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The Birmingham Solar Oscillations Network (BiSON) is a collection of ground-based automated telescopes observing oscillations of the Sun. The network has been operating since the early 1990s. We present development work on a prototype next…

Instrumentation and Methods for Astrophysics · Physics 2021-01-26 S J Hale , W J Chaplin , G R Davies , Y P Elsworth

We describe a new spectrophotometer for the Birmingham Solar Oscillations Network (BiSON), based on a next generation observation platform, BiSON:NG, a significantly miniaturised system making use of inexpensive consumer-grade hardware and…

Instrumentation and Methods for Astrophysics · Physics 2022-12-12 S. J. Hale , W. J. Chaplin , G. R. Davies , Y. P. Elsworth , R. Howe

The Birmingham Solar Oscillations Network (BiSON) has provided high-quality high-cadence observations from as far back in time as 1978. These data must be calibrated from the raw observations into radial velocity and the quality of the…

Solar and Stellar Astrophysics · Physics 2014-09-01 G. R. Davies , W. J. Chaplin , Y. Elsworth , S. J. Hale

The Birmingham Solar-Oscillations Network (BiSON) has been collecting data for over 30yrs and so observations span nearly three 11yr solar activity cycles. This allows us to address important questions concerning the solar cycle and its…

Astrophysics · Physics 2008-10-21 A. M. Broomhall , W. J. Chaplin , Y. Elsworth , R. New , G. A. Verner

The Birmingham Solar-Oscillations Network (BiSON) has collected helioseismic data over three solar cycles. We use these data to determine how the internal properties of the Sun during this minimum differ from the previous two minima. The…

Solar and Stellar Astrophysics · Physics 2010-03-24 Sarbani Basu , Anne-Marie Broomhall , William J. Chaplin , Yvonne Elsworth , Stephen Fletcher , Roger New

We examine the frequency shifts in low-degree helioseismic modes from the Birmingham Solar-Oscillations Network (BiSON) covering the period from 1985 - 2016, and compare them with a number of global activity proxies well as a…

Solar and Stellar Astrophysics · Physics 2017-07-26 R. Howe , G. R. Davies , W. J. Chaplin , Y. Elsworth , S. Basu , S. J. Hale , W. H. Ball , R. W. Komm

Over 30 years of solar data have been acquired by the Birmingham Solar Oscillations Network (BiSON), an international network of telescopes used to study oscillations of the Sun. Five of the six BiSON telescopes are located at major…

Instrumentation and Methods for Astrophysics · Physics 2017-08-23 S. J. Hale , W. J. Chaplin , G. R. Davies , Y. P. Elsworth , R. Howe , M. N. Lund , E. Z. Moxon , A. Thomas , P. L. Pallé , E. J. Rhodes

We present a list of "best possible" estimates of low-degree p-mode frequencies, from 8640 days of observations made by the Birmingham Solar-Oscillations Network (BiSON). This is the longest stretch of helioseismic data ever used for this…

Solar and Stellar Astrophysics · Physics 2015-05-13 A-M. Broomhall , W. J. Chaplin , G. R. Davies , Y. Elsworth , S. T. Fletcher , S. J. Hale , B. Miller , R. New

We have used data collected by the Birmingham Solar-Oscillations Network (BiSON) to perform a helioseismic diagnosis of changes to the Sun's internal structure between four successive solar cycle minima, beginning with the minimum at the…

Solar and Stellar Astrophysics · Physics 2026-02-10 Sarbani Basu , William J. Chaplin , Rachel Howe , Yvonne Elsworth , Steven J. Hale , Eleanor Murray

When simulating full-disc helioseismic data, instrumental noise has traditionally been treated as time-independent. However, in reality, instrumental noise will often vary to some degree over time due to line of sight velocity variations…

Solar and Stellar Astrophysics · Physics 2009-03-23 S. T. Fletcher , R. New , W. J. Chaplin , Y. Elsworth

We have used 4752 days of data collected by the Birmingham Solar-Oscillations Network (BiSON) to determine very precise oscillation frequencies of acoustic low-degree modes that probe the solar core. We compare the fine (small frequency)…

We present a new and up-to-date analysis of the solar low-degree $p$-mode parameter shifts from the Birmingham Solar-Oscillations Network (BiSON) over the past 22 years, up to the end of 2014. We aim to demonstrate that they are not…

Solar and Stellar Astrophysics · Physics 2015-11-04 R. Howe , G. R. Davies , W. J. Chaplin , Y. P. Elsworth , S. J. Hale

The Birmingham Solar Oscillations Network (BiSON) observes acoustic oscillations of the Sun. The dominant noise source is caused by fluctuations of Earth's atmosphere, and BiSON seeks to mitigate this effect by combining multiple rapid…

Instrumentation and Methods for Astrophysics · Physics 2023-03-02 S. J. Hale , W. J. Chaplin , G. R. Davies , Y. P. Elsworth , R. Howe

Low-degree solar p-mode observations from the long-lived Birmingham Solar Oscillations Network (BiSON) stretch back further than any other single helioseismic data set. Results from BiSON have suggested that the response of the mode…

Solar and Stellar Astrophysics · Physics 2018-07-18 R. Howe , W. J. Chaplin , G. R. Davies , Y. Elsworth , S. Basu , A. -M. Broomhall

Although there are now some tentative signs that the start of cycle 24 has begun there is still considerable interest in the somewhat unusual behaviour of the current solar minimum and the apparent delay in the true start of the next cycle.…

Solar and Stellar Astrophysics · Physics 2010-03-23 Stephen Fletcher , Roger New , Anne-Marie Broomhall , William Chaplin , Yvonne Elsworth

We present results from fitting $p$-mode spectra derived from 7-d segments of Sun-as-a-star helioseismic observations from the Birmingham Solar Oscillations Network covering 32 yr. The results show a clear dependence of the mode frequencies…

Solar and Stellar Astrophysics · Physics 2025-01-15 R. Howe , W. J. Chaplin , Y. P. Elsworth , S. J. Hale , E. Hatt , M. B. Nielsen

In recent years solar oscillations have been studied in great detail, both observationally and theoretically; so, perhaps, the Sun currently is the best understood pulsating star. The observational studies include long, almost uninterrupted…

Solar and Stellar Astrophysics · Physics 2010-02-01 A. G. Kosovichev

The rapid deployment of wireless sensor network (WSN) poses the challenge of finding optimal locations for the network nodes, especially so in (i) unknown and (ii) obstacle-rich environments. This paper addresses this challenge with BISON…

Networking and Internet Architecture · Computer Science 2020-09-11 K. Eledlebi , D. Ruta , H. Hildmann , F. Saffre , Y. Al Hammadi , A. F. Isakovic

We analyze Sun-as-a-star observations spanning over solar cycles 22 -- 24 from the ground-based network BiSON and solar cycles 23 -- 24 collected by the space-based VIRGO and GOLF instruments on board the {\it SoHO} satellite. Using…

Solar and Stellar Astrophysics · Physics 2019-01-30 Kiran Jain , Sushanta Tripathy , Frank Hill , David Salabert , Rafael A. Garcia , Anne-Marie Broomhall

Birmingham Solar Oscillations Network (BiSON) instruments use resonant scattering spectrometers to make unresolved Doppler velocity observations of the Sun. Unresolved measurements are not homogenous across the solar disc and so the…

Solar and Stellar Astrophysics · Physics 2015-05-13 A. M. Broomhall , W. J. Chaplin , Y. Elsworth , R. New
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