X-Shooter spectroscopy of young stellar objects: II. Impact of chromospheric emission on accretion rate estimates [PDF]
, 2013 Context. The lack of knowledge of photospheric parameters and the level of chromospheric activity in young low-mass pre-main sequence stars introduces uncertainties when measuring mass accretion rates in accreting (Class II) Young Stellar Objects.
Alcalá, J. M. +13 more
core +6 more sources
Cyanopolyyne Chemistry around Massive Young Stellar Objects [PDF]
Astrophysical Journal, 2019 Recent radio astronomical observations have revealed that HC5N, the second shortest cyanopolyyne (HC2n+1N), is abundant around some massive young stellar objects (MYSOs), which is not predicted by classical carbon-chain chemistry.
K. Taniguchi +5 more
semanticscholar +1 more source
Radio jets from young stellar objects [PDF]
The Astronomy and Astrophysics Review, 2018 Jets and outflows are ubiquitous in the process of formation of stars since outflow is intimately associated with accretion. Free–free (thermal) radio continuum emission in the centimeter domain is associated with these jets.
G. Anglada +2 more
semanticscholar +1 more source
Gaia DR2 view of the Lupus V–VI clouds: The candidate diskless young stellar objects are mainly background contaminants [PDF]
Astronomy & Astrophysics, 2018 Extensive surveys of star-forming regions with Spitzer have revealed populations of disk-bearing young stellar objects. These have provided crucial constraints, such as the timescale of dispersal of protoplanetary disks, obtained by carefully combining ...
C. Manara +12 more
semanticscholar +1 more source
Dust Disks Around Young Stellar Objects [PDF]
Journal of Astronomy and Space Sciences, 2016 To reproduce the spectral energy distributions (SEDs) of young stellar objects (YSOs), we perform radiative transfer model calculations for the circumstellar dust disks with various shapes and many dust species.
Kyung-Won Suh
doaj +1 more source
X-shooter spectroscopy of young stellar objects in Lupus [PDF]
Astronomy & Astrophysics, 2017 With the purpose of performing a homogeneous determination of elemental abundances for members of the Lupus T association, we analyzed three chemical elements: lithium, iron, and barium.
K. Biazzo +11 more
semanticscholar +1 more source
A modular set of synthetic spectral energy distributions for young stellar objects [PDF]
, 2017 In this paper, I present a new set of synthetic spectral energy distributions (SEDs) for young stellar objects (YSOs) spanning a wide range of evolutionary stages, from the youngest deeply embedded protostars to pre-main-sequence stars with few or no ...
T. Robitaille
semanticscholar +1 more source
A search for ionized jets towards massive young stellar objects [PDF]
, 2016 Radio continuum observations using the Australia telescope compact array at 5.5, 9.0, 17.0 and 22.8 GHz have detected free-free emission associated with 45 of 49 massive young stellar objects and HII regions.
S. Purser +11 more
semanticscholar +1 more source
Systematic Analysis of Spectral Energy Distributions and the Dust Opacity Indices for Class 0 Young Stellar Objects [PDF]
, 2017 We are motivated by the recent measurements of dust opacity indices (β) around young stellar objects (YSOs), which suggest that efficient grain growth may have occurred earlier than the Class I stage.
Jennifer I-Hsiu Li +3 more
semanticscholar +1 more source
ISO Spectroscopy of Young Stellar Objects [PDF]
, 1999 Observations of gas-phase and solid-state species toward young stellar objects (YSOs) with the spectrometers on board the Infrared Space Observatory are reviewed. The excitation and abundances of the atoms and molecules are sensitive to the changing
Black, J.H. +20 more
core +8 more sources