Results 91 to 100 of about 2,119 (235)

A DEEPSPITZERSURVEY OF CIRCUMSTELLAR DISKS IN THE YOUNG DOUBLE CLUSTER, h AND χ PERSEI [PDF]

open access: bronze, 2014
Ryan Cloutier   +5 more
openalex   +1 more source

Polarization of Circumstellar Debris Disk Light Echoes

open access: yesThe Astronomical Journal
Abstract Light echoes of debris disks around active stars can reveal disk structure and composition even when disks are not spatially resolved. Unfortunately, distinguishing reflected light from quiescent starlight and unexpected post-peak flare structure is challenging, especially for edge-on geometries where the time delay between ...
Austin J. King   +3 more
openaire   +3 more sources

A Census of the β Pic Moving Group and Other Nearby Associations with Gaia

open access: yesThe Astronomical Journal
I 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

86th Annual Meeting of the Meteoritical Society (2024)

open access: yes
Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

Aligning Planet-hosting Binaries via Dissipative Precession in Circumstellar Disks

open access: yesThe Astrophysical Journal
Recent observations have demonstrated that some subsets of even moderately wide-separation planet-hosting binaries are preferentially configured such that planetary and binary orbits appear to lie within the same plane.
Konstantin Gerbig   +4 more
doaj   +1 more source

Stellar Rotation in the First 6 Myr: Rotational Velocities and Radii Estimates of T Tauri Stars in IC 5070 and IC 348

open access: yesThe Astrophysical Journal
We have acquired high-resolution optical spectroscopy for a sample of T Tauri stars (TTSs) in open clusters using Hydra on the WIYN 3.5 m telescope, and present projected rotational velocities ( v sin i values) for 54 stars in IC 5070 and 99 stars in IC ...
Laurin M. Gray   +2 more
doaj   +1 more source

Mid-infrared sizes of circumstellar disks around Herbig Ae/Be stars measured with MIDI on the VLTI [PDF]

open access: bronze, 2004
S. Wolf   +37 more
openalex   +1 more source

Grain Size in the Class I Protostellar System TMC-1A Constrained with ALMA and Very Large Array Observations

open access: yesThe Astrophysical Journal
The disk mass and substructure in young stellar objects suggest that planet formation may start at the protostellar stage, through the growth of dust grains.
Yusuke Aso   +3 more
doaj   +1 more source

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