ON THE MAGNETIC FIELD OF OFF-LIMB SPICULES

Journal Article · Sun Jan 10 00:00:00 EST 2010 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/708/2/1579· OSTI ID:21392392

Centeno, Rebecca ^[1]; Trujillo Bueno, Javier; Asensio Ramos, Andres ^[2]

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1. High Altitude Observatory (NCAR), 3080 Center Green Dr., Boulder, CO 80301 (United States)
2. Instituto de Astrofisica de Canarias, Calle VIa Lactea S/N, 38205 La Laguna (Spain)

Determining the magnetic field related to solar spicules is vital for developing adequate models of these plasma jets, which are thought to play a key role in the thermal, dynamic, and magnetic structure of the chromosphere. Here we report on the magnetic properties of off-limb spicules in a very quiet region of the solar atmosphere, as inferred from new spectropolarimetric observations in the He I 10830 A triplet obtained with the Tenerife Infrared Polarimeter. We have used a novel inversion code for Stokes profiles caused by the joint action of atomic level polarization and the Hanle and Zeeman effects to interpret the observations (HAZEL, from HAnle and ZEeman Light). Magnetic fields as strong as approx50 G were detected in a very localized area of the slit, which could represent a possible lower value of the field strength of organized network spicules.

• OSTI ID: 21392392
• Journal Information: Astrophysical Journal, Vol. 708, Issue 2; Other Information: DOI: 10.1088/0004-637X/708/2/1579; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CHROMOSPHERE
MAGNETIC FIELDS
MAGNETIC PROPERTIES
PLASMA JETS
POLARIMETERS
POLARIZATION
SOLAR PROMINENCES
SUN
ZEEMAN EFFECT
ATMOSPHERES
MAIN SEQUENCE STARS
PHYSICAL PROPERTIES
SOLAR ACTIVITY
SOLAR ATMOSPHERE
STARS
STELLAR ACTIVITY
STELLAR ATMOSPHERES