Results 21 to 30 of about 2,019 (232)
The harsh environment where exoplanets live
Astronomische Nachrichten, Volume 343, Issue 4, May 2022., 2022 Abstract The X‐ray and Extreme Ultraviolet (XUV) actvity of the Sun has determined important effects on the planets around it. In particular, high doses of X‐rays, flares, and coronal mass ejections (CMEs) combined with masses and sizes of the planets and the shielding action of the planetary magnetic fields have determined the diverse habitability of ...
Ignazio Pillitteri
wiley +1 more source
Azimuthal Patterns in Planetesimal Circumstellar Disks
Astronomy Letters, 2023 24 pages, 8 figures.
Demidova, Tatiana V. +1 more
openaire +2 more sources
DIAGNOSING CIRCUMSTELLAR DEBRIS DISKS [PDF]
The Astrophysical Journal, 2010 Accepted for publication in the Astrophysical ...
openaire +2 more sources
Planet–planet scattering in circumstellar gas disks [PDF]
Astronomy and Astrophysics, 2010 Astronomy and Astrophysics Letters, in ...
MARZARI, FRANCESCO +2 more
openaire +2 more sources
Gravitational Instabilities in Circumstellar Disks [PDF]
Annual Review of Astronomy and Astrophysics, 2016 Star and planet formation are the complex outcomes of gravitational collapse and angular momentum transport mediated by protostellar and protoplanetary disks. In this review, we focus on the role of gravitational instability in this process. We begin with a brief overview of the observational evidence for massive disks that might be subject to ...
K. Kratter, G. Lodato
openaire +2 more sources
Microlensing of Circumstellar Disks
The Astrophysical Journal, 2005 9 pages, 7 figures.
Zheng, Zheng, Ménard, Brice
openaire +2 more sources
Chemical Models of Circumstellar Disks [PDF]
Symposium - International Astronomical Union, 2000 We investigate the evolution of molecular abundances in circumstellar disks around young stars via numerical simulations. The results are compared with the composition of comets and radio observations of protoplanetary disks. First, we consider the molecular evolution in the midplane of the disk.
Yuri Aikawa, Eric Herbst
openaire +1 more source
Heat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey +3 more
wiley +1 more source
The Astrophysical Journal LettersWe present observations of the gamma-ray binary PSR B1259-63/LS 2883 with the Atacama Large Millimeter/submillimeter Array (ALMA) at Band 3 (97 GHz), Band 6 (233 GHz), and Band 7 (343 GHz).
Yutaka Fujita +5 more
doaj +1 more source
Open Astronomy, 2013 The star V2282 Sgr is positionally consistent with a strong Chandra X-ray and a Spitzer/IRAC mid-infrared source. We derived its long-term I-band light curve from the photographic archives of the Asiago and Catania Observatories, covering the years from ...
Nesci R. +4 more
doaj +1 more source