2025xhh

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Information

Transient

Name: AT2025xhh
Right ascension: 16h38m27.56s
Declination: 45d29m42.81s
Discovery Date: Sept. 11, 2025, 5:59 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.009

Host

Name: 2265926
Right ascension: 16h38m28.05s
Declination: 45d29m49.22s
Redshift: 0.058284
Photometric Redshift:
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 14.83
Transient MWEBV processed 0.07
Host match processed 4.98
Host information processed 0.11
Host MWEBV processed 0.04
Global aperture construction processed 0.64
Global aperture photometry processed 4.63
Validate global photometry processed 13.44
Global host SED inference processed 403.3
Local aperture photometry processed 5.05
Validate local photometry processed 0.02
Local host SED inference processed 436.89
 

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) = 16h38m27.56s, 45d29m42.81s
semi major axis, semi minor axis (arcsec) = 1.77, 1.77
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 5.89 1.27 21.975 0.234 AB
SDSS_g 23.86 1.34 20.456 0.061 AB
PanSTARRS_g 23.69 0.34 20.464 0.015 AB
SDSS_r 37.56 1.74 19.963 0.050 AB
PanSTARRS_r 37.51 0.44 19.965 0.013 AB
SDSS_i 48.86 2.13 19.678 0.047 AB
PanSTARRS_i 48.72 0.53 19.681 0.012 AB
PanSTARRS_z 56.38 1.02 19.522 0.020 AB
SDSS_z 63.41 5.14 19.395 0.088 AB
PanSTARRS_y 60.71 2.55 19.442 0.046 AB

Aperture details

RA, DEC (J2000) = 16h38m28.00s, 45d29m49.06s
semi major axis, semi minor axis (arcsec) = 15.96, 6.93
angle (degrees, anti-clockwise from east) = -125.45

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 206.62 7.67 18.112 0.040 AB
SDSS_g 810.25 7.83 16.628 0.010 AB
PanSTARRS_g 824.04 2.01 16.610 0.003 AB
SDSS_r 1347.94 10.46 16.076 0.008 AB
PanSTARRS_r 1376.81 2.62 16.053 0.002 AB
SDSS_i 1877.05 13.11 15.716 0.008 AB
PanSTARRS_i 1869.23 3.14 15.721 0.002 AB
PanSTARRS_z 2246.49 6.09 15.521 0.003 AB
SDSS_z 2485.18 30.94 15.412 0.014 AB
PanSTARRS_y 2625.73 15.27 15.352 0.006 AB
2MASS_J 3685.94 242.71 14.089 0.071 Vega
2MASS_H 3581.83 384.26 13.647 0.116 Vega
2MASS_K 3296.27 439.37 13.267 0.145 Vega
WISE_W1 1689.17 20.99 13.132 0.013 Vega
WISE_W2 1072.7 25.06 12.985 0.025 Vega
WISE_W3 3986.91 90.91 9.724 0.025 Vega
WISE_W4 3610.21 685.88 8.386 0.206 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})\, 8.711 8.844 8.953
{\rm log}_{10}({\rm SFR}) -2.545 -1.612 -0.809
{\rm log}_{10}({\rm sSFR}) -11.430 -10.484 -9.616
{\rm stellar\ age} 3.640 6.492 7.877

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.620 -1.096 -0.550
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.682 -0.832 0.125

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.188 0.591 1.091
\delta -0.449 -0.082 0.246
\tau_1/\tau_2 0.658 1.051 1.423
Q_{PAH} 1.116 3.152 5.427
U_{min} 2.826 8.348 15.293
{\rm log}_{10}(\gamma_e)\, -3.055 -2.058 -0.891

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.977 -0.456 0.063
{\rm log}_{10}(\tau_{AGN})\, 1.103 1.452 2.004

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.936 -1.977 -1.366
0.03-0.10 Gyr -2.696 -1.566 -0.676
0.10-0.33 Gyr -2.253 -1.293 -0.628
0.33-1.08 Gyr -2.018 -1.220 -0.698
1.08-3.55 Gyr -1.832 -1.133 -0.831
3.55-11.68 Gyr -1.864 -1.096 -0.887
11.68-12.98 Gyr -2.123 -1.119 -0.591

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.360 10.477 10.563
{\rm log}_{10}({\rm SFR}) -0.562 0.006 0.681
{\rm log}_{10}({\rm sSFR}) -11.085 -10.461 -9.732
{\rm stellar\ age} 6.059 7.335 8.658

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.659 -0.393 -0.261
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.408 -0.328 0.257

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.138 0.294 0.600
\delta -0.740 -0.372 0.067
\tau_1/\tau_2 0.719 1.068 1.445
Q_{PAH} 0.642 1.925 4.365
U_{min} 2.544 7.668 15.204
{\rm log}_{10}(\gamma_e)\, -2.476 -1.528 -0.606

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.566 -2.236 -1.430
{\rm log}_{10}(\tau_{AGN})\, 1.194 1.700 2.012

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.909 -0.246 0.072
0.03-0.10 Gyr -0.716 0.058 0.828
0.10-0.33 Gyr -0.602 0.216 0.756
0.33-1.08 Gyr -0.550 0.126 0.492
1.08-3.55 Gyr -0.162 0.347 0.642
3.55-11.68 Gyr 0.280 0.590 0.747
11.68-12.98 Gyr 0.039 0.664 1.209