2025ljd

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Information

Transient

Name: AT2025ljd
Right ascension: 1h44m29.27s
Declination: 47d54m47.26s
Discovery Date: May 15, 2025, 11:50 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.162

Host

Name: 2025ljd
Right ascension: 1h44m29.38s
Declination: 47d54m45.75s
Redshift: 0.057122
Photometric Redshift: 0.062
 

Processing Status: completed

Task Name Status Time taken (s) Warning Flag
Cutout download processed 3.57
Transient MWEBV processed 0.09
Host match processed 2.52
Host information processed 0.08
Host MWEBV processed 0.04
Global aperture construction processed 0.66
Global aperture photometry processed 4.25
Validate global photometry processed 9.91
Global host SED inference processed 453.49
Local aperture photometry processed 4.03
Validate local photometry processed 0.02
Local host SED inference processed 449.54
 

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) = 1h44m29.27s, 47d54m47.26s
semi major axis, semi minor axis (arcsec) = 1.81, 1.81
angle (degrees, anti-clockwise from east) = 0.0

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
PanSTARRS_g 101.39 0.52 18.885 0.006 AB
PanSTARRS_r 206.02 0.7 18.115 0.004 AB
PanSTARRS_i 325.69 0.91 17.618 0.003 AB
PanSTARRS_z 396.36 1.69 17.405 0.005 AB
PanSTARRS_y 501.61 3.11 17.149 0.007 AB

Aperture details

RA, DEC (J2000) = 1h44m29.38s, 47d54m46.06s
semi major axis, semi minor axis (arcsec) = 9.64, 7.0
angle (degrees, anti-clockwise from east) = -112.67

Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_NUV 54.42 5.43 19.561 0.108 AB
PanSTARRS_g 527.75 2.18 17.094 0.004 AB
PanSTARRS_r 1042.13 2.92 16.355 0.003 AB
PanSTARRS_i 1618.69 3.94 15.877 0.003 AB
PanSTARRS_z 1987.93 7.33 15.654 0.004 AB
PanSTARRS_y 2490.42 13.88 15.409 0.006 AB
WISE_W1 1958.22 36.54 12.971 0.020 Vega
WISE_W2 1425.21 32.27 12.676 0.025 Vega
WISE_W3 6714.38 122.98 9.158 0.020 Vega
WISE_W4 14662.47 1124.5 6.864 0.083 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})\, 9.756 9.889 10.015
{\rm log}_{10}({\rm SFR}) -0.896 -0.397 0.054
{\rm log}_{10}({\rm sSFR}) -10.828 -10.295 -9.812
{\rm stellar\ age} 5.599 7.301 9.200

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.423 -0.804 -0.396
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.248 0.102 0.337

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.338 0.727 1.135
\delta -0.682 -0.256 0.109
\tau_1/\tau_2 0.645 0.978 1.307
Q_{PAH} 0.500 2.003 4.174
U_{min} 2.379 7.430 14.054
{\rm log}_{10}(\gamma_e)\, -3.410 -2.145 -0.944

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.724 -1.221 -0.466
{\rm log}_{10}(\tau_{AGN})\, 0.939 1.324 1.828

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.917 -0.532 -0.168
0.03-0.10 Gyr -1.029 -0.382 0.159
0.10-0.33 Gyr -1.129 -0.375 0.117
0.33-1.08 Gyr -1.220 -0.421 0.047
1.08-3.56 Gyr -0.985 -0.224 0.101
3.56-11.70 Gyr -0.459 -0.046 0.156
11.70-12.99 Gyr -0.522 0.101 0.735

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.540 10.595 10.688
{\rm log}_{10}({\rm SFR}) 0.332 0.603 0.911
{\rm log}_{10}({\rm sSFR}) -10.273 -10.000 -9.668
{\rm stellar\ age} 7.599 8.906 11.710

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.680 -0.381 -0.186
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, 0.063 0.286 0.411

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.199 0.332 0.535
\delta -0.476 -0.163 0.099
\tau_1/\tau_2 0.768 1.194 1.605
Q_{PAH} 0.360 0.932 2.083
U_{min} 2.621 7.531 15.135
{\rm log}_{10}(\gamma_e)\, -3.085 -1.863 -1.106

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -1.908 -1.493 -1.132
{\rm log}_{10}(\tau_{AGN})\, 1.274 1.641 1.907

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -0.179 0.288 0.566
0.03-0.10 Gyr 0.314 0.690 1.043
0.10-0.33 Gyr -1.030 -0.053 0.422
0.33-1.08 Gyr -1.923 -0.460 0.004
1.08-3.56 Gyr -1.719 -0.355 0.186
3.56-11.70 Gyr -0.163 0.683 0.827
11.70-12.99 Gyr 0.552 1.238 1.775