Statistical evolution of quiet-Sun small-scale magnetic features using Sunrise observations

نویسندگان
چکیده

برای دانلود رایگان 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

Turbulent magnetic fields in the quiet Sun: implications of Hinode observations and small-scale dynamo simulations

Using turbulent MHD simulations (magnetic Reynolds numbers up to≈ 8000) and Hinode observations, we study effects of turbulence on measuring the solar magnetic field outside active regions. Firstly, from synthetic Stokes V profiles for the FeI lines at 6301 and 6302 Å, we show that a peaked probability distribution function (PDF) for observationally-derived field estimates is consistent with a ...

متن کامل

Small-scale Magnetic Reconnection in the Quiet Sun

Recent observations indicate that small-scale magnetic re-connection ubiquitously occurs in the quiet Sun as well as in active regions. Particularly interesting is the latest nding of close associations among (1) magnetic ux cancellation seen from photospheric magne-tograms, (2) chromospheric uppow events seen in the H line and (3) transition region explosive events seen in UV lines. I present ...

متن کامل

The Strength of Quiet Sun Magnetic Fields

We present new quantitative measurements of magnetic fields on the quiet Sun. The object was (a) to measure magnetic field strengths, and (b) to test the “kilogauss model,” which posits that the apparently weak fields are actually subtelescopic knots of kilogauss fields with small filling factors. We used a new arrangement we call the spectro-videomagnetograph (SPVMG), which applies the videoma...

متن کامل

Quiet Sun coronal heating: statistical model

Recent observations of Krucker & Benz (1998) give strong support to Parker’s hypothesis (1988) that small scale dissipative events make the main contribution to quiet Sun coronal heating. They also showed that these small scale events are associated not only with the magnetic network, but also with the cell interiors (Benz & Krucker, 1998). Taking into account in addition the results of the ana...

متن کامل

Magnetic field emergence in quiet Sun granules

Aims. We describe a new form of small-scale magnetic flux emergence in the quiet Sun. This process seems to take vertical magnetic fields from the solar interior to the photosphere, where they appear above granular convection cells. Methods. High-cadence time series of spectropolarimetric measurements obtained by Hinode in a quiet region near disk center are analyzed. We extract line parameters...

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: Astronomy & Astrophysics

سال: 2017

ISSN: 0004-6361,1432-0746

DOI: 10.1051/0004-6361/201527738