The warm-hot intergalactic medium in inter-cluster filaments - A forecast for HUBS observations based on eRASS1 superclusters

Home

All issues

Volume 695 (March 2025)

A&A, 695 (2025) A15

Full HTML

Open Access

Table 5.

Best-fit results for the HUBS mock spectra under the conservative case using the apec model. The mock exposure time is 1 Ms and the “full length” extraction region is used.

Filament Name	kT^(a)	Z^(b)	norm^(a)	C-stat/dof	Net counts ^(c)	δ_offset^(d)	δ_error^(d)
	(keV)	(solar)	(10⁻⁵ cm⁻⁵)	(10⁻⁵ cm⁻⁵)
J0935+1949	$0 . 10_{- 0.01}^{+ 0.01}$ $0.10_{-0.01}^{+0.01}$ (0.1)	0.2f(0.2)	$10 . 5_{- 3.2}^{+ 4.0}$ $10.5_{-3.2}^{+4.0}$ (9.8)	257.8/270	1379	3.4%	$_{- 16.5 %}^{+ 17.4 %}$ $_{-16.5\%}^{+17.4\%}$
J0945+3418	$0 . 10_{- 0.01}^{+ 0.01}$ $0.10_{-0.01}^{+0.01}$ (0.1)	0.2f(0.2)	$7 . 8_{- 1.5}^{+ 1.1}$ $7.8_{-1.5}^{+1.1}$ (7.7)	295.5/283	2566	0.4%	$_{- 10.4 %}^{+ 7.0 %}$ $_{-10.4\%}^{+7.0\%}$
J1214+2712	$0 . 10_{- 0.00}^{+ 0.00}$ $0.10_{-0.00}^{+0.00}$ (0.1)	0.2f(0.2)	$13 . 2_{- 2.2}^{+ 2.9}$ $13.2_{-2.2}^{+2.9}$ (12.3)	259.3/274	2548	3.7%	$_{- 8.9 %}^{+ 10.5 %}$ $_{-8.9\%}^{+10.5\%}$
J2300−4534	$0 . 10_{- 0.00}^{+ 0.00}$ $0.10_{-0.00}^{+0.00}$ (0.1)	0.2f(0.2)	$9 . 6_{- 1.4}^{+ 0.9}$ $9.6_{-1.4}^{+0.9}$ (7.9)	287.4/282	1903	9.9%	$_{- 7.5 %}^{+ 4.8 %}$ $_{-7.5\%}^{+4.8\%}$

Notes.

^(a)

Parameters kT and norm given in best-fit value with 68% confidence range, followed by the model value used for spectral simulation in parenthesis.

^(b)

Parameters Z given in fixed value followed by the model value used for spectral simulation in parenthesis.

^(c)

Net counts of the spectra in the 0.2–0.6 keV rest-frame energy range after background subtraction.

^(d)

δ_offset and δ_error are the deviation from simulation input value and 68% error of the best-fit value of the gas density inferred from norm fitting results following Eq. (5) respectively.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.