2026acai results

Information

Transient
Name:AT2026acai
Right ascension: 23h07m40.55s
Declination:16d49m46.19s
Discovery Date:Sept. 13, 2026, 10:31 p.m.
Classification:None
Redshift:None
MW E(B-V):0.125
Host
Name:J230740.52+164944.21
Object ID:9906627745354156
Catalog Name:decals
Catalog Release:dr9
Right ascension: 23h07m40.52s
Declination:16d49m44.21s
Redshift:None
Photometric Redshift:0.036
 

Cutout Download Report

Downloadable Unavailable
2MASS_H
2MASS_J
2MASS_K
WISE_W1
WISE_W2
WISE_W3
WISE_W4
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_z
GALEX_NUV
GALEX_FUV
DES_i
DES_Y
 

Processing Status: completed

Task Name Status Time (s)
Cutout download processed 17.77
Transient MWEBV processed 0.17
Host match processed 5.8
Host information processed 0.06
Host MWEBV processed 0.13
Host spectrum download processed 0.12
Global aperture construction processed 0.7
Global aperture photometry processed 7.36
Validate global photometry processed 18.79
Global host SED inference processed 323.6
Local aperture photometry processed 7.0
Validate local photometry processed 0.03
Local host SED inference processed 412.42
 

Imaging data


 

Spectral Energy Distribution



 

Host Galaxy Spectrum


 

Host SED inference


Local parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 9.994 10.113 10.236
{\rm log}_{10}({\rm SFR}) -1.378 -0.400 0.268
{\rm log}_{10}({\rm sSFR}) -11.438 -10.540 -9.788
{\rm stellar\ age} 5.842 7.715 9.184

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -1.344 -0.719 -0.343
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.399 -0.455 0.230

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.387 0.919 1.412
\delta -0.412 -0.087 0.254
\tau_1/\tau_2 0.696 0.989 1.309
Q_{PAH} 0.313 1.311 3.690
U_{min} 2.862 7.659 15.008
{\rm log}_{10}(\gamma_e)\, -3.023 -1.710 -0.570

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.055 -1.681 -0.445
{\rm log}_{10}(\tau_{AGN})\, 0.935 1.346 1.879

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.584 -0.419 0.265
0.03-0.10 Gyr -1.542 -0.493 0.245
0.10-0.33 Gyr -1.493 -0.580 0.199
0.33-1.09 Gyr -1.540 -0.594 0.115
1.09-3.61 Gyr -1.068 -0.180 0.281
3.61-11.94 Gyr -0.175 0.251 0.411
11.94-13.27 Gyr -0.502 0.262 0.860

Global parameter details

Documentation

Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\, 10.541 10.647 10.732
{\rm log}_{10}({\rm SFR}) -0.665 -0.069 0.261
{\rm log}_{10}({\rm sSFR}) -11.308 -10.728 -10.359
{\rm stellar\ age} 6.128 7.464 8.481

Metallicity parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot}) -0.725 -0.503 -0.328
{\rm log}_{10}(Z_{gas}/Z_{\odot})\, -1.439 -0.646 0.070

Dust parameters
Parameter Lower (16%) Median (50%) Upper (84%)
\tau_2 0.327 0.464 0.637
\delta -0.511 -0.121 0.200
\tau_1/\tau_2 0.677 0.991 1.296
Q_{PAH} 1.933 3.188 4.941
U_{min} 2.429 6.823 14.341
{\rm log}_{10}(\gamma_e)\, -3.413 -2.807 -2.055

AGN parameters
Parameter Lower (16%) Median (50%) Upper (84%)
{\rm log}_{10}(f_{AGN})\, -4.325 -3.417 -2.481
{\rm log}_{10}(\tau_{AGN})\, 1.036 1.524 1.930

Binned star formation history
Lookback time Lower (16%) Median (50%) Upper (84%)
0.00-0.03 Gyr -1.018 -0.160 0.188
0.03-0.10 Gyr -0.778 -0.083 0.319
0.10-0.33 Gyr -0.555 0.008 0.423
0.33-1.09 Gyr -0.318 0.171 0.589
1.09-3.61 Gyr 0.065 0.534 0.837
3.61-11.94 Gyr 0.499 0.787 0.929
11.94-13.27 Gyr 0.115 0.719 1.227
 

Aperture Photometry


Aperture details

RA, DEC (J2000):23h07m40.55s, 16d49m46.19s
semi major axis, semi minor axis (arcsec):2.77, 2.77
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 68.71 3.49 19.307 0.055 AB
SDSS_g 303.72 4.61 17.694 0.016 AB
DES_g 313.67 0.74 17.659 0.003 AB
PanSTARRS_g 322.7 0.69 17.628 0.002 AB
SDSS_r 704.32 7.02 16.781 0.011 AB
PanSTARRS_r 715.74 0.9 16.763 0.001 AB
DES_r 787.64 1.89 16.659 0.003 AB
SDSS_i 1135.2 8.98 16.262 0.009 AB
PanSTARRS_i 1090.87 1.17 16.306 0.001 AB
PanSTARRS_z 1487.95 2.15 15.969 0.002 AB
SDSS_z 1675.98 14.83 15.839 0.010 AB
DES_z 1623.34 8.25 15.874 0.006 AB
PanSTARRS_y 1853.36 5.01 15.730 0.003 AB

Aperture details

RA, DEC (J2000):23h07m40.51s, 16d49m44.34s
semi major axis, semi minor axis (arcsec):24.07, 9.74
angle (degrees, anti-clockwise from east):355.21
Filter Flux {\rm (\mu Jy)} Flux error {\rm (\mu Jy)} Mag Mag error Mag sys
SDSS_u 379.82 16.58 17.451 0.047 AB
SDSS_g 1458.58 11.11 15.990 0.008 AB
DES_g 1577.22 1.78 15.905 0.001 AB
PanSTARRS_g 1603.56 3.29 15.887 0.002 AB
SDSS_r 3100.92 16.39 15.171 0.006 AB
PanSTARRS_r 3259.71 4.04 15.117 0.001 AB
DES_r 3535.95 4.18 15.029 0.001 AB
SDSS_i 4838.59 21.31 14.688 0.005 AB
PanSTARRS_i 4722.09 5.65 14.715 0.001 AB
PanSTARRS_z 6215.37 10.76 14.416 0.002 AB
SDSS_z 6957.69 61.36 14.294 0.010 AB
DES_z 6732.5 17.18 14.330 0.003 AB
PanSTARRS_y 7941.02 26.96 14.150 0.004 AB
2MASS_J 10414.53 367.87 12.961 0.038 Vega
2MASS_H 12908.57 497.08 12.255 0.042 Vega
2MASS_K 10841.42 687.69 11.974 0.069 Vega
WISE_W1 5640.93 48.76 11.823 0.009 Vega
WISE_W2 3334.26 55.38 11.754 0.018 Vega
WISE_W3 9847.1 196.21 8.743 0.022 Vega
WISE_W4 10524.6 1326.03 7.224 0.137 Vega