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Structural analysis of massive protoclusters formed from cloud collision
(Universidad de los AndesFísicaFacultad de CienciasDepartamento de Física, 2022-12-15)
The main processes that trigger the collapse and fragmentation of giant molecular clouds (GMCs) in star-forming regions are poorly understood. One of the proposed mechanisms for the formation of massive stellar clusters ...
G305.136+0.068: A massive and dense cold core in an early stage of evolution
(The American Astronomical Society, 2015-01-20)
We report molecular line observations, made with ASTE and SEST, and dust continuum observations at 0.87 mm,
made with APEX, toward the cold dust core G305.136+0.068. The molecular observations show that the core is
isolated ...
Carma Large Area Star Formation Survey: observational analysis of filaments in the serpens south molecular cloud
(Iop Publishing, 2014-08)
We present the N2H+ (J = 1 → 0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey. The observations cover 250 arcmin2 and fully sample structures from 3000 AU
to 3 pc ...
A portrait of cold gas in galaxies at 60 pc resolution and a simple method to test hypotheses that link small-scale ism structure to galaxy-scale processes
(IOP Publishing, 2016)
The cloud-scale density, velocity dispersion, and gravitational boundedness of the interstellar medium (ISM) vary within and among galaxies. In turbulent models, these properties play key roles in the ability of gas to ...
Galactic outflows and the pollution of the galactic environment by supernovae
(ELSEVIER SCI LTD, 2010)
We here explore the effects of the SN explosions into the halo of star-forming galaxies like the Milky Way. Successive randomly distributed and clustered SNe explosions cause the formation of hot superbubbles that drive ...
Possible Evidence for Cosmic-Ray Acceleration in the Type Ia SNR RCW 86: Spatial Correlation between TeV Gamma-Rays and Interstellar Atomic Protons
(IOP Publishing, 2019-04)
We present a detailed morphological study of TeV gamma-rays, synchrotron radiation, and interstellar gas in the young Type Ia supernova remnant (SNR) RCW 86. We find that the interstellar atomic gas shows good spatial ...
Panorámica del proyecto CLASSy: the CARMA Large Area Star Formation Survey
(Asociación Argentina de Astronomía, 2015)
The CARMA Large Area Star-formation Survey (CLASSy) is a CARMA Key Project which is mapping 5 fields covering about 150 square-arcminutes each in the Perseus (3 fields) and Serpens (2 fields) Molecular Clouds. CLASSy ...
Efeitos da opacidade no estudo da turbulência interestelar
(BrasilUFRNPROGRAMA DE PÓS-GRADUAÇÃO EM FÍSICA, 2015-09-11)
In this work we study the goodness of estimating sonic Mach number (MS) from linewidths
of 13CO in molecular clouds of the interstellar medium, taking effects of opacity into
account. To do so, we analyze magnetohydrodynamic ...
Cloud-scale ISM Structure and Star Formation in M51
(Institute of Physics, 2017)
We compare the structure of molecular gas at 40pc resolution to the ability of gas to form stars across the disk of
the spiral galaxy M51. We break the PAWS survey into 370pc and 1.1kpc resolution elements, and within ...
A spectral survey of CH3CCH in the hot molecular core G331.512-0.103
(IOP, 2022)
A spectral survey of methyl acetylene (CH3CCH) was conducted toward the hot molecular core/outflow G331.512-0.103. Our APEX observations allowed the detection of 41 uncontaminated rotational lines of CH3CCH in the frequency ...