Detection of Fe and Ti on the dayside of the ultrahot Jupiter MASCARA-1b with CARMENES

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Volume 687 (July 2024)

A&A, 687 (2024) A103

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Table 4

Parameter values from the T–P profile retrieval.

Parameter (unit)	Free retrieval	Chemical equilibrium	Boundaries
T₁ (K)	$4200_{- 500}^{+ 600}$ $\[4200_{-500}^{+600}\]$	$4500_{- 600}^{+ 900}$ $\[4500_{-600}^{+900}\]$	2000 to 6000
log P₁ (log bar)	$- {5.3}_{- 1.2}^{+ 2.3}$ $\[-5.3_{-1.2}^{+2.3}\]$	$- {5.4}_{- 1.0}^{+ 1.3}$ $\[-5.4_{-1.0}^{+1.3}\]$	−7 to 0
T₂ (K)	$2500_{- 1000}^{+ 800}$ $\[2500_{-1000}^{+800}\]$	$2300_{- 900}^{+ 800}$ $\[2300_{-900}^{+800}\]$	1000 to 5000
dP (log bar)	${4.0}_{- 2.2}^{+ 2.0}$ $\[4.0_{-2.2}^{+2.0}\]$	${4.2}_{- 1.8}^{+ 1.7}$ $\[4.2_{-1.8}^{+1.7}\]$	0 to +7
log P₂ (log bar)	$- {1.0}_{- 2.2}^{+ 2.3}$ $\[-1.0_{-2.2}^{+2.3}\]$	$- {1.2}_{- 1.4}^{+ 1.6}$ $\[-1.2_{-1.4}^{+1.6}\]$	...
β	0.90 ± 0.0003	0.90 ± 0.00025	0 to 10
α	${1.5}_{- 0.8}^{+ 1.6}$ $\[1.5_{-0.8}^{+1.6}\]$	${1.5}_{- 0.6}^{+ 1.4}$ $\[1.5_{-0.6}^{+1.4}\]$	0 to 10
log (Fe)	$- {3.6}_{- 1.8}^{+ 1.6}$ $\[-3.6_{-1.8}^{+1.6}\]$	...	−10 to 0
[3pt] [Fe/H] (dex)	$\sim {1.0}_{- 1.8}^{+ 1.6}$ $\[\sim 1.0_{-1.8}^{+1.6}\]$ ^(a)	${1.4}_{- 1.3}^{+ 1.1}$ $\[1.4_{-1.3}^{+1.1}\]$	−3 to +3
log (Ti)	$- {7.1}_{- 1.7}^{+ 1.8}$ $\[-7.1_{-1.7}^{+1.8}\]$	...	−10 to 0
[Ti/H] (dex)	$\sim {0.0}_{- 1.7}^{+ 1.8}$ $\[\sim 0.0_{-1.7}^{+1.8}\]$ ^(a)	${0.8}_{- 1.5}^{+ 1.2}$ $\[0.8_{-1.5}^{+1.2}\]$	−3 to +3
log (V)	<−7.7	...	−10 to 0
[3pt] υ_eq (km s⁻¹)	${4.4}_{- 2.0}^{+ 1.6}$ $\[4.4_{-2.0}^{+1.6}\]$	${4.1}_{- 1.9}^{+ 1.6}$ $\[4.1_{-1.9}^{+1.6}\]$	0 to 20
Δυ (km s⁻¹)	$- {1.2}_{- 0.6}^{+ 0.7}$ $\[-1.2_{-0.6}^{+0.7}\]$	−1.2 ± 0.5	−20 to 20
K_p (km s⁻¹)	${199.2}_{- 1.5}^{+ 1.4}$ $\[199.2_{-1.5}^{+1.4}\]$	199.4 ± 1.2	180 to 220

Notes. ^(a)In free retrieval, [Fe/H] is approximately calculated by assuming that the Fe element exists mainly in the form of Fe I and the atmosphere is mainly composed of H I.

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