Molecular Cloud Evolution. I. Molecular Cloud and Thin Cold Neutral Medium Sheet Formation

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Structure of Cold Molecular Cloud Cores

A brief summary is presented of our current knowledge of the structure of cold molecular cloud cores that do not contain proto-stars, sometimes known as starless cores. The most centrally condensed starless cores are known as pre-stellar cores. These cores probably represent observationally the initial conditions for protostellar collapse that must be input into all models of star formation. Th...

متن کامل

Molecular cloud regulated star formation in galaxies

We describe a numerical implementation of star formation in disk galaxies, in which the conversion of cooling gas to stars in the multiphase interstellar medium is governed by the rate at which molecular clouds are formed and destroyed. In the model, clouds form from thermally unstable ambient gas and get destroyed by feedback from massive stars and thermal conduction. Feedback in the ambient p...

متن کامل

Molecular Cloud Formation in Shock-compressed Layers

We investigate the propagation of a shock wave into a warm neutral medium and cold neutral medium by one-dimensional hydrodynamic calculations with detailed treatment of thermal and chemical processes. Our main result shows that thermal instability inside the shock-compressed layer produces a geometrically thin, dense layer in which a large amount of hydrogen molecules is formed. Linear stabili...

متن کامل

Probing the Evolution of Molecular Cloud Structure

We have derived large-scale dust column density maps for a complete set of nearby molecular clouds using a near-infrared extinction mapping technique. With these data, we performed the first systematic study of column density probability distributions in molecular clouds. We found that the probability density functions (PDFs) of non-star-forming clouds are almost always well-fitted by lognormal...

متن کامل

Giant Molecular Clouds in M31 – I: Molecular Cloud Properties

We present Berkeley Illinois Maryland Association (BIMA) millimeter interferometer observations of giant molecular clouds (GMCs) along a spiral arm in M31. The observations consist of a survey using the compact configuration of the interferometer and follow-up, higher-resolution observations on a subset of the detections in the survey. The data are processed using an analysis algorithm designed...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Astrophysical Journal

سال: 2006

ISSN: 0004-637X,1538-4357

DOI: 10.1086/502710