Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1990-1994  (2)
  • 1960-1964  (1)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Book reviews (1994)
    Springer
    Space science reviews 67 (1994), S. 223-232 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00750528
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Angular momentum transport in pre-main-sequence stars of intermediate mass (1990)
    Springer
    Solar physics 128 (1990), S. 287-298 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Pre-Main-Sequence stars with masses between 2 and 5 M ⊙ (Herbig Ae/Be stars) have radiative subphotospheric envelopes. However, they possess strong stellar winds and show definite signs of activity which could be linked to surface magnetic field. Therefore, they must lose angular momentum at a significant rate. We investigate the effect of such angular momentum losses on the internal structure of these stars, and on the distribution of angular velocity inside them. This paper presents a preliminary analysis guided by an analogy with laboratory and geophysical fluids. We propose that the friction exerted at the stellar surface by the angular momentum losses produces a mixed layer below the surface, separated from the unperturbed interior by an interface. Using scaling laws established by experimental studies of sheared stratified fluids, we discuss a simplified model for the evolution of the mixed layer. Although this model is still too preliminary to allow quantitative predictions, we show that for a reasonable choice of parameters, the mixed layer penetrates into the stellar interior on a time-scale of 106 years, comparable to the Kelvin time-scale for the Herbig Ae/Be stars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00154165
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    La gamma astronomie (1963)
    Springer
    Space science reviews 1 (1963), S. 774-780 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract It is possible to predict the amount of gamma rays which are produced in various astronomical objects = gamma rays due to nuclear reactions, to bremsstrahlung, to cosmic rays, to annihilation of matter and anti-matter. These predictions are compared to the results of the observations with Explorer XI and are used to suggest new experiments. The following experiments are suggested: (1) to measure the γ flash associated with Supernovae; (2) to study the energy spectrum of γ rays from radio-sources; (3) to study the γ rays produced in the galaxy, in the halo, and in extragalactic nebulae. The weight of the instruments is sufficiently low to put γ astronomy among the immediate program of European space research.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00212453
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...