2025gsd

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Information

Transient

Name: AT2025gsd
Right ascension: 21h43m01.65s
Declination: -72d39m36.62s
Discovery Date: April 2, 2025, 6:42 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.040

Host

Name: 2025gsd
Right ascension: 21h43m02.16s
Declination: -72d39m35.30s
Redshift: 0.045672
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
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 0.8
Cutout download processed 3.37
Global aperture construction processed 0.15
Local aperture photometry processed 0.89
Global aperture photometry processed 0.94
Validate local photometry no valid phot 0.01
Validate global photometry processed 1.31
Host information processed 0.09
Global host SED inference processed 1134.14
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.1
Host MWEBV processed 0.11
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) = 21h43m01.65s, -72d39m36.62s
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

Data not available


Aperture details

RA, DEC (J2000) = 21h43m02.17s, -72d39m35.42s
semi major axis, semi minor axis (arcsec) = 12.21, 9.4
angle (degrees, anti-clockwise from east) = -156.62

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.08 2.09 21.631 0.280 AB
GALEX_NUV 12.42 0.94 21.165 0.082 AB
2MASS_J 11625.65 257.9 12.842 0.024 Vega
2MASS_H 14357.13 416.9 12.140 0.032 Vega
2MASS_K 13345.22 455.81 11.749 0.037 Vega
WISE_W1 5403.32 41.36 11.869 0.008 Vega
WISE_W2 3018.91 42.23 11.861 0.015 Vega
WISE_W3 793.56 122.34 11.477 0.167 Vega
WISE_W4 450.45 473.29 10.646 1.141 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})\, 10.931 11.044 11.111
{\rm log}_{10}({\rm SFR}) -2.791 -1.822 -1.077
{\rm log}_{10}({\rm sSFR}) -13.823 -12.867 -12.094
{\rm stellar\ age} 7.958 11.962 12.483

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.673 -0.394 -0.185
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.418 -0.694 0.016

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.066 0.171 0.335
\delta -0.798 -0.444 -0.020
\tau_1/\tau_2 0.331 0.818 1.312
Q_{PAH} 0.316 1.042 2.621
U_{min} 3.036 8.730 16.382
{\rm log}_{10}(\gamma_e)\, -2.937 -1.680 -0.861

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.601 -3.874 -2.906
{\rm log}_{10}(\tau_{AGN})\, 1.137 1.645 1.994

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.213 -1.852 -1.160
0.03-0.10 Gyr -4.211 -2.100 -1.068
0.10-0.33 Gyr -4.978 -2.129 -1.035
0.33-1.09 Gyr -5.211 -2.129 -0.681
1.09-3.59 Gyr -3.870 -1.541 0.136
3.59-11.83 Gyr -1.863 0.287 1.181
11.83-13.15 Gyr 1.012 2.141 2.241