2025alvg results

Information

Transient
Name:AT2025alvg
Right ascension: 9h38m08.54s
Declination:4d35m01.57s
Discovery Date:Nov. 28, 2025, 1:48 p.m.
Classification:None
Redshift:None
MW E(B-V):0.039
Host
Name:
Right ascension: 9h38m08.42s
Declination:4d35m07.14s
Redshift:None
Photometric Redshift:0.091
 

Cutout Download Report

Downloaded Unavailable
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_z
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 18.57
Transient MWEBV processed 0.06
Host match processed 5.5
Host information processed 0.16
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 6.73
Validate global photometry processed 19.5
Global host SED inference processed 458.27
Local aperture photometry processed 6.81
Validate local photometry processed 0.03
Local host SED inference processed 516.24
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):9h38m08.54s, 4d35m01.57s
semi major axis, semi minor axis (arcsec):1.18, 1.18
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_g 2.28 0.11 23.006 0.051 AB
DES_r 3.93 0.21 22.413 0.059 AB
PanSTARRS_i 3.42 0.49 22.566 0.156 AB
PanSTARRS_z 4.54 0.78 22.257 0.188 AB
DES_z 5.11 0.63 22.129 0.134 AB
PanSTARRS_y 7.63 1.92 21.694 0.273 AB

Aperture details

RA, DEC (J2000):9h38m08.40s, 4d35m07.56s
semi major axis, semi minor axis (arcsec):10.59, 8.43
angle (degrees, anti-clockwise from east):-84.08
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 28.45 1.23 20.265 0.047 AB
GALEX_NUV 38.09 0.7 19.948 0.020 AB
SDSS_u 7.49 7.61 21.714 1.102 AB
SDSS_g 199.86 5.08 18.148 0.028 AB
DES_g 228.72 0.95 18.002 0.005 AB
PanSTARRS_g 230.67 2.02 17.993 0.010 AB
SDSS_r 359.74 6.43 17.510 0.019 AB
DES_r 415.62 1.98 17.353 0.005 AB
SDSS_i 580.35 9.88 16.991 0.018 AB
PanSTARRS_i 479.76 3.94 17.197 0.009 AB
PanSTARRS_z 585.17 6.35 16.982 0.012 AB
SDSS_z 625.33 21.77 16.910 0.038 AB
DES_z 605.49 6.06 16.945 0.011 AB
PanSTARRS_y 636.62 15.3 16.890 0.026 AB
2MASS_J 758.56 261.14 15.805 0.374 Vega
2MASS_H 623.1 331.96 15.546 0.578 Vega
2MASS_K 797.4 462.33 14.808 0.629 Vega
WISE_W1 395.1 22.37 14.709 0.061 Vega
WISE_W2 282.82 26.03 14.432 0.100 Vega
WISE_W3 846.09 113.85 11.407 0.146 Vega
WISE_W4 450.32 581.04 10.646 1.401 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.646 7.980 8.218
{\rm log}_{10}({\rm SFR}) -1.644 -1.002 -0.397
{\rm log}_{10}({\rm sSFR}) -9.798 -8.919 -7.993
{\rm stellar\ age} 0.179 2.379 5.572

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.328 -0.472 0.022
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.530 -0.753 0.037

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.659 1.104 1.716
\delta -0.124 0.102 0.273
\tau_1/\tau_2 0.677 1.072 1.525
Q_{PAH} 1.576 3.816 5.933
U_{min} 3.257 8.862 16.657
{\rm log}_{10}(\gamma_e)\, -2.808 -1.728 -0.594

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.939 -0.162 0.281
{\rm log}_{10}(\tau_{AGN})\, 1.033 1.582 1.985

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.780 -1.114 -0.556
0.03-0.10 Gyr -1.893 -1.089 -0.336
0.10-0.33 Gyr -2.376 -1.283 -0.666
0.33-1.06 Gyr -4.235 -1.778 -1.239
1.06-3.47 Gyr -5.554 -2.476 -1.650
3.47-11.31 Gyr -6.459 -2.701 -1.841
11.31-12.56 Gyr -6.388 -2.685 -1.696

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.274 10.320 10.406
{\rm log}_{10}({\rm SFR}) -0.061 0.157 0.402
{\rm log}_{10}({\rm sSFR}) -10.386 -10.173 -9.920
{\rm stellar\ age} 7.284 8.155 10.762

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.780 -0.607 -0.454
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.553 0.099 0.363

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.048 0.094 0.171
\delta -0.794 -0.387 0.031
\tau_1/\tau_2 0.797 1.187 1.566
Q_{PAH} 0.802 2.406 4.521
U_{min} 2.770 7.935 14.672
{\rm log}_{10}(\gamma_e)\, -2.653 -1.395 -0.463

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.573 -1.692 -1.329
{\rm log}_{10}(\tau_{AGN})\, 1.104 1.477 1.850

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.260 -0.083 0.060
0.03-0.10 Gyr -0.048 0.244 0.519
0.10-0.33 Gyr -0.626 -0.119 0.163
0.33-1.06 Gyr -1.079 -0.401 -0.070
1.06-3.47 Gyr -1.085 -0.353 0.080
3.47-11.31 Gyr -0.020 0.463 0.573
11.31-12.56 Gyr 0.318 0.841 1.456