2025qch

Download data

Information

Transient

Name: AT2025qch
Right ascension: 18h07m29.27s
Declination: 51d14m04.39s
Discovery Date: June 27, 2025, 8:15 a.m.
Classification: None
Redshift: None
MW E(B-V): 0.047

Host

Name:
Right ascension: 18h07m29.03s
Declination: 51d14m02.81s
Redshift: None
Photometric Redshift: 0.145

Processing Status: blocked

Task Name	Status	Time taken (s)
Cutout download	processed	12.96
Transient MWEBV	processed	0.05
Host match	processed	5.76
Host information	processed	0.14
Host MWEBV	processed	0.04
Global aperture construction	processed	0.66
Global aperture photometry	processed	4.94
Validate global photometry	processed	13.01
Global host SED inference	processed	510.07
Local aperture photometry	processed	5.53
Validate local photometry	no valid phot	0.02
Local host SED inference	not processed	None

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) = 18h07m29.27s, 51d14m04.39s
semi major axis, semi minor axis (arcsec) = 0.79, 0.79
angle (degrees, anti-clockwise from east) = 0.0

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys

Data not available

Aperture details

RA, DEC (J2000) = 18h07m28.99s, 51d14m02.69s
semi major axis, semi minor axis (arcsec) = 3.83, 1.64
angle (degrees, anti-clockwise from east) = -32.04

Filter	Flux {\rm (\mu Jy)}	Flux error {\rm (\mu Jy)}	Mag	Mag error	Mag sys
GALEX_FUV	6.74	2.15	21.828	0.346	AB
GALEX_NUV	3.99	1.43	22.397	0.388	AB
DES_g	26.02	0.31	20.362	0.013	AB
PanSTARRS_g	28.04	0.57	20.281	0.022	AB
PanSTARRS_r	59.63	0.74	19.461	0.013	AB
PanSTARRS_i	93.05	0.65	18.978	0.008	AB
PanSTARRS_z	125.33	1.87	18.655	0.016	AB
DES_z	131.78	2.04	18.600	0.017	AB
PanSTARRS_y	144.49	3.14	18.500	0.024	AB
2MASS_J	247.4	87.27	17.022	0.383	Vega
2MASS_H	495.14	150.26	15.796	0.329	Vega
2MASS_K	500.63	151.81	15.313	0.329	Vega
WISE_W1	251.96	9.18	15.198	0.040	Vega
WISE_W2	181.89	12.23	14.912	0.073	Vega
WISE_W3	521.56	40.66	11.933	0.085	Vega
WISE_W4	633.81	245.24	10.275	0.420	Vega

Imaging data

Click the image to load the interactive plot.

Spectral Energy Distribution

Host SED inference

Local parameter details

Documentation

Data not available

Global parameter details

Documentation

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(M_{\ast}/M_{\odot})\,	10.284	10.359	10.419
{\rm log}_{10}({\rm SFR})	-0.243	0.013	0.266
{\rm log}_{10}({\rm sSFR})	-10.594	-10.343	-10.101
{\rm stellar\ age}	5.438	6.579	7.641

Metallicity parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(Z_{\ast}/Z_{\odot})	-0.514	-0.226	0.011
{\rm log}_{10}(Z_{gas}/Z_{\odot})\,	-1.669	-1.003	0.007

Dust parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
\tau_2	0.790	0.976	1.190
\delta	0.251	0.335	0.383
\tau_1/\tau_2	0.451	0.814	1.176
Q_{PAH}	1.323	2.945	4.856
U_{min}	2.627	7.257	14.182
{\rm log}_{10}(\gamma_e)\,	-2.888	-1.986	-1.090

AGN parameters

Parameter	Lower (16%)	Median (50%)	Upper (84%)
{\rm log}_{10}(f_{AGN})\,	-3.854	-2.343	-1.431
{\rm log}_{10}(\tau_{AGN})\,	0.913	1.322	1.836

Binned star formation history

Lookback time	Lower (16%)	Median (50%)	Upper (84%)
0.00-0.03 Gyr	-0.162	0.103	0.334
0.03-0.10 Gyr	-0.493	-0.048	0.286
0.10-0.32 Gyr	-0.660	-0.152	0.199
0.32-1.04 Gyr	-0.592	-0.078	0.278
1.04-3.33 Gyr	0.018	0.416	0.698
3.33-10.72 Gyr	0.204	0.521	0.644
10.72-11.91 Gyr	-0.147	0.520	1.030