed 6.02
Global aperture photometry processed 5.41
Validate local photometry no valid phot 0.02
Validate global photometry processed 15.09
Host information processed 0.14
Global host SED inference processed 389.73
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.05
Host MWEBV processed 0.05
Processing status blocked 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) = 2h41m04.47s, -25d03m10.88s
semi major axis, semi minor axis (arcsec) = 0.91, 0.91
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys

Data not available


Aperture details

RA, DEC (J2000) = 2h41m04.06s, -25d03m15.58s
semi major axis, semi minor axis (arcsec) = 10.5, 7.61
angle (degrees, anti-clockwise from east) = -128.66

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 20.44 3.39 20.624 0.180 AB
GALEX_NUV 40.07 2.9 19.893 0.079 AB
DES_g 324.97 0.66 17.620 0.002 AB
PanSTARRS_g 345.77 2.05 17.553 0.006 AB
PanSTARRS_r 611.45 3.37 16.934 0.006 AB
DES_r 617.87 1.04 16.923 0.002 AB
PanSTARRS_i 786.14 3.18 16.661 0.004 AB
PanSTARRS_z 950.76 6.19 16.455 0.007 AB
DES_z 991.26 3.76 16.410 0.004 AB
PanSTARRS_y 1258.53 13.94 16.150 0.012 AB
2MASS_J 1654.33 239.19 14.959 0.157 Vega
2MASS_H 1769.0 394.99 14.413 0.242 Vega
2MASS_K 1547.49 429.53 14.088 0.301 Vega
WISE_W1 892.9 16.89 13.824 0.021 Vega
WISE_W3 1216.58 76.67 11.013 0.068 Vega
WISE_W4 620.18 426.61 10.299 0.747 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Data not available


Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.788 10.829 10.870
{\rm log}_{10}({\rm SFR}) 0.485 0.679 0.873
{\rm log}_{10}({\rm sSFR}) -10.362 -10.168 -9.954
{\rm stellar\ age} 6.367 6.978 8.031

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.120 0.002 0.100
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.889 -0.471 -0.196

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.135 0.182 0.271
\delta -0.887 -0.654 -0.328
\tau_1/\tau_2 0.872 1.183 1.484
Q_{PAH} 0.399 1.356 3.011
U_{min} 2.421 6.930 12.820
{\rm log}_{10}(\gamma_e)\, -3.118 -2.021 -1.397

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.406 -3.442 -2.102
{\rm log}_{10}(\tau_{AGN})\, 1.020 1.487 1.882

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.374 0.530 0.658
0.03-0.10 Gyr 0.485 0.741 0.971
0.10-0.32 Gyr 0.576 0.762 0.937
0.32-1.05 Gyr 0.379 0.626 0.809
1.05-3.39 Gyr 0.425 0.709 0.902
3.39-10.96 Gyr 0.848 0.998 1.081
10.96-12.18 Gyr 0.670 1.122 1.545