Results 101 to 110 of about 2,982 (223)
The Formation and Structure of Circumstellar Disks [PDF]
International Astronomical Union Colloquium, 2000 AbstractSeveral theories have been proposed to explain the origin of Be star disks. Among them are Wind-Compressed Disks, accretion disks, decretion disks, and “explosive” ejections. In reviewing these mechanisms, I first concentrate on the current status of the Wind-Compressed Disk model. In particular, I discuss how non-radial forces may prevent disk
openaire +1 more source
Deep Search for a Scattered Light Dust Halo Around Vega with the Hubble Space Telescope
The Astronomical JournalWe present a provisory scattered-light detection of the Vega debris disk using deep Hubble Space Telescope (HST) coronagraphy (PID 16666). At only 7.7 pc, Vega is immensely important in debris disk studies both for its prominence and also because it ...
Schuyler G. Wolff +8 more
doaj +1 more source
On the alignment between the circumstellar disks and orbital planes of Herbig Ae/Be binary systems [PDF]
, 2011 Context. The majority of the intermediate mass, pre-main-sequence Herbig Ae/Be stars reside in binary systems. As these systems are young, their properties may contain an imprint of the star formation process at intermediate masses
Drew, J.E. +7 more
core +1 more source
87th Annual Meeting of the Meteoritical Society 2025: Abstracts
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source
Observing CO in Circumstellar Disks
, 2010 This dissertation includes high-resolution, near-infrared spectroscopy to study CO in circumstellar disks around Herbig Ae/Be stars. The velocity-resolved spectra was used to measure the distribution of gas in the circumstellar disk and thus determine ...
Troutman, Matthew
core
Light Echoes of Time-resolved Flares and Application to Kepler Data
The Open Journal of AstrophysicsLight echoes of stellar flares provide an intriguing option for exploring protoplanetary disks in young stellar systems. Previous work on light echoes of circumstellar disks made use of delta-function flares for modeling.
Austin King, Benjamin C. Bromley
doaj +1 more source
Warping, dust settling and dynamics of protoplanetary disks
, 2009 The research presented in this thesis investigates several aspects of the evolutionary processes of T Tauri stars and their accompanying circumstellar disks.
O'Sullivan, Mark George
core
A search for circumstellar dust disks with ADONIS
, 2004 We present results of a coronographic imaging search for circumstellar dust disks with the Adaptive Optics Near Infrared System (ADONIS) at the ESO 3.6 m telescope in La Silla (Chile).
Boehnhardt, H. +15 more
core +1 more source
A Census of the β Pic Moving Group and Other Nearby Associations with Gaia
The Astronomical JournalI have used the third data release of the Gaia mission to improve the reliability and completeness of membership samples in the β Pic moving group (BPMG) and other nearby associations with ages of 20–50 Myr (Sco Body, Carina, Columba, χ ^1 For, Tuc-Hor ...
K. L. Luhman
doaj +1 more source
A JWST MIRI MRS View of the η Tel Debris Disk and Its Brown Dwarf Companion
The Astrophysical JournalWe report JWST Mid-Infrared Instrument (MIRI) Medium Resolution Spectrograph (MRS) observations of the β Pic moving-group member, η Tel A, along with its brown dwarf binary companion, η Tel B.
Yiwei Chai +14 more
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