Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extrasolar planets and brown dwarfs around AF-type stars. X.The SOPHIE
  northern sample. Combining the SOPHIE and HARPS surveys to compute the close
  giant planet mass-period distribution around AF-type stars   The impact of the stellar mass on the giant planet properties is still to be
fully understood. Main-Sequence (MS) stars more massive than the Sun remain
relatively unexplored in radial velocity (RV) surveys, due to their
characteristics that hinder classical RV measurements. Our aim is to
characterize the close (up to 2.5 au) giant planet (GP) and brown dwarf (BD)
population around AF MS stars and compare this population to stars with
different masses. We used the SOPHIE spectrograph located on the 1.93m
telescope at Observatoire de Haute-Provence to observe 125 northern, MS AF
dwarfs. We used our dedicated SAFIR software to compute the RV and other
spectroscopic observables. We characterized the detected sub-stellar companions
and computed the GP and BD occurrence rates combining the present SOPHIE survey
and a similar HARPS survey. We present new data on two known planetary systems
around the F5-6V dwarfs HD16232 and HD113337. For the latter, we report an
additional RV variation that might be induced by a second GP on a wider orbit.
We also report the detection of fifteen binaries or massive sub-stellar
companions with high-amplitude RV variations or long-term RV trends. Based on
225 targets observed with SOPHIE or HARPS, we constraint the BD frequency
within 2-3 au around AF stars to be below 4 percents (1-sigma). For
Jupiter-mass GP within 2-3 au (periods below 1000 days), we found the
occurrence rate to be 3.7 (+3/-1) percents around AF stars with masses below
1.5 solar masses, and to be below 6 percents around AF stars with masses above
1.5 solar masses. For periods smaller than 10 days, we find the GP occurrence
rate to be below 3 or 4.5 percents, respectively. Our results are compatible
with the GP frequency reported around FGK dwarfs and are compatible with a
possible increase of GP orbital periods with the stellar mass as predicted by
formation models.

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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: hep-th
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The categories of this paper are: nucl-th