2025gsn

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Information

Transient

Name: AT2025gsn
Right ascension: 12h55m30.01s
Declination: 45d24m50.80s
Discovery Date: April 4, 2025, 1:43 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.024

Host

Name: 2025gsn
Right ascension: 12h55m29.40s
Declination: 45d24m49.87s
Redshift: 0.150961
Photometric Redshift: 0.121
 

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 1.77
Cutout download processed 14.58
Global aperture construction processed 0.65
Local aperture photometry processed 5.3
Global aperture photometry processed 5.55
Validate local photometry no valid phot 0.02
Validate global photometry processed 16.57
Host information processed 0.08
Global host SED inference processed 603.93
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.06
Host MWEBV processed 0.06
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) = 12h55m30.01s, 45d24m50.80s
semi major axis, semi minor axis (arcsec) = 0.76, 0.76
angle (degrees, anti-clockwise from east) = 0.0

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

Aperture details

RA, DEC (J2000) = 12h55m29.38s, 45d24m49.96s
semi major axis, semi minor axis (arcsec) = 9.91, 6.46
angle (degrees, anti-clockwise from east) = -78.43

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 21.08 3.46 20.590 0.178 AB
GALEX_NUV 38.63 2.91 19.933 0.082 AB
SDSS_u 87.74 5.94 19.042 0.073 AB
SDSS_g 218.32 4.4 18.052 0.022 AB
PanSTARRS_g 244.36 1.94 17.930 0.009 AB
SDSS_r 423.93 6.16 17.332 0.016 AB
PanSTARRS_r 429.15 2.31 17.318 0.006 AB
SDSS_i 607.77 8.33 16.941 0.015 AB
PanSTARRS_i 585.95 2.77 16.980 0.005 AB
PanSTARRS_z 707.99 5.31 16.775 0.008 AB
SDSS_z 820.49 18.93 16.615 0.025 AB
PanSTARRS_y 827.0 12.12 16.606 0.016 AB
2MASS_J 864.21 198.45 15.664 0.249 Vega
2MASS_H 581.67 315.62 15.621 0.589 Vega
2MASS_K 865.82 303.9 14.719 0.381 Vega
WISE_W1 514.29 18.86 14.423 0.040 Vega
WISE_W2 374.53 20.87 14.127 0.060 Vega
WISE_W3 932.94 78.65 11.301 0.092 Vega
WISE_W4 57.39 371.88 12.883 7.036 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.791 10.841 10.931
{\rm log}_{10}({\rm SFR}) 1.045 1.270 1.573
{\rm log}_{10}({\rm sSFR}) -9.840 -9.577 -9.274
{\rm stellar\ age} 6.627 7.513 10.533

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.592 -0.410 -0.295
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.587 -0.050 0.372

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.138 0.194 0.288
\delta -0.930 -0.756 -0.506
\tau_1/\tau_2 0.643 1.151 1.619
Q_{PAH} 0.580 1.537 2.933
U_{min} 2.544 7.919 15.636
{\rm log}_{10}(\gamma_e)\, -3.176 -2.376 -1.556

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.378 -3.335 -2.227
{\rm log}_{10}(\tau_{AGN})\, 1.125 1.606 1.957

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.880 0.179 0.515
0.03-0.10 Gyr 1.189 1.422 1.729
0.10-0.32 Gyr -2.009 0.070 0.740
0.32-1.03 Gyr -3.476 -0.264 0.385
1.03-3.32 Gyr -2.091 0.034 0.639
3.32-10.67 Gyr 0.132 0.983 1.126
10.67-11.85 Gyr 0.471 1.354 2.056