2025whd

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Information

Transient

Name: AT2025whd
Right ascension: 1h47m34.95s
Declination: -17d17m31.20s
Discovery Date: Aug. 25, 2025, 11:02 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.015

Host

Name:
Right ascension: 1h47m34.91s
Declination: -17d17m31.41s
Redshift: None
Photometric Redshift: 0.188
 

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 7.43
Cutout download processed 40.32
Global aperture construction processed 0.67
Local aperture photometry processed 6.46
Global aperture photometry processed 5.62
Validate local photometry no valid phot 0.03
Validate global photometry processed 16.33
Host information processed 0.14
Global host SED inference processed 476.26
Local host SED inference not processed None
Transient information processed 0.0
Transient MWEBV processed 0.06
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) = 1h47m34.95s, -17d17m31.20s
semi major axis, semi minor axis (arcsec) = 0.64, 0.64
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) = 1h47m34.89s, -17d17m31.40s
semi major axis, semi minor axis (arcsec) = 5.09, 3.33
angle (degrees, anti-clockwise from east) = -113.36

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 1.12 0.77 23.775 0.746 AB
GALEX_NUV 1.78 1.08 23.273 0.659 AB
SDSS_u 10.73 4.03 21.324 0.408 AB
SDSS_g 50.65 2.17 19.638 0.047 AB
DES_g 49.64 0.3 19.660 0.007 AB
PanSTARRS_g 50.62 1.0 19.639 0.021 AB
SDSS_r 127.79 3.51 18.634 0.030 AB
PanSTARRS_r 125.19 1.27 18.656 0.011 AB
DES_r 136.82 0.51 18.560 0.004 AB
SDSS_i 199.19 4.87 18.152 0.027 AB
PanSTARRS_i 188.24 1.21 18.213 0.007 AB
PanSTARRS_z 249.66 2.75 17.907 0.012 AB
SDSS_z 269.2 12.63 17.825 0.051 AB
DES_z 264.86 2.07 17.842 0.008 AB
PanSTARRS_y 288.95 6.25 17.748 0.023 AB
2MASS_J 378.98 115.5 16.559 0.331 Vega
2MASS_H 404.18 195.31 16.016 0.525 Vega
2MASS_K 353.05 204.45 15.693 0.629 Vega
WISE_W1 160.85 14.87 15.685 0.100 Vega
WISE_W2 112.95 14.12 15.429 0.136 Vega
WISE_W3 -26.69 56.98 Vega
WISE_W4 49.8 421.85 13.037 9.198 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})\, 10.577 10.680 10.818
{\rm log}_{10}({\rm SFR}) -1.159 -0.162 0.412
{\rm log}_{10}({\rm sSFR}) -11.808 -10.815 -10.205
{\rm stellar\ age} 5.789 6.971 10.569

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.612 -1.199 -0.834
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.562 -0.660 0.131

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.386 0.547 0.708
\delta -0.884 -0.716 -0.511
\tau_1/\tau_2 0.561 1.002 1.482
Q_{PAH} 0.804 2.645 5.439
U_{min} 3.417 9.389 17.339
{\rm log}_{10}(\gamma_e)\, -2.666 -1.531 -0.380

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.891 -2.353 -1.435
{\rm log}_{10}(\tau_{AGN})\, 1.099 1.539 1.896

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.104 -0.436 0.074
0.03-0.10 Gyr -1.761 -0.130 0.529
0.10-0.32 Gyr -2.408 -0.231 0.529
0.32-1.01 Gyr -3.189 -0.392 0.472
1.01-3.23 Gyr -2.237 0.220 0.830
3.23-10.30 Gyr -0.740 0.783 1.004
10.30-11.44 Gyr -0.062 1.033 1.993