2025spn

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Information

Transient

Name: AT2025spn
Right ascension: 17h44m08.12s
Declination: 37d46m48.08s
Discovery Date: July 29, 2025, 4:40 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.029

Host

Name:
Right ascension: 17h44m08.30s
Declination: 37d46m49.48s
Redshift: None
Photometric Redshift: 0.118
 

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
not enough filters
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 6.98
Cutout download processed 29.41
Global aperture construction processed 0.66
Local aperture photometry processed 5.01
Global aperture photometry processed 4.49
Validate local photometry processed 0.02
Validate global photometry processed 12.42
Host information processed 0.14
Global host SED inference processed 449.8
Local host SED inference not enough filters 20.15
Transient information processed 0.0
Transient MWEBV processed 0.12
Host MWEBV processed 0.04
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) = 17h44m08.12s, 37d46m48.08s
semi major axis, semi minor axis (arcsec) = 0.94, 0.94
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_z 32.56 1.18 20.118 0.039 AB

Aperture details

RA, DEC (J2000) = 17h44m08.28s, 37d46m49.72s
semi major axis, semi minor axis (arcsec) = 9.03, 7.57
angle (degrees, anti-clockwise from east) = -84.78

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 18.26 3.58 20.746 0.213 AB
GALEX_NUV 31.74 3.12 20.146 0.107 AB
DES_g 252.38 1.08 17.895 0.005 AB
PanSTARRS_g 257.8 1.97 17.872 0.008 AB
PanSTARRS_r 468.05 2.78 17.224 0.006 AB
PanSTARRS_i 673.7 1.64 16.829 0.003 AB
PanSTARRS_z 841.11 4.7 16.588 0.006 AB
DES_z 846.38 6.25 16.581 0.008 AB
PanSTARRS_y 987.44 12.35 16.414 0.014 AB
2MASS_J 1234.74 166.08 15.276 0.146 Vega
2MASS_H 922.66 278.53 15.120 0.328 Vega
2MASS_K 1178.05 320.6 14.384 0.295 Vega
WISE_W1 578.64 18.29 14.295 0.034 Vega
WISE_W2 331.51 25.63 14.260 0.084 Vega
WISE_W3 558.57 74.8 11.858 0.145 Vega
WISE_W4 497.59 456.32 10.538 0.996 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})\, 10.725 10.767 10.847
{\rm log}_{10}({\rm SFR}) 0.277 0.535 0.812
{\rm log}_{10}({\rm sSFR}) -10.508 -10.228 -9.954
{\rm stellar\ age} 7.358 8.798 11.200

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.621 -0.482 -0.381
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.451 -0.033 0.361

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.091 0.144 0.234
\delta -0.870 -0.619 -0.297
\tau_1/\tau_2 0.753 1.199 1.623
Q_{PAH} 0.585 1.546 3.285
U_{min} 2.647 7.922 15.506
{\rm log}_{10}(\gamma_e)\, -2.754 -1.808 -1.154

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.559 -3.738 -2.727
{\rm log}_{10}(\tau_{AGN})\, 1.137 1.682 1.994

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.380 0.010 0.220
0.03-0.10 Gyr 0.350 0.655 0.953
0.10-0.32 Gyr -0.667 0.194 0.535
0.32-1.05 Gyr -1.543 -0.307 0.086
1.05-3.40 Gyr -1.420 -0.265 0.211
3.40-11.01 Gyr -0.069 0.871 1.025
11.01-12.24 Gyr 0.828 1.536 1.980