Results 131 to 140 of about 362,838 (268)

Nova V4444 Sagittarii 1999: Spectropolarimetric Evidence for a Preexisting Circumstellar Dust Cloud [PDF]

open access: bronze, 2000
Koji S. Kawabata   +6 more
openalex   +1 more source

Tracing large-scale structures in circumstellar disks with ALMA

open access: yes, 2012
Planets are supposed to form in circumstellar disks. The gravitational potential of a planet perturbs the disk and leads to characteristic structures, i.e. spiral waves and gaps, in the disk's density profile.
Klahr, Hubert H.   +3 more
core   +1 more source

Probing Dust and Gas Properties Using Ringed Disks

open access: yesThe Astrophysical Journal Letters
How rapidly a planet grows in mass and how far it may park from the host star depend sensitively on two nondimensional parameters: Stokes number St and turbulent α .
Eve J. Lee
doaj   +1 more source

HD101584: Circumstellar characteristics and evolutionary status

open access: yes, 2019
We have performed a study of the characteristics of the circumstellar environment of the binary object HD101584, that provides information on a likely evolutionary scenario.
Bergman, P.   +10 more
core   +1 more source

Deep Search for a Scattered Light Dust Halo Around Vega with the Hubble Space Telescope

open access: yesThe Astronomical Journal
We 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

Dust dynamics in planet-forming discs in binary systems. [PDF]

open access: yesEur Phys J Plus, 2023
Zagaria F   +3 more
europepmc   +1 more source

The last gasps of VY CMa: Aperture synthesis and adaptive optics imagery

open access: yes, 1998
We present new observations of the red supergiant VY CMa at 1.25 micron, 1.65 micron, 2.26 micron, 3.08 micron and 4.8 micron. Two complementary observational techniques were utilized: non-redundant aperture masking on the 10-m Keck-I telescope yielding ...
B. Lopez   +29 more
core   +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

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