The β Pictoris b Hill sphere transit campaign - II. Searching for the signatures of the β Pictoris exoplanets through time delay analysis of the δ Scuti pulsations

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Table 2

Various parameters of the planets β Pictoris b and c based on Lacour et al. (2021).

Parameter	Unit	β Pictoris b	β Pictoris c
Mass	M_J	${11.90}_{- 3.04}^{+ 2.93}$ $11.90_{ - 3.04}^{ + 2.93}$	${8.89}_{- 0.75}^{+ 0.75}$ $8.89_{ - 0.75}^{ + 0.75}$
a	au	${9.93}_{- 0.03}^{+ 0.03}$ ${9.93_{ - 0.03}^{ + 0.03}}$	${2.68}_{- 0.02}^{+ 0.02}$ ${2.68_{ - 0.02}^{ + 0.02}}$
e	–	${0.103}_{- 0.003}^{+ 0.003}$ ${0.103_{ - 0.003}^{ + 0.003}}$	${0.32}_{- 0.02}^{+ 0.02}$ ${0.32_{ - 0.02}^{ + 0.02}}$
i	o	${89.00}_{- 0.01}^{+ 0.00}$ ${89.00_{ - 0.01}^{ + 0.00}}$	${88.95}_{- 0.10}^{+ 0.09}$ ${88.95_{ - 0.10}^{ + 0.09}}$
ϖ^(a)	o	${199.3}_{- 3.1}^{+ 2.8}$ ${199.3_{ - 3.1}^{ + 2.8}}$	${66.0}_{- 1.7}^{+ 1.8}$ ${66.0_{ - 1.7}^{ + 1.8}}$
τ ^(*)	–	${0.719}_{- 0.010}^{+ 0.008}$ ${0.719_{ - 0.010}^{ + 0.008}}$	${0.724}_{- 0.006}^{+ 0.006}$ ${0.724_{ - 0.006}^{ + 0.006}}$
P	yr	${23.61}_{- 0.09}^{+ 0.09}$ ${23.61_{ - 0.09}^{ + 0.09}}$	3.34 ± 0.04
P	days	$8623_{- 32}^{+ 31}$ $8623_{ - 32}^{ + 31}$	1221 ± 15
t_p^(c)	MJD	65243	59888

Notes. ^(a)The argument of periastron ϖ reported in Lacour et al. (2021) follows the definition in Blunt et al. (2020) and therefore refers to the orbit of the companion and not to the star. In this paper, however, we refer to the orbit of the star when we use ϖ. ^(b)Reference epoch MJD 59000 (31 May 2020). ^(c)Derived from τ .

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