Results 11 to 20 of about 23,880 (220)
Emission activity of the Be star 60 Cygni [PDF]
Serbian Astronomical Journal, 2017 In this paper we present results of spectroscopic analysis of the H® line profile of the Be star 60 Cygni. We present time evolution of the equivalent width of the H® line profiles during years 1992 - 2016 and V=R variation during years 1995 ...
Šejnová K., Votruba V.
doaj +1 more source
Microlensing of Circumstellar Disks [PDF]
, 2005 We investigate the microlensing effects on a source star surrounded by a circumstellar disk, as a function of wavelength. The microlensing light curve of the system encodes the geometry and surface brightness profile of the disk.
Brice Menard +8 more
core +1 more source
Visible to Mid‐Infrared Optical Constants of Orthopyroxenes
Earth and Space Science, Volume 9, Issue 4, April 2022., 2022 Abstract Radiative transfer models of remotely acquired infrared spectra result in quantitative identification of minerals on planetary surfaces. Optical constants, or the real (n) and imaginary (k) indices of refraction are necessary inputs in such models.
Melinda J. Rucks +5 more
wiley +1 more source
Hot Jupiters: Origins, Structure, Atmospheres
Journal of Geophysical Research: Planets, Volume 126, Issue 3, March 2021., 2021 Abstract We provide a brief review of many aspects of the planetary physics of hot Jupiters. Our aim is to cover most of the major areas of current study while providing the reader with additional references for more detailed follow‐up. We first discuss giant planet formation and subsequent orbital evolution via disk‐driven torques or dynamical ...
Jonathan J. Fortney +2 more
wiley +1 more source
ISO LWS Spectra of T Tauri and Herbig AeBe stars [PDF]
, 2002 We present an analysis of ISO-LWS spectra of eight T Tauri and Herbig AeBe young stellar objects. Some of the objects are in the embedded phase of star-formation, whereas others have cleared their environs but are still surrounded by a circumstellar ...
Blake, G. A. +4 more
core +2 more sources
An Ionized Outflow in Orion-KL Source I?
The Astrophysical Journal, 2023 We present images at 6 and 14 GHz of Source I (SrcI) in the Kleinmann–Low Nebula in Orion. At higher frequencies, from 43 to 340 GHz, images of this source are dominated by thermal emission from dust in a 100 au diameter circumstellar disk, but at 6 and ...
Melvyn Wright +7 more
doaj +1 more source
The binary Be star $\delta$ Scorpii at high spectral and spatial resolution : II The circumstellar disk evolution after the periastron [PDF]
, 2013 Classical Be stars are hot non-supergiant stars surrounded by a gaseous circumstellar disk that is responsible for the observed infrared (IR) excess and emission lines. The influence of binarity on these phenomena remains controversial.
Malbet, Fabien +5 more
core +5 more sources
Discovery of an extended debris disk around the F2V star HD 15745 [PDF]
, 2007 Using the Advanced Camera for Surveys aboard the Hubble Space Telescope, we have discovered dust-scattered light from the debris disk surrounding the F2V star HD 15745. The circumstellar disk is detected between 2.0" and 7.5" radius, corresponding to 128
Baraffe I. +6 more
core +1 more source
The consequences of a nearby supernova on the early Solar System [PDF]
, 2018 If the Sun was born in a relatively compact open cluster, it is quite likely that a massive (10MSun) star was nearby when it exploded in a supernova. The repercussions of a supernova can be rather profound, and the current Solar System may still bear the
Lugaro, Maria +4 more
core +8 more sources
Improving the thin-disk models of circumstellar disk evolution. The 2+1-dimensional model
, 2017 Circumstellar disks of gas and dust are naturally formed from contracting pre-stellar molecular cores during the star formation process. To study various dynamical and chemical processes that take place in circumstellar disks prior to their dissipation ...
Pavlyuchenkov, Yaroslav N. +1 more
core +2 more sources