J/ApJ/825/62 Stars with Mpsin(i)>0.1MJup hot Jupiter (Schlaufman+, 2016)
The occurrence of additional giant planets inside the water-ice line in systems
with hot jupiters: evidence against high-eccentricity migration.
Schlaufman K.C., Winn J.N.
<Astrophys. J., 825, 62-62 (2016)>
=2016ApJ...825...62S 2016ApJ...825...62S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets
Keywords: planetary systems; planets and satellites: detection;
planets and satellites: formation; stars: statistics
Abstract:
The origin of Jupiter-mass planets with orbital periods of only a few
days is still uncertain. It is widely believed that these planets
formed near the water-ice line of the protoplanetary disk, and
subsequently migrated into much smaller orbits. Most of the proposed
migration mechanisms can be classified either as disk-driven
migration, or as excitation of a very high eccentricity followed by
tidal circularization. In the latter scenario, the giant planet that
is destined to become a hot Jupiter spends billions of years on a
highly eccentric orbit, with apastron near the water-ice line.
Eventually, tidal dissipation at periastron shrinks and circularizes
the orbit. If this is correct, then it should be especially rare for
hot Jupiters to be accompanied by another giant planet interior to the
water-ice line. Using the current sample of giant planets discovered
with the Doppler technique, we find that hot Jupiters with Porb<10d
are no more or less likely to have exterior Jupiter-mass companions
than longer-period giant planets with Porb≥10d. This result holds
for exterior companions both inside and outside of the approximate
location of the water-ice line. These results are difficult to
reconcile with the high-eccentricity migration scenario for hot
Jupiter formation.
Description:
We use exoplanets.org to identify all giant exoplanets with
Mpsin(i)>0.1MJup discovered by the Doppler technique (Wright et
al. 2011, J/PASP/123/412; Han et al. 2014PASP..126..827H 2014PASP..126..827H).
See section 2 for further explanations.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 13 225 Exoplanet systems in our Doppler sample
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See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
J/ApJ/821/89 : 12yrs of RV obs. of exoplanet systems (Bryan+, 2016)
J/A+A/587/A64 : Physical properties of giant exoplanets (Santerne+, 2016)
J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)
J/ApJ/709/168 : Eccentric orbits in exoplanets (Anglada-Escude+, 2010)
J/ApJ/697/544 : Planets orbiting metal-poor dwarfs. II. (Sozzetti+, 2009)
J/ApJ/693/1084 : Ten new and updated multiplanet systems (Wright+, 2009)
J/A+A/496/513 : RV of 6 stars with long-period giant planets (Moutou+, 2009)
J/A+A/479/865 : CoRoT exoplanet candidates (Loeillet+, 2008)
http://exoplanets.org/ : Exoplanet Orbit Database home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name System identifier
12- 13 I2 --- N Number of planets with Mpsin(i)>0.1MJup
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 29-Aug-2016