Radial velocity homogeneous analysis of M dwarfs observed with HARPS - II. Detection limits and planetary occurrence statistics

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Volume 700 (August 2025)

A&A, 700 (2025) A146

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Table 3

Rates’ dependence on the central mass.

Planetary mass range [M_⊕]	Sample [M_⊙]	Occurrence f Detections n_d	Period range [d]
Planetary mass range [M_⊕]	Sample [M_⊙]	Occurrence f Detections n_d	1.6-10	10-100	100-1000	1000-10000
100-3162	M_* < 0.35	f n_d	<2% 0	$4_{- 1}^{+ 5} %$ $\rm 4^{+5}_{-1} \%$ 2	<2% 0	<3% 0
100-3162	M_* > 0.35	f n_d	<0.7% 0	<0.7% 0	$2_{- 1}^{+ 2} %$ $\rm 2^{+2}_{-1}\%$ 2	$6_{- 2}^{+ 3} %$ $\rm 6^{+3}_{-2}\%$ 7
3.2-100	M_* < 0.35	f n_d	$16_{- 4}^{+ 9} %$ $\rm 16^{+9}_{-4} \%$ 5	$28_{- 8}^{+ 15} %$ $\rm 28^{+15}_{-8} \%$ 5	$15_{- 5}^{+ 11} %$ $\rm 15^{+11}_{-5} \%$ 3	<7 % 0
3.2-100	M_* > 0.35	f n_d	$14_{- 4}^{+ 7} %$ $\rm 14^{+7}_{-4} \%$ 7	$18_{- 5}^{+ 9} %$ $\rm 18^{+9}_{-5} \%$ 7	$20_{- 5}^{+ 9} %$ $\rm 20^{+9}_{-5}\%$ 7	<5% 0
<3.2	M_* < 0.35	f n_d	$115_{- 23}^{+ 20} %$ $\rm 115^{+20}_{-23} \%$ 10	− -	− -	− -
<3.2	M_* > 0.35	f n_d	$100_{- 36}^{+ 153} %$ $\mathit{100^{+153}_{-36} \% }$ 1	− -	− -	− -

Notes. Comparison between planetary occurrence rates in percent obtained from the sample of 145 massive M dwarfs (M_* > 0.35 M_⊙) and the sample of the 52 least massive ones (M_* < 0.35 M_⊙).

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