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The grazing angle icy protoplanetary disk PDS 453
Laurine Martinien, François Ménard, Gaspard Duchêne +12
PDS 453 is a rare highly inclined disk where the stellar photosphere is seen at grazing incidence on the disk surface. Our goal is take advantage of this geometry to constrain the…
The surprising evolution of the shadow on the TW Hya disk
J. Debes, R. Nealon, R. Alexander +8
We report new total intensity visible light high contrast imaging of the TW Hya disk taken with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST).…
Proplyds in the Flame Nebula NGC 2024
Thomas J. Haworth, Jinyoung S. Kim, Andrew J. Winter +5
A recent survey of the inner pc of the NGC 2024 star forming region revealed two distinct millimetre continuum disc populations that appear to be spatially segregat…
Multiband GPI Imaging of the HR 4796A Debris Disk
Christine H. Chen, Johan Mazoyer, Charles A. Poteet +36
We have obtained Gemini Planet Imager (GPI) J-, H-, K1-, and K2-Spec observations of the iconic debris ring around the young, main-sequence star HR 4796A. We applied several point-…
High Fidelity Imaging of the Inner AU Mic Debris Disk: Evidence of Differential Wind Sculpting?
John P. Wisniewski, Adam F. Kowalski, James R. A. Davenport +17
We present new high fidelity optical coronagraphic imagery of the inner 50 au of AU Mic's edge-on debris disk using the BAR5 occulter of the Hubble Space Telescope Imaging Sp…
Space-Based Coronagraphic Imaging Polarimetry of the TW Hydrae Disk: Shedding New Light on Self-Shadowing Effects
Charles A. Poteet, Christine H. Chen, Dean C. Hines +6
We present Hubble Space Telescope Near-Infrared Camera and Multi-Object Spectrometer coronagraphic imaging polarimetry of the TW Hydrae protoplanetary disk. These observations simu…
The HR 4796A Debris System: Discovery of Extensive Exo-Ring Dust Material
Glenn Schneider, John H. Debes, Carol A. Grady +6
The optically and IR bright, and starlight-scattering, HR 4796A ring-like debris disk is one of the most (and best) studied exoplanetary debris systems. The presence of a yet-undet…
Chasing Shadows: Rotation of the Azimuthal Asymmetry in the TW Hya Disk
John H. Debes, Charles A. Poteet, Hannah Jang-Condell +8
We have obtained new images of the protoplanetary disk orbiting TW Hya in visible, total intensity light with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Te…
Deep HST/STIS Visible-Light Imaging of Debris Systems around Solar Analog Hosts
Glenn Schneider, Carol A. Grady, Christopher C. Stark +11
We present new Hubble Space Telescope observations of three a priori known starlight-scattering circumstellar debris systems (CDSs) viewed at intermediate inclinations around nearb…
A Search for short-period Rocky Planets around WDs with the Cosmic Origins Spectrograph (COS)
P. H. Sandhaus, J. H. Debes, J. Ely +2
The search for transiting habitable exoplanets has broadened to include several types of stars that are smaller than the Sun in an attempt to increase the observed transit depth an…
First images of debris disks around TWA 7, TWA 25, HD 35650, and HD 377
Élodie Choquet, Marshall D. Perrin, Christine H. Chen +15
We present the first images of four debris disks observed in scattered light around the young (4--250 Myr old) M dwarfs TWA 7 and TWA 25, the K6 star HD 35650, and the G2 star HD 3…
Scattered Light from Dust in the Cavity of the V4046 Sgr Transition Disk
Valerie A. Rapson, Joel H. Kastner, Sean M. Andrews +4
We report the presence of scattered light from dust grains located in the giant planet formation region of the circumbinary disk orbiting the ~20-Myr-old close (~0.045 AU separatio…
Polarized Light Imaging of the HD 142527 Transition Disk with the Gemini Planet Imager: Dust around the Close-in Companion
Timothy J. Rodigas, Katherine B. Follette, Alycia Weinberger +2
When giant planets form, they grow by accreting gas and dust. HD 142527 is a young star that offers a scaled-up view of this process. It has a broad, asymmetric ring of gas and dus…
Five Debris Disks Newly Revealed in Scattered Light from the HST NICMOS Archive
Rémi Soummer, Marshall D. Perrin, Laurent Pueyo +12
We have spatially resolved five debris disks (HD 30447, HD 35841, HD 141943, HD 191089, and HD 202917) for the first time in near-infrared scattered light by reanalyzing archival H…
HST and Spitzer Observations of the HD 207129 Debris Ring
John Krist, Karl Stapelfeldt, Geoffrey Bryden +10
A debris ring around the star HD 207129 (G0V; d = 16.0 pc) has been imaged in scattered visible light with the ACS coronagraph on the Hubble Space Telescope and in thermal emission…
The Taurus Spitzer Survey: New Candidate Taurus Members Selected Using Sensitive Mid-Infrared Photometry
L. M. Rebull, D. L. Padgett, C. -E. McCabe +31
We report on the properties of pre-main-sequence objects in the Taurus molecular clouds as observed in 7 mid- and far-infrared bands with the Spitzer Space Telescope. There are 215…
Far-infrared Observations of the Very Low-Luminosity Embedded Source L1521F-IRS in the Taurus Star-Forming Region
Susan Terebey, Michel Fich, Alberto Noriega-Crespo +14
We investigate the environment of the very low-luminosity object L1521F IRS using data from the Taurus Spitzer Legacy Survey. The MIPS 160 micron image shows both extended emission…
O/IR Polarimetry for the 2010 Decade (SSE): Science at the Edge, Sharp Tools for All
Jennifer L. Hoffman, Dean C. Hines, Andy Adamson +16
Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the fields of stars and stellar evolution. Community-based White Paper…
O/IR Polarimetry for the 2010 Decade (PSF): Science at the Edge, Sharp Tools for All
Dan Clemens, B. -G. Andersson, Andy Adamson +16
Science opportunities and recommendations concerning optical/infrared polarimetry for the upcoming decade in the fields of planetary systems and star formation. Community-based Whi…