2025ahtv results

Information

Transient
Name:AT2025ahtv
Right ascension: 8h14m21.08s
Declination:25d58m23.74s
Discovery Date:Dec. 15, 2025, 10:10 a.m.
Classification:None
Redshift:None
MW E(B-V):0.029
Host
Name:
Right ascension: 8h14m21.50s
Declination:25d58m24.14s
Redshift:None
Photometric Redshift:0.095
 

Cutout Download Report

Downloaded Unavailable
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
DES_g
DES_r
DES_z
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 1.01
Transient MWEBV processed 0.08
Host match processed 4.89
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 5.59
Validate global photometry processed 2.76
Global host SED inference processed 387.06
Local aperture photometry processed 5.45
Validate local photometry processed 0.02
Local host SED inference processed 441.95
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):8h14m21.08s, 25d58m23.74s
semi major axis, semi minor axis (arcsec):1.14, 1.14
angle (degrees, anti-clockwise from east):0.0
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
DES_r 6.28 0.44 21.905 0.076 AB
PanSTARRS_i 8.03 0.43 21.638 0.058 AB
PanSTARRS_z 9.76 0.97 21.427 0.108 AB
DES_z 9.75 1.11 21.428 0.124 AB
PanSTARRS_y 8.21 2.68 21.614 0.355 AB

Aperture details

RA, DEC (J2000):8h14m21.49s, 25d58m24.37s
semi major axis, semi minor axis (arcsec):7.56, 3.06
angle (degrees, anti-clockwise from east):-99.88
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 4.81 0.63 22.194 0.142 AB
GALEX_NUV 6.92 0.6 21.800 0.094 AB
DES_g 115.29 0.91 18.745 0.009 AB
PanSTARRS_g 117.19 1.68 18.728 0.016 AB
PanSTARRS_r 228.72 1.12 18.002 0.005 AB
DES_r 264.82 2.7 17.843 0.011 AB
PanSTARRS_i 347.71 1.79 17.547 0.006 AB
PanSTARRS_z 452.41 4.06 17.261 0.010 AB
DES_z 513.32 7.71 17.124 0.016 AB
PanSTARRS_y 560.11 11.14 17.029 0.022 AB
2MASS_J 762.71 94.91 15.799 0.135 Vega
2MASS_H 1287.88 138.82 14.758 0.117 Vega
2MASS_K 1296.03 163.07 14.281 0.137 Vega
WISE_W1 528.7 16.74 14.393 0.034 Vega
WISE_W2 350.06 19.59 14.201 0.061 Vega
WISE_W3 625.93 81.85 11.735 0.142 Vega
WISE_W4 1043.09 498.99 9.734 0.519 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.301 8.567 8.769
{\rm log}_{10}({\rm SFR}) -1.693 -1.103 -0.462
{\rm log}_{10}({\rm sSFR}) -10.349 -9.751 -8.976
{\rm stellar\ age} 2.652 5.954 7.387

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.493 -0.913 -0.307
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.584 -0.840 0.005

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.634 1.081 1.693
\delta -0.088 0.172 0.323
\tau_1/\tau_2 0.693 1.062 1.422
Q_{PAH} 0.805 2.389 4.580
U_{min} 3.167 8.310 15.426
{\rm log}_{10}(\gamma_e)\, -2.708 -1.502 -0.454

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.935 -0.155 0.287
{\rm log}_{10}(\tau_{AGN})\, 1.140 1.589 1.955

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.906 -1.170 -0.535
0.03-0.10 Gyr -1.879 -1.137 -0.474
0.10-0.33 Gyr -2.072 -1.308 -0.730
0.33-1.06 Gyr -2.405 -1.459 -1.025
1.06-3.46 Gyr -2.500 -1.395 -1.098
3.46-11.27 Gyr -2.533 -1.411 -1.085
11.27-12.52 Gyr -2.643 -1.474 -0.850

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.396 10.438 10.484
{\rm log}_{10}({\rm SFR}) -0.416 -0.147 0.143
{\rm log}_{10}({\rm sSFR}) -10.874 -10.582 -10.263
{\rm stellar\ age} 6.934 7.578 9.059

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.288 -0.071 0.076
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.383 0.071 0.376

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.344 0.483 0.650
\delta -0.257 0.001 0.206
\tau_1/\tau_2 0.660 0.982 1.312
Q_{PAH} 0.830 2.442 4.566
U_{min} 2.626 7.291 14.132
{\rm log}_{10}(\gamma_e)\, -2.589 -1.561 -0.763

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.265 -3.063 -1.937
{\rm log}_{10}(\tau_{AGN})\, 1.033 1.509 1.921

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.657 -0.291 -0.060
0.03-0.10 Gyr -0.471 -0.107 0.250
0.10-0.33 Gyr -0.445 -0.084 0.225
0.33-1.06 Gyr -0.531 -0.151 0.126
1.06-3.46 Gyr -0.325 0.131 0.407
3.46-11.27 Gyr 0.408 0.616 0.703
11.27-12.52 Gyr 0.317 0.765 1.281