國立虎尾科技大學 |

Radial-velocity Searches for Planets Around Active Stars

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Radial-velocity Searches for Planets Around Active Stars/ by Raphaëlle D. Haywood.
作者:	Haywood, Raphaëlle D.
面頁冊數:	XV, 140 p. 60 illus., 57 illus. in color.online resource. :
Contained By:	Springer Nature eBook
標題:	Observations, Astronomical. -
電子資源:	https://doi.org/10.1007/978-3-319-41273-3
ISBN:	9783319412733

Radial-velocity Searches for Planets Around Active Stars
Haywood, Raphaëlle D.

Radial-velocity Searches for Planets Around Active Stars[electronic resource] /by Raphaëlle D. Haywood. - 1st ed. 2016. - XV, 140 p. 60 illus., 57 illus. in color.online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053. - Springer Theses, Recognizing Outstanding Ph.D. Research,.

Introduction: the Hunt for Extra-solar Planets -- A Toolkit to Detect Planets Around Active Stars -- Application to Observations of Planet-hosting Stars -- An Exploration into the Radial-velocity Variability of the Sun -- Conclusion.

This thesis develops new and powerful methods for identifying planetary signals in the presence of “noise” generated by stellar activity, and explores the physical origin of stellar intrinsic variability, using unique observations of the Sun seen as a star. In particular, it establishes that the intrinsic stellar radial-velocity variations mainly arise from suppression of photospheric convection by magnetic fields. With the advent of powerful telescopes and instruments we are now on the verge of discovering real Earth twins in orbit around other stars. The intrinsic variability of the host stars themselves, however, currently remains the main obstacle to determining the masses of such small planets. The methods developed here combine Gaussian-process regression for modeling the correlated signals arising from evolving active regions on a rotating star, and Bayesian model selection methods for distinguishing genuine planetary signals from false positives produced by stellar magnetic activity. The findings of this thesis represent a significant step towards determining the masses of potentially habitable planets orbiting Sun-like stars. .

ISBN: 9783319412733

Standard No.: 10.1007/978-3-319-41273-3doiSubjects--Topical Terms:

1254353
Observations, Astronomical.

LC Class. No.: QB4

Dewey Class. No.: 520

Radial-velocity Searches for Planets Around Active Stars
LDR:02824nam a22004095i 4500 001 976529
003 DE-He213
005 20200701154557.0
007 cr nn 008mamaa
008 201211s2016 gw | s |||| 0|eng d
020 $a 9783319412733 $9 978-3-319-41273-3
024 7 $a 10.1007/978-3-319-41273-3 $2 doi
035 $a 978-3-319-41273-3
050 4 $a QB4
072 7 $a PG $2 bicssc
072 7 $a SCI004000 $2 bisacsh
072 7 $a PG $2 thema
082 0 4 $a 520 $2 23
100 1 $a Haywood, Raphaëlle D. $e author. $4 aut $4 http://id.loc.gov/vocabulary/relators/aut $3 1270528
245 1 0 $a Radial-velocity Searches for Planets Around Active Stars $h [electronic resource] / $c by Raphaëlle D. Haywood.
250 $a 1st ed. 2016.
264 1 $a Cham : $b Springer International Publishing : $b Imprint: Springer, $c 2016.
300 $a XV, 140 p. 60 illus., 57 illus. in color. $b online resource.
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
347 $a text file $b PDF $2 rda
490 1 $a Springer Theses, Recognizing Outstanding Ph.D. Research, $x 2190-5053
505 0 $a Introduction: the Hunt for Extra-solar Planets -- A Toolkit to Detect Planets Around Active Stars -- Application to Observations of Planet-hosting Stars -- An Exploration into the Radial-velocity Variability of the Sun -- Conclusion.
520 $a This thesis develops new and powerful methods for identifying planetary signals in the presence of “noise” generated by stellar activity, and explores the physical origin of stellar intrinsic variability, using unique observations of the Sun seen as a star. In particular, it establishes that the intrinsic stellar radial-velocity variations mainly arise from suppression of photospheric convection by magnetic fields. With the advent of powerful telescopes and instruments we are now on the verge of discovering real Earth twins in orbit around other stars. The intrinsic variability of the host stars themselves, however, currently remains the main obstacle to determining the masses of such small planets. The methods developed here combine Gaussian-process regression for modeling the correlated signals arising from evolving active regions on a rotating star, and Bayesian model selection methods for distinguishing genuine planetary signals from false positives produced by stellar magnetic activity. The findings of this thesis represent a significant step towards determining the masses of potentially habitable planets orbiting Sun-like stars. .
650 0 $a Observations, Astronomical. $3 1254353
650 0 $a Astronomy—Observations. $3 1254354
650 0 $a Astrophysics. $3 646223
650 0 $a Space sciences. $3 715034
650 0 $a Astrobiology. $3 672804
650 1 4 $a Astronomy, Observations and Techniques. $3 769023
650 2 4 $a Astrophysics and Astroparticles. $3 782546
650 2 4 $a Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics). $3 1114976
710 2 $a SpringerLink (Online service) $3 593884
773 0 $t Springer Nature eBook
776 0 8 $i Printed edition: $z 9783319412726
776 0 8 $i Printed edition: $z 9783319412740
776 0 8 $i Printed edition: $z 9783319823102
830 0 $a Springer Theses, Recognizing Outstanding Ph.D. Research, $x 2190-5053 $3 1253569
856 4 0 $u https://doi.org/10.1007/978-3-319-41273-3
912 $a ZDB-2-PHA
912 $a ZDB-2-SXP
950 $a Physics and Astronomy (SpringerNature-11651)
950 $a Physics and Astronomy (R0) (SpringerNature-43715)