2025ahva

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Information

Transient

Name: AT2025ahva
Right ascension: 0h16m21.51s
Declination: 8d45m41.69s
Discovery Date: Nov. 24, 2025, 4:25 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.188

Host

Name:
Right ascension: 0h16m21.59s
Declination: 8d45m43.40s
Redshift: None
Photometric Redshift: 0.072
 

Processing Status: blocked

Task Name Status Time taken (s) Warning Flag
Cutout download processed 16.59
Transient MWEBV processed 0.04
Host match processed 5.21
Host information processed 0.13
Host MWEBV processed 0.04
Global aperture construction processed 0.63
Global aperture photometry processed 5.85
Validate global photometry processed 2.56
Global host SED inference processed 443.78
Local aperture photometry processed 5.98
Validate local photometry processed 0.03
Local host SED inference processed 568.28
 

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) = 0h16m21.51s, 8d45m41.69s
semi major axis, semi minor axis (arcsec) = 1.46, 1.46
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_g 62.76 2.14 19.406 0.037 AB
DES_g 61.3 0.32 19.431 0.006 AB
PanSTARRS_g 54.9 0.54 19.551 0.011 AB
SDSS_r 136.31 3.15 18.564 0.025 AB
PanSTARRS_r 121.29 0.66 18.690 0.006 AB
SDSS_i 218.11 4.03 18.053 0.020 AB
PanSTARRS_i 194.81 0.51 18.176 0.003 AB
PanSTARRS_z 263.23 1.09 17.849 0.005 AB
SDSS_z 306.01 6.6 17.686 0.023 AB
PanSTARRS_y 332.11 2.19 17.597 0.007 AB

Aperture details

RA, DEC (J2000) = 0h16m21.57s, 8d45m43.50s
semi major axis, semi minor axis (arcsec) = 6.06, 5.34
angle (degrees, anti-clockwise from east) = -129.64

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 17.76 3.77 20.777 0.231 AB
SDSS_u 54.8 5.36 19.553 0.106 AB
SDSS_g 375.93 5.53 17.462 0.016 AB
DES_g 402.04 0.85 17.389 0.002 AB
PanSTARRS_g 403.79 2.06 17.385 0.006 AB
SDSS_r 919.35 8.55 16.491 0.010 AB
PanSTARRS_r 915.64 2.51 16.496 0.003 AB
SDSS_i 1497.34 11.18 15.962 0.008 AB
PanSTARRS_i 1459.88 1.89 15.989 0.001 AB
PanSTARRS_z 1963.06 4.12 15.668 0.002 AB
SDSS_z 2044.12 22.11 15.624 0.012 AB
PanSTARRS_y 2457.4 8.42 15.424 0.004 AB
2MASS_J 4186.27 147.93 13.951 0.038 Vega
2MASS_H 4775.59 222.77 13.335 0.051 Vega
2MASS_K 4657.82 239.99 12.892 0.056 Vega
WISE_W1 1790.37 26.16 13.069 0.016 Vega
WISE_W2 1150.75 28.71 12.909 0.027 Vega
WISE_W3 1707.36 92.16 10.645 0.059 Vega
WISE_W4 779.99 558.42 10.050 0.777 Vega
 

Imaging data

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Spectral Energy Distribution

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Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.654 9.855 9.986
{\rm log}_{10}({\rm SFR}) -1.704 -0.521 0.598
{\rm log}_{10}({\rm sSFR}) -11.533 -10.358 -9.179
{\rm stellar\ age} 1.492 5.926 7.743

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.371 -0.623 -0.182
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.427 -0.297 0.317

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.338 1.027 1.529
\delta -0.516 -0.172 0.175
\tau_1/\tau_2 0.648 1.053 1.443
Q_{PAH} 0.537 1.923 4.076
U_{min} 3.133 8.942 16.751
{\rm log}_{10}(\gamma_e)\, -3.220 -1.683 -0.646

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.694 -1.466 -0.125
{\rm log}_{10}(\tau_{AGN})\, 0.947 1.454 1.947

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.033 -1.285 -0.619
0.03-0.10 Gyr -1.849 -0.450 0.756
0.10-0.33 Gyr -1.459 -0.207 0.589
0.33-1.07 Gyr -1.512 -0.199 0.443
1.07-3.52 Gyr -2.023 -0.176 0.230
3.52-11.52 Gyr -2.632 -0.206 0.116
11.52-12.80 Gyr -2.631 -0.204 0.462

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.832 10.904 10.971
{\rm log}_{10}({\rm SFR}) 0.053 0.410 0.801
{\rm log}_{10}({\rm sSFR}) -10.880 -10.508 -10.061
{\rm stellar\ age} 7.790 10.404 11.947

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.741 -0.475 -0.327
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.788 -0.877 0.207

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.201 0.320 0.518
\delta -0.750 -0.457 -0.162
\tau_1/\tau_2 0.681 1.178 1.638
Q_{PAH} 0.335 0.950 1.964
U_{min} 1.987 6.213 12.789
{\rm log}_{10}(\gamma_e)\, -3.582 -2.982 -1.946

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.369 -3.450 -2.513
{\rm log}_{10}(\tau_{AGN})\, 1.050 1.535 1.902

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.559 -0.013 0.263
0.03-0.10 Gyr 0.077 0.509 0.937
0.10-0.33 Gyr -0.896 0.109 0.612
0.33-1.07 Gyr -2.668 -0.679 0.018
1.07-3.52 Gyr -2.322 -0.605 0.137
3.52-11.52 Gyr -0.474 0.732 1.100
11.52-12.80 Gyr 0.974 1.862 2.094