2025ult

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Information

Transient

Name: AT2025ult
Right ascension: 7h37m20.81s
Declination: 40d09m54.10s
Discovery Date: Aug. 18, 2025, 12:13 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.043

Host

Name: SDSSJ073720.95+40095
Right ascension: 7h37m20.88s
Declination: 40d09m54.79s
Redshift: 0.100369
Photometric Redshift: 0.099
 

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
processed
 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 4.01
Cutout download processed 30.45
Global aperture construction processed 0.64
Local aperture photometry processed 5.85
Global aperture photometry processed 5.03
Validate local photometry processed 0.03
Validate global photometry processed 15.71
Host information processed 0.14
Global host SED inference processed 385.48
Local host SED inference processed 535.18
Transient information processed 0.0
Transient MWEBV processed 0.11
Host MWEBV processed 0.08
Processing status completed 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) = 7h37m20.81s, 40d09m54.10s
semi major axis, semi minor axis (arcsec) = 1.08, 1.08
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_z 55.1 0.72 19.547 0.014 AB
DES_z 59.69 1.1 19.460 0.020 AB
PanSTARRS_y 65.27 1.6 19.363 0.027 AB

Aperture details

RA, DEC (J2000) = 7h37m20.92s, 40d09m55.29s
semi major axis, semi minor axis (arcsec) = 8.18, 6.99
angle (degrees, anti-clockwise from east) = -126.08

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 15.73 1.89 20.908 0.130 AB
GALEX_NUV 21.17 0.91 20.586 0.047 AB
SDSS_u 71.44 6.06 19.265 0.092 AB
SDSS_g 199.36 4.47 18.151 0.024 AB
DES_g 205.75 0.87 18.117 0.005 AB
PanSTARRS_g 214.26 1.49 18.073 0.008 AB
SDSS_r 353.24 7.27 17.530 0.022 AB
PanSTARRS_r 391.81 2.91 17.417 0.008 AB
SDSS_i 521.6 8.4 17.107 0.017 AB
PanSTARRS_i 536.52 2.05 17.076 0.004 AB
PanSTARRS_z 602.99 4.9 16.949 0.009 AB
SDSS_z 579.37 20.58 16.993 0.039 AB
DES_z 619.47 3.88 16.920 0.007 AB
PanSTARRS_y 736.26 11.07 16.732 0.016 AB
2MASS_J 802.37 156.95 15.744 0.212 Vega
2MASS_H 813.13 238.52 15.257 0.318 Vega
2MASS_K 1373.47 291.8 14.218 0.231 Vega
WISE_W2 239.03 19.01 14.615 0.086 Vega
WISE_W3 1020.57 104.15 11.204 0.111 Vega
WISE_W4 608.65 500.99 10.319 0.894 Vega
 

Imaging data

 

Spectral Energy Distribution

 
 
 
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.091 9.352 9.564
{\rm log}_{10}({\rm SFR}) -0.884 -0.321 0.174
{\rm log}_{10}({\rm sSFR}) -10.253 -9.688 -8.968
{\rm stellar\ age} 3.432 6.388 8.498

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.199 -0.387 0.024
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.207 -0.555 0.145

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.359 0.755 1.341
\delta -0.643 -0.197 0.220
\tau_1/\tau_2 0.480 0.888 1.298
Q_{PAH} 0.714 2.055 4.551
U_{min} 3.344 8.625 15.576
{\rm log}_{10}(\gamma_e)\, -3.155 -1.912 -0.591

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.089 -1.001 -0.007
{\rm log}_{10}(\tau_{AGN})\, 1.031 1.502 2.036

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.760 -0.213 0.283
0.03-0.10 Gyr -1.630 -0.612 0.135
0.10-0.33 Gyr -2.160 -0.855 -0.195
0.33-1.06 Gyr -2.350 -0.847 -0.267
1.06-3.44 Gyr -2.530 -0.780 -0.378
3.44-11.20 Gyr -1.753 -0.636 -0.308
11.20-12.45 Gyr -1.577 -0.564 0.232

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.345 10.401 10.458
{\rm log}_{10}({\rm SFR}) -0.030 0.161 0.383
{\rm log}_{10}({\rm sSFR}) -10.432 -10.235 -10.007
{\rm stellar\ age} 5.942 6.973 8.047

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.626 -0.410 -0.245
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.364 -0.134 0.075

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.169 0.261 0.413
\delta -0.733 -0.412 -0.080
\tau_1/\tau_2 0.504 0.855 1.239
Q_{PAH} 0.998 2.083 3.744
U_{min} 2.578 6.968 13.493
{\rm log}_{10}(\gamma_e)\, -3.255 -2.303 -1.558

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.456 -3.626 -2.666
{\rm log}_{10}(\tau_{AGN})\, 0.999 1.534 1.944

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.151 0.277 0.414
0.03-0.10 Gyr -0.223 0.100 0.408
0.10-0.33 Gyr -0.332 0.049 0.329
0.33-1.06 Gyr -0.364 0.109 0.390
1.06-3.44 Gyr -0.103 0.373 0.640
3.44-11.20 Gyr 0.376 0.556 0.671
11.20-12.45 Gyr 0.102 0.592 1.049