Hydrodynamic Modeling of Coronal Plasma and Comparison with Observations

نویسندگان

  • F. Reale
  • G. Peres
  • R. Betta
چکیده

We show that hydrodynamic modeling coupled to the synthesis of the plasma emission, taking into account the response of a given instrument, provides very useful information for the interpretation of ar-ing coronal loops observed in the X-ray band. We show how the same model are would appear very diierent if observed with Yohkoh SXT and TRACE and how our approach can help in providing a very detailed plasma diagnostics for such observations.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Plasma Sloshing in Pulse-heated Solar and Stellar Coronal Loops

INAF-Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90134 Palermo, Italy Abstract There is evidence that coronal heating is highly intermittent, and flares are the high energy extreme. The properties of the heat pulses are difficult to constrain. Here hydrodynamic loop modeling shows that several large amplitude oscillations (∼ 20% in density) are triggered in flare light curves ...

متن کامل

Emission Measure Distribution in Loops Impulsively Heated at the Foot-points

This work is prompted by the evidence of sharply peaked emission measure distributions in active stars, and by the claims of isothermal loops in solar coronal observations, at variance with the predictions of hydrostatic loop models with constant cross-section and uniform heating. We address the problem with loops heated at the foot-points. Since steady heating does not allow static loop models...

متن کامل

Physics of Coronal Loops

Coronal loops are the basic elements of the solar corona and are responsible for the totality of the coronal X-ray emission. Loop physics is therefore important to understand the structure, heating, dynamics and evolution of the corona. A well-established and useful approach to study loop physics has been the detailed hydrodynamic modeling of the connned plasma, coupled to the synthesis of obse...

متن کامل

تحلیل دینامیکی سد‌های بتنی وزنی با مدلسازی مخزن به روش‌های لاگرانژی و اویلری

Because of different behavior of reservoir water and dam material, the determination of hydrodynamic pressure during earthquake is very complicated. Thus, different formulations have been presented for modeling of the dam reservoir system under dynamic loading such as earthquake. These formulations can be categorized into two general groups, which are Lagrangian and Eulerian, each having advant...

متن کامل

Anomalous-plasmoid-ejection-induced secondary magnetic reconnection: modeling solar flares and coronal mass ejections by laser–plasma experiments

The driving mechanism of solar flares and coronal mass ejections is a topic of ongoing debate, apart from the consensus that magnetic reconnection plays a key role during the impulsive process. While present solar research mostly depends on observations and theoretical models, laboratory experiments based on high-energy density facilities provide the third method for quantitatively comparing as...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007