YAOPBM-II: extension to higher degrees and to shorter time series
Creators
- 1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
Description
In 2005, I presented a new fitting methodology (Yet AnOther Peak Bagging Method -YAOPBM), derived for very-long time series (2088-day-long) and applied it to low degree modes, ι ≤ 25. That very-long time series was also sub-divided into shorter segments (728-day-long) that were each fitted over the same range of degrees, to estimate changes with solar activity levels. I present here the extension of this method in several 'directions': a) to substantially higher degrees (ι ≤ 125); b) to shorter time series (364- and 182-day-long); and c) to additional 728-day-long segments, covering now some 10 years of observations. I discuss issues with the fitting, namely the leakage matrix, and the f- and p1 mode at very low frequencies, and I present some of the characteristics of the observed temporal changes.
Availability note (English)
Available from http://dx.doi.org/10.1088/1742-6596/118/1/012082Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Physics. Conference Series (Online)
- Journal Volume
- 118
- Journal Issue
- 1
- Journal Page Range
- [13 p.]
- ISSN
- 1742-6596
Conference
- Title
- 2. HELAS international conference on helioseismology, asteroseismology and MHD connections
- Dates
- 20-24 Aug 2007
- Place
- Goettingen (Germany)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41036378
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ASTROPHYSICS; DATA ANALYSIS; OSCILLATION MODES; OSCILLATIONS; SOLAR ACTIVITY; TIME DEPENDENCE
- Descriptors DEC
- PHYSICS; STELLAR ACTIVITY