2025alwi results

Information

Transient
Name:AT2025alwi
Right ascension: 8h14m38.34s
Declination:33d44m30.49s
Discovery Date:Dec. 5, 2025, 8:05 p.m.
Classification:None
Redshift:None
MW E(B-V):0.040
Host
Name:SDSSJ081438.27+33443
Right ascension: 8h14m38.16s
Declination:33d44m30.88s
Redshift:None
Photometric Redshift:0.096
 

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 16.65
Transient MWEBV processed 0.05
Host match processed 3.86
Host information processed 0.26
Host MWEBV processed 0.05
Global aperture construction processed 0.62
Global aperture photometry processed 6.31
Validate global photometry processed 18.81
Global host SED inference processed 381.07
Local aperture photometry processed 6.08
Validate local photometry processed 0.03
Local host SED inference processed 475.42
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h14m38.34s, 33d44m30.49s
semi major axis, semi minor axis (arcsec):1.13, 1.13
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 72.58 0.76 19.248 0.011 AB
PanSTARRS_i 112.54 0.37 18.772 0.004 AB
PanSTARRS_z 151.93 0.96 18.446 0.007 AB
DES_z 172.48 3.04 18.308 0.019 AB
PanSTARRS_y 185.7 2.15 18.228 0.013 AB

Aperture details

RA, DEC (J2000):8h14m38.28s, 33d44m30.99s
semi major axis, semi minor axis (arcsec):8.38, 3.41
angle (degrees, anti-clockwise from east):-42.76
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.87 2.18 22.181 0.487 AB
GALEX_NUV 9.0 1.6 21.514 0.194 AB
SDSS_u 20.02 3.72 20.646 0.202 AB
SDSS_g 147.42 3.66 18.479 0.027 AB
DES_g 150.41 0.88 18.457 0.006 AB
PanSTARRS_g 154.14 1.46 18.430 0.010 AB
SDSS_r 327.15 5.13 17.613 0.017 AB
PanSTARRS_r 337.79 1.53 17.578 0.005 AB
DES_r 333.31 1.65 17.593 0.005 AB
SDSS_i 503.56 6.8 17.145 0.015 AB
PanSTARRS_i 483.2 1.62 17.190 0.004 AB
PanSTARRS_z 595.39 4.3 16.963 0.008 AB
SDSS_z 720.3 12.22 16.756 0.018 AB
DES_z 680.96 6.18 16.817 0.010 AB
PanSTARRS_y 723.06 9.89 16.752 0.015 AB
2MASS_J 1049.55 116.65 15.453 0.121 Vega
2MASS_H 1633.15 171.44 14.500 0.114 Vega
2MASS_K 1311.78 198.75 14.268 0.164 Vega
WISE_W1 567.62 19.92 14.316 0.038 Vega
WISE_W2 321.36 24.19 14.294 0.082 Vega
WISE_W3 232.77 82.29 12.809 0.384 Vega
WISE_W4 467.8 490.72 10.605 1.139 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.876 10.023 10.176
{\rm log}_{10}({\rm SFR}) -1.020 -0.340 0.203
{\rm log}_{10}({\rm sSFR}) -11.082 -10.423 -9.752
{\rm stellar\ age} 4.707 7.398 10.439

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.216 -0.398 -0.040
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.529 -0.779 -0.006

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.608 1.133 1.789
\delta -0.563 -0.235 0.063
\tau_1/\tau_2 0.595 0.948 1.321
Q_{PAH} 0.601 2.089 4.266
U_{min} 2.779 7.459 14.690
{\rm log}_{10}(\gamma_e)\, -3.416 -2.629 -0.874

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.620 -1.339 -0.165
{\rm log}_{10}(\tau_{AGN})\, 1.048 1.446 1.928

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.972 -0.248 0.233
0.03-0.10 Gyr -1.617 -0.513 0.218
0.10-0.33 Gyr -2.007 -0.698 0.213
0.33-1.06 Gyr -2.241 -0.673 0.267
1.06-3.46 Gyr -2.142 -0.387 0.170
3.46-11.26 Gyr -0.927 0.044 0.300
11.26-12.51 Gyr -0.625 0.271 1.147

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.517 10.566 10.642
{\rm log}_{10}({\rm SFR}) -0.497 -0.194 0.107
{\rm log}_{10}({\rm sSFR}) -11.081 -10.752 -10.441
{\rm stellar\ age} 7.533 9.226 11.648

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.667 -0.453 -0.294
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.347 -0.574 -0.057

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.260 0.391 0.559
\delta -0.590 -0.339 -0.115
\tau_1/\tau_2 0.589 1.005 1.463
Q_{PAH} 1.002 2.339 4.423
U_{min} 2.919 7.822 14.640
{\rm log}_{10}(\gamma_e)\, -2.982 -1.953 -0.913

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.481 -3.657 -2.699
{\rm log}_{10}(\tau_{AGN})\, 1.010 1.524 1.924

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.257 -0.018 0.193
0.03-0.10 Gyr -1.075 -0.314 0.106
0.10-0.33 Gyr -1.628 -0.544 -0.075
0.33-1.06 Gyr -2.116 -0.789 -0.217
1.06-3.46 Gyr -1.828 -0.589 0.023
3.46-11.26 Gyr -0.552 0.623 0.810
11.26-12.51 Gyr 0.620 1.355 1.777