2016ApJ...825..117B


Query : 2016ApJ...825..117B

2016ApJ...825..117B - Astrophys. J., 825, 117-117 (2016/July-2)

Improving estimates of m sin i by expanding RV data sets.

BROWN R.A.

Abstract (from CDS):

We develop new techniques for estimating the fractional uncertainty ( { \mathcal F } ) in the projected planetary mass (m sin i) resulting from Keplerian fits to radial-velocity (RV) data sets of known Jupiter-class exoplanets. The techniques include (1) estimating the distribution of m sin i using projection, (2) detecting and mitigating chimeras, a source of systematic error, and (3) estimating the reduction in the uncertainty in m sin i if hypothetical observations were made in the future. We demonstrate the techniques on a representative set of RV exoplanets, known as the Sample of 27, which are candidates for detection and characterization by a future astrometric direct imaging mission. We estimate the improvements (reductions) in { \mathcal F } due to additional, hypothetical RV measurements obtained in the future. We encounter and address a source of systematic error, "chimeras," which can appear when multiple types of Keplerian solutions are compatible with a single data set.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): methods: statistical - techniques: radial velocities

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1760 1
2 * eps Eri b Pl 03 32 55.8449634 -09 27 29.731165           ~ 111 1
3 HD 72659b Pl 08 34 03.1900792374 -01 34 05.579345170           ~ 40 1
4 HD 89307b Pl 10 18 21.2874119786 +12 37 15.991950715           ~ 29 1
5 * kap CrB PM* 15 51 13.9314685012 +35 39 26.564729663 6.69 5.82 4.82 4.06 3.57 K1IVa 244 1
6 * kap CrB b Pl 15 51 13.9314685012 +35 39 26.564729663           ~ 17 1

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2021.09.22-15:42:39

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