SCExAO/CHARIS Near-Infrared Direct Imaging, Spectroscopy, and Forward-Modeling of κ and b: A Likely Young, Low-Gravity Superjovian Companion

@article{Currie2018SCExAOCHARISND,
  title={SCExAO/CHARIS Near-Infrared Direct Imaging, Spectroscopy, and Forward-Modeling of $\kappa$ and b: A Likely Young, Low-Gravity Superjovian Companion},
  author={Thayne Currie and Timothy D. Brandt and Taichi Uyama and Eric L. Nielsen and Sarah C. Blunt and Olivier Guyon and Motohide Tamura and Christian Marois and Kyle Mede and Masayuki Kuzuhara and Tyler D. Groff and Nemanja Jovanovic and N. Jeremy Kasdin and Julien Lozi and Klaus W. Hodapp and Jeffrey K. Chilcote and Joseph C. Carson and Frantz Martinache and Sean Goebel and Carol A. Grady and Michael W. McElwain and Eiji Akiyama and Ruben Asensio-Torres and M. Hayashi and Markus Janson and Gillian R. Knapp and Jungmi Kwon and Jun Nishikawa and Daehyeon Oh and Joshua E. Schlieder and Eugene Serabyn and Michael L. Sitko and Nour Skaf},
  journal={The Astronomical Journal},
  year={2018},
  volume={156},
  pages={291}
}
We present SCExAO/CHARIS high-contrast imaging/JHK integral field spectroscopy of κ And b, a directly imaged low-mass companion orbiting a nearby B9V star. We detect κ And b at a high signal-to-noise ratio and extract high-precision spectrophotometry using a new forward-modeling algorithm for (A-)LOCI complementary to KLIP-FM developed by Pueyo et al. κ And b's spectrum best resembles that of a low-gravity L0–L1 dwarf (L0–L1γ). Its spectrum and luminosity are very well matched by 2MASS J0141… Expand
SCExAO/CHARIS Direct Imaging Discovery of a 20 au Separation, Low-mass Ratio Brown Dwarf Companion to an Accelerating Sun-like Star *
We present the direct imaging discovery of a substellar companion to the nearby Sun-like star, HD 33632 Aa, at a projected separation of $\sim$ 20 au, obtained with SCExAO/CHARIS integral fieldExpand
SCExAO/CHARIS Near-infrared Integral Field Spectroscopy of the HD 15115 Debris Disk
We present new, near-infrared (1.1−2.4 μm) high-contrast imaging of the debris disk around HD 15115 with the Subaru Coronagraphic Extreme Adaptive Optics system (SCExAO) coupled with theExpand
A new type of exoplanet direct imaging search: a SCExAO/CHARIS survey of accelerating stars
We present first results from a new exoplanet direct imaging survey being carried out with the Subaru Coronagraphic Extreme Adaptive Optics project coupled with the CHARIS integral fieldExpand
Isochronal age-mass discrepancy of young stars: SCExAO/CHARIS integral field spectroscopy of the HIP 79124 triple system
We present SCExAO/CHARIS 1.1–2.4 μm integral field direct spectroscopy of the young HIP 79124 triple system. HIP 79124 is a member of the Scorpius-Centaurus association, consisting of an A0V primaryExpand
High-contrast integral field spectropolarimetry of planet-forming disks with SCExAO/CHARIS
We describe a new high-contrast imaging capability well suited for studying planet-forming disks: near-infrared (NIR) high-contrast spectropolarimetric imaging with the Subaru Coronagraphic ExtremeExpand
Atmospheric Characterization and Further Orbital Modeling of κ Andromeda b
We present κ Andromeda b's photometry and astrometry taken with Subaru/SCExAO+HiCIAO and Keck/NIRC2, combined with recently published SCExAO/CHARIS low-resolution spectroscopy and published thermalExpand
VLT/SPHERE Multiwavelength High-contrast Imaging of the HD 115600 Debris Disk: New Constraints on the Dust Geometry and the Presence of Young Giant Planets
Young and dynamically active planetary systems can form disks of debris that are easier to image than the planets themselves. The morphology and evolution of these disks can help to infer theExpand
SCExAO/CHARIS High-contrast Imaging of Spirals and Darkening Features in the HD 34700 A Protoplanetary Disk
We present Subaru/SCExAO+CHARIS broadband ($JHK$-band) integral field spectroscopy of HD 34700 A. CHARIS data recover HD 34700 A's disk ring and confirm multiple spirals discovered in Monnier et al.Expand
Performance and early science with the Subaru Coronagraphic Extreme Adaptive Optics project
We describe the current performance of the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument on the Subaru telescope on Maunakea, Hawaii and present early science results for SCExAOExpand
Prospects for Directly Imaging Young Giant Planets at Optical Wavelengths
In this work, we investigate the properties of young giant planet spectra in the optical and suggest that future space-based direct imaging missions should be considering young planets as a valuableExpand
...
1
2
3
4
...

References

SHOWING 1-10 OF 119 REFERENCES
DIRECT IMAGING AND SPECTROSCOPY OF A CANDIDATE COMPANION BELOW/NEAR THE DEUTERIUM-BURNING LIMIT IN THE YOUNG BINARY STAR SYSTEM, ROXs 42B
We present near-infrared high-contrast imaging photometry and integral field spectroscopy of ROXs 42B, a binary M0 member of the 1-3 Myr old ρ Ophiuchus star-forming region, from data collected overExpand
Mid-infrared characterization of the planetary-mass companion ROXs 42B b
We present new Keck/NIRC2 3–5 μ m infrared photometry of the planetary-mass companion to ROXS 42B in L ′, and for the first time in Brackett-α (Brff) and in M s -band. We combine our data withExpand
DIRECT IMAGING DISCOVERY OF A “SUPER-JUPITER” AROUND THE LATE B-TYPE STAR κ And*
We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 ± 2 AU (1.''058 ± 0.''007) from the B9-type star κ And. The planetExpand
A COMBINED VERY LARGE TELESCOPE AND GEMINI STUDY OF THE ATMOSPHERE OF THE DIRECTLY IMAGED PLANET, β PICTORIS b
We analyze new/archival VLT/NaCo and Gemini/NICI high-contrast imaging of the young, self-luminous planet β Pictoris b in seven near-to-mid IR photometric filters, using advanced image processingExpand
Near-Infrared Spectroscopy of 2M0441+2301 AabBab: A Quadruple System Spanning the Stellar to Planetary Mass Regimes
We present Keck/NIRC2 and OSIRIS near-infrared imaging and spectroscopy of 2M0441+2301 AabBab, a young (1–3 Myr) hierarchical quadruple system comprising a low-mass star, two brown dwarfs, and aExpand
Characterization of the gaseous companion κ Andromedae b - New Keck and LBTI high-contrast observations
Context. We previously reported the direct detection of a low mass companion at a projected separation of 55 2 AU around the B9 type star Andromedae. The properties of the system (mass ratio,Expand
A Near-infrared Spectroscopic Study of Young Field Ultracool Dwarfs
We present a near-infrared (0.9-2.4 μm) spectroscopic study of 73 field ultracool dwarfs having spectroscopic and/or kinematic evidence of youth (10-300 Myr). Our sample is composed of 48Expand
Discovery of a warm, dusty giant planet around HIP 65426
Aims. The SHINE program is a high-contrast near-infrared survey of 600 young, nearby stars aimed at searching for and characterizing new planetary systems using VLT/SPHERE’s unprecedentedExpand
A library of near-infrared integral field spectra of young M–L dwarfs
We present a library of near-infrared (1.1-2.45 microns) medium-resolution (R~1500-2000) integral field spectra of 15 young M6-L0 dwarfs, composed of companions with known ages and of isolatedExpand
The κ Andromedae System: New Constraints on the Companion Mass, System Age, and Further Multiplicity
κ Andromedae is a B9IVn star at 52 pc for which a faint substellar companion separated by 55 ± 2 AU was recently announced. In this work, we present the first spectrum of the companion, "κ And B,"Expand
...
1
2
3
4
5
...