Download or read book Determining the Mass of a Class1 0 Protostar L1527 Using Moment Maps written by Andrew Barajas and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protostars have been studied and examined for decades; however, many puzzles remain about them, from their mass to the kinematics of the gas surrounding the protostar. Spectral lines coming from protostars contain information on the velocity dispersion of the dust/molecules, which arise from the Doppler effect. The kinematics of the infalling and rotating gas provides information on how solar systems developed what type of star will result from these early stages, or constrains on the mass through assumed Keplerian motions. Here we utilize the spectral line cubes of the ClassO/I Protostar L1527's chemical model from ALMA C18O (2-1) model simulations, created using the software package RadChemT, to develop predicted Moment maps and PV diagrams. Moment maps and PV diagrams give us the kinematics of L1527 that are used to determine its mass. Using ALMA's Data Mining Toolkit (ADMIT), we made moment maps and PV diagrams from observed data for L1527. ADMIT is a set of coding tools that help analyze image data cubes. Through comparisons of the observation and model moment maps, we hope to better determine the mass of L1527 and further solidify the accuracy of the RadChemT model of L1527.
Download or read book The Molecular Universe IAU S280 written by José Cernicharo and published by Cambridge University Press. This book was released on 2012-01-19 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astrochemistry, the study of molecules and their chemistry in astrophysical objects throughout the Universe, is experiencing a true golden age. Astronomical observations of molecules are crucial in contributing to our understanding of the physical conditions in many different astrophysical environments, from the Solar System and extrasolar planets to stars, interstellar clouds and galaxies. Concurrently, laboratory experiments and theoretical studies can provide basic information about the often exotic chemical processes taking place in the Universe. IAU Symposium 280 contains outstanding reviews on the advances in observational, laboratory, theoretical and modelling studies, carried out by leading scientists worldwide. This volume provides researchers and graduate students with an indispensable account of the current state of astrochemistry, its recent successes and the immense possibilities of this fascinating field for future growth.
Download or read book Two micron Sky Survey written by Gerry Neugebauer and published by . This book was released on 1969 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Galactic Interstellar Medium written by W.B. Burton and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The previous Saas-Fee Advanced Course dedicated to the interstellar medium took place in 1972. The tremendous scientific advances that have occurred in this field since then, in particular owing to the availabihty of receivers working at completely unexplored wavelength bands, fuUy justified a new set of lectures. As a consequence, the members of the Swiss Society for Astrophysics and As tronomy voted that "The Galactic Interstellar Medium" should be the subject of the 1991 course. The 21st Saas Fee Advanced Course took place in Les Diablerets from 18 to 23 March 1991, gathering together about 80 participants from all over the world, but mostly from Europe. According to a rule that has proved to lead to success, but also to chal lenge the lecturers' energy, the format of a Saas-Fee Advanced Course consists traditionally of 28 lectures of 45 minutes which take place in the morning and late afternoon, leaving ample time for discussions, self-study, hiking or skiing. Despite the inordinate work load imposed, this year's lecturers felt that the subject was sufficiently dense to increase the lecture time by 1/3! This proved judicious and left more time for questions and discussions during the lectures.
Download or read book Isotope Dilution Mass Spectrometry written by J. Ignacio Garcia Alonso and published by Royal Society of Chemistry. This book was released on 2013 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first textbook to present a comprehensive and instructive view of the theory and applications of this growing technique.
Download or read book Proceedings of the Second International Conference on Railway Technology written by Guowei Yang and published by . This book was released on 2014 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt:
