Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100403171> ?p ?o ?g. }
- W3100403171 endingPage "1626" @default.
- W3100403171 startingPage "1616" @default.
- W3100403171 abstract "Of the approximately 350 extrasolar planets currently known, of order 10% orbit evolved stars with radii R* ≳ 2.5 R☉. These planets are of particular interest because they tend to orbit more massive hosts, and have been subjected to variable stellar insolation over their recent histories as their primaries evolved off the main sequence. Unfortunately, we have limited information about the physical properties of these planets, as they were all detected by the radial velocity method and none have been observed to transit. Here, we evaluate the prospects for detecting transits of planetary companions to giant stars. We show that several of the known systems have a priori transit probabilities of ≳10%, and about one transiting system is expected for the sample of host stars with R* ⩾ 2.5 R☉. Although the transits are expected to have very small amplitudes (∼few × 10−4) and long durations (≳50 hr), we argue that the difficulty with detecting these signals in broadband light is one of systematic errors and practicality rather than photon noise, even for modest aperture (∼1 m) telescopes. We propose a novel method that may overcome these difficulties, which uses narrowband measurements to isolate the thin ring of chromospheric emission expected at the limb of giant stars. The transit signals in these narrow bands are expected to be larger in magnitude and briefer in duration than in broadband emission, and thus alleviating many of the difficulties with transit detection in broadband emission. Finally, we point out that it may be possible to discover planetary companions to giant stars using Kepler, provided that a sufficient number of such targets are monitored." @default.
- W3100403171 created "2020-11-23" @default.
- W3100403171 creator A5029222325 @default.
- W3100403171 creator A5041693261 @default.
- W3100403171 creator A5088539346 @default.
- W3100403171 date "2009-08-03" @default.
- W3100403171 modified "2023-10-17" @default.
- W3100403171 title "DETECTING TRANSITS OF PLANETARY COMPANIONS TO GIANT STARS" @default.
- W3100403171 cites W1939930449 @default.
- W3100403171 cites W1963760477 @default.
- W3100403171 cites W1966153581 @default.
- W3100403171 cites W1967168818 @default.
- W3100403171 cites W1968828569 @default.
- W3100403171 cites W1969208934 @default.
- W3100403171 cites W1970260755 @default.
- W3100403171 cites W1975210529 @default.
- W3100403171 cites W1977679162 @default.
- W3100403171 cites W1983765941 @default.
- W3100403171 cites W1985063315 @default.
- W3100403171 cites W1990334877 @default.
- W3100403171 cites W2001363009 @default.
- W3100403171 cites W2001502424 @default.
- W3100403171 cites W2004651075 @default.
- W3100403171 cites W2014284906 @default.
- W3100403171 cites W2014915902 @default.
- W3100403171 cites W2024605337 @default.
- W3100403171 cites W2026586306 @default.
- W3100403171 cites W2032927073 @default.
- W3100403171 cites W2041932094 @default.
- W3100403171 cites W2042697770 @default.
- W3100403171 cites W2049865906 @default.
- W3100403171 cites W2055588986 @default.
- W3100403171 cites W2069964648 @default.
- W3100403171 cites W2075800316 @default.
- W3100403171 cites W2076564794 @default.
- W3100403171 cites W2076572859 @default.
- W3100403171 cites W2082552758 @default.
- W3100403171 cites W2083351405 @default.
- W3100403171 cites W2090946178 @default.
- W3100403171 cites W2092568339 @default.
- W3100403171 cites W2094670074 @default.
- W3100403171 cites W2097803775 @default.
- W3100403171 cites W2100916445 @default.
- W3100403171 cites W2103655040 @default.
- W3100403171 cites W2106723742 @default.
- W3100403171 cites W2107003980 @default.
- W3100403171 cites W2116001315 @default.
- W3100403171 cites W2123206376 @default.
- W3100403171 cites W2127282085 @default.
- W3100403171 cites W2136103161 @default.
- W3100403171 cites W2147930796 @default.
- W3100403171 cites W2150756303 @default.
- W3100403171 cites W2153203210 @default.
- W3100403171 cites W2160374032 @default.
- W3100403171 cites W2168747087 @default.
- W3100403171 cites W2622959903 @default.
- W3100403171 cites W2963540561 @default.
- W3100403171 cites W3098206564 @default.
- W3100403171 cites W3098229357 @default.
- W3100403171 cites W3098746927 @default.
- W3100403171 cites W3099219835 @default.
- W3100403171 cites W3099358989 @default.
- W3100403171 cites W3099830343 @default.
- W3100403171 cites W3100708188 @default.
- W3100403171 cites W3101533811 @default.
- W3100403171 cites W3102407746 @default.
- W3100403171 cites W3104774690 @default.
- W3100403171 cites W3106137916 @default.
- W3100403171 cites W3120960505 @default.
- W3100403171 cites W3125645638 @default.
- W3100403171 cites W4291158797 @default.
- W3100403171 cites W4292310310 @default.
- W3100403171 doi "https://doi.org/10.1088/0004-637x/701/2/1616" @default.
- W3100403171 hasPublicationYear "2009" @default.
- W3100403171 type Work @default.
- W3100403171 sameAs 3100403171 @default.
- W3100403171 citedByCount "50" @default.
- W3100403171 countsByYear W31004031712012 @default.
- W3100403171 countsByYear W31004031712013 @default.
- W3100403171 countsByYear W31004031712014 @default.
- W3100403171 countsByYear W31004031712015 @default.
- W3100403171 countsByYear W31004031712016 @default.
- W3100403171 countsByYear W31004031712017 @default.
- W3100403171 countsByYear W31004031712018 @default.
- W3100403171 countsByYear W31004031712021 @default.
- W3100403171 countsByYear W31004031712023 @default.
- W3100403171 crossrefType "journal-article" @default.
- W3100403171 hasAuthorship W3100403171A5029222325 @default.
- W3100403171 hasAuthorship W3100403171A5041693261 @default.
- W3100403171 hasAuthorship W3100403171A5088539346 @default.
- W3100403171 hasBestOaLocation W31004031711 @default.
- W3100403171 hasConcept C100905312 @default.
- W3100403171 hasConcept C121332964 @default.
- W3100403171 hasConcept C127413603 @default.
- W3100403171 hasConcept C1276947 @default.
- W3100403171 hasConcept C146978453 @default.
- W3100403171 hasConcept C150846664 @default.
- W3100403171 hasConcept C163479331 @default.