2025ytt

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Information

Transient

Name: AT2025ytt
Right ascension: 3h43m32.52s
Declination: -24d32m43.68s
Discovery Date: Sept. 28, 2025, 3:16 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.009

Host

Name:
Right ascension: 3h43m32.27s
Declination: -24d32m40.75s
Redshift: None
Photometric Redshift: 0.093
 

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 5.55
Cutout download processed 5.91
Global aperture construction processed 0.62
Local aperture photometry processed 5.63
Global aperture photometry processed 5.97
Validate local photometry processed 0.02
Validate global photometry processed 14.57
Host information processed 0.11
Global host SED inference processed 438.59
Local host SED inference processed 450.02
Transient information processed 0.0
Transient MWEBV processed 0.09
Host MWEBV processed 0.04
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) = 3h43m32.52s, -24d32m43.68s
semi major axis, semi minor axis (arcsec) = 1.16, 1.16
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 11.56 0.11 21.242 0.010 AB
DES_r 22.19 0.19 20.534 0.009 AB
PanSTARRS_i 24.31 0.48 20.436 0.022 AB
PanSTARRS_z 28.3 0.83 20.271 0.032 AB
DES_z 36.86 0.77 19.984 0.023 AB
PanSTARRS_y 35.43 2.06 20.026 0.063 AB

Aperture details

RA, DEC (J2000) = 3h43m32.26s, -24d32m40.56s
semi major axis, semi minor axis (arcsec) = 7.03, 5.22
angle (degrees, anti-clockwise from east) = -61.52

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 23.26 3.51 20.484 0.164 AB
GALEX_NUV 21.95 0.81 20.547 0.040 AB
DES_g 397.01 0.63 17.403 0.002 AB
PanSTARRS_g 394.32 1.79 17.410 0.005 AB
PanSTARRS_r 778.59 2.05 16.672 0.003 AB
DES_r 864.12 1.17 16.559 0.001 AB
PanSTARRS_i 1133.99 2.52 16.263 0.002 AB
PanSTARRS_z 1422.32 4.35 16.018 0.003 AB
DES_z 1530.64 4.85 15.938 0.003 AB
PanSTARRS_y 1710.28 10.69 15.817 0.007 AB
2MASS_J 2039.92 152.26 14.731 0.081 Vega
2MASS_H 2853.22 235.64 13.894 0.090 Vega
2MASS_K 2238.58 290.21 13.687 0.141 Vega
WISE_W1 1029.83 14.98 13.669 0.016 Vega
WISE_W2 637.11 17.52 13.550 0.030 Vega
WISE_W3 712.21 66.23 11.594 0.101 Vega
WISE_W4 622.61 413.1 10.294 0.720 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})\, 8.721 8.924 9.044
{\rm log}_{10}({\rm SFR}) -2.021 -1.120 -0.198
{\rm log}_{10}({\rm sSFR}) -11.009 -10.078 -9.030
{\rm stellar\ age} 1.719 5.159 6.933

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.241 -0.455 -0.027
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.637 -0.722 0.193

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.266 0.685 1.126
\delta -0.602 -0.272 0.050
\tau_1/\tau_2 0.635 1.010 1.403
Q_{PAH} 1.639 3.851 5.780
U_{min} 3.130 8.245 15.407
{\rm log}_{10}(\gamma_e)\, -2.801 -1.686 -0.600

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.548 -0.544 0.105
{\rm log}_{10}(\tau_{AGN})\, 1.057 1.589 1.955

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.235 -1.286 -0.761
0.03-0.10 Gyr -2.312 -1.182 -0.076
0.10-0.33 Gyr -2.059 -0.988 -0.266
0.33-1.06 Gyr -1.895 -0.827 -0.339
1.06-3.46 Gyr -2.285 -1.010 -0.713
3.46-11.29 Gyr -2.540 -1.150 -0.854
11.29-12.54 Gyr -2.701 -1.189 -0.611

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.814 10.884 10.934
{\rm log}_{10}({\rm SFR}) -0.660 -0.312 -0.018
{\rm log}_{10}({\rm sSFR}) -11.564 -11.182 -10.872
{\rm stellar\ age} 8.019 10.560 11.829

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.518 -0.398 -0.296
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.185 0.120 0.398

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.057 0.112 0.182
\delta -0.627 -0.283 0.058
\tau_1/\tau_2 0.629 1.030 1.435
Q_{PAH} 0.675 2.040 4.277
U_{min} 2.737 7.794 15.403
{\rm log}_{10}(\gamma_e)\, -2.464 -1.346 -0.395

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.397 -3.301 -2.271
{\rm log}_{10}(\tau_{AGN})\, 1.116 1.632 1.973

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.787 -0.403 -0.198
0.03-0.10 Gyr -0.995 -0.293 0.093
0.10-0.33 Gyr -1.728 -0.547 -0.091
0.33-1.06 Gyr -2.498 -0.875 -0.310
1.06-3.46 Gyr -2.214 -0.692 -0.064
3.46-11.29 Gyr -0.823 0.668 1.076
11.29-12.54 Gyr 1.151 1.892 2.078