Improving Planet Detection with Disk Modeling: Keck/NIRC2 Imaging of the HD 34282 Single-armed Protoplanetary Disk

Abstract

Formed in protoplanetary disks around young stars, giant planets can leave observational features such as spirals and gaps in their natal disks through planet-disk interactions. Although such features can indicate the existence of giant planets, protoplanetary disk signals can overwhelm the innate luminosity of planets. Therefore, in order to image planets that are embedded in disks, it is necessary to remove the contamination from the disks to reveal the planets possibly hiding within their natal environments. We observe and directly model the detected disk in the Keck/NIRC2 vortex coronagraph $L^{\prime }$-band observations of the single-armed protoplanetary disk around HD 34282. Despite a non-detection of companions for HD 34282, this direct disk modeling improves planet detection sensitivity by up to a factor of 2 in flux ratio and $\sim 10M_{\mathrm{Jupiter}}$ in mass. This suggests that performing disk modeling can improve directly imaged planet detection limits in systems with visible scattered light disks, and can help to better constrain the occurrence rates of self-luminous planets in these systems.

arXiv comment8 pages, 3 figures, 1 table, ApJ Letters accepted. Data files available in the ancillary folder

References in corpus (47)

• emcee: The MCMC Hammer
• A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
• Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 20945
• Angular Differential Imaging: a Powerful High-Contrast Imaging Technique
• Detection and Characterization of Exoplanets and Disks using Projections on Karhunen-Loeve Eigenimages
• Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70
• The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics From 10-100 AU
• Two accreting protoplanets around the young star PDS 70
• The Disk Substructures at High Angular Resolution Project (DSHARP): VII. The Planet-Disk Interactions Interpretation
• The CatWISE2020 Catalog
• Observational Signatures of Planets in Protoplanetary Disks I: Gaps Opened by Single and Multiple Young Planets in Disks
• The SPHERE infrared survey for exoplanets (SHINE). III. The demographics of young giant exoplanets below 300 au with SPHERE
• Observational Signatures of Planets in Protoplanetary Disks II: Spiral Arms Observed in Scattered Light Imaging Can be Induced by Planets
• A young protoplanet candidate embedded in the circumstellar disk of HD100546
• VIP: Vortex Image Processing package for high-contrast direct imaging
• Discovery of a Companion Candidate in the HD169142 Transition Disk and the Possibility of Multiple Planet Formation
• Detection and Characterization of Exoplanets using Projections on Karhunen-Loeve Eigenimages: Forward Modeling
• The newborn planet population emerging from ring-like structures in discs
• The polarimetric imaging mode of VLT/SPHERE/IRDIS II: Characterization and correction of instrumental polarization effects
• $\beta$ Pictoris' inner disk in polarized light and new orbital parameters for $\beta$ Pictoris b
• What is the Mass of a Gap-Opening Planet?
• An Enigmatic Pointlike Feature within the HD 169142 Transitional Disk
• The polarimetric imaging mode of VLT/SPHERE/IRDIS I: Description, data reduction and observing strategy
• Recovery of the Candidate Protoplanet HD 100546 b with Gemini/NICI and Detection of Additional (Planet-Induced?) Disk Structure at Small Separations
• Spiral Arms in Gravitationally Unstable Protoplanetary Disks as Imaged in Scattered Light
• Study of the properties and spectral energy distributions of the Herbig AeBe stars HD 34282 and HD 141569
• Dust Evolution Can Produce Scattered Light Gaps in Protoplanetary Disks
• Spiral arms in the proto-planetary disc HD100453 detected with ALMA: evidence for binary-disc interaction and a vertical temperature gradient
• Keck/NIRC2 $L$'-Band Imaging of Jovian-Mass Accreting Protoplanets around PDS 70
• Reference star differential imaging of close-in companions and circumstellar disks with the NIRC2 vortex coronagraph at W.M. Keck Observatory
• Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks
• Testing giant planet formation in the transitional disk of SAO 206462 using deep VLT/SPHERE imaging
• Spatial segregation of dust grains in transition disks. SPHERE observations of 2MASS J16083070-3828268 and RXJ1852.3-3700
• Diverse protoplanetary disk morphology produced by a Jupiter-mass planet
• Characterizing the performance of the NIRC2 vortex coronagraph at W.M. Keck Observatory
• Rings and gaps in protoplanetary disks: planets or snowlines?
• Predicting the kinematic evidence of gravitational instability
• An Exo-Kuiper Belt and An Extended Halo around HD 191089 in Scattered Light
• A 80 au cavity in the disk around HD 34282
• MAYONNAISE: a morphological components analysis pipeline for circumstellar disks and exoplanets imaging in the near infrared
• Planetary-like spirals caused by moving shadows in transition discs
• Using Data Imputation for Signal Separation in High Contrast Imaging
• HST Scattered Light Imaging and Modeling of the Edge-on Protoplanetary Disk ESO-H$\alpha$ 569
• A single-armed spiral in the protoplanetary disk around HD34282 ?
• REXPACO: an algorithm for high contrast reconstruction of the circumstellar environment by angular differential imaging
• A Layered Debris Disk around M Star TWA 7 in Scattered Light
• Imaging an 80 AU Radius Dust Ring Around the F5V Star HD 157587

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• Protoplanetary disks in $K_s$-band total intensity and polarized light
• Mapping Protoplanetary Disk Vertical Structure with CO Isotopologue Line Emission
• ISPY-NACO Imaging Survey for Planets around Young stars. The demographics of forming planets embedded in protoplanetary disks
• exoALMA. XVII. Characterizing the Gas Dynamics around Dust Asymmetries
• The Appearance of Vortices in Protoplanetary Disks in Near-Infrared Scattered Light
• Multi-band reflectance and shadowing of RX J1604.3-2130 protoplanetary disk in scattered light