2025alkp results

Information

Transient
Name:AT2025alkp
Right ascension: 16h10m05.62s
Declination:56d20m00.14s
Discovery Date:Oct. 30, 2025, 3:20 a.m.
Classification:None
Redshift:None
MW E(B-V):
Host
Name:J161005.67+561958.30
Right ascension: 16h10m05.67s
Declination:56d19m58.30s
Redshift:None
Photometric Redshift:0.034
 

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
SDSS_i
SDSS_r
SDSS_u
SDSS_z
SDSS_g
DES_g
DES_r
DES_i
DES_z
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 16.62
Transient MWEBV processed 0.04
Host match processed 4.59
Host information processed 0.16
Host MWEBV processed 0.03
Global aperture construction processed 2.74
Global aperture photometry processed 4.98
Validate global photometry processed 15.38
Global host SED inference processed 603.47
Local aperture photometry processed 4.91
Validate local photometry processed 0.02
Local host SED inference processed 448.89
 

Imaging data


 

Spectral Energy Distribution



 

Aperture Photometry


Aperture details

RA, DEC (J2000):16h10m05.62s, 56d20m00.14s
semi major axis, semi minor axis (arcsec):2.91, 2.91
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 4.31 2.81 22.313 0.708 AB
SDSS_g 12.42 1.25 21.164 0.109 AB
PanSTARRS_g 14.0 0.99 21.034 0.077 AB
SDSS_r 20.02 1.72 20.646 0.093 AB
PanSTARRS_r 16.86 0.91 20.833 0.059 AB
SDSS_i 19.54 2.27 20.673 0.126 AB
PanSTARRS_i 19.35 0.82 20.683 0.046 AB
PanSTARRS_z 21.44 2.01 20.572 0.102 AB
SDSS_z 47.53 10.13 19.708 0.231 AB
PanSTARRS_y 10.1 4.7 21.389 0.506 AB
2MASS_J -36.85 67.0 Vega
2MASS_H 98.66 101.32 17.547 1.115 Vega
2MASS_K -40.32 106.61 Vega

Aperture details

RA, DEC (J2000):16h10m05.74s, 56d19m57.46s
semi major axis, semi minor axis (arcsec):3.83, 2.18
angle (degrees, anti-clockwise from east):-136.47
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
GALEX_FUV 6.06 0.33 21.944 0.059 AB
GALEX_NUV 7.28 0.12 21.745 0.019 AB
SDSS_u 8.9 2.94 21.527 0.359 AB
SDSS_g 13.49 1.28 21.075 0.103 AB
PanSTARRS_g 13.41 0.98 21.082 0.079 AB
SDSS_r 21.95 1.73 20.547 0.086 AB
PanSTARRS_r 15.96 0.89 20.892 0.060 AB
SDSS_i 21.63 2.27 20.562 0.114 AB
PanSTARRS_i 17.66 0.79 20.782 0.049 AB
PanSTARRS_z 14.53 1.91 20.994 0.143 AB
SDSS_z 45.78 10.01 19.748 0.237 AB
PanSTARRS_y 2.95 4.45 22.727 1.639 AB
2MASS_J -53.3 90.94 Vega
2MASS_H 142.15 134.84 17.150 1.030 Vega
2MASS_K 60.78 144.74 17.603 2.586 Vega
WISE_W1 7.93 5.45 18.953 0.747 Vega
WISE_W2 7.18 6.25 18.420 0.944 Vega
WISE_W3 -32.87 22.49 Vega
WISE_W4 -254.67 162.2 Vega
 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.411 7.742 7.928
{\rm log}_{10}({\rm SFR}) -2.139 -1.519 -0.942
{\rm log}_{10}({\rm sSFR}) -10.060 -9.285 -8.335
{\rm stellar\ age} 0.697 4.799 6.850

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.417 -0.570 -0.017
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.520 -0.791 -0.063

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.246 0.659 1.137
\delta -0.499 -0.072 0.218
\tau_1/\tau_2 0.755 1.148 1.538
Q_{PAH} 1.094 3.184 5.490
U_{min} 2.911 8.277 15.616
{\rm log}_{10}(\gamma_e)\, -2.642 -1.484 -0.530

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -2.958 -0.769 0.035
{\rm log}_{10}(\tau_{AGN})\, 1.091 1.554 1.937

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -2.227 -1.694 -1.260
0.03-0.10 Gyr -2.274 -1.534 -0.831
0.10-0.33 Gyr -2.620 -1.786 -1.184
0.33-1.09 Gyr -3.357 -2.022 -1.620
1.09-3.62 Gyr -4.211 -2.292 -1.899
3.62-11.96 Gyr -4.562 -2.426 -2.004
11.96-13.29 Gyr -4.414 -2.492 -1.854

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 7.397 7.607 7.817
{\rm log}_{10}({\rm SFR}) -1.365 -0.741 -0.362
{\rm log}_{10}({\rm sSFR}) -9.029 -8.285 -7.924
{\rm stellar\ age} 0.082 1.801 6.670

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.835 -1.563 -1.130
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.539 -0.306 0.331

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.341 0.977 1.390
\delta 0.069 0.243 0.347
\tau_1/\tau_2 0.491 0.961 1.414
Q_{PAH} 1.337 3.225 5.147
U_{min} 3.965 10.522 18.282
{\rm log}_{10}(\gamma_e)\, -3.110 -1.903 -0.843

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -3.690 -1.888 -0.442
{\rm log}_{10}(\tau_{AGN})\, 1.016 1.500 1.875

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -3.357 -2.040 -1.354
0.03-0.10 Gyr -1.266 -0.597 -0.205
0.10-0.33 Gyr -4.065 -2.199 -1.282
0.33-1.09 Gyr -5.901 -3.147 -2.106
1.09-3.62 Gyr -7.093 -3.625 -2.275
3.62-11.96 Gyr -7.495 -3.686 -2.263
11.96-13.29 Gyr -7.657 -3.435 -1.991