2025zhb

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Information

Transient

Name: AT2025zhb
Right ascension: 0h38m15.64s
Declination: -5d56m09.88s
Discovery Date: Sept. 25, 2025, 6:23 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.047

Host

Name:
Right ascension: 0h38m15.61s
Declination: -5d56m09.97s
Redshift: None
Photometric Redshift: 0.058
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 16.49
Transient MWEBV processed 0.04
Host match processed 5.08
Host information processed 0.13
Host MWEBV processed 0.05
Global aperture construction processed 0.61
Global aperture photometry processed 6.73
Validate global photometry processed 17.78
Global host SED inference processed 387.15
Local aperture photometry processed 6.85
Validate local photometry processed 0.03
Local host SED inference processed 435.95
 

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) = 0h38m15.64s, -5d56m09.88s
semi major axis, semi minor axis (arcsec) = 1.78, 1.78
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 14.23 1.76 21.017 0.135 AB
SDSS_g 28.9 1.55 20.248 0.058 AB
DES_g 34.54 0.2 20.054 0.006 AB
PanSTARRS_g 32.79 0.45 20.111 0.015 AB
SDSS_r 38.3 1.85 19.942 0.053 AB
PanSTARRS_r 39.93 0.38 19.897 0.010 AB
DES_r 50.41 0.29 19.644 0.006 AB
SDSS_i 51.42 2.35 19.622 0.050 AB
PanSTARRS_i 50.08 0.62 19.651 0.013 AB
PanSTARRS_z 50.76 1.13 19.636 0.024 AB
SDSS_z 50.0 5.7 19.653 0.124 AB
DES_z 61.91 0.85 19.421 0.015 AB
PanSTARRS_y 55.23 2.49 19.544 0.049 AB

Aperture details

RA, DEC (J2000) = 0h38m15.59s, -5d56m09.82s
semi major axis, semi minor axis (arcsec) = 4.56, 2.9
angle (degrees, anti-clockwise from east) = -87.89

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 8.96 1.96 21.519 0.238 AB
SDSS_u 26.53 3.43 20.341 0.140 AB
SDSS_g 50.93 2.36 19.633 0.050 AB
DES_g 51.3 0.27 19.625 0.006 AB
PanSTARRS_g 52.24 0.91 19.605 0.019 AB
SDSS_r 68.17 2.89 19.316 0.046 AB
PanSTARRS_r 64.34 0.75 19.379 0.013 AB
DES_r 73.18 0.39 19.239 0.006 AB
SDSS_i 80.0 3.78 19.142 0.051 AB
PanSTARRS_i 82.21 1.24 19.113 0.016 AB
PanSTARRS_z 82.59 2.24 19.108 0.030 AB
SDSS_z 63.54 11.29 19.392 0.193 AB
DES_z 89.28 1.12 19.023 0.014 AB
PanSTARRS_y 104.54 4.95 18.852 0.051 AB
2MASS_J 51.36 84.52 18.729 1.787 Vega
2MASS_H -6.43 126.08 Vega
2MASS_K -81.95 172.45 Vega
WISE_W1 38.18 7.33 17.246 0.209 Vega
WISE_W2 28.4 12.39 16.928 0.473 Vega
WISE_W3 69.89 53.22 14.115 0.827 Vega
WISE_W4 -36.46 367.02 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})\, 8.358 8.581 8.752
{\rm log}_{10}({\rm SFR}) -1.319 -0.937 -0.431
{\rm log}_{10}({\rm sSFR}) -9.986 -9.524 -8.894
{\rm stellar\ age} 2.389 4.934 6.631

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.283 -0.513 -0.038
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.712 -1.310 -0.300

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.119 0.294 0.588
\delta -0.708 -0.251 0.172
\tau_1/\tau_2 0.617 0.940 1.258
Q_{PAH} 0.756 2.638 5.293
U_{min} 3.439 8.472 15.399
{\rm log}_{10}(\gamma_e)\, -2.963 -1.638 -0.450

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.679 -0.733 -0.195
{\rm log}_{10}(\tau_{AGN})\, 0.998 1.459 1.963

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.264 -0.998 -0.739
0.03-0.10 Gyr -1.439 -0.916 -0.328
0.10-0.33 Gyr -1.328 -0.853 -0.481
0.33-1.08 Gyr -1.595 -1.053 -0.731
1.08-3.55 Gyr -1.929 -1.318 -1.043
3.55-11.68 Gyr -2.274 -1.532 -1.191
11.68-12.98 Gyr -2.412 -1.583 -1.029

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 8.517 8.708 8.878
{\rm log}_{10}({\rm SFR}) -1.165 -0.729 -0.333
{\rm log}_{10}({\rm sSFR}) -9.932 -9.446 -8.931
{\rm stellar\ age} 2.243 4.546 6.327

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.330 -0.579 -0.087
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -0.102 0.170 0.351

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.092 0.236 0.456
\delta -0.599 -0.123 0.177
\tau_1/\tau_2 0.826 1.183 1.513
Q_{PAH} 0.774 2.060 4.106
U_{min} 2.717 7.894 15.104
{\rm log}_{10}(\gamma_e)\, -2.653 -1.545 -0.608

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.712 -1.797 -0.887
{\rm log}_{10}(\tau_{AGN})\, 1.136 1.542 1.921

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.201 -0.943 -0.738
0.03-0.10 Gyr -1.213 -0.667 -0.219
0.10-0.33 Gyr -0.941 -0.538 -0.213
0.33-1.08 Gyr -1.458 -0.833 -0.522
1.08-3.55 Gyr -1.830 -1.203 -0.883
3.55-11.68 Gyr -2.175 -1.447 -1.083
11.68-12.98 Gyr -2.355 -1.446 -0.893