2025ljy

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Information

Transient

Name: AT2025ljy
Right ascension: 0h47m16.50s
Declination: -81d11m55.85s
Discovery Date: May 23, 2025, 12:59 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.073

Host

Name: 2025ljy
Right ascension: 0h47m17.57s
Declination: -81d11m40.61s
Redshift: 0.067180
Photometric Redshift:
 

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 0.72
Cutout download processed 3.09
Global aperture construction processed 0.15
Local aperture photometry processed 0.97
Global aperture photometry processed 1.01
Validate local photometry no valid phot 0.01
Validate global photometry processed 1.47
Host information processed 0.09
Global host SED inference processed 3822.04
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.13
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) = 0h47m16.50s, -81d11m55.85s
semi major axis, semi minor axis (arcsec) = 1.56, 1.56
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) = 0h47m17.55s, -81d11m40.76s
semi major axis, semi minor axis (arcsec) = 11.03, 8.48
angle (degrees, anti-clockwise from east) = -122.14

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 14.7 2.92 20.982 0.216 AB
GALEX_NUV 7.71 1.75 21.683 0.246 AB
2MASS_J 8402.21 257.64 13.194 0.033 Vega
2MASS_H 11102.89 416.01 12.419 0.041 Vega
2MASS_K 10607.68 456.54 11.998 0.047 Vega
WISE_W1 4161.98 29.96 12.153 0.008 Vega
WISE_W2 2364.98 30.66 12.126 0.014 Vega
WISE_W3 718.72 66.89 11.585 0.101 Vega
WISE_W4 413.05 370.49 10.740 0.974 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})\, 11.045 11.231 11.345
{\rm log}_{10}({\rm SFR}) -2.378 -1.527 -0.858
{\rm log}_{10}({\rm sSFR}) -13.540 -12.703 -12.117
{\rm stellar\ age} 7.087 10.131 12.214

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.522 -0.311 -0.144
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.201 -0.498 0.065

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.017 0.059 0.155
\delta -0.894 -0.545 -0.037
\tau_1/\tau_2 0.355 0.837 1.388
Q_{PAH} 0.578 2.084 4.222
U_{min} 2.384 7.669 15.335
{\rm log}_{10}(\gamma_e)\, -3.097 -1.645 -0.629

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.674 -3.886 -2.825
{\rm log}_{10}(\tau_{AGN})\, 1.169 1.696 2.006

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.582 -1.465 -0.878
0.03-0.10 Gyr -3.859 -1.838 -0.868
0.10-0.33 Gyr -3.934 -1.592 -0.579
0.33-1.08 Gyr -4.208 -1.424 0.080
1.08-3.53 Gyr -3.218 -0.824 1.067
3.53-11.58 Gyr -1.406 0.739 1.409
11.58-12.87 Gyr 0.764 2.115 2.480