2025lgi

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Information

Transient

Name: AT2025lgi
Right ascension: 21h49m46.12s
Declination: 40d22m03.61s
Discovery Date: May 21, 2025, 10:17 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.413

Host

Name: 2025lgi
Right ascension: 21h49m46.17s
Declination: 40d22m04.84s
Redshift: 0.067500
Photometric Redshift: 0.043
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 3.3
Transient MWEBV processed 0.06
Host match processed 5.18
Host information processed 0.09
Host MWEBV processed 0.05
Global aperture construction processed 0.68
Global aperture photometry processed 4.53
Validate global photometry processed 11.33
Global host SED inference processed 491.32
Local aperture photometry processed 4.2
Validate local photometry processed 0.02
Local host SED inference processed 452.3
 

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) = 21h49m46.12s, 40d22m03.61s
semi major axis, semi minor axis (arcsec) = 1.55, 1.55
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 28.24 0.35 20.273 0.014 AB
PanSTARRS_r 71.02 0.42 19.272 0.006 AB
PanSTARRS_i 128.76 0.53 18.626 0.004 AB
PanSTARRS_z 178.66 1.03 18.270 0.006 AB
PanSTARRS_y 226.05 2.82 18.014 0.014 AB

Aperture details

RA, DEC (J2000) = 21h49m46.15s, 40d22m04.98s
semi major axis, semi minor axis (arcsec) = 12.88, 8.82
angle (degrees, anti-clockwise from east) = -176.59

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 324.94 2.35 17.620 0.008 AB
PanSTARRS_y 1968.23 19.29 15.665 0.011 AB
2MASS_J 2761.62 273.03 14.402 0.107 Vega
2MASS_H 3410.3 451.8 13.700 0.144 Vega
2MASS_K 4098.65 412.06 13.031 0.109 Vega
WISE_W1 2080.76 92.75 12.905 0.048 Vega
WISE_W3 5700.8 151.68 9.336 0.029 Vega
WISE_W4 4897.35 773.02 8.055 0.171 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.624 9.793 9.924
{\rm log}_{10}({\rm SFR}) -1.538 -0.545 0.160
{\rm log}_{10}({\rm sSFR}) -11.303 -10.320 -9.582
{\rm stellar\ age} 4.452 7.073 8.962

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.504 -0.920 -0.505
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.656 -0.620 0.221

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.315 0.745 1.079
\delta -0.645 -0.245 0.146
\tau_1/\tau_2 0.653 1.023 1.390
Q_{PAH} 0.643 2.272 4.987
U_{min} 3.133 8.597 15.472
{\rm log}_{10}(\gamma_e)\, -3.326 -1.991 -0.653

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.173 -1.363 -0.471
{\rm log}_{10}(\tau_{AGN})\, 1.020 1.361 1.801

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.342 -1.185 -0.636
0.03-0.10 Gyr -1.647 -0.476 0.301
0.10-0.33 Gyr -1.582 -0.395 0.174
0.33-1.08 Gyr -1.942 -0.435 0.076
1.08-3.53 Gyr -1.449 -0.351 0.025
3.53-11.57 Gyr -0.974 -0.169 0.081
11.57-12.86 Gyr -0.923 -0.057 0.656

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.512 10.642 10.765
{\rm log}_{10}({\rm SFR}) -0.159 0.503 0.930
{\rm log}_{10}({\rm sSFR}) -10.739 -10.178 -9.690
{\rm stellar\ age} 4.631 6.946 8.967

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.688 -0.368 -0.098
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.652 -0.737 0.152

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.093 0.201 0.365
\delta -0.720 -0.203 0.210
\tau_1/\tau_2 0.509 0.954 1.379
Q_{PAH} 0.956 2.393 5.030
U_{min} 2.377 7.346 14.237
{\rm log}_{10}(\gamma_e)\, -3.240 -2.276 -1.328

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.397 -1.702 -1.173
{\rm log}_{10}(\tau_{AGN})\, 1.047 1.353 1.733

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.182 0.371 0.729
0.03-0.10 Gyr -0.684 0.482 1.042
0.10-0.33 Gyr -0.684 0.355 0.880
0.33-1.08 Gyr -0.460 0.323 0.851
1.08-3.53 Gyr -0.059 0.629 1.022
3.53-11.57 Gyr 0.106 0.678 0.901
11.57-12.86 Gyr -0.219 0.756 1.480