2025ytd

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Information

Transient

Name: AT2025ytd
Right ascension: 16h26m37.19s
Declination: 27d54m08.57s
Discovery Date: Sept. 23, 2025, 5:48 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.059

Host

Name:
Right ascension: 16h26m37.17s
Declination: 27d54m08.38s
Redshift: None
Photometric Redshift: 0.178
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 2.79
Transient MWEBV processed 0.09
Host match processed 8.12
Host information processed 0.11
Host MWEBV processed 0.1
Global aperture construction processed 2.69
Global aperture photometry processed 6.02
Validate global photometry processed 15.63
Global host SED inference processed 473.7
Local aperture photometry processed 5.79
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) = 16h26m37.19s, 27d54m08.57s
semi major axis, semi minor axis (arcsec) = 0.67, 0.67
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) = 16h26m37.16s, 27d54m08.52s
semi major axis, semi minor axis (arcsec) = 5.15, 2.3
angle (degrees, anti-clockwise from east) = -140.81

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 1.69 2.24 23.333 1.444 AB
SDSS_g 12.23 1.56 21.181 0.139 AB
PanSTARRS_g 12.31 0.8 21.174 0.070 AB
SDSS_r 16.75 1.82 20.840 0.118 AB
PanSTARRS_r 23.4 0.8 20.477 0.037 AB
DES_r 21.93 0.59 20.548 0.029 AB
SDSS_i 23.62 2.45 20.467 0.113 AB
PanSTARRS_i 28.27 0.97 20.272 0.037 AB
PanSTARRS_z 36.3 2.01 20.000 0.060 AB
SDSS_z -2.77 8.0 AB
DES_z 32.5 1.51 20.120 0.050 AB
PanSTARRS_y 28.36 4.69 20.268 0.180 AB
2MASS_J 49.3 79.23 18.773 1.745 Vega
2MASS_H -58.24 109.27 Vega
2MASS_K -203.71 120.11 Vega
WISE_W1 17.26 7.43 18.108 0.468 Vega
WISE_W2 -0.12 8.45 Vega
WISE_W3 -59.75 56.72 Vega
WISE_W4 -239.87 325.91 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})\, 9.311 9.513 9.673
{\rm log}_{10}({\rm SFR}) -1.618 -0.485 0.454
{\rm log}_{10}({\rm sSFR}) -11.121 -9.982 -8.994
{\rm stellar\ age} 0.465 2.892 6.109

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.696 -1.150 -0.375
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.545 -0.871 -0.027

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.216 0.734 1.326
\delta -0.427 -0.008 0.279
\tau_1/\tau_2 0.583 1.012 1.443
Q_{PAH} 1.383 3.522 5.614
U_{min} 3.291 9.269 16.902
{\rm log}_{10}(\gamma_e)\, -2.887 -1.785 -0.643

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.204 -0.923 -0.054
{\rm log}_{10}(\tau_{AGN})\, 0.999 1.385 1.831

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.738 -1.047 -0.271
0.03-0.10 Gyr -2.002 -0.454 0.590
0.10-0.32 Gyr -1.118 0.042 0.869
0.32-1.02 Gyr -1.815 -0.138 0.531
1.02-3.25 Gyr -3.388 -0.601 -0.093
3.25-10.39 Gyr -4.233 -1.024 -0.249
10.39-11.54 Gyr -4.449 -0.991 -0.041