Results 31 to 40 of about 3,519 (205)

[Retracted] Internet of Things System of Spatial Structure Sports Events Health Monitoring Based on Cloud Computing

open access: yesSecurity and Communication Networks, Volume 2022, Issue 1, 2022., 2022
At present, the health monitoring system of world sports events uses the system's on‐site information or periodic test information to evaluate the health of the system. In order to make the data more accurate, the application of cloud computing is necessary.
Rui Feng, Ning Chang, Muhammad Arif
wiley   +1 more source

ON THE DISTRIBUTION OF PROTOSTAR MASSES [PDF]

open access: yesThe Astrophysical Journal, 2009
The distribution of protostar masses is studied for core-environment systems whose duration of infall follows a waiting-time distribution. Each core-environment system has a continuous density profile with no barrier to mass flow. The core is an isothermal sphere and the environment is a filament, a layer, or a uniform medium.
openaire   +2 more sources

First unbiased spectral survey of a young and single massive protostar: CygX-N63

open access: yes, 2013
International audienceWe present an unbiased spectral survey of a unique massive protostar in the Cygnus-X region: CygX-N63, performed with the 30m IRAM telescope. We identified 48 molecules over 106 GHz of bandwidth.
Bontemps, Sylvain, Fechtenbaum, Sarah
core   +3 more sources

HDO emission in the solar-type protostar IRAS 16293-2422 [Poster] [PDF]

open access: yes, 2005
We present millimeter observations of five HDO rotational lines towards the low-mass protostar IRAS 16293-2422, with upper energies ranging from 22 to 167K.
Castets, Alain   +4 more
core   +5 more sources

Opacity Limit for Supermassive Protostars [PDF]

open access: yesThe Astrophysical Journal, 2018
Abstract We present a model for the evolution of supermassive protostars from their formation at until their growth to .
Fernando Becerra   +4 more
openaire   +3 more sources

Disk Wind Feedback from High-mass Protostars. II. The Evolutionary Sequence

open access: yesThe Astrophysical Journal, 2023
Star formation is ubiquitously associated with the ejection of accretion-powered outflows that carve bipolar cavities through the infalling envelope. This feedback is expected to be important for regulating the efficiency of star formation from a natal ...
Jan E. Staff   +4 more
doaj   +1 more source

EVOLUTION OF MASS OUTFLOW IN PROTOSTARS [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We have surveyed 84 Class 0, Class I, and flat-spectrum protostars in mid-infrared [Si ii], [Fe ii], and [S i] line emission, and 11 of these in far-infrared [O i] emission. We use the results to derive their mass outflow rates, .
Dan M. Watson   +11 more
openaire   +2 more sources

Early Planet Formation in Embedded Disks (eDisk). IX. High-resolution ALMA Observations of the Class 0 Protostar R CrA IRS5N and Its Surroundings

open access: yesThe Astrophysical Journal, 2023
We present high-resolution high-sensitivity observations of the Class 0 protostar RCrA IRS5N as part of the Atacama Large Milimeter/submilimeter Array large program Early Planet Formation in Embedded Disks.
Rajeeb Sharma   +21 more
doaj   +1 more source

Observational signatures of outbursting protostars – II. Exploring a wide range of eruptive protostars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
MNRAS accepted, 8 pages, 9 ...
MacFarlane, Benjamin   +7 more
openaire   +2 more sources

First detection of CF+ towards a high-mass protostar [PDF]

open access: yes, 2015
International audienceAims: We report the first detection of the J = 1-0 (102.6 GHz) rotational lines of CF+ (fluoromethylidynium ion) towards CygX-N63, a young and massive protostar of the Cygnus X region.
Bontemps, S.   +21 more
core   +2 more sources

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