2025alem

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Information

Transient

Name: AT2025alem
Right ascension: 3h19m18.18s
Declination: -2d30m26.14s
Discovery Date: Dec. 27, 2025, 7:25 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.074

Host

Name:
Right ascension: 3h19m18.42s
Declination: -2d30m27.43s
Redshift: None
Photometric Redshift: 0.150
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 6.79
Transient MWEBV processed 0.14
Host match processed 5.61
Host information processed 0.11
Host MWEBV processed 0.17
Global aperture construction processed 2.87
Global aperture photometry processed 5.61
Validate global photometry processed 15.46
Global host SED inference processed 478.1
Local aperture photometry processed 5.42
Validate local photometry no valid phot 0.02
Local host SED inference not processed None
 

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) = 3h19m18.18s, -2d30m26.14s
semi major axis, semi minor axis (arcsec) = 0.77, 0.77
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) = 3h19m18.36s, -2d30m26.46s
semi major axis, semi minor axis (arcsec) = 3.6, 2.54
angle (degrees, anti-clockwise from east) = -89.41

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 5.36 1.69 22.077 0.342 AB
GALEX_NUV 4.16 1.34 22.352 0.349 AB
DES_g 19.62 0.31 20.668 0.017 AB
PanSTARRS_g 18.87 1.05 20.711 0.060 AB
PanSTARRS_r 33.01 0.96 20.103 0.032 AB
DES_r 39.26 0.7 19.915 0.019 AB
PanSTARRS_i 51.97 1.07 19.611 0.022 AB
PanSTARRS_z 64.39 1.94 19.378 0.033 AB
DES_z 64.85 1.46 19.370 0.024 AB
PanSTARRS_y 70.86 5.41 19.274 0.083 AB
2MASS_J 102.33 87.84 17.980 0.932 Vega
2MASS_H 32.15 137.01 18.765 4.627 Vega
2MASS_K 15.91 153.27 19.058 10.461 Vega
WISE_W1 48.79 7.08 16.980 0.157 Vega
WISE_W2 26.8 8.89 16.991 0.360 Vega
WISE_W3 54.78 55.78 14.379 1.106 Vega
WISE_W4 36.0 416.26 13.389 12.554 Vega
 

Imaging data

Click the image to load the interactive plot.


 

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})\, 9.836 9.924 10.025
{\rm log}_{10}({\rm SFR}) -0.151 0.154 0.441
{\rm log}_{10}({\rm sSFR}) -10.062 -9.762 -9.500
{\rm stellar\ age} 6.352 7.263 9.697

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.389 -0.868 -0.319
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.336 0.160 0.390

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.257 0.543 0.809
\delta 0.147 0.298 0.371
\tau_1/\tau_2 0.780 1.184 1.617
Q_{PAH} 0.811 2.379 4.437
U_{min} 2.750 8.191 15.457
{\rm log}_{10}(\gamma_e)\, -2.385 -1.334 -0.407

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.049 -2.324 -1.189
{\rm log}_{10}(\tau_{AGN})\, 1.034 1.501 1.910

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.750 -0.355 -0.100
0.03-0.10 Gyr -0.069 0.276 0.577
0.10-0.32 Gyr -0.953 -0.261 0.111
0.32-1.03 Gyr -1.331 -0.565 -0.184
1.03-3.32 Gyr -1.300 -0.423 -0.075
3.32-10.67 Gyr -0.337 0.049 0.196
10.67-11.86 Gyr -0.101 0.385 1.017