Extrasolar Planets and Their Host Stars

80 Pages·2017·2.014 MB·English

by  Dr. Kaspar von Braun, Dr. Tabetha Boyajian (auth.)

SPRINGER BRIEFS IN ASTRONOMY
Kaspar von Braun
Tabetha Boyajian
Extrasolar
Planets and Their
Host Stars
123
SpringerBriefs in Astronomy
SeriesEditors
MartinRatcliffe
ValleyCenter,Kansas,USA
WolfgangHillebrandt
MPIfürAstrophysik,Garching,Germany
MichaelInglis
LongIsland,NewYork,USA
DavidWeintraub
VanderbiltUniversity,Nashville,Tennessee,USA
Moreinformationaboutthisseriesathttp://www.springer.com/series/10090
Kaspar von Braun (cid:129) Tabetha Boyajian
Extrasolar Planets and Their
Host Stars
123
KasparvonBraun TabethaBoyajian
LowellObservatory DepartmentofPhysics&Astronomy
Flagstaff,AZ,USA LouisianaStateUniversity
BatonRouge,LA,USA
ISSN2191-9100 ISSN2191-9119 (electronic)
SpringerBriefsinAstronomy
ISBN978-3-319-61196-9 ISBN978-3-319-61198-3 (eBook)
DOI10.1007/978-3-319-61198-3
LibraryofCongressControlNumber:2017944315
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Preface
In astronomy or indeed any collaborative environment, it pays to figure out with
whomonecanworkwell.Fromexistingprojectsorsimplyconversations,research
ideas appear, are developed, take shape, sometimes take a detour into some
unexpecteddirections,oftenneedtoberefocused,aresometimesdividedupand/or
distributed among collaborators, and are (hopefully) published. After a number of
these cycles repeat, something bigger may be born, all of which one then tries to
simultaneouslyfitintoone’sheadforwhatfeelslikeachallengingamountoftime.
ThatwascertainlythecasealongtimeagowhenwritingaPhDdissertation.
Since then, there have been postdoctoral fellowships and appointments, perma-
nent and adjunct positions, and former, current, and future collaborators. And yet,
conversationsspawnresearchideas,whichtakemanydifferentturnsandmaydivide
up into a multitude of approaches or related or perhaps unrelated subjects. Again,
one had better figure out with whom one likes to work. And again, in the process
of writing this Brief, one needs create something bigger by focusing the relevant
piecesofworkintoone(hopefully)coherentmanuscript.Itisanhonor,aprivilege,
an amazing experience, and simply a lot of fun to be and have been working with
allthepeoplewhohavehadaninfluenceonourworkandtherebyonthisbook.
ToquotethelateandgreatJimCroce:“Ifyoudigit,doit.Ifyoureallydigit,do
ittwice.”
Pasadena,CA,USA KasparvonBraun
BatonRouge,LA,USA TabethaBoyajian
January2017
v
Acknowledgements
Firstand foremost,we would liketo express our sincere gratitude to our principal
collaborators,GerardT.vanBelle,StephenR.Kane,GailSchaefer,AndrewMann,
Gregory Feiden, David R. Ciardi, Tim White, and Theo ten Brummelaar, for
their scientific contributions to this work over the course of the past 7 years.
We furthermore thank the CHARA gang (Chris Farrington, PJ Goldfinger, Nic
Scott,NormVargas,OlliMajoinen,JuditSturmann,LaszloSturmann,NilsTurner)
for their tireless and invaluable support of observing operations at the Array.
Thanks to Barbara Rojas-Ayala, Phil Muirhead, Eric Gaidos, Daniel Huber, Hal
McAlister, Stephen Ridgway, Sean Raymond, Douglas Gies, Orlagh Creevey,
and Lisa Kaltenegger for multiple insightful and useful discussions on various
aspects of this work. This work is based upon observations obtained with the
Georgia State University Center for High Angular Resolution Astronomy Array
at Mount Wilson Observatory. The CHARA Array is supported by the National
ScienceFoundationunderGrantNo.AST-1211929.Institutionalsupporthasbeen
provided from the GSU College of Arts and Sciences and the GSU Office of
the Vice President for Research and Economic Development. This research made
use of the SIMBAD and VIZIER Astronomical Databases, operated at CDS,
Strasbourg,France(http://cdsweb.u-strasbg.fr/),andofNASA’sAstrophysicsData
System,oftheJean-MarieMariottiCenterSearchCalservice(http://www.jmmc.
fr/searchcal), co-developed by FIZEAU and LAOG/IPAG. This publication makes
use of data products from the Two Micron All Sky Survey, which is a joint
projectoftheUniversityofMassachusettsandtheInfraredProcessingandAnalysis
Center/CaliforniaInstituteofTechnology,fundedbytheNationalAeronauticsand
SpaceAdministrationandtheNationalScienceFoundation.Thisresearchmadeuse
of the NASA Exoplanet Archive (Akeson et al. 2013), which is operated by the
California Institute of Technology, under contract with the National Aeronautics
and Space Administration under the Exoplanet Exploration Program. This work
furthermore made use of the Habitable Zone Gallery at hzgallery.org (Kane and
Gelino 2012), the Exoplanet Orbit Database and the Exoplanet Data Explorer at
exoplanets.org (Wright et al. 2011), and the Exoplanet Encyclopedia at exoplanet.
eu(Schneideretal.2011).
vii
viii Acknowledgements
References
AkesonR.L.etal.,2013,PASP,125,989
KaneS.R.,GelinoD.M.,2012,PASP,124,323
SchneiderJ.,DedieuC.,LeSidanerP.,SavalleR.,ZolotukhinI.,2011,A&A,532,A79
WrightJ.T.etal.,2011,PASP,123,412
Contents
1 Introduction ................................................................... 1
2 TheDeterminationofStellarandPlanetaryAstrophysical
Parameters..................................................................... 5
2.1 StellarRadius ............................................................ 5
2.2 StellarEffectiveTemperatureandLuminosity ......................... 13
2.3 WhyInterferometry?..................................................... 16
2.4 SystemHabitableZone.................................................. 17
2.5 TransitingPlanets........................................................ 19
References...................................................................... 20
3 Results.......................................................................... 23
3.1 CurrentStatus ............................................................ 23
3.2 SelectedIndividualSystems............................................. 40
3.2.1 51Pegasi........................................................ 40
3.2.2 GJ581........................................................... 41
3.2.3 GJ15A.......................................................... 43
3.2.4 GJ876........................................................... 43
3.2.5 61Vir ........................................................... 44
3.2.6 HD69830....................................................... 45
3.2.7 HR8799 ........................................................ 45
3.2.8 55Cancri........................................................ 46
3.2.9 GJ436........................................................... 49
3.2.10 HD209458 ..................................................... 51
3.2.11 HD189733 ..................................................... 52
3.2.12 HD219134 ..................................................... 53
3.2.13 OtherSystems .................................................. 53
3.3 SummaryofResults ..................................................... 54
References...................................................................... 54
ix
x Contents
4 FutureWork................................................................... 61
4.1 ThePossible:FutureTargets ............................................ 61
4.2 TheImpossible:IndirectMethods,Limits,andBeyond ............... 62
References...................................................................... 64
5 SummaryandConclusion.................................................... 67
Glossary............................................................................ 69
Index................................................................................ 73