Results 131 to 140 of about 2,982 (223)
Far-infrared & Sub-millimeter Studies of Circumstellar Disks
, 2014 Circumstellar disks are critical structures in the star and planet formation processes, as they provide a conduit to channel material onto the central object and supply a reservoir of dust and gas to form planets. This thesis focuses on the far-infrared,
Bulger, Joanna Mary
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A Systematic Search for Main-sequence Dipper Stars Using the Zwicky Transient Facility
The Astrophysical JournalMain-sequence dipper stars, characterized by irregular and often aperiodic luminosity dimming events, offer a unique opportunity to explore the variability of circumstellar material and its potential links to planet formation, debris disks, and broadly ...
Anastasios Tzanidakis +10 more
doaj +1 more source
ASASSN-24fw: Candidate Gas-rich Circumsecondary Disk Occultation of a Main-sequence Star
The Astronomical JournalDusty disks around planetary and substellar companions in outer reaches of exoplanetary systems can be detected as long-lasting occultations, provided the observer is close to the secondary’s orbital plane. Here we report optical spectroscopy with KOSMOS
Nadia L. Zakamska +26 more
doaj +1 more source
Search for Circumstellar Disks Around Herbig Be Stars
, 2004 We have carried out a high-sensitivity search for circumstellar disks around Herbig Be stars in the continuum at 1.3 mm and 2.7 mm using the IRAM interferometer at the Plateau de Bure (PdBI).
Rodr#236 +6 more
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Detection of circumstellar disks around nearby young brown dwarf candidates
Context. It is important to detect and study circumstellar disks around late-M and brown dwarfs of nearby young associations to understand how these very low-mass objects form and how rocky planets form around them.
N. Phan-Bao +2 more
core +1 more source
On the observability of giant protoplanets in circumstellar disks
, 2005 We investigate the possibility of detecting giant planets that are still embedded in young circumstellar disks. On the basis of models with different stellar, planetary, and disk masses and different radial positions of the planet, we analyze the ...
D'Angelo, Gennaro, Wolf, Sebastian
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The Astrophysical Journal LettersCatastrophic planetesimal disruptions offer a unique opportunity to study and characterize large planetesimal populations in exoplanetary systems that are not currently detectable by modern observatories.
Arin M. Avsar +4 more
doaj +1 more source
Planetary signatures in circumstellar debris disks
, 2005 Keck mid-infrared imaging of circumstellar debris disks around the pre-main sequence stars, β Pictoris, HR. 4796A and 49 Cet are presented. It is demonstrated that high resolution thermal imaging at mid-infrared wavelengths is the preferred method to ...
Wahhaj, Zahed
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Sources of Nitrogen-, Sulfur-, and Phosphorus-Containing Feedstocks for Prebiotic Chemistry in the Planetary Environment. [PDF]
Life (Basel), 2022 Todd ZR.
europepmc +1 more source
The Evolution of Primordial Circumstellar Disks
, 2008 Circumstellar disks are an integral part of the star formation process and the sites where planets are formed. Understanding the physical processes that drive their evolution, as disks evolve from optically thick to optically thin, is crucial for our understanding of planet formation.
openaire +2 more sources