A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149

Mariangela Bonavita; Sebastian Daemgen; Silvano Desidera; Ray Jayawardhana; Markus Janson; David Lafreniere

doi:10.1088/2041-8205/791/2/L40

A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149

Mariangela Bonavita^*, Sebastian Daemgen, Silvano Desidera, Ray Jayawardhana, Markus Janson, David Lafreniere

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

Even though only a handful of sub-stellar companions have been found via direct imaging, each of these discoveries has had a tremendous impact on our understanding of the star formation process and the physics of cool atmospheres. Young stars are prime targets for direct imaging searches for planets and brown dwarfs due to the favorable brightness contrast expected at such ages and also because it is often possible to derive relatively good age estimates for these primaries. Here we present the direct imaging discovery of HD 284149 b, a 18-50 M-Jup companion at a projected separation of 400 AU from a young (25(10)(+25) Myr) F8 star, with which it shares common proper motion.

Original language	English
Article number	40
Number of pages	5
Journal	Astrophysical Journal Letters
Volume	791
Issue number	2
DOIs	https://doi.org/10.1088/2041-8205/791/2/L40
Publication status	Published - 20 Aug 2014

Keywords / Materials (for Non-textual outputs)

brown dwarfs
instrumentation: adaptive optics
methods: observational
planetary systems
stars: individual (HD 284149)
stars: pre-main sequence
SOLAR-TYPE STARS
TAURUS-AURIGA
UPPER SCORPIUS
BROWN DWARFS
EVOLUTIONARY MODELS
HR 8799
MASS
PLANET
DISCOVERY
CHAMELEON

Access to Document

10.1088/2041-8205/791/2/L40

Cite this

@article{5b3811239e1348caa43a7dbcd8ff4887,

title = "A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149",

abstract = "Even though only a handful of sub-stellar companions have been found via direct imaging, each of these discoveries has had a tremendous impact on our understanding of the star formation process and the physics of cool atmospheres. Young stars are prime targets for direct imaging searches for planets and brown dwarfs due to the favorable brightness contrast expected at such ages and also because it is often possible to derive relatively good age estimates for these primaries. Here we present the direct imaging discovery of HD 284149 b, a 18-50 M-Jup companion at a projected separation of 400 AU from a young (25(10)(+25) Myr) F8 star, with which it shares common proper motion.",

keywords = "brown dwarfs, instrumentation: adaptive optics, methods: observational, planetary systems, stars: individual (HD 284149), stars: pre-main sequence, SOLAR-TYPE STARS, TAURUS-AURIGA, UPPER SCORPIUS, BROWN DWARFS, EVOLUTIONARY MODELS, HR 8799, MASS, PLANET, DISCOVERY, CHAMELEON",

author = "Mariangela Bonavita and Sebastian Daemgen and Silvano Desidera and Ray Jayawardhana and Markus Janson and David Lafreniere",

year = "2014",

month = aug,

day = "20",

doi = "10.1088/2041-8205/791/2/L40",

language = "English",

volume = "791",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing",

number = "2",

}

TY - JOUR

T1 - A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149

AU - Bonavita, Mariangela

AU - Daemgen, Sebastian

AU - Desidera, Silvano

AU - Jayawardhana, Ray

AU - Janson, Markus

AU - Lafreniere, David

PY - 2014/8/20

Y1 - 2014/8/20

N2 - Even though only a handful of sub-stellar companions have been found via direct imaging, each of these discoveries has had a tremendous impact on our understanding of the star formation process and the physics of cool atmospheres. Young stars are prime targets for direct imaging searches for planets and brown dwarfs due to the favorable brightness contrast expected at such ages and also because it is often possible to derive relatively good age estimates for these primaries. Here we present the direct imaging discovery of HD 284149 b, a 18-50 M-Jup companion at a projected separation of 400 AU from a young (25(10)(+25) Myr) F8 star, with which it shares common proper motion.

AB - Even though only a handful of sub-stellar companions have been found via direct imaging, each of these discoveries has had a tremendous impact on our understanding of the star formation process and the physics of cool atmospheres. Young stars are prime targets for direct imaging searches for planets and brown dwarfs due to the favorable brightness contrast expected at such ages and also because it is often possible to derive relatively good age estimates for these primaries. Here we present the direct imaging discovery of HD 284149 b, a 18-50 M-Jup companion at a projected separation of 400 AU from a young (25(10)(+25) Myr) F8 star, with which it shares common proper motion.

KW - brown dwarfs

KW - instrumentation: adaptive optics

KW - methods: observational

KW - planetary systems

KW - stars: individual (HD 284149)

KW - stars: pre-main sequence

KW - SOLAR-TYPE STARS

KW - TAURUS-AURIGA

KW - UPPER SCORPIUS

KW - BROWN DWARFS

KW - EVOLUTIONARY MODELS

KW - HR 8799

KW - MASS

KW - PLANET

KW - DISCOVERY

KW - CHAMELEON

U2 - 10.1088/2041-8205/791/2/L40

DO - 10.1088/2041-8205/791/2/L40

M3 - Article

SN - 2041-8205

VL - 791

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 2

M1 - 40

ER -

A NEW SUB-STELLAR COMPANION AROUND THE YOUNG STAR HD 284149

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

Access to Document

Fingerprint

Cite this