2025xva

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Information

Transient

Name: AT2025xva
Right ascension: 21h32m30.81s
Declination: -46d28m13.37s
Discovery Date: Sept. 17, 2025, 2:33 p.m.
Classification: None
Redshift: None
MW E(B-V): 0.019

Host

Name:
Right ascension: 21h32m31.29s
Declination: -46d28m11.00s
Redshift: None
Photometric Redshift: 0.047
 

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 7.9
Cutout download processed 3.36
Global aperture construction processed 0.27
Local aperture photometry processed 0.83
Global aperture photometry processed 0.71
Validate local photometry no valid phot 0.01
Validate global photometry processed 1.03
Host information processed 0.1
Global host SED inference processed 512.66
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.04
Host MWEBV processed 0.03
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) = 21h32m30.81s, -46d28m13.37s
semi major axis, semi minor axis (arcsec) = 2.19, 2.19
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) = 21h32m31.66s, -46d28m09.25s
semi major axis, semi minor axis (arcsec) = 9.86, 5.38
angle (degrees, anti-clockwise from east) = -119.15

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 13.36 2.66 21.085 0.216 AB
GALEX_NUV 18.78 2.07 20.716 0.120 AB
2MASS_J 802.75 172.29 15.744 0.233 Vega
2MASS_H 890.47 216.77 15.158 0.264 Vega
2MASS_K 563.63 254.96 15.185 0.491 Vega
WISE_W1 273.05 19.16 15.110 0.076 Vega
WISE_W2 176.62 19.71 14.943 0.121 Vega
WISE_W3 448.8 88.31 12.096 0.214 Vega
WISE_W4 726.47 621.41 10.127 0.929 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})\, 9.334 9.510 9.689
{\rm log}_{10}({\rm SFR}) -1.054 -0.662 -0.301
{\rm log}_{10}({\rm sSFR}) -10.671 -10.159 -9.759
{\rm stellar\ age} 5.671 7.477 10.052

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.978 -0.378 -0.071
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.198 -0.499 -0.071

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.135 0.296 0.552
\delta -0.715 -0.310 0.035
\tau_1/\tau_2 0.319 0.709 1.134
Q_{PAH} 0.347 1.207 2.854
U_{min} 2.736 7.470 14.043
{\rm log}_{10}(\gamma_e)\, -3.416 -2.486 -1.274

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.196 -2.954 -1.759
{\rm log}_{10}(\tau_{AGN})\, 1.039 1.493 1.917

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.450 -0.626 -0.209
0.03-0.10 Gyr -1.657 -0.850 -0.254
0.10-0.33 Gyr -1.929 -0.884 -0.342
0.33-1.09 Gyr -2.239 -0.863 -0.310
1.09-3.58 Gyr -1.909 -0.708 -0.349
3.58-11.82 Gyr -1.029 -0.463 -0.205
11.82-13.13 Gyr -0.940 -0.288 0.524