2025yhy

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Information

Transient

Name: AT2025yhy
Right ascension: 0h49m49.29s
Declination: -9d12m03.37s
Discovery Date: Sept. 23, 2025, 5:49 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.028

Host

Name: 993994
Right ascension: 0h49m49.34s
Declination: -9d11m57.91s
Redshift: 0.121269
Photometric Redshift: 0.119
 

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
no valid phot
 status
Local host SED inference
Local host SED inference
not 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 3.87
Cutout download processed 18.16
Global aperture construction processed 0.59
Local aperture photometry processed 6.76
Global aperture photometry processed 6.38
Validate local photometry no valid phot 0.03
Validate global photometry processed 16.82
Host information processed 0.11
Global host SED inference processed 384.69
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.1
Host MWEBV processed 0.04
Processing status blocked 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) = 0h49m49.29s, -9d12m03.37s
semi major axis, semi minor axis (arcsec) = 0.92, 0.92
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) = 0h49m49.29s, -9d11m57.59s
semi major axis, semi minor axis (arcsec) = 8.45, 7.75
angle (degrees, anti-clockwise from east) = -78.51

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 23.94 1.31 20.452 0.059 AB
GALEX_NUV 38.3 1.07 19.942 0.030 AB
SDSS_u 43.28 7.78 19.809 0.195 AB
SDSS_g 260.26 5.07 17.861 0.021 AB
DES_g 278.78 0.9 17.787 0.004 AB
PanSTARRS_g 265.86 1.9 17.838 0.008 AB
SDSS_r 441.91 7.03 17.287 0.017 AB
PanSTARRS_r 429.85 1.48 17.317 0.004 AB
DES_r 492.88 2.04 17.168 0.004 AB
SDSS_i 646.5 10.36 16.874 0.017 AB
PanSTARRS_i 621.45 3.58 16.916 0.006 AB
PanSTARRS_z 744.62 5.08 16.720 0.007 AB
SDSS_z 702.73 31.04 16.783 0.048 AB
DES_z 776.85 5.91 16.674 0.008 AB
PanSTARRS_y 791.06 14.38 16.654 0.020 AB
2MASS_J 924.22 160.4 15.591 0.188 Vega
2MASS_H 1044.92 224.87 14.985 0.234 Vega
2MASS_K 1238.77 335.41 14.330 0.294 Vega
WISE_W1 491.21 20.84 14.473 0.046 Vega
WISE_W2 311.05 27.95 14.329 0.098 Vega
WISE_W3 717.6 99.18 11.586 0.150 Vega
WISE_W4 41.05 578.17 13.247 15.291 Vega
 

Imaging data

 

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})\, 10.609 10.653 10.714
{\rm log}_{10}({\rm SFR}) 0.148 0.356 0.566
{\rm log}_{10}({\rm sSFR}) -10.525 -10.295 -10.083
{\rm stellar\ age} 6.551 7.176 8.746

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.918 -0.677 -0.530
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.187 0.213 0.374

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.125 0.206 0.351
\delta -0.371 -0.029 0.195
\tau_1/\tau_2 0.719 1.043 1.378
Q_{PAH} 0.448 1.662 3.826
U_{min} 2.417 7.327 14.521
{\rm log}_{10}(\gamma_e)\, -2.876 -1.908 -0.975

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.433 -3.476 -2.366
{\rm log}_{10}(\tau_{AGN})\, 1.086 1.605 1.957

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr 0.031 0.187 0.311
0.03-0.10 Gyr 0.137 0.414 0.675
0.10-0.32 Gyr 0.171 0.458 0.687
0.32-1.05 Gyr 0.080 0.369 0.560
1.05-3.39 Gyr 0.081 0.461 0.692
3.39-10.98 Gyr 0.635 0.824 0.922
10.98-12.20 Gyr 0.530 0.989 1.536