Structure and Development of Solar Active Regions

Structure and Development of Solar Active Regions
Author: K.O. Kiepenheuer
Publisher: Springer Science & Business Media
Total Pages: 610
Release: 2012-12-06
Genre: Science
ISBN: 9401168156

K. O. KIEPENHEUER ( Fraunhofer Institut, Freiburg i. Br., Germany) The present symposium, to my knowledge the largest ever held in the field of solar research (170 astronomers from 21 countries) was held in the building of the Hun garian Academy of Sciences in Budapest from September 4 to 8, 1967. It was the 35th symposium organized and sponsored by the International Astronomical Union. The majority of participants were financedfrom national sources. The Organizing Commit tee consisted of K. O. Kiepenheuer (Chairman), L. Davis, L. Dezso (Local Organizer), A.D. Fokker, R. Michard, A.B. Severny, H.J. Smith, Z. Svestka, and H. Tanaka. In order to ensure prompt publication, the manuscripts had to be supplied by the authors 1 month after the meeting. The discussions have been recorded on tape. Their reproduction in this book, however, is based almost completely on the contributors' writing down their comments and questions on the spot. Two special projects have been reported and discussed shortly during the sym posium: The world wide project 'Cooperative Study of Solar Active Regions' (CSSAR) organized by Dr. R. Michard, under the auspices of the IAU, which has put at the disposal of our solar community a precious observing material on Active Regions over a period of 6 months.

Estimating the Flare-production Potential of Solar Active Regions from Analysis of Real-time Magnetic Field Data

Estimating the Flare-production Potential of Solar Active Regions from Analysis of Real-time Magnetic Field Data
Author: D. M. Rust
Publisher:
Total Pages: 36
Release: 1973
Genre: Magnetic fields
ISBN:

A magnetograph at the Sacramento Peak Observatory is being used on a daily basis to record the magnetic fields in solar active regions. Contour maps of the line-of-sight component of the field are available to the observers and to the flare prediction groups at NOAA and AWS within an hour after observation. The contour maps reveal many details of both weak and strong magnetic fields that are closely associated with large and small flares. Through the use of several examples, empirical rules for estimating flare likelihood are developed. Analysis of the magnetograms shows that flares are probably associated with X-type or Y-type neutral points in the magnetic fields of the solar chromosphere or lower corona. (Author).

Regions of Recent Star Formation

Regions of Recent Star Formation
Author: R.S. Bohn
Publisher: Springer Science & Business Media
Total Pages: 490
Release: 2012-12-06
Genre: Science
ISBN: 9400977786

The symposium on "Neutral Clouds near HII Regions" was prompted by an obvious need to bring together workers specifically interested in the dynamical and photochemical effects in regions showing clear evidence of on-going star formation. This is currently an are a of considerable research activity with much new observational material over the wavelength range from X-ray to radio. Furthermore, the field isbeginning to mature. No longer is molecular spectroscopy concerned only with the search for new lines and with preliminary surveys. No longer are evolving HII regions modelled with the naive assumption of constant density. Similarly, ideas of successive star formation, "champagne" and "blister" models of HII regions, and refinements to abundance calculations are examples which show that theoretical initiative is keeping pace. We were both surprised and gratified by the number of contributed papers and the extent to which they addressed the subject matter. In the proceedings we have grouped these papers near the most appropriate of the four invited review papers. The subjects of these reviews are in the general areas of "Evolution of HII Regions", "Dynamical Interactions", "Chemistry in Active Regions" and "Infrared and Maser Sources". The symposium comprised 42 orally presented papers and 23 poster papers. AII but two are reproduced in this volume.

Regions of Recent Star Formation

Regions of Recent Star Formation
Author: Herzberg Institute of Astrophysics
Publisher: Springer Science & Business Media
Total Pages: 526
Release: 1982-02-28
Genre: Science
ISBN: 9789027713834

Proceedings of the Symposium on `Neutral Clouds Near Hll Regions - Dynamics and Photochemistry' held in Penticton, British Columbia, 24-26 June 1981

Hybrid Intelligent Systems

Hybrid Intelligent Systems
Author: Ajith Abraham
Publisher: Springer Nature
Total Pages: 1380
Release: 2023-05-24
Genre: Technology & Engineering
ISBN: 3031274091

This book highlights the recent research on hybrid intelligent systems and their various practical applications. It presents 97 selected papers from the 22nd International Conference on Hybrid Intelligent Systems (HIS 2022) and 26 papers from the 18th International Conference on Information Assurance and Security, which was held online, from 13 to 15 December 2022. A premier conference in the field of artificial intelligence and machine learning applications, HIS–IAS 2022, brought together researchers, engineers and practitioners whose work involves intelligent systems, network security and their applications in industry. Including contributions by authors from over 35 countries, the book offers a valuable reference guide for all researchers, students and practitioners in the fields of Computer Science and Engineering.

The Biological Bulletin

The Biological Bulletin
Author: Frank Rattray Lillie
Publisher:
Total Pages: 514
Release: 1925
Genre: Biology
ISBN:

Vol. 17, 21-105 contain Annual reports of the Marine Biological Laboratory for 1907/08-1952.